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  1. San Carlos Apache Tribe- 2012 Project

    Broader source: Energy.gov [DOE]

    Under this project, the San Carlos Apache Tribe will study the feasibility of solar energy projects within the reservation with the potential to generate a minimum of 1 megawatt (MW).

  2. San Carlos, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Energy Companies in San Carlos, California Cleeves Engines, Inc. LiveFuels Inc Tesla Motors Tesla Motors Inc References US Census Bureau Incorporated place and minor...

  3. San Carlos Apache Tribe 2008 - 2011 Energy Program Review and...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    2008 - 2011 Energy Program Review & 2011 - 2012 ENERGY ORGANIZATION ANALYSIS Burden ... * 11,700 resident Tribal members. * Communities - San Carlos, Bylas, Peridot. * Cutter ...

  4. San Carlos Apache Tribe - Energy Organizational Analysis

    SciTech Connect (OSTI)

    Rapp, James; Albert, Steve

    2012-04-01

    The San Carlos Apache Tribe (SCAT) was awarded $164,000 in late-2011 by the U.S. Department of Energy (U.S. DOE) Tribal Energy Program's "First Steps Toward Developing Renewable Energy and Energy Efficiency on Tribal Lands" Grant Program. This grant funded:  The analysis and selection of preferred form(s) of tribal energy organization (this Energy Organization Analysis, hereinafter referred to as "EOA").  Start-up staffing and other costs associated with the Phase 1 SCAT energy organization.  An intern program.  Staff training.  Tribal outreach and workshops regarding the new organization and SCAT energy programs and projects, including two annual tribal energy summits (2011 and 2012). This report documents the analysis and selection of preferred form(s) of a tribal energy organization.

  5. San Carlos Apache Tribe Energy Organization Analysis & Solar...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... 1.4MW community-scale solar power @ Apache Gold CasinoResort. * Install solar @ new Bylas ... Energy Summit December 10-11, 2012 Apache Gold CasinoResort San Carlos, Arizona Gail ...

  6. Project Reports for San Carlos Apache Tribe- 2012 Project

    Office of Energy Efficiency and Renewable Energy (EERE)

    Under this project, the San Carlos Apache Tribe will study the feasibility of solar energy projects within the reservation with the potential to generate a minimum of 1 megawatt (MW).

  7. Solar Feasibility Study May 2013 - San Carlos Apache Tribe

    SciTech Connect (OSTI)

    Rapp, Jim; Duncan, Ken; Albert, Steve

    2013-05-01

    The San Carlos Apache Tribe (Tribe) in the interests of strengthening tribal sovereignty, becoming more energy self-sufficient, and providing improved services and economic opportunities to tribal members and San Carlos Apache Reservation (Reservation) residents and businesses, has explored a variety of options for renewable energy development. The development of renewable energy technologies and generation is consistent with the Tribe’s 2011 Strategic Plan. This Study assessed the possibilities for both commercial-scale and community-scale solar development within the southwestern portions of the Reservation around the communities of San Carlos, Peridot, and Cutter, and in the southeastern Reservation around the community of Bylas. Based on the lack of any commercial-scale electric power transmission between the Reservation and the regional transmission grid, Phase 2 of this Study greatly expanded consideration of community-scale options. Three smaller sites (Point of Pines, Dudleyville/Winkleman, and Seneca Lake) were also evaluated for community-scale solar potential. Three building complexes were identified within the Reservation where the development of site-specific facility-scale solar power would be the most beneficial and cost-effective: Apache Gold Casino/Resort, Tribal College/Skill Center, and the Dudleyville (Winkleman) Casino.

  8. San Carlos Apache Tribe Set to Break Ground on New Solar Project...

    Energy Savers [EERE]

    This spring, the San Carlos Apache Tribe is planning to break ground on a new tribally financed and owned 1.1-megawatt (MW) solar photovoltaic (PV) array. The PV system will ...

  9. MONTE-CARLO BURNUP CALCULATION UNCERTAINTY QUANTIFICATION AND PROPAGATION DETERMINATION

    SciTech Connect (OSTI)

    Nichols, T.; Sternat, M.; Charlton, W.

    2011-05-08

    MONTEBURNS is a Monte-Carlo depletion routine utilizing MCNP and ORIGEN 2.2. Uncertainties exist in the MCNP transport calculation, but this information is not passed to the depletion calculation in ORIGEN or saved. To quantify this transport uncertainty and determine how it propagates between burnup steps, a statistical analysis of a multiple repeated depletion runs is performed. The reactor model chosen is the Oak Ridge Research Reactor (ORR) in a single assembly, infinite lattice configuration. This model was burned for a 25.5 day cycle broken down into three steps. The output isotopics as well as effective multiplication factor (k-effective) were tabulated and histograms were created at each burnup step using the Scott Method to determine the bin width. It was expected that the gram quantities and k-effective histograms would produce normally distributed results since they were produced from a Monte-Carlo routine, but some of results do not. The standard deviation at each burnup step was consistent between fission product isotopes as expected, while the uranium isotopes created some unique results. The variation in the quantity of uranium was small enough that, from the reaction rate MCNP tally, round off error occurred producing a set of repeated results with slight variation. Statistical analyses were performed using the {chi}{sup 2} test against a normal distribution for several isotopes and the k-effective results. While the isotopes failed to reject the null hypothesis of being normally distributed, the {chi}{sup 2} statistic grew through the steps in the k-effective test. The null hypothesis was rejected in the later steps. These results suggest, for a high accuracy solution, MCNP cell material quantities less than 100 grams and greater kcode parameters are needed to minimize uncertainty propagation and minimize round off effects.

  10. Accurate and precise determination of critical properties from Gibbs ensemble Monte Carlo simulations

    SciTech Connect (OSTI)

    Dinpajooh, Mohammadhasan; Bai, Peng; Allan, Douglas A.; Siepmann, J. Ilja

    2015-09-21

    Since the seminal paper by Panagiotopoulos [Mol. Phys. 61, 813 (1997)], the Gibbs ensemble Monte Carlo (GEMC) method has been the most popular particle-based simulation approach for the computation of vapor–liquid phase equilibria. However, the validity of GEMC simulations in the near-critical region has been questioned because rigorous finite-size scaling approaches cannot be applied to simulations with fluctuating volume. Valleau [Mol. Simul. 29, 627 (2003)] has argued that GEMC simulations would lead to a spurious overestimation of the critical temperature. More recently, Patel et al. [J. Chem. Phys. 134, 024101 (2011)] opined that the use of analytical tail corrections would be problematic in the near-critical region. To address these issues, we perform extensive GEMC simulations for Lennard-Jones particles in the near-critical region varying the system size, the overall system density, and the cutoff distance. For a system with N = 5500 particles, potential truncation at 8σ and analytical tail corrections, an extrapolation of GEMC simulation data at temperatures in the range from 1.27 to 1.305 yields T{sub c} = 1.3128 ± 0.0016, ρ{sub c} = 0.316 ± 0.004, and p{sub c} = 0.1274 ± 0.0013 in excellent agreement with the thermodynamic limit determined by Potoff and Panagiotopoulos [J. Chem. Phys. 109, 10914 (1998)] using grand canonical Monte Carlo simulations and finite-size scaling. Critical properties estimated using GEMC simulations with different overall system densities (0.296 ≤ ρ{sub t} ≤ 0.336) agree to within the statistical uncertainties. For simulations with tail corrections, data obtained using r{sub cut} = 3.5σ yield T{sub c} and p{sub c} that are higher by 0.2% and 1.4% than simulations with r{sub cut} = 5 and 8σ but still with overlapping 95% confidence intervals. In contrast, GEMC simulations with a truncated and shifted potential show that r{sub cut} = 8σ is insufficient to obtain accurate results. Additional GEMC simulations for hard

  11. Characterizing the three-orbital Hubbard model with determinant quantum Monte Carlo

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Kung, Y. F.; Chen, C. -C.; Wang, Yao; Huang, E. W.; Nowadnick, E. A.; Moritz, B.; Scalettar, R. T.; Johnston, S.; Devereaux, T. P.

    2016-04-29

    Here, we characterize the three-orbital Hubbard model using state-of-the-art determinant quantum Monte Carlo (DQMC) simulations with parameters relevant to the cuprate high-temperature superconductors. The simulations find that doped holes preferentially reside on oxygen orbitals and that the (π,π) antiferromagnetic ordering vector dominates in the vicinity of the undoped system, as known from experiments. The orbitally-resolved spectral functions agree well with photoemission spectroscopy studies and enable identification of orbital content in the bands. A comparison of DQMC results with exact diagonalization and cluster perturbation theory studies elucidates how these different numerical techniques complement one another to produce a more complete understandingmore » of the model and the cuprates. Interestingly, our DQMC simulations predict a charge-transfer gap that is significantly smaller than the direct (optical) gap measured in experiment. Most likely, it corresponds to the indirect gap that has recently been suggested to be on the order of 0.8 eV, and demonstrates the subtlety in identifying charge gaps.« less

  12. CX-000117: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    San Carlos Apache Tribe of the San Carlos Reservation Energy AuditsCX(s) Applied: B5.1, A9Date: 12/07/2009Location(s): ArizonaOffice(s): Energy Efficiency and Renewable Energy

  13. CX-000120: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    San Carlos Apache Tribe of the San Carlos Reservation Technical Consulting ServicesCX(s) Applied: A9, A11Date: 12/07/2009Location(s): ArizonaOffice(s): Energy Efficiency and Renewable Energy

  14. Monte Carlo determination of the low-energy constants of a spin-(1/2) Heisenberg model with spatial anisotropy

    SciTech Connect (OSTI)

    Jiang, F.-J.; Nyfeler, M.; Kaempfer, F.

    2009-07-15

    Motivated by the possible mechanism for the pinning of the electronic liquid crystal direction in YBa{sub 2}Cu{sub 3}O{sub 6.45} as proposed by Pardini et al. [Phys. Rev. B 78, 024439 (2008)], we use the first-principles Monte Carlo method to study the spin-(1/2) Heisenberg model with antiferromagnetic couplings J{sub 1} and J{sub 2} on the square lattice. In particular, the low-energy constants spin stiffness {rho}{sub s}, staggered magnetization M{sub s}, and spin wave velocity c are determined by fitting the Monte Carlo data to the predictions of magnon chiral perturbation theory. Further, the spin stiffnesses {rho}{sub s1} and {rho}{sub s2} as a function of the ratio J{sub 2}/J{sub 1} of the couplings are investigated in detail. Although we find a good agreement between our results with those obtained by the series expansion method in the weakly anisotropic regime, for strong anisotropy we observe discrepancies.

  15. San Francisco

    National Nuclear Security Administration (NNSA)

    2%2A en NNSA to Conduct Aerial Radiological Surveys Over San Francisco, Pacifica, Berkeley, And Oakland, CA Areas http:nnsa.energy.govmediaroompressreleasesamsca

  16. San Carlos Apache Tribe- 2011 Project

    Broader source: Energy.gov [DOE]

    The core purpose of this project is to provide for the analysis and implementation of a Tribal Energy Organization that can effectively provide for coordination, leadership, and energy expertise to the rest of the tribal government in understanding and pursuing energy programs and plans.

  17. San Carlos Apache Tribe Solar Feasibility Study

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... Mesa off-setting electrical demand in the SCIP ... and Sale Closest feasible transmission connection is 18 miles away. ... connect to the SCIP distribution system at the base of ...

  18. EIS-0496: San Luis Transmission Project; Alameda, Merced, San...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    6: San Luis Transmission Project; Alameda, Merced, San Joaquin and Stanislaus Counties, California EIS-0496: San Luis Transmission Project; Alameda, Merced, San Joaquin and...

  19. CX-000118: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    San Carlos Apache Tribe of the San Carlos Reservation Energy Audits Energy Efficiency RetrofitsCX(s) Applied: B2.5, B5.1, A1Date: 12/07/2009Location(s): ArizonaOffice(s): Energy Efficiency and Renewable Energy

  20. CX-000119: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    San Carlos Apache Tribe of the San Carlos Reservation Energy Efficiency and Conservation StrategyCX(s) Applied: A1, A9, A11Date: 12/07/2009Location(s): ArizonaOffice(s): Energy Efficiency and Renewable Energy

  1. MO-G-BRF-05: Determining Response to Anti-Angiogenic Therapies with Monte Carlo Tumor Modeling

    SciTech Connect (OSTI)

    Valentinuzzi, D; Simoncic, U; Jeraj, R; Titz, B

    2014-06-15

    Purpose: Patient response to anti-angiogenic therapies with vascular endothelial growth factor receptor - tyrosine kinase inhibitors (VEGFR TKIs) is heterogeneous. This study investigates key biological characteristics that drive differences in patient response via Monte Carlo computational modeling capable of simulating tumor response to therapy with VEGFR TKI. Methods: VEGFR TKIs potently block receptors, responsible for promoting angiogenesis in tumors. The model incorporates drug pharmacokinetic and pharmacodynamic properties, as well as patientspecific data of cellular proliferation derived from [18F]FLT-PET data. Sensitivity of tumor response was assessed for multiple parameters, including initial partial oxygen tension (pO{sub 2}), cell cycle time, daily vascular growth fraction, and daily vascular regression fraction. Results were benchmarked to clinical data (patient 2 weeks on VEGFR TKI, followed by 1-week drug holiday). The tumor pO{sub 2} was assumed to be uniform. Results: Among the investigated parameters, the simulated proliferation was most sensitive to the initial tumor pO{sub 2}. Initial change of 5 mmHg can already Result in significantly different levels of proliferation. The model reveals that hypoxic tumors (pO{sub 2} ? 20 mmHg) show the highest decrease of proliferation, experiencing mean FLT standardized uptake value (SUVmean) decrease for at least 50% at the end of the clinical trial (day 21). Oxygenated tumors (pO{sub 2} 20 mmHg) show a transient SUV decrease (3050%) at the end of the treatment with VEGFR TKI (day 14) but experience a rapid SUV rebound close to the pre-treatment SUV levels (70110%) at the time of a drug holiday (day 1421) - the phenomenon known as a proliferative flare. Conclusion: Model's high sensitivity to initial pO{sub 2} clearly emphasizes the need for experimental assessment of the pretreatment tumor hypoxia status, as it might be predictive of response to antiangiogenic therapies and the occurrence of

  2. U.S. Department of Energy NEPA Categorical Exclusion Determination...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Act: Proposed Action or Project Description: The San Carlos Apache Tribe of Arizona proposes to 1) conduct energy efficient building retrofits to the Shelter Care...

  3. San Francisco Workshop Highlights

    Broader source: Energy.gov [DOE]

    View the video showing highlights from the twelfth annual DOE Solid-State Lighting R&D Workshop in San Francisco. 

  4. Monte Carlo Benchmark

    Energy Science and Technology Software Center (OSTI)

    2010-10-20

    The "Monte Carlo Benchmark" (MCB) is intended to model the computatiional performance of Monte Carlo algorithms on parallel architectures. It models the solution of a simple heuristic transport equation using a Monte Carlo technique. The MCB employs typical features of Monte Carlo algorithms such as particle creation, particle tracking, tallying particle information, and particle destruction. Particles are also traded among processors using MPI calls.

  5. CX-008186: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Arizona TRIBE-SAN CARLOS APACHE TRIBE CX(s) Applied: B2.5, B5.1, B5.16 Date: 04/03/2012 Location(s): Arizona Offices(s): Energy Efficiency and Renewable Energy

  6. Monte Carlo Example Programs

    Energy Science and Technology Software Center (OSTI)

    2006-05-09

    The Monte Carlo example programs VARHATOM and DMCATOM are two small, simple FORTRAN programs that illustrate the use of the Monte Carlo Mathematical technique for calculating the ground state energy of the hydrogen atom.

  7. USBIA-San Carlos Project | Open Energy Information

    Open Energy Info (EERE)

    Yes Activity Buying Transmission Yes Activity Distribution Yes Activity Wholesale Marketing Yes Activity Retail Marketing Yes Alt Fuel Vehicle Yes This article is a stub. You...

  8. Project Reports for San Carlos Apache Tribe- 2011 Project

    Broader source: Energy.gov [DOE]

    The core purpose of this project is to provide for the analysis and implementation of a Tribal Energy Organization that can effectively provide for coordination, leadership, and energy expertise to the rest of the tribal government in understanding and pursuing energy programs and plans.

  9. San Marcos Biomass Facility | Open Energy Information

    Open Energy Info (EERE)

    Marcos Biomass Facility Jump to: navigation, search Name San Marcos Biomass Facility Facility San Marcos Sector Biomass Facility Type Landfill Gas Location San Diego County,...

  10. San Diego County- Wind Regulations

    Broader source: Energy.gov [DOE]

    The County of San Diego has established zoning guidelines for wind turbine systems of varying sizes in the unincorporated areas of San Diego County. Wind turbine systems can be classified as small...

  11. San Diego County- Solar Regulations

    Broader source: Energy.gov [DOE]

    The County of San Diego has established zoning guidelines for solar electric systems of varying sizes in the unincorporated areas of San Diego County. Photovoltaic (PV) systems which have their...

  12. Solar Policy Environment: San Francisco

    Office of Energy Efficiency and Renewable Energy (EERE)

    The City and County of San Francisco’s “Solar San Francisco” Initiative will strive to remove barriers to the deployment of solar technologies in San Francisco as part of its effort to reduce its overall greenhouse gas emissions to 20% below 1990 levels by the year 2012.

  13. Monte Carlo simulation of a Bonner sphere spectrometer for application to the determination of neutron field in the Experimental Advanced Superconducting Tokamak experimental hall

    SciTech Connect (OSTI)

    Hu, Z. M.; Xie, X. F.; Chen, Z. J.; Peng, X. Y.; Du, T. F.; Cui, Z. Q.; Ge, L. J.; Li, T.; Yuan, X.; Zhang, X.; Li, X. Q.; Zhang, G. H.; Chen, J. X.; Fan, T. S.; Hu, L. Q.; Zhong, G. Q.; Lin, S. Y.; Wan, B. N.; Gorini, G.

    2014-11-15

    To assess the neutron energy spectra and the neutron dose for different positions around the Experimental Advanced Superconducting Tokamak (EAST) device, a Bonner Sphere Spectrometer (BSS) was developed at Peking University, with totally nine polyethylene spheres and a SP9 {sup 3}He counter. The response functions of the BSS were calculated by the Monte Carlo codes MCNP and GEANT4 with dedicated models, and good agreement was found between these two codes. A feasibility study was carried out with a simulated neutron energy spectrum around EAST, and the simulated “experimental” result of each sphere was obtained by calculating the response with MCNP, which used the simulated neutron energy spectrum as the input spectrum. With the deconvolution of the “experimental” measurement, the neutron energy spectrum was retrieved and compared with the preset one. Good consistence was found which offers confidence for the application of the BSS system for dose and spectrum measurements around a fusion device.

  14. The impact of absorption coefficient on polarimetric determination of Berry phase based depth resolved characterization of biomedical scattering samples: a polarized Monte Carlo investigation

    SciTech Connect (OSTI)

    Baba, Justin S; Koju, Vijay; John, Dwayne O

    2016-01-01

    The modulation of the state of polarization of photons due to scatter generates associated geometric phase that is being investigated as a means for decreasing the degree of uncertainty in back-projecting the paths traversed by photons detected in backscattered geometry. In our previous work, we established that polarimetrically detected Berry phase correlates with the mean photon penetration depth of the backscattered photons collected for image formation. In this work, we report on the impact of state-of-linear-polarization (SOLP) filtering on both the magnitude and population distributions of image forming detected photons as a function of the absorption coefficient of the scattering sample. The results, based on Berry phase tracking implemented Polarized Monte Carlo Code, indicate that sample absorption plays a significant role in the mean depth attained by the image forming backscattered detected photons.

  15. San Francisco Operations Office

    Office of Legacy Management (LM)

    San Francisco Operations Office 1333 Broadway Oakland, California 94612 Dr. Joseph 0. Ward, Chief Radiological Health Section Department of Health Services 744 P Street Sacramento, California, 95814 SUBJECT: Certification Docket of Gilman Hall Dear Dr. Ward: The Department of Energy (DOE) has completed and reviewed the remedial ac- tions of Gilman Hall located at the University of California, Berkeley, California. Based on this review, DOE certifies that the condition of Gilman Hall is

  16. EIS-0496: San Luis Transmission Project; Alameda, Merced, San...

    Broader source: Energy.gov (indexed) [DOE]

    San Luis & Delta-Mendota Water Authority (Authority) as joint federal and state lead agencies, are preparing an EISEnvironmental Impact Report that assesses the potential...

  17. Carlos Wagner | Argonne National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Carlos Wagner Physicist, Group Leader Telephone (630) 252-3759 E-mail cwagner

  18. Determination of the effective diffusivity of water in a poly (methyl methacrylate) membrane containing carbon nanotubes using kinetic Monte Carlo simulations

    SciTech Connect (OSTI)

    Mermigkis, Panagiotis G.; Tsalikis, Dimitrios G.; Mavrantzas, Vlasis G.

    2015-10-28

    A kinetic Monte Carlo (kMC) simulation algorithm is developed for computing the effective diffusivity of water molecules in a poly(methyl methacrylate) (PMMA) matrix containing carbon nanotubes (CNTs) at several loadings. The simulations are conducted on a cubic lattice to the bonds of which rate constants are assigned governing the elementary jump events of water molecules from one lattice site to another. Lattice sites belonging to PMMA domains of the membrane are assigned different rates than lattice sites belonging to CNT domains. Values of these two rate constants are extracted from available numerical data for water diffusivity within a PMMA matrix and a CNT pre-computed on the basis of independent atomistic molecular dynamics simulations, which show that water diffusivity in CNTs is 3 orders of magnitude faster than in PMMA. Our discrete-space, continuum-time kMC simulation results for several PMMA-CNT nanocomposite membranes (characterized by different values of CNT length L and diameter D and by different loadings of the matrix in CNTs) demonstrate that the overall or effective diffusivity, D{sub eff}, of water in the entire polymeric membrane is of the same order of magnitude as its diffusivity in PMMA domains and increases only linearly with the concentration C (vol. %) in nanotubes. For a constant value of the concentration C, D{sub eff} is found to vary practically linearly also with the CNT aspect ratio L/D. The kMC data allow us to propose a simple bilinear expression for D{sub eff} as a function of C and L/D that can describe the numerical data for water mobility in the membrane extremely accurately. Additional simulations with two different CNT configurations (completely random versus aligned) show that CNT orientation in the polymeric matrix has only a minor effect on D{sub eff} (as long as CNTs do not fully penetrate the membrane). We have also extensively analyzed and quantified sublinear (anomalous) diffusive phenomena over small to moderate

  19. San Francisco | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    San Francisco San Francisco Bay Area Aerial Radiation Assessment Survey (SAN JOSE and SAN FRANCISCO, California) - A helicopter may be seen flying at low altitudes over portions of the San Francisco Bay Area from January 29 through February 6, 2016. The purpose of the flyovers is to measure naturally occurring background radiation. Officials from the National Nuclear... NNSA to Conduct Aerial Radiological Surveys Over San Francisco, Pacifica, Berkeley, And Oakland, CA Areas A U.S. Department of

  20. San Francisco Biodiesel | Open Energy Information

    Open Energy Info (EERE)

    Biodiesel Jump to: navigation, search Name: San Francisco Biodiesel Place: San Francisco, California Zip: 94103 Product: Biodiesel producer based in California. The company is a...

  1. Grupo San Isidro | Open Energy Information

    Open Energy Info (EERE)

    Isidro Jump to: navigation, search Name: Grupo San Isidro Place: San Miguel, Spain Zip: 38620 Sector: Solar Product: Spanish-based retailer of building materials and hardware....

  2. Solar San Jose | Open Energy Information

    Open Energy Info (EERE)

    Jose Jump to: navigation, search Name: Solar San Jose Place: San Jose, California Zip: 95112 Region: Bay Area Website: www.solarsanjose.com Coordinates: 37.3456227,...

  3. San Francisco Biofuels Cooperative | Open Energy Information

    Open Energy Info (EERE)

    Cooperative Jump to: navigation, search Name: San Francisco Biofuels Cooperative Address: 1255 Post St Place: San Francisco, California Zip: 94109 Region: Bay Area Website:...

  4. San_Antonio_Meeting_Summary_Jan1996.pdf

    Office of Environmental Management (EM)

    2008 - 2011 Energy Program Review & 2011 - 2012 ENERGY ORGANIZATION ANALYSIS Burden Basket San Carlos Apache Mission Statement The Apache People will live a balanced life in harmony with spirituality, culture, language, and family unity in an ever-changing world. The Apache People shall create a strategic framework for our tribe to grow and prosper. The Tribe and Reservation * 90 miles east of Phoenix. * 2,400' to 8,300'+. * 1.83 million acres. * 800,000+ acres wooded/forested. * 1M ac.

  5. San Francisco's Streamlined Solar Permitting

    Broader source: Energy.gov [DOE]

    San Francisco’s solar permitting process—which allows permits for systems 4 kW and under to be applied for, approved, paid for, and issued online or in person over-the-counter—is one of the most efficient in the nation. This paper describes the process by which the City and County of San Francisco developed and implemented its streamlined solar permitting process, provides an update on San Francisco’s current e-permitting system, and outlines relevant lessons for other jurisdictions undertaking such work. This paper is structured as a resource for other jurisdictions to access best practices in streamlined permitting and learn from San Francisco’s experience.

  6. San Diego County, California | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Diego County, California San Diego County, California Energy Upgrade California in San Diego County Location: San Diego County, California Seed Funding: $3.9 million-a portion of Los Angeles County's $30 million funding Target Building Types: Residential (single-family and multifamily) Website: https://sdgehomeupgrade.com Energy Upgrade California Motivates Home Improvements in San Diego County As the third largest metropolitan area in California, San Diego County plays a significant role in the

  7. San Jose, California | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    California San Jose, California Better Buildings Program San Jose Location: Hillview-TOCKNA community in San Jose, California Seed Funding: $750,000-a portion of Los Angeles County's $30 million funding Target Building Types: Residential (single-family) Learn More: Read program design story View Presentations: Residential Energy Efficiency Solutions Conference San Jose Leverages Partnerships to Improve Low-Income Households' Energy Efficiency Since May 2011, Better Buildings Program San Jose

  8. The LSNDMC Monte Carlo

    SciTech Connect (OSTI)

    McIlhany, K.; Whitehouse, D.; Smith, D.; Eisner, A.M.; Wang, Y.X.

    1994-12-31

    A Monte Carlo program describing the response of the Liquid Scintillation Neutrino Detector (LSND) at the Los Alamos Meson Physics Facility (LAMPF) was written using the GEANT geometry and simulation package. Neutrino interactions were simulated in the detector through the production of Cerenkov and scintillation light in the range of 2-3 eV. Since GEANT does not normally track photons to electron-volt energies, the tracking program (TRAK) was modified to produce both Cerenkov and scintillator light, the latter being simulated using the Birks equation. The LSND Monte Carlo program was used to predict the quantity of scintillator (b-PBD) used in the mineral oil to provide a ratio of roughly 4:1 light output resulting from scintillation and Cerenkov light respectively.

  9. Quantum Monte Carlo for

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Quantum Monte Carlo for the Electronic Structure of Atoms and Molecules Brian Austin Lester Group, U.C. Berkeley BES Requirements Workshop Rockville, MD February 9, 2010 Outline  Applying QMC to diverse chemical systems  Select systems with high interest and impact  Phenol: bond dissociation energy  Retinal: excitation energy  Algorithmic details  Parallel Strategy  Wave function evaluation O-H Bond Dissociation Energy of Phenol  Ph-OH Ph-O * + H * (36 valence electrons)

  10. Karen Avenue Wind Farm II (San Gorgonio Farms) | Open Energy...

    Open Energy Info (EERE)

    Farm II (San Gorgonio Farms) Jump to: navigation, search Name Karen Avenue Wind Farm II (San Gorgonio Farms) Facility Karen Avenue Windfarm II (San Gorgonio Farms) Sector Wind...

  11. Real Goods Solar San Rafael | Open Energy Information

    Open Energy Info (EERE)

    Rafael Jump to: navigation, search Logo: Real Goods Solar San Rafael Name: Real Goods Solar San Rafael Address: 27 Simms Street Place: San Rafael, California Zip: 94901 Sector:...

  12. EECBG Success Story: New San Antonio Airport Terminal Generating...

    Broader source: Energy.gov (indexed) [DOE]

    new photovoltaic system at the San Antonio International Airport. The new photovoltaic system at the San Antonio International Airport. In early 2010, the City of San Antonio's ...

  13. San Juan Montana Thrust Belt WY Thrust Belt Black Warrior

    U.S. Energy Information Administration (EIA) Indexed Site

    San Juan Montana Thrust Belt WY Thrust Belt Black Warrior Paradox - San Juan NW (2) Uinta- Piceance Paradox - San Juan SE (2) Florida Peninsula Appalachian- NY (1) Appalachian ...

  14. San Diego, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    for Sustainable Energy Center for Environment and National Security at Scripps Clean Tech San Diego San Diego Regional Clean Fuels Coalition San Diego Renewable Energy Society...

  15. San Antonio, Texas Data Dashboard | Department of Energy

    Energy Savers [EERE]

    Data Dashboard San Antonio, Texas Data Dashboard The data dashboard for San Antonio, Texas, a partner in the Better Buildings Neighborhood Program. San Antonio Data Dashboard ...

  16. San Diego County- Solar Zoning Regulations

    Office of Energy Efficiency and Renewable Energy (EERE)

    The County of San Diego has established zoning guidelines for solar electric systems of varying sizes in the unincorporated areas of San Diego County. Photovoltaic (PV) systems which have their...

  17. Solar America City - San Diego, California

    SciTech Connect (OSTI)

    Not Available

    2008-05-01

    This fact sheet highlights San Diego, California, as a DOE Solar America City. Through various collaborations at the local level, San Diego has a goal of 50 megawatts of solar installed by 2010.

  18. MCMini: Monte Carlo on GPGPU

    SciTech Connect (OSTI)

    Marcus, Ryan C.

    2012-07-25

    MCMini is a proof of concept that demonstrates the possibility for Monte Carlo neutron transport using OpenCL with a focus on performance. This implementation, written in C, shows that tracing particles and calculating reactions on a 3D mesh can be done in a highly scalable fashion. These results demonstrate a potential path forward for MCNP or other Monte Carlo codes.

  19. Federal University of Sao Carlos | Open Energy Information

    Open Energy Info (EERE)

    Sao Carlos Jump to: navigation, search Name: Federal University of Sao Carlos Place: Sao Carlos, Sao Paulo, Brazil Zip: 13565-905 Product: Federal university of Sao Carlos....

  20. Isotropic Monte Carlo Grain Growth

    Energy Science and Technology Software Center (OSTI)

    2013-04-25

    IMCGG performs Monte Carlo simulations of normal grain growth in metals on a hexagonal grid in two dimensions with periodic boundary conditions. This may be performed with either an isotropic or a misorientation - and incliantion-dependent grain boundary energy.

  1. Solar Policy Environment: San Diego

    Broader source: Energy.gov [DOE]

    The objective of this project is to support the City’s Green Vision, which is to ultimately ensure that 100% of the city’s electricity needs are met by renewable resources. Over a 24-moth period, the City will implement strategies to achieve a 15% increase in solar installations in San Jose, a 50% increased awareness and knowledge in the community, and more opportunities to purchase or invest in green power.

  2. Energy San Francisco Operations Office

    Office of Legacy Management (LM)

    Depariment of ' Energy San Francisco Operations Office 1333 Broadway Oakland, California 94612 FEB 6 1984 Mr. c:c. canners Energy Systems Group Rockwell International Corporation Post Office BOX 309 Canoga Park Dear 8 a CA 91304 G ers : Remedial action was taken to decontaminate the Hot Cave (Building 003) and Sodium Reactor Experiment (SRE) under Contract No. DE-AT03-76SF75008. The report of the post remedial survey, performed by Argonne National Laboratory, indicates that the levels of

  3. Determination

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Determinants of Household Use of Selected Energy Star Appliances May 2016 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S. Energy Information Administration | Determinants of Household Use of Selected Energy Star Appliances i This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of

  4. Categorical Exclusion Determinations: Office of Electricity Delivery...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... June 7, 2011 CX-006054: Categorical Exclusion Determination San Diego Gas & Electric Borrego Springs Microgrid Demo (Utility Integration of Distributed Energy Storage Systems) ...

  5. EIS-0496: San Luis Transmission Project; Alameda, Merced, San Joaquin and Stanislaus Counties, California

    Broader source: Energy.gov [DOE]

    Western Area Power Administration and the San Luis & Delta-Mendota Water Authority (Authority) as joint federal and state lead agencies, are preparing an EIS/Environmental Impact Report that assesses the potential environmental impacts of the proposed San Luis Transmission Project. Western proposes to construct, own, operate, and maintain a new 230-kilovolt transmission line between its Tracy and San Luis Substations and a new 70-kV transmission line between the San Luis and O'Neill Substations.

  6. City of San Francisco- Green Building Code

    Broader source: Energy.gov [DOE]

    San Francisco adopted a mandatory green building code for new construction projects in September 2008, establishing strict guidelines for residential and commercial buildings according to the...

  7. NNMCAB Board Minutes: Novmeber 2000 San Ildefonso

    Broader source: Energy.gov [DOE]

    Minutes of the November 15, 2000 Board Meeting at San Ildefonso Pueblo Presentation CDC, ChimRisk Control Project on Historical Records, Tom Weidner

  8. Demonstration Home Program—San Diego

    Broader source: Energy.gov [DOE]

    Presents the California Center for Sustainable Energy's communications strategies for, challenges of, and lessons learned from its Home Tour event in San Diego.

  9. City of San Francisco- Commercial Efficiency Rebates

    Broader source: Energy.gov [DOE]

    Businesses in San Francisco's PG&E territory can receive equipment rebates, a detailed energy analysis, and the discounted installation of a variety of energy efficiency technologies through...

  10. Grupo San Jose | Open Energy Information

    Open Energy Info (EERE)

    navigation, search Name: Grupo San Jose Place: Madrid, Spain Zip: 28760 Sector: Solar, Wind energy Product: Madrid based company which develops several projects including wind and...

  11. NNMCAB Board Minutes: November 2000 San Ildefonso

    Broader source: Energy.gov [DOE]

    Minutes of the November 15, 2000 Board Meeting at San Ildefonso Pueblo Presentation CDC, ChemRisk Control Project on Historical Records, Tom Weidner

  12. San Marino: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Country Profile Name San Marino Population 32,576 GDP Unavailable Energy Consumption Quadrillion Btu 2-letter ISO code SM 3-letter ISO code SMR Numeric ISO code...

  13. PP-79 San Diego Gas & Electric Company | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    PDF icon PP-79 San Diego Gas & Electric Company More Documents & Publications PP-49-1 San Diego Gas & Electric Company PP-68-2 San Diego Gas & Electric Company PP-48-3 El Paso ...

  14. Alternative Fuels Data Center: San Diego Leads in Promoting EVs

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    San Diego Leads in Promoting EVs to someone by E-mail Share Alternative Fuels Data Center: San Diego Leads in Promoting EVs on Facebook Tweet about Alternative Fuels Data Center: San Diego Leads in Promoting EVs on Twitter Bookmark Alternative Fuels Data Center: San Diego Leads in Promoting EVs on Google Bookmark Alternative Fuels Data Center: San Diego Leads in Promoting EVs on Delicious Rank Alternative Fuels Data Center: San Diego Leads in Promoting EVs on Digg Find More places to share

  15. San

    Office of Environmental Management (EM)

    Management Sites | Department of Energy Sampling and Analysis Plan for U.S. Department of Energy Office of Legacy Management Sites Sampling and Analysis Plan for U.S. Department of Energy Office of Legacy Management Sites This document is revised often. Every attempt is made to ensure the posted version is the most current. Submit a request to LM@hq.doe.gov to obtain the most current version. Sampling and Analysis Plan for U.S. Department of Energy Office of Legacy Management Sites (18.69

  16. EERE Success Story-San Antonio Better Buildings Partners Recognized...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    In April, the Energy Department recognized Better Buildings Challenge San Antonio, Texas ... San Antonio Housing Authority (SAHA), learning how each organization is meeting their ...

  17. Santa Clara Valley Transportation Authority and San Mateo County...

    Office of Environmental Management (EM)

    Santa Clara Valley Transportation Authority and San Mateo County Transit District -- Fuel Cell Transit Buses: Evaluation Results Santa Clara Valley Transportation Authority and San ...

  18. Static Temperature Survey At San Andreas Region (Williams, Et...

    Open Energy Info (EERE)

    San Andreas Region (Williams, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Static Temperature Survey At San Andreas Region...

  19. San Diego Gas & Electric Co | Open Energy Information

    Open Energy Info (EERE)

    Company) Jump to: navigation, search Name: San Diego Gas & Electric Co Place: San Diego, California Service Territory: California Website: www.sdge.com Green Button Access:...

  20. San Francisco Bay Conservation and Development Commission | Open...

    Open Energy Info (EERE)

    Conservation and Development Commission Jump to: navigation, search Logo: San Francisco Bay Conservation and Development Commission Name: San Francisco Bay Conservation and...

  1. Reflection Survey At San Emidio Desert Area (DOE GTP) | Open...

    Open Energy Info (EERE)

    San Emidio Desert Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Reflection Survey At San Emidio Desert Area (DOE GTP)...

  2. Refraction Survey At San Emidio Desert Area (DOE GTP) | Open...

    Open Energy Info (EERE)

    San Emidio Desert Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Refraction Survey At San Emidio Desert Area (DOE GTP)...

  3. Thermal Gradient Holes At San Emidio Desert Area (DOE GTP) |...

    Open Energy Info (EERE)

    San Emidio Desert Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Thermal Gradient Holes At San Emidio Desert Area (DOE GTP)...

  4. Santa Clara Valley Transportation Authority and San Mateo County...

    Office of Environmental Management (EM)

    Santa Clara Valley Transportation Authority and San Mateo County Transit District Santa Clara Valley Transportation Authority and San Mateo County Transit District Fuel Cell ...

  5. San Miguel County, New Mexico: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    Energy Companies in San Miguel County, New Mexico Energy Concepts Corporation Nature s Accent Inc Places in San Miguel County, New Mexico Las Vegas, New Mexico Mosquero,...

  6. EIS-0516: Clean Path Energy Center Project; San Juan County,...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Path Energy Center Project; San Juan County, New Mexico EIS-0516: Clean Path Energy Center Project; San Juan County, New Mexico Summary DOE's Western Area Power Administration is ...

  7. University of California, San Diego (UCSD) Sky Imager Cloud Position...

    Office of Scientific and Technical Information (OSTI)

    University of California, San Diego (UCSD) Sky Imager Cloud Position Study Field Campaign Report Citation Details In-Document Search Title: University of California, San Diego ...

  8. Clean Cities: Alamo Area Clean Cities (San Antonio) coalition

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Alamo Area Clean Cities (San Antonio) Coalition The Alamo Area Clean Cities (San Antonio) coalition works with vehicle fleets, fuel providers, community leaders, and other...

  9. Community Response to Concentrating Solar Power in the San Luis...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    2010 Community Response to Concentrating Solar Power in the San Luis Valley October 9, ... 2010 Community Response to Concentrating Solar Power in the San Luis Valley October 9, ...

  10. San Diego, CA Liquefied Natural Gas Exports to Mexico (Dollars...

    U.S. Energy Information Administration (EIA) Indexed Site

    San Diego, CA Liquefied Natural Gas Exports to Mexico (Dollars per Thousand Cubic Feet) San Diego, CA Liquefied Natural Gas Exports to Mexico (Dollars per Thousand Cubic Feet) ...

  11. San Francisco, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Analytics Renewable Energy Action Project SCC Americas San Francisco Biodiesel San Francisco Community Power Scaled Solar SeaVolt Technologies formerly Sea Power Associates...

  12. Demonstration Home Program-San Diego | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Demonstration Home Program-San Diego Demonstration Home Program-San Diego Presents the California Center for Sustainable Energy's communications strategies for, challenges of, and ...

  13. Santa Clara Valley Transportation Authority and San Mateo County...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Santa Clara Valley Transportation Authority and San Mateo County Transit District Fuel ... and San Mateo County Transit District Fuel Cell Transit Buses: Evaluation Results ...

  14. Secretary Moniz Announces San Francisco as Site of Seventh Clean...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    San Francisco as Site of Seventh Clean Energy Ministerial Secretary Moniz Announces San ... PARIS - U.S. Energy Secretary Ernest Moniz and California Governor Edmund G. Brown ...

  15. Ground Magnetics At San Francisco Volcanic Field Area (Warpinski...

    Open Energy Info (EERE)

    San Francisco Volcanic Field Area (Warpinski, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Magnetics At San Francisco...

  16. San Francisco, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Act Smart Grid Projects in San Francisco, California Pacific Gas & Electric Company Smart Grid Demonstration Project Registered Research Institutions in San Francisco,...

  17. San Emido Geothermal Energy North Project | Open Energy Information

    Open Energy Info (EERE)

    Emido Geothermal Energy North Project Jump to: navigation, search NEPA Document Collection for: San Emido Geothermal Energy North Project EA at San Emidio Desert Geothermal Area...

  18. San Luis Bay Estates Pool & Spa Low Temperature Geothermal Facility...

    Open Energy Info (EERE)

    Estates Pool & Spa Low Temperature Geothermal Facility Jump to: navigation, search Name San Luis Bay Estates Pool & Spa Low Temperature Geothermal Facility Facility San Luis Bay...

  19. Isotopic Analysis At San Juan Volcanic Field Area (Larson & Jr...

    Open Energy Info (EERE)

    San Juan Volcanic Field Area (Larson & Jr, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis At San Juan Volcanic Field...

  20. San Diego Renewable Energy Society | Open Energy Information

    Open Energy Info (EERE)

    Society Jump to: navigation, search Name: San Diego Renewable Energy Society Address: P.O. Box 23490 Place: San Diego, California Zip: 92123 Region: Southern CA Area Website:...

  1. Exact Monte Carlo for molecules

    SciTech Connect (OSTI)

    Lester, W.A. Jr.; Reynolds, P.J.

    1985-03-01

    A brief summary of the fixed-node quantum Monte Carlo method is presented. Results obtained for binding energies, the classical barrier height for H + H2, and the singlet-triplet splitting in methylene are presented and discussed. 17 refs.

  2. Cogeneration fills San Jose needs

    SciTech Connect (OSTI)

    Kosla, L.A.; Orbach, H.S.; Shepherd, S.H.

    1985-07-01

    This paper describes the selection of a cogeneration system for San Jose State University and how that system fits the needs of the University. The cogenerator plant is capable of meeting the total campus steam and electric requirements. When the plant is down for routine maintenance, backup is supplied by the existing boiler plant and the local electric utility. Power generated above the University's needs is sold to the utility. The relatively new Cheng cycle system was chosen for the plant. It has more flexibility than a simple cycle and greater electrical and steaming capacity than for the equivalent combined cycle system. An analysis showed that under the University's loads and rate structure, the Cheng cycle could provide realistic sizing and good financial returns. The design of the Cheng system is described.

  3. Monte Carlo Simulations of APEX

    SciTech Connect (OSTI)

    Xu, G.

    1995-10-01

    Monte Carlo simulationsof the APEX apparatus, a spectrometer designed to meausre positron-electron pairs produced in heavy-ion collisions, carried out using GEANT are reported. The results of these simulations are compared with data from measurements of conversion electron, positron and part emitting sources as well as with the results of in-beam measurements of positrons and electrons. The overall description of the performance of the apparatus is excellent.

  4. San Bernardino County- Green Building Requirement

    Broader source: Energy.gov [DOE]

    In August 2007, the San Bernardino County Board of Supervisors approved a policy requiring that all new county buildings and major renovations be built to LEED Silver standards. The decision was...

  5. City of San Francisco- Residential Efficiency Rebates

    Broader source: Energy.gov [DOE]

    Single family homeowners in San Francisco's PG&Eterritory can receive Green Home Assessments, providing detailed reports showing energy loss, heat tests, and a list of improvements that will...

  6. San Diego Residential Development with Photovoltaics

    Broader source: Energy.gov [DOE]

    In this photograph, William Lyon Homes selected Open Energy’s SolarSave Roofing Tiles for its 77-unit housing development in Claremont in northern San Diego. The solar tiles will be used on the...

  7. City of San Diego- Sustainable Building Policy

    Office of Energy Efficiency and Renewable Energy (EERE)

    The City of San Diego’s Sustainable Building Policy is directed by Council Policy 900-14. The policy contains regulations regarding building measures, private-sector incentives, health and...

  8. ENERGY RESEARCH AND DEVELOPMENT ADMINISTRATION SAN FRANCISCO...

    Office of Legacy Management (LM)

    OR. I-s- - c" - ENERGY RESEARCH AND DEVELOPMENT ADMINISTRATION SAN FRANCISCO OPERATIONS OFFICE 1333 EIROAOWAY OAKLAND, CALIFORNIA 64612 f&t 12, 19-X E. K. Loop, Chief Process ...

  9. SAN ANTONIO SPURS DEMAND FOR ENERGY EFFICIENCY

    Broader source: Energy.gov [DOE]

    As a city that experiences seasonal spikes in energy demand and accompanying energy bills, San Antonio, Texas, wanted to help homeowners and businesses reduce their energy use and save on energy...

  10. San Jacinto Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    Status In Service Owner SeaWest Developer SeaWest Energy Purchaser Southern California Edison Co Location San Gorgonio CA Coordinates 33.9095, -116.734 Show Map Loading map......

  11. San Diego County- Green Building Program

    Broader source: Energy.gov [DOE]

    The County of San Diego has a Green Building Incentive Program designed to promote the use of resource efficient construction materials, water conservation and energy efficiency in new and...

  12. Alternative Fuels Data Center: Students Reduce Vehicle Idling in San

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Antonio, Texas Students Reduce Vehicle Idling in San Antonio, Texas to someone by E-mail Share Alternative Fuels Data Center: Students Reduce Vehicle Idling in San Antonio, Texas on Facebook Tweet about Alternative Fuels Data Center: Students Reduce Vehicle Idling in San Antonio, Texas on Twitter Bookmark Alternative Fuels Data Center: Students Reduce Vehicle Idling in San Antonio, Texas on Google Bookmark Alternative Fuels Data Center: Students Reduce Vehicle Idling in San Antonio, Texas on

  13. Department of Veterans Affairs Medical Center, San Francisco, California |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Department of Veterans Affairs Medical Center, San Francisco, California Department of Veterans Affairs Medical Center, San Francisco, California San Francisco VA Medical Center The San Francisco VA Medical Center is saving more than $500,000 and almost 3 million kWh every year through a retrofit financed by FEMP's Super ESPC Program. Overview The Veterans Affairs (VA) Medical Center in San Francisco is saving almost 3 million kilowatt-hours of electricity, more than

  14. Climate Action Champions: San Francisco, CA | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    San Francisco, CA Climate Action Champions: San Francisco, CA To meet the challenge of climate change, San Francisco is working with residents, businesses, community organizations, and state and federal agencies to create innovative programs and policies. To meet the challenge of climate change, San Francisco is working with residents, businesses, community organizations, and state and federal agencies to create innovative programs and policies. Climate Action Progress and Plans San Francisco

  15. Department of Veterans Affairs Medical Center, San Francisco, California |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Department of Veterans Affairs Medical Center, San Francisco, California Department of Veterans Affairs Medical Center, San Francisco, California San Francisco VA Medical Center The San Francisco VA Medical Center is saving more than $500,000 and almost 3 million kWh every year through a retrofit financed by FEMP's Super ESPC Program. Overview The Veterans Affairs (VA) Medical Center in San Francisco is saving almost 3 million kilowatt-hours of electricity, more than

  16. Energy Monte Carlo (EMCEE) | Open Energy Information

    Open Energy Info (EERE)

    with a specific set of distributions. Both programs run as spreadsheet workbooks in Microsoft Excel. EMCEE and Emc2 require Crystal Ball, a commercially available Monte Carlo...

  17. ARM - Carlos Sousa Interview (English Version)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    DeployementCarlos Sousa Interview (English Version) Azores Deployment AMF Home Graciosa Island Home Data Plots and Baseline Instruments Satellite Retrievals Experiment Planning...

  18. City of San Francisco- Solar Energy Incentive Program

    Broader source: Energy.gov [DOE]

    The City and County of San Francisco, through the San Francisco Public Utilities Commission (SFPUC), are providing incentives to residents, businesses and non-profits who install photovoltaic (PV)...

  19. City of San Marcos, Texas (Utility Company) | Open Energy Information

    Open Energy Info (EERE)

    search Name: City of San Marcos Place: Texas Phone Number: 512.393.8313 Website: www.ci.san-marcos.tx.us Twitter: @cityofsanmarcos Facebook: https:www.facebook.com...

  20. San Antonio's City Lights program | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    The Ronald McDonald houses in San Antonio serve as a home-away-from-home for families with children being treated at medical facilities in San Antonio. Pat Bivin, executive ...

  1. University of California San Diego | Open Energy Information

    Open Energy Info (EERE)

    University of California, San Diego Product: A University in California. References: University of California, San Diego1 This article is a stub. You can help OpenEI by expanding...

  2. Modeling-Computer Simulations At San Juan Volcanic Field Area...

    Open Energy Info (EERE)

    San Juan region, to further investigate both the thermal history of the region and the nature of the influence of the San Juan volcanic field thermal source on the thermal history...

  3. San Antonio Heights, California: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. San Antonio Heights is a census-designated place in San Bernardino County, California.1...

  4. EECBG Success Story: Bike Sharing in Texas: San Antonio Rolls...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Bike Sharing in Texas: San Antonio Rolls Out Program Aimed at Energy Efficiency and Public Health EECBG Success Story: Bike Sharing in Texas: San Antonio Rolls Out Program Aimed at ...

  5. 2009 National Electric Transmission Congestion Study - San Francisco...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Study San Francisco workshop.pdf (125.79 KB) Arizona Renewable Transmission Task Force BTA Response, submitted at 2009 Congestion Study San Francisco workshop.pdf (565.04 KB) ...

  6. Mora-San Miguel Elec Coop, Inc | Open Energy Information

    Open Energy Info (EERE)

    Mora-San Miguel Elec Coop, Inc Jump to: navigation, search Name: Mora-San Miguel Elec Coop, Inc Place: New Mexico Phone Number: 575-387-2205 (Mora) -- 505-757-6490 (Pecos) Website:...

  7. San Luis Obispo, California: Energy Resources | Open Energy Informatio...

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. San Luis Obispo is a city in San Luis Obispo County, California. It falls under...

  8. San Miguel, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    a stub. You can help OpenEI by expanding it. San Miguel is a census-designated place in San Luis Obispo County, California.1 References US Census Bureau 2005 Place to 2006...

  9. Tenth ARM Science Team Meeting Proceedings, San Antonio, Texas...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Tenth ARM Science Team Meeting Proceedings, San Antonio, Texas, March 13-17, 2000 2 ... Tenth ARM Science Team Meeting Proceedings, San Antonio, Texas, March 13-17, 2000 3 Figure ...

  10. San Francisco Bay Area Aerial Radiation Assessment Survey | National

    National Nuclear Security Administration (NNSA)

    Nuclear Security Administration | (NNSA) San Francisco Bay Area Aerial Radiation Assessment Survey January 27, 2016 (SAN JOSE and SAN FRANCISCO, California) - A helicopter may be seen flying at low altitudes over portions of the San Francisco Bay Area from January 29 through February 6, 2016. The purpose of the flyovers is to measure naturally occurring background radiation. Officials from the National Nuclear Security Administration (NNSA) announced that the radiation assessment will cover

  11. 2009 National Electric Transmission Congestion Study - San Francisco

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Workshop | Department of Energy San Francisco Workshop 2009 National Electric Transmission Congestion Study - San Francisco Workshop On June 11, 2008, DOE hosted a regional pre-study workshop in San Francisco, CA to receive input and suggestions concerning the 2009 National Electric Transmission Congestion Study. The agenda, full transcript, and documents submitted for consideration for the 2009 study are available below. 6-11-08 Congestion Workshop Agenda - San Francisco, CA.pdf (20.4 KB)

  12. San Martino Geothermal Power Station | Open Energy Information

    Open Energy Info (EERE)

    General Information Name San Martino Geothermal Power Station Sector Geothermal energy Location Information Location Tuscany, Italy Geothermal Resource Area Larderello...

  13. Monte%20Carlo.jpg | OSTI, US Dept of Energy Office of Scientific and

    Office of Scientific and Technical Information (OSTI)

    Technical Information Monte%20Carlo

  14. APR1400 LBLOCA uncertainty quantification by Monte Carlo method and comparison with Wilks' formula

    SciTech Connect (OSTI)

    Hwang, M.; Bae, S.; Chung, B. D.

    2012-07-01

    An analysis of the uncertainty quantification for the PWR LBLOCA by the Monte Carlo calculation has been performed and compared with the tolerance level determined by Wilks' formula. The uncertainty range and distribution of each input parameter associated with the LBLOCA accident were determined by the PIRT results from the BEMUSE project. The Monte-Carlo method shows that the 95. percentile PCT value can be obtained reliably with a 95% confidence level using the Wilks' formula. The extra margin by the Wilks' formula over the true 95. percentile PCT by the Monte-Carlo method was rather large. Even using the 3 rd order formula, the calculated value using the Wilks' formula is nearly 100 K over the true value. It is shown that, with the ever increasing computational capability, the Monte-Carlo method is accessible for the nuclear power plant safety analysis within a realistic time frame. (authors)

  15. San Antonio, Texas Data Dashboard | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Data Dashboard San Antonio, Texas Data Dashboard The data dashboard for San Antonio, Texas, a partner in the Better Buildings Neighborhood Program. San Antonio Data Dashboard (307.93 KB) More Documents & Publications Massachusetts -- SEP Data Dashboard Eagle County, Colorado Data Dashboard Cincinnati Data Dashboard

  16. San Antonio, Texas Summary of Reported Data | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Summary of Reported Data San Antonio, Texas Summary of Reported Data Summary of data reported by Better Buildings Neighborhood Program partner San Antonio, Texas. San Antonio, Texas Summary of Reported Data (2.17 MB) More Documents & Publications Los Angeles Summary of Reported Data Virginia -- SEP Summary of Reported Data University Park Summary of Reported Data

  17. San Antonio, Texas: Solar in Action (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2011-10-01

    This brochure provides an overview of the challenges and successes of San Antonio, TX, a 2008 Solar America City awardee, on the path toward becoming a solar-powered community. Accomplishments, case studies, key lessons learned, and local resource information are given.

  18. San Francisco, California: Solar in Action (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2011-10-01

    This brochure provides an overview of the challenges and successes of San Francisco, CA, a 2007 Solar America City awardee, on the path toward becoming a solar-powered community. Accomplishments, case studies, key lessons learned, and local resource information are given.

  19. San Diego, California: Solar in Action (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2011-10-01

    This brochure provides an overview of the challenges and successes of San Diego, CA, a 2007 Solar America City awardee, on the path toward becoming a solar-powered community. Accomplishments, case studies, key lessons learned, and local resource information are given.

  20. San Jose, California: Solar in Action (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2011-10-01

    This brochure provides an overview of the challenges and successes of San Jose, CA, a 2008 Solar America City awardee, on the path toward becoming a solar-powered community. Accomplishments, case studies, key lessons learned, and local resource information are given.

  1. Monte-Carlo particle dynamics in a variable specific impulse...

    Office of Scientific and Technical Information (OSTI)

    Monte-Carlo particle dynamics in a variable specific impulse magnetoplasma rocket Citation Details In-Document Search Title: Monte-Carlo particle dynamics in a variable specific ...

  2. Applications of FLUKA Monte Carlo Code for Nuclear and Accelerator...

    Office of Scientific and Technical Information (OSTI)

    Applications of FLUKA Monte Carlo Code for Nuclear and Accelerator Physics Citation Details In-Document Search Title: Applications of FLUKA Monte Carlo Code for Nuclear and ...

  3. Fundamentals of Monte Carlo (Technical Report) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Fundamentals of Monte Carlo Citation Details In-Document Search Title: Fundamentals of Monte Carlo Authors: Wollaber, Allan Benton 1 + Show Author Affiliations Los Alamos ...

  4. A hybrid Monte Carlo method for equilibrium equation of state...

    Office of Scientific and Technical Information (OSTI)

    MONTE CARLO SIMULATION METHODS Benchmark for perturbation theory methods NPT, NVT - single ... EXPLOSIVES; MIXTURES; MONTE CARLO METHOD; PERTURBATION THEORY; SHOCK WAVES; SIMULATION

  5. Optimized nested Markov chain Monte Carlo sampling: theory (Conference...

    Office of Scientific and Technical Information (OSTI)

    Optimized nested Markov chain Monte Carlo sampling: theory Citation Details In-Document Search Title: Optimized nested Markov chain Monte Carlo sampling: theory Metropolis Monte ...

  6. Radionuclide concentrations in fish collected from Jemez, Nambe, and San Ildefonso Tribal Lakes

    SciTech Connect (OSTI)

    Fresquez, P.R.; Armstrong, D.R.; Salazar, J.G.

    1995-02-01

    Radionuclide concentrations ({sup 90}Sr, {sup 137}Cs, {sup 238}Pu, {sup 239}Pu,and total uranium) were determined in fish collected from Jemez, Nambe, and San Ildefonso tribal lakes. With the exception of {sup 137}Cs, all other radionuclides were not significantly different in (stocked) rainbow trout collected from Jemez and Nambe as compared with game fish collected from Abiquiu, Heron, and El Vado Reservoirs. Although {sup 137}Cs levels in trout from Jemez (3.2 {times} 10{sup -2} pCi per dry gram) and Nambe (7.5 {times} 10{sup -2} pCi per dry gram) were significantly higher than {sup 137}Cs concentrations in fish from Abiquiu, Heron, and El Vado, they were still well below the regional statistical (worldwide fallout) reference level (i.e., < 28 {times} 10{sup -2} pCi per dry gram). Game and nongame fish collected from San Ildefonso contained higher and significantly higher concentrations of uranium, respectively, as compared with fish collected from Abiquiu, Heron, and El Vado. The higher uranium concentrations in fish from San Ildefonso as compared with fish from Abiquiu, Heron, and El Vado were attributed to the higher natural soil uranium contents in the area as compared with the geology of the area upstream of San Ildefonso. The effective (radiation) dose equivalent (EDE) from consuming 46 lb of game fish from Jemez, Nambe, and San Ildefonso lakes, after natural background has been subtracted, was 0.013 ({+-}0.002), 0.019 ({+-}0.012), and 0.017 ({+-}0.028) mrem/yr, respectively. Similarly, the EDE from consuming nongame fish from San Ildefonso was 0.0092 ({+-}0.0084) mrem/yr. The highest calculated dose, based on the mean + 2 standard deviation (95% confidence level), was 0.073 mrem/yr; this was <0.08% of the International Commission on Radiological Protection permissible dose limit for protecting members of the public.

  7. Monte Carlo Ion Transport Analysis Code.

    Energy Science and Technology Software Center (OSTI)

    2009-04-15

    Version: 00 TRIPOS is a versatile Monte Carlo ion transport analysis code. It has been applied to the treatment of both surface and bulk radiation effects. The media considered is composed of multilayer polyatomic materials.

  8. Improved Monte Carlo Renormalization Group Method

    DOE R&D Accomplishments [OSTI]

    Gupta, R.; Wilson, K. G.; Umrigar, C.

    1985-01-01

    An extensive program to analyze critical systems using an Improved Monte Carlo Renormalization Group Method (IMCRG) being undertaken at LANL and Cornell is described. Here we first briefly review the method and then list some of the topics being investigated.

  9. The San Joaquin Valley Westside Perspective

    SciTech Connect (OSTI)

    Quinn, Nigel W.T.; Linneman, J. Christopher; Tanji, Kenneth K.

    2006-03-27

    Salt management has been a challenge to westside farmerssince the rapid expansion of irrigated agriculture in the 1900 s. Thesoils in this area are naturally salt-affected having formed from marinesedimentary rocks rich in sea salts rendering the shallow groundwater,and drainage return flows discharging into the lower reaches of the SanJoaquin River, saline. Salinity problems are affected by the importedwater supply from Delta where the Sacramento and San Joaquin Riverscombine. Water quality objectives on salinity and boron have been inplace for decades to protect beneficial uses of the river. However it wasthe selenium-induced avian toxicity that occurred in the evaporationponds of Kesterson Reservoir (the terminal reservoir of a planned but notcompleted San Joaquin Basin Master Drain) that changed public attitudesabout agricultural drainage and initiated a steady stream ofenvironmental legislation directed at reducing non-point source pollutionof the River. Annual and monthly selenium load restrictions and salinityand boron Total Maximum Daily Loads (TMDLs) are the most recent of thesepolicy initiatives. Failure by both State and Federal water agencies toconstruct a Master Drain facility serving mostly west-side irrigatedagriculture has constrained these agencies to consider only In-Valleysolutions to ongoing drainage problems. For the Westlands subarea, whichhas no surface irrigation drainage outlet to the San Joaquin River,innovative drainage reuse systems such as the Integrated Farm DrainageManagement (IFDM) offer short- to medium-term solutions while morepermanent remedies to salt disposal are being investigated. Real-timesalinity management, which requires improved coordination of east-sidereservoir releases and west-side drainage, offers some relief toGrasslands Basin farmers and wetland managers - allowing greater salinityloading to the River than under a strict TMDL. However, currentregulation drives a policy that results in a moratorium on all

  10. Solar Policy Environment: San José

    Office of Energy Efficiency and Renewable Energy (EERE)

    The objective of this project is to support the City’s Green Vision, which is to ultimately ensure that 100% of the city’s electricity needs are met by renewable resources. Over a 24-moth period, the City will implement strategies to achieve a 15% increase in solar installations in San José, a 50% increased awareness and knowledge in the community, and more opportunities to purchase or invest in green power.

  11. San Bernardino National Wildlife Refuge Well 10

    SciTech Connect (OSTI)

    Ensminger, J.T.; Easterly, C.E.; Ketelle, R.H.; Quarles, H.; Wade, M.C.

    1999-12-01

    The U.S. Geological Survey (USGS), at the request of the U.S. Fish and Wildlife Service, evaluated the water production capacity of an artesian well in the San Bernardino National Wildlife Refuge, Arizona. Water from the well initially flows into a pond containing three federally threatened or endangered fish species, and water from this pond feeds an adjacent pond/wetland containing an endangered plant species.

  12. San Miguel Island, Channel Islands National Park, California | Department

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of Energy Miguel Island, Channel Islands National Park, California San Miguel Island, Channel Islands National Park, California Photo of Wind/Photovoltaic Power System at San Miguel Island San Miguel Island is one of five islands that make up Channel Islands National Park on the coast of southern California. The islands comprise 249,353 acres (100,910 hectares) of land and ocean that teems with terrestrial and marine life. The National Park Service (NPS) protects the pristine resources at

  13. Santa Clara Valley Transportation Authority and San Mateo County Transit

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    District | Department of Energy Santa Clara Valley Transportation Authority and San Mateo County Transit District Santa Clara Valley Transportation Authority and San Mateo County Transit District Fuel Cell Transit Buses: Preliminary Evaluation Results vta_prelim_eval_results.pdf (1.04 MB) More Documents & Publications Santa Clara Valley Transportation Authority and San Mateo County Transit District -- Fuel Cell Transit Buses: Evaluation Results VTA, SamTrans Look into Future with Bus

  14. EIS-0416: Ivanpah Solar Electric Generating System in San Bernardino

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    County, CA | Department of Energy 6: Ivanpah Solar Electric Generating System in San Bernardino County, CA EIS-0416: Ivanpah Solar Electric Generating System in San Bernardino County, CA Documents Available for Download October 22, 2010 EIS-0416: EPA Notice of Availability of the Final Environmental Impact Statement Ivanpah Solar Electric Generating System (07-AFC-5) Project, Proposal to Construct a 400-m Megawatt Concentrated Solar Power Tower, Thermal-Electric Power Plant, San Bernardino

  15. Better Buildings Program San Jose -- Serving Moderate Income Residents |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Program San Jose -- Serving Moderate Income Residents Better Buildings Program San Jose -- Serving Moderate Income Residents Provides an overview of the program components and goals, including the whole neighborhood approach pilot which aims to streamline participant, contractor, and administration processes for neighborhood retrofitting in order to reduce high transaction costs created by the current one-off delivery model. San Jose Program Presentation (3.53 MB) More

  16. Energy Department Announces Climate Action Champion, City of San Francisco,

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Embracing Hydrogen and Fuel Cell Technologies | Department of Energy Climate Action Champion, City of San Francisco, Embracing Hydrogen and Fuel Cell Technologies Energy Department Announces Climate Action Champion, City of San Francisco, Embracing Hydrogen and Fuel Cell Technologies May 20, 2016 - 1:00pm Addthis Today, the Energy Department's (DOE) Office of Energy Efficiency and Renewable Energy (EERE) announced the city of San Francisco has been selected as the first Climate Action

  17. Energy Department Recognizes San Antonio Area Partners for Advancing Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Efficiency | Department of Energy San Antonio Area Partners for Advancing Energy Efficiency Energy Department Recognizes San Antonio Area Partners for Advancing Energy Efficiency April 15, 2015 - 10:36am Addthis NEWS MEDIA CONTACT (202) 586-4940 As part of the Administration's effort to cut energy waste in the nation's buildings, the Energy Department will recognize San Antonio area partners today for their leadership in advancing energy efficiency. Through the Better Buildings Challenge,

  18. East San Gabriel, California: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    San Gabriel, California: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 34.11985, -118.079696 Show Map Loading map... "minzoom":false,"mapping...

  19. Environmental Innovation Center Solar Site Evaluation: San José...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Information Resources Environmental Innovation Center Solar Site Evaluation: San Jos Environmental ... Sandia National Labs, and New Mexico State University, conducted the ...

  20. Texas: City of San Antonio Demonstrates Value of Greater Investments...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of Greater Investments in Clean Energy Texas: City of San Antonio Demonstrates Value ... in efficient and renewable energy and water conservation can create jobs and stimulate ...

  1. EECBG Success Story: San Antonio Small Businesses "Seeing the...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    As part of San Antonio's "Mission Verde" initiative, the city launched the City Lights Small Business Lighting Retrofit Program using Recovery Act funding through the Energy ...

  2. San Emidio II Geothermal Project | Open Energy Information

    Open Energy Info (EERE)

    II Geothermal Project Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Development Project: San Emidio II Geothermal Project Project Location Information Coordinates...

  3. Clean Cities: San Diego Regional Clean Cities coalition

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of Kevin Wood Kevin Wood is an associate program manager for transportation at the California Center for Sustainable Energy. He joined the San Diego Regional Clean Cities...

  4. Conversion Technology and the San Jose Zero Waste Initiative

    Broader source: Energy.gov [DOE]

    Presented by Michele Young, Organics Manager for the City of San Jose, California, at the April 16, 2013, Community-Scale Anaerobic Digesters CommRE Webinar.

  5. San Marcos, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    district.12 Registered Energy Companies in San Marcos, California American Lithium Energy Corp References US Census Bureau Incorporated place and minor civil...

  6. Calif--San Joaquin Basin onsh Shale Proved Reserves (Billion...

    U.S. Energy Information Administration (EIA) Indexed Site

    onsh Shale Proved Reserves (Billion Cubic Feet) Calif--San Joaquin Basin onsh Shale Proved Reserves (Billion Cubic Feet) No Data Available For This Series - No Data Reported; --...

  7. San Diego Gas & Electric Co | Open Energy Information

    Open Energy Info (EERE)

    San Diego, California Service Territory: California Website: www.sdge.com Green Button Access: Implemented Green Button Landing Page: www.sdge.comcustomer-ser Green Button...

  8. San Francisco, California: Solar in Action (Brochure), Solar...

    Broader source: Energy.gov (indexed) [DOE]

    Accomplishments, case studies, key lessons learned, and local resource information are given. 50203sanfrancisco.pdf (2.15 MB) More Documents & Publications San Diego, California: ...

  9. San Jose, California, Partners With Established Community Groups...

    Energy Savers [EERE]

    California, Partners With Established Community Groups to Win Over Homeowners San Jose, California, Partners With Established Community Groups to Win Over Homeowners A photo of a ...

  10. University of California, San Diego (Scripps) | Open Energy Informatio...

    Open Energy Info (EERE)

    (Scripps) Jump to: navigation, search Hydro | Hydrodynamic Testing Facilities Name University of California, San Diego (Scripps) Address Scripps Institution of Oceanography, 8825...

  11. San Clemente Island, Channel Islands National Park, California...

    Energy Savers [EERE]

    San Clemente Island, Channel Islands National Park, California Photo of Wind Turbine on ... Management Program (FEMP). A third turbine was installed in 1999, allowing the wind ...

  12. EIS-0416: Ivanpah Solar Electric Generating System in San Bernardino...

    Energy Savers [EERE]

    Ivanpah Solar Electric Generating System (07-AFC-5) Project, Proposal to Construct a 400-m Megawatt Concentrated Solar Power Tower, Thermal-Electric Power Plant, San Bernardino ...

  13. San Bernardino County, California: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    2 Solar Power Plant Places in San Bernardino County, California Adelanto, California Apple Valley, California Barstow, California Big Bear City, California Big Bear Lake,...

  14. San Andreas Split Geothermal Region | Open Energy Information

    Open Energy Info (EERE)

    ENERGYGeothermal Home San Andreas Split Geothermal Region Details Areas (0) Power Plants (0) Projects (0) Techniques (0) Assessment of Moderate- and High-Temperature...

  15. San Joaquin, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    it. San Joaquin is a city in Fresno County, California. It falls under California's 20th congressional district.12 References US Census Bureau Incorporated place and...

  16. Geothermal Literature Review At San Francisco Volcanic Field...

    Open Energy Info (EERE)

    navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal Literature Review At San Francisco Volcanic Field Area (Morgan, Et Al., 2003) Exploration...

  17. Pueblo De San Ildefonso Department of Environmental and Cultural...

    Energy Savers [EERE]

    Environmental and Cultural Preservation Program Overview 2015 Topic: Director Raymond Martinez, and Governor Mountain, provided the membership with an update on the Pueblo de San...

  18. EECBG Success Story: San Antonio Small Businesses "Seeing the...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Efficiency and Public Health KBK to the Trade San Antonio Small Businesses "Seeing the Light" with Energy Upgrades Weatherization & Intergovernmental Programs Office Home About...

  19. San Ramon, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    congressional district.12 Registered Energy Companies in San Ramon, California BEW Engineering Enpower Corp Third Planet Windpower LLC References US Census Bureau...

  20. San Francisco Mayor's Solar Founders' Circle Workshop for Assessors...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Location San Francisco, California United States See map: Google Maps Date January 2009 Topic Facilities & Buildings Systems Performance Manufacturing, Workforce & Training ...

  1. T-588: HP Virtual SAN Appliance Stack Overflow

    Office of Energy Efficiency and Renewable Energy (EERE)

    A vulnerability has been reported in HP StorageWorks P4000 Virtual SAN Appliance Software, which can be exploited by malicious people to compromise a vulnerable system.

  2. Data Acquisition-Manipulation At San Francisco Volcanic Field...

    Open Energy Info (EERE)

    Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Data Acquisition-Manipulation At San Francisco Volcanic Field Area (Warpinski, Et Al., 2004)...

  3. Rock Sampling At San Francisco Volcanic Field Area (Warpinski...

    Open Energy Info (EERE)

    Francisco Volcanic Field Area (Warpinski, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Rock Sampling At San Francisco Volcanic...

  4. Field Mapping At San Francisco Volcanic Field Area (Warpinski...

    Open Energy Info (EERE)

    Francisco Volcanic Field Area (Warpinski, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At San Francisco Volcanic...

  5. Ground Gravity Survey At San Francisco Volcanic Field Area (Warpinski...

    Open Energy Info (EERE)

    Francisco Volcanic Field Area (Warpinski, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At San Francisco...

  6. San Antonio, Texas Summary of Reported Data | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    San Antonio, Texas Summary of Reported Data (2.17 MB) More Documents & Publications Virginia -- SEP Summary of Reported Data Los Angeles Summary of Reported Data University Park ...

  7. San Diego Hero Alliance: Community-Based Social Marketing Pilot...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Presents an overview of the California Center for Sustainable Energy's community-based social marketing strategies to promote home energy upgrades to San Diego military and veteran ...

  8. San Gorgonio Farms Wind Farm II | Open Energy Information

    Open Energy Info (EERE)

    Commercial Scale Wind Facility Status In Service Energy Purchaser Southern California Edison Co Location San Gorgonio CA Coordinates 33.9095, -116.734 Show Map Loading map......

  9. San Gorgonio Farms Wind Farm I | Open Energy Information

    Open Energy Info (EERE)

    Commercial Scale Wind Facility Status In Service Energy Purchaser Southern California Edison Co Location San Gorgonio CA Coordinates 33.9095, -116.734 Show Map Loading map......

  10. San Gorgonio Farms Wind Farm III | Open Energy Information

    Open Energy Info (EERE)

    Commercial Scale Wind Facility Status In Service Energy Purchaser Southern California Edison Co Location San Gorgonio CA Coordinates 33.9095, -116.734 Show Map Loading map......

  11. San Miguel Power Association- Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    San Miguel Power Association (SMPA) offers a variety of rebates to customers for the purchase and installation of energy efficient equipment and appliances. Both residential and commercial...

  12. San Isabel Electric Association- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    San Isabel Electric Association (SIEA) provides incentives for its residential customers to install energy efficient equipment. Rebates are available for certain water heaters, washers, dryers,...

  13. San Antonio, Texas: Solar in Action (Brochure), Solar America...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Antonio, Texas: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE) San Antonio, Texas: Solar in Action (Brochure), Solar America Cities, ...

  14. Better Buildings Program San Jose -- Serving Moderate Income...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Better Buildings Program San Jose -- Serving Moderate Income Residents Provides an overview of the program components and goals, including the whole neighborhood approach pilot ...

  15. San Jose Energia y Medio Ambiente | Open Energy Information

    Open Energy Info (EERE)

    Energia y Medio Ambiente Jump to: navigation, search Name: San Jose Energia y Medio Ambiente Place: Madrid, Spain Zip: 28760 Sector: Renewable Energy Product: Madrid based...

  16. Landslide oil field, San Joaquin Valley, California

    SciTech Connect (OSTI)

    Collins, B.P.; March, K.A.; Caballero, J.S.; Stolle, J.M.

    1988-03-01

    The Landslide field, located at the southern margin of the San Joaquin basin, was discovered in 1985 by a partnership headed by Channel Exploration Company, on a farm out from Tenneco Oil Company. Initial production from the Tenneco San Emidio 63X-30 was 2064 BOPD, making landslide one of the largest onshore discoveries in California during the past decade. Current production is 7100 BOPD from a sandstone reservoir at 12,500 ft. Fifteen wells have been drilled in the field, six of which are water injectors. Production from the Landslide field occurs from a series of upper Miocene Stevens turbidite sandstones that lie obliquely across an east-plunging structural nose. These turbidite sandstones were deposited as channel-fill sequences within a narrowly bounded levied channel complex. Both the Landslide field and the larger Yowlumne field, located 3 mi to the northwest, comprise a single channel-fan depositional system that developed in the restricted deep-water portion of the San Joaquin basin. Information from the open-hole logs, three-dimensional surveys, vertical seismic profiles, repeat formation tester data, cores, and pressure buildup tests allowed continuous drilling from the initial discovery to the final waterflood injector, without a single dry hole. In addition, the successful application of three-dimensional seismic data in the Landslide development program has helped correctly image channel-fan anomalies in the southern Maricopa basin, where data quality and severe velocity problems have hampered previous efforts. New exploration targets are currently being evaluated on the acreage surrounding the Landslide discovery and should lead to an interesting new round of drilling activity in the Maricopa basin.

  17. Existing Whole-House Solutions Case Study: Build San Antonio Green, San Antonio, Texas

    SciTech Connect (OSTI)

    none,

    2013-06-01

    PNNL, FSEC, and CalcsPlus provided technical assistance to Build San Antonio Green on three deep energy retrofits. For this gut rehab they replaced the old roof with a steeper roof and replaced drywall while adding insulation, new HVAC, sealed ducts, transfer grilles, outside air run-time ventilation, new lighting and water heater.

  18. PP-68-2 San Diego Gas & Electric Company | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    PDF icon PP-68-2 San Diego Gas & Electric Company More Documents & Publications PP-49-1 San Diego Gas & Electric Company PP-79 San Diego Gas & Electric Company PP-48-3 El Paso ...

  19. PP-49-1 San Diego Gas & Electric Company | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    PDF icon PP-49-1 San Diego Gas & Electric Company More Documents & Publications PP-79 San Diego Gas & Electric Company PP-68-2 San Diego Gas & Electric Company PP-48-3 El Paso ...

  20. QER Public Meeting in San Francisco: The Water-Energy Nexus ...

    Energy Savers [EERE]

    QER Public Meeting in San Francisco: The Water-Energy Nexus QER Public Meeting in San Francisco: The Water-Energy Nexus June 19, 2014 1:00PM to 9:00PM PDT San Francisco City Hall ...

  1. DOE Zero Energy Ready Home Case Study: One Sky Homes, San Jose...

    Energy Savers [EERE]

    One Sky Homes, San Jose, CA DOE Zero Energy Ready Home Case Study: One Sky Homes, San Jose, CA DOE Zero Energy Ready Home Case Study: One Sky Homes, San Jose, CA Case study of a...

  2. DOE Zero Energy Ready Home Case Study: One Sky Homes, San Jose...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    One Sky Homes, San Jose, CA DOE Zero Energy Ready Home Case Study: One Sky Homes, San Jose, CA DOE Zero Energy Ready Home Case Study: One Sky Homes, San Jose, CA Case study of a ...

  3. Wind resource assessment: San Nicolas Island, California

    SciTech Connect (OSTI)

    McKenna, E.; Olsen, T.L.

    1996-01-01

    San Nicolas Island (SNI) is the site of the Navy Range Instrumentation Test Site which relies on an isolated diesel-powered grid for its energy needs. The island is located in the Pacific Ocean 85 miles southwest of Los Angeles, California and 65 miles south of the Naval Air Weapons Station (NAWS), Point Mugu, California. SNI is situated on the continental shelf at latitude N33{degree}14` and longitude W119{degree}27`. It is approximately 9 miles long and 3.6 miles wide and encompasses an area of 13,370 acres of land owned by the Navy in fee title. Winds on San Nicolas are prevailingly northwest and are strong most of the year. The average wind speed is 7.2 m/s (14 knots) and seasonal variation is small. The windiest months, March through July, have wind speeds averaging 8.2 m/s (16 knots). The least windy months, August through February, have wind speeds averaging 6.2 m/s (12 knots).

  4. Environmental Innovation Center Solar Site Evaluation: San José

    Broader source: Energy.gov [DOE]

    This report describes the findings of a solar photovoltaic (PV) site evaluation conducted at the San Jose Environmental Innovation Center (EIC) in the City of San Jose, California. This evaluation was conducted as part of a larger study to assess solar potential at multiple public facilities within the City.

  5. Stepout-Deepening Wells At San Emidio Desert Area (DOE GTP) ...

    Open Energy Info (EERE)

    search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Stepout-Deepening Wells At San Emidio Desert Area (DOE GTP) Exploration Activity Details Location San Emidio...

  6. EERE Success Story-Texas: City of San Antonio Demonstrates Value...

    Office of Environmental Management (EM)

    Verde Center, installing a solar photovoltaic system at the San Antonio ... Addthis Related Articles The new photovoltaic system at the San Antonio International ...

  7. Ground Magnetics At San Emidio Desert Area (DOE GTP) | Open Energy...

    Open Energy Info (EERE)

    Magnetics At San Emidio Desert Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Magnetics At San Emidio Desert Area (DOE...

  8. Flow Test At San Emidio Desert Area (DOE GTP) | Open Energy Informatio...

    Open Energy Info (EERE)

    Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At San Emidio Desert Area (DOE GTP) Exploration Activity Details Location San Emidio...

  9. San Joaquin-Tulare Conjunctive Use Model: Detailed model description

    SciTech Connect (OSTI)

    Quinn, N.W.T.

    1992-03-01

    The San Joaquin - Tulare Conjunctive Use Model (SANTUCM) was originally developed for the San Joaquin Valley Drainage Program to evaluate possible scenarios for long-term management of drainage and drainage - related problems in the western San Joaquin Valley of California. A unique aspect of this model is its coupling of a surface water delivery and reservoir operations model with a regional groundwater model. The model also performs salinity balances along the tributaries and along the main stem of the San Joaquin River to allow assessment of compliance with State Water Resources Control Board water quality objectives for the San Joaquin River. This document is a detailed description of the various subroutines, variables and parameters used in the model.

  10. Beneficial Reuse of San Ardo Produced Water

    SciTech Connect (OSTI)

    Robert A. Liske

    2006-07-31

    This DOE funded study was performed to evaluate the potential for treatment and beneficial reuse of produced water from the San Ardo oilfield in Monterey County, CA. The potential benefits of a successful full-scale implementation of this project include improvements in oil production efficiency and additional recoverable oil reserves as well as the addition of a new reclaimed water resource. The overall project was conducted in two Phases. Phase I identified and evaluated potential end uses for the treated produced water, established treated water quality objectives, reviewed regulations related to treatment, transport, storage and use of the treated produced water, and investigated various water treatment technology options. Phase II involved the construction and operation of a small-scale water treatment pilot facility to evaluate the process's performance on produced water from the San Ardo oilfield. Cost estimates for a potential full-scale facility were also developed. Potential end uses identified for the treated water include (1) agricultural use near the oilfield, (2) use by Monterey County Water Resources Agency (MCWRA) for the Salinas Valley Water Project or Castroville Seawater Intrusion Project, (3) industrial or power plant use in King City, and (4) use for wetlands creation in the Salinas Basin. All of these uses were found to have major obstacles that prevent full-scale implementation. An additional option for potential reuse of the treated produced water was subsequently identified. That option involves using the treated produced water to recharge groundwater in the vicinity of the oil field. The recharge option may avoid the limitations that the other reuse options face. The water treatment pilot process utilized: (1) warm precipitation softening to remove hardness and silica, (2) evaporative cooling to meet downstream temperature limitations and facilitate removal of ammonia, and (3) reverse osmosis (RO) for removal of dissolved salts, boron, and

  11. Solar energy system performance evaluation seasonal report for Elcam San Diego, San Diego, California

    SciTech Connect (OSTI)

    Not Available

    1980-05-01

    The solar energy system, Elcam San Diego, was designed to supply domestic hot water heating for a single family residence located in Encinitas, California. The contents of this document have been divided into System Description, Performance Assessment, Operating Energy, Energy Savings, Maintenance and Summary and Conclusions. The system is a Sunspot two tank cascade type, where solar energy is supplied to either a 66 gallon preheat tank (solar storage) or a 40 gallon domestic hot water tank. Water is pumped directly from one of the two tanks, through the 65 square feet collector array and back into the same tank. Freeze protection is provided by automatically circulating hot water from the hot water tank through the collectors and exposed plumbing when freezing conditions exist. Auxiliary energy is supplied by natural gas. The Elcam San Diego solar energy system has three modes of operation.

  12. Accuracy of Monte Carlo simulations compared to in-vivo MDCT dosimetry

    SciTech Connect (OSTI)

    Bostani, Maryam McMillan, Kyle; Cagnon, Chris H.; McNitt-Gray, Michael F.; Mueller, Jonathon W.; Cody, Dianna D.; DeMarco, John J.

    2015-02-15

    Purpose: The purpose of this study was to assess the accuracy of a Monte Carlo simulation-based method for estimating radiation dose from multidetector computed tomography (MDCT) by comparing simulated doses in ten patients to in-vivo dose measurements. Methods: MD Anderson Cancer Center Institutional Review Board approved the acquisition of in-vivo rectal dose measurements in a pilot study of ten patients undergoing virtual colonoscopy. The dose measurements were obtained by affixing TLD capsules to the inner lumen of rectal catheters. Voxelized patient models were generated from the MDCT images of the ten patients, and the dose to the TLD for all exposures was estimated using Monte Carlo based simulations. The Monte Carlo simulation results were compared to the in-vivo dose measurements to determine accuracy. Results: The calculated mean percent difference between TLD measurements and Monte Carlo simulations was −4.9% with standard deviation of 8.7% and a range of −22.7% to 5.7%. Conclusions: The results of this study demonstrate very good agreement between simulated and measured doses in-vivo. Taken together with previous validation efforts, this work demonstrates that the Monte Carlo simulation methods can provide accurate estimates of radiation dose in patients undergoing CT examinations.

  13. Quantum Monte Carlo by message passing

    SciTech Connect (OSTI)

    Bonca, J.; Gubernatis, J.E.

    1993-01-01

    We summarize results of quantum Monte Carlo simulations of the degenerate single-impurity Anderson model using the impurity algorithm of Hirsch and Fye. Using methods of Bayesian statistical inference, coupled with the principle of maximum entropy, we extracted the single-particle spectral density from the imaginary-time Green's function. The variations of resulting spectral densities with model parameters agree qualitatively with the spectral densities predicted by NCA calculations. All the simulations were performed on a cluster of 16 IBM R6000/560 workstations under the control of the message-passing software PVM. We described the trivial parallelization of our quantum Monte Carlo code both for the cluster and the CM-5 computer. Other issues for effective parallelization of the impurity algorithm are also discussed.

  14. Quantum Monte Carlo by message passing

    SciTech Connect (OSTI)

    Bonca, J.; Gubernatis, J.E.

    1993-05-01

    We summarize results of quantum Monte Carlo simulations of the degenerate single-impurity Anderson model using the impurity algorithm of Hirsch and Fye. Using methods of Bayesian statistical inference, coupled with the principle of maximum entropy, we extracted the single-particle spectral density from the imaginary-time Green`s function. The variations of resulting spectral densities with model parameters agree qualitatively with the spectral densities predicted by NCA calculations. All the simulations were performed on a cluster of 16 IBM R6000/560 workstations under the control of the message-passing software PVM. We described the trivial parallelization of our quantum Monte Carlo code both for the cluster and the CM-5 computer. Other issues for effective parallelization of the impurity algorithm are also discussed.

  15. San Juan Montana Thrust Belt WY Thrust Belt Black Warrior

    U.S. Energy Information Administration (EIA) Indexed Site

    San Juan Montana Thrust Belt WY Thrust Belt Black Warrior Paradox - San Juan NW (2) Uinta- Piceance Paradox - San Juan SE (2) Florida Peninsula Appalachian- NY (1) Appalachian OH-PA (2) Appalachian Eastern PA (3) Appalachian Southern OH (4) Appalachian Eastern WV (5) Appalachian WV-VA (6) Appalachian TN-KY (7) Piceance Greater Green River Eastern OR-WA Ventura Williston Williston NE (2) Williston NW (1) Williston South (3) Eastern Great Basin Ventura West, Central, East Eastern OR-WA Eastern

  16. 229th Electrochemical Society (ECS) Meeting (San Diego, CA) - JCAP

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    229th Electrochemical Society (ECS) Meeting (San Diego, CA) 229th Electrochemical Society (ECS) Meeting (San Diego, CA) Sun, May 29, 2016 12:00pm 12:00 Thu, Jun 2, 2016 1:00pm 13:00 San Diego, CA USA Joel A. Haber, "Development of Solar Fuels Photoanodes through Combinatorial Integration of Ni-La-Co-Ce Oxide and Ni-Fe-Co-Ce Oxide Catalysts on BiVO4" The development of an efficient photoanode remains the primary materials challenge in the establishment of a scalable technology for solar

  17. San Antonio_Jan1996_ExecSummary.pdf

    Office of Environmental Management (EM)

    San Antonio's City Lights program San Antonio's City Lights program Addthis KBK to the Trade 1 of 5 KBK to the Trade Thanks to the City Lights program, this design shop is saving an estimated 25,500 kilowatt-hours and $2,000 on electricity bills each year. | Photo Credit: City of San Antonio Date taken: 2011-05-24 15:06 Gallista Gallery 2 of 5 Gallista Gallery Joe Lopez, artist and owner of the Gallista Gallery, received energy and money-saving lights through the City Lights program. "We

  18. Carlo Rovelli Aix-Marseille University

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    possible quantum gravity observation: cosmic rays from Planck stars, or black-to-white hole decay Carlo Rovelli Aix-Marseille University June 22, 2016 4:00 p.m. - Wilson Hall, One West The possibility of observing quantum gravitational phenomena, viewed as remote until not long ago, is increasingly considered to be plausible. Here I focus of a potentially observable phenomenon: black holes are classically stable, but can decay via a quantum gravitational tunneling akin to standard nuclear decay.

  19. Radionuclide concentrations in soils and produce from Cochiti, Jemez, Taos, and San Ildefonso Pueblo Gardens

    SciTech Connect (OSTI)

    Fresquez, P.R.; Armstrong, D.R.; Salazar, J.G.

    1995-05-01

    Radionuclide ({sup 3}H, {sup 90}Sr, {sup 137}Cs, {sup 238}Pu, {sup 239}Pu, and total uranium) concentrations were determined in soils and produce collected from Cochiti, Jemez, Taos, and San Ildefonso Pueblo gardens. All radionuclides in soils from Pueblo areas were within or just above regional statistical (natural and/or worldwide fallout) reference levels. Similarily, the average levels of radionuclides in produce collected from Cochiti, Jemez, Taos, and San Ildefonso Pueblo gardens were not significantly different in produce collected from regional (background) locations. The effective (radiation) dose equivalent from consuming 352 lb of produce from Cochiti, Jemez, Taos, and San Ildefonso, after natural background has been subtracted, was 0.036 ({+-}0.016), 0.072 ({+-}0.051), 0.012 ({+-}0.027), and 0.110 ({+-}0.102) mrem/yr, respectively. The highest calculated dose, based on the mean + 2 std dev (95% confidence level), was 0.314 mrem/yr; this was <0.4% of the International Commission on Radiological Protection permissible dose limit for protecting members of the public.

  20. San Patricio County, Texas: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    A. Places in San Patricio County, Texas Aransas Pass, Texas Corpus Christi, Texas Del Sol-Loma Linda, Texas Doyle, Texas Edgewater-Paisano, Texas Edroy, Texas Falman-County...

  1. City of San Jose- Private Sector Green Building Policy

    Broader source: Energy.gov [DOE]

    In October 2008, the City of San Jose enacted the Private Sector Green Building Policy (Policy No. 6-32). The policy was adopted in Ordinance No. 28622 in June, 2009. All new buildings must meet...

  2. San Diego Gas and Electric | OpenEI Community

    Open Energy Info (EERE)

    Graham7781(2017) Super contributor 16 January, 2013 - 11:09 SDG&E Customers Can Connect Home Area Network Devices With Smart Meters OpenEI San Diego Gas and Electric Smart Meters...

  3. San Ildefonso Pueblo, New Mexico: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    help OpenEI by expanding it. San Ildefonso Pueblo is a census-designated place in Santa Fe County, New Mexico.1 References US Census Bureau 2005 Place to 2006 CBSA Retrieved...

  4. San Marino, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. San Marino is a city in Los Angeles County, California. It falls under California's 26th...

  5. City of San Saba, Texas (Utility Company) | Open Energy Information

    Open Energy Info (EERE)

    www.facebook.compagesSan-Saba-Texas-The-Pecan-Capital-of-The-World111396492233674?refhl Outage Hotline: 325.372.5144 or 325.372.5551 References: EIA Form EIA-861 Final Data...

  6. SanRex Europe GmbH | Open Energy Information

    Open Energy Info (EERE)

    electronic components manufacturer. The firm produces solar PV junction boxes and inverters. References: SanRex Europe GmbH1 This article is a stub. You can help OpenEI by...

  7. MPO SAN ANTONIO - BEXAR COUNTY METROPOLITAN PLANNING ORGANIZATION

    Energy Savers [EERE]

    ... agricultural tractors, combines, commercial airports, point sources, and heavy duty truck idling 2012 With Eagle Ford Emission Inventory WRF v3.2 CAMx 5.40 Local 2012 San ...

  8. San Elizario, Texas: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    You can help OpenEI by expanding it. San Elizario is a census-designated place in El Paso County, Texas.1 References US Census Bureau 2005 Place to 2006 CBSA Retrieved...

  9. City of San Augustine, Texas (Utility Company) | Open Energy...

    Open Energy Info (EERE)

    Texas Phone Number: 936-275-2121 or 936-275-2314 Website: www.co.san-augustine.tx.uscit Outage Hotline: 936-275-2121 or 936-275-2314 References: EIA Form EIA-861 Final Data...

  10. City of San Diego Environmental Services Department | Open Energy...

    Open Energy Info (EERE)

    City of San Diego's environmental services department. It is a power purchaser of electricity generated by a 0.9MW solar PV array located at its Alvarado water treatment...

  11. San Antonio Better Buildings Partners Recognized for Advancing Energy Efficiency

    Broader source: Energy.gov [DOE]

    In April, the Energy Department recognized Better Buildings Challenge San Antonio, Texas area partners. Dr. Kathleen Hogan, Deputy Assistant Secretary for Energy Efficiency met with Macys and the...

  12. City of San Diego- Sustainable Building Expedited Permit Program

    Broader source: Energy.gov [DOE]

    In 2002, the City of San Diego passed a Resolution R-298001, which amended the Sustainable Building Policy to allow for expedited permitting for sustainable buildings. Sustainable buildings are...

  13. San Clemente Island Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    Sector Wind energy Facility Type Community Wind Facility Status In Service Owner U.S. Navy Developer Pacific Industrial Electric Energy Purchaser U.S. Navy Location San Clemente...

  14. City of San Antonio, Texas (Utility Company) | Open Energy Information

    Open Energy Info (EERE)

    to: navigation, search Name: San Antonio City of Place: Texas Phone Number: (210) 353-4357 or (800) 870-1006 Website: www.cpsenergy.comen.html Twitter: @cpsenergy Facebook:...

  15. Geothermal resources of the Upper San Luis and Arkansas valleys...

    Open Energy Info (EERE)

    resources of the Upper San Luis and Arkansas valleys, Colorado Authors R.H. Pearl and J.K. Barrett Editors Epis, R.C. & Weimer and R.I. Published Colorado School of Mines:...

  16. PROJECT PROFILE: City and County of San Francisco Department...

    Broader source: Energy.gov (indexed) [DOE]

    By adding solar to this effort, San Francisco will increase neighborhood resilience and mitigate the effects of power outages during a disaster. The team aims to develop a report ...

  17. San Leandro, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    This article is a stub. You can help OpenEI by expanding it. San Leandro is a city in Alameda County, California. It falls under California's 13th congressional district.12...

  18. San Lorenzo, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    stub. You can help OpenEI by expanding it. San Lorenzo is a census-designated place in Alameda County, California.1 References US Census Bureau 2005 Place to 2006 CBSA...

  19. San Luis, Arizona: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. San Luis is a city in Yuma County, Arizona. It falls under Arizona's 7th congressional...

  20. San Luis Rey, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Rey, California: Energy Resources (Redirected from San Luis Rey, CA) Jump to: navigation, search GeoNames ID 5392350 Coordinates 33.23198, -117.32365 Show Map Loading map......

  1. San Luis Obispo County, California: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. San Luis Obispo County is a county in California. Its FIPS County Code is 079. It is...

  2. San Luis Valley R E C, Inc | Open Energy Information

    Open Energy Info (EERE)

    Luis Valley R E C, Inc Jump to: navigation, search Name: San Luis Valley R E C, Inc Place: Colorado Phone Number: 1.800.332.7634 Website: www.slvrec.com Twitter: @SLVREC Facebook:...

  3. City of San Marcos- Energy Efficient Home Rebate Program

    Broader source: Energy.gov [DOE]

    The City of San Marcos offers an Energy Efficient Home Rebate Program for the installation of HVAC equipment, insulation types/levels, duct leakage, windows and doors.  A homeowner or tenant with...

  4. San Diego County- Design Standards for County Facilities

    Broader source: Energy.gov [DOE]

    The San Diego County Board of Supervisors established design standards for county facilities and property. Among other requirements,  the policy requires that all new county buildings or major...

  5. CX-001505: Categorical Exclusion Determination | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    505: Categorical Exclusion Determination CX-001505: Categorical Exclusion Determination Transportation Enhancement Initiative CX(s) Applied: A9, A11, B5.1 Date: 04/01/2010 Location(s): San Antonio, Texas Office(s): Energy Efficiency and Renewable Energy, Golden Field Office The City of San Antonio, Texas proposes to use $2,400,000.00 of Energy Efficiency and Conservation Block Grant funding for their proposed Transportation Enhancement Project. This project is comprised of seven (7) activities

  6. Keeping America Competitive: A Solar Manufacturing Boost In San Diego |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy A Solar Manufacturing Boost In San Diego Keeping America Competitive: A Solar Manufacturing Boost In San Diego December 19, 2012 - 4:26pm Addthis Soitec's concentrating photovoltaic modules use Fresnel lenses to concentrate sunlight 500 times and focus it onto small, high-efficiency solar cells. | Photo by Matthias Heyde, Fraunhofer Institute. Soitec's concentrating photovoltaic modules use Fresnel lenses to concentrate sunlight 500 times and focus it onto small,

  7. San Jose, California, Partners With Established Community Groups to Win

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Over Homeowners | Department of Energy California, Partners With Established Community Groups to Win Over Homeowners San Jose, California, Partners With Established Community Groups to Win Over Homeowners A photo of a speaker in front of a crowd. When Better Buildings Program San Jose (BBPSJ) set out to encourage homeowners to install energy upgrades, the program joined forces with trusted community groups to accomplish its goals. Partnering with highly regarded community organizations

  8. San Francisco QER Meeting Video | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    Department of Energy These slides were developed to train site assessors for the City and County of San Francisco. The presentation includes information on how to perform a site assessment for PV and SWH technologies, how to size a system, roof and electrical safety, and tools to use on a site assessment. Location San Francisco, California United States See map: Google Maps Date January 2009 Topic Facilities & Buildings Systems Performance Manufacturing, Workforce & Training

  9. PROJECT PROFILE: University of California San Diego (CSP: COLLECTS) |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy California San Diego (CSP: COLLECTS) PROJECT PROFILE: University of California San Diego (CSP: COLLECTS) Project Name: Dielectric Metasurface Concentrators Funding Opportunity: CSP: COLLECTS SunShot Subprogram: CSP Location: La Jolla, CA SunShot Award Amount: $2,000,000 Awardee Cost Share: $500,000 This project will use planar dielectric metasurfaces to increase the acceptance angle of solar concentrators. Metasurfaces are extremely thin surfaces with unique properties

  10. Monte Carlo prompt dose calculations for the National Ingition Facility

    SciTech Connect (OSTI)

    Latkowski, J.F.; Phillips, T.W.

    1997-01-01

    During peak operation, the National Ignition Facility (NIF) will conduct as many as 600 experiments per year and attain deuterium- tritium fusion yields as high as 1200 MJ/yr. The radiation effective dose equivalent (EDE) to workers is limited to an average of 03 mSv/yr (30 mrem/yr) in occupied areas of the facility. Laboratory personnel determined located outside the facility will receive EDEs <= 0.5 mSv/yr (<= 50 mrem/yr). The total annual occupational EDE for the facility will be maintained at <= 0.1 person-Sv/yr (<= 10 person- rem/yr). To ensure that prompt EDEs meet these limits, three- dimensional Monte Carlo calculations have been completed.

  11. Improved version of the PHOBOS Glauber Monte Carlo

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Loizides, C.; Nagle, J.; Steinberg, P.

    2015-09-01

    “Glauber” models are used to calculate geometric quantities in the initial state of heavy ion collisions, such as impact parameter, number of participating nucleons and initial eccentricity. Experimental heavy-ion collaborations, in particular at RHIC and LHC, use Glauber Model calculations for various geometric observables for determination of the collision centrality. In this document, we describe the assumptions inherent to the approach, and provide an updated implementation (v2) of the Monte Carlo based Glauber Model calculation, which originally was used by the PHOBOS collaboration. The main improvement w.r.t. the earlier version (v1) (Alver et al. 2008) is the inclusion of Tritium,more » Helium-3, and Uranium, as well as the treatment of deformed nuclei and Glauber–Gribov fluctuations of the proton in p +A collisions. A users’ guide (updated to reflect changes in v2) is provided for running various calculations.« less

  12. Advanced Mesh-Enabled Monte carlo capability for Multi-Physics Reactor Analysis

    SciTech Connect (OSTI)

    Wilson, Paul; Evans, Thomas; Tautges, Tim

    2012-12-24

    This project will accumulate high-precision fluxes throughout reactor geometry on a non- orthogonal grid of cells to support multi-physics coupling, in order to more accurately calculate parameters such as reactivity coefficients and to generate multi-group cross sections. This work will be based upon recent developments to incorporate advanced geometry and mesh capability in a modular Monte Carlo toolkit with computational science technology that is in use in related reactor simulation software development. Coupling this capability with production-scale Monte Carlo radiation transport codes can provide advanced and extensible test-beds for these developments. Continuous energy Monte Carlo methods are generally considered to be the most accurate computational tool for simulating radiation transport in complex geometries, particularly neutron transport in reactors. Nevertheless, there are several limitations for their use in reactor analysis. Most significantly, there is a trade-off between the fidelity of results in phase space, statistical accuracy, and the amount of computer time required for simulation. Consequently, to achieve an acceptable level of statistical convergence in high-fidelity results required for modern coupled multi-physics analysis, the required computer time makes Monte Carlo methods prohibitive for design iterations and detailed whole-core analysis. More subtly, the statistical uncertainty is typically not uniform throughout the domain, and the simulation quality is limited by the regions with the largest statistical uncertainty. In addition, the formulation of neutron scattering laws in continuous energy Monte Carlo methods makes it difficult to calculate adjoint neutron fluxes required to properly determine important reactivity parameters. Finally, most Monte Carlo codes available for reactor analysis have relied on orthogonal hexahedral grids for tallies that do not conform to the geometric boundaries and are thus generally not well

  13. Status of Monte-Carlo Event Generators

    SciTech Connect (OSTI)

    Hoeche, Stefan; /SLAC

    2011-08-11

    Recent progress on general-purpose Monte-Carlo event generators is reviewed with emphasis on the simulation of hard QCD processes and subsequent parton cascades. Describing full final states of high-energy particle collisions in contemporary experiments is an intricate task. Hundreds of particles are typically produced, and the reactions involve both large and small momentum transfer. The high-dimensional phase space makes an exact solution of the problem impossible. Instead, one typically resorts to regarding events as factorized into different steps, ordered descending in the mass scales or invariant momentum transfers which are involved. In this picture, a hard interaction, described through fixed-order perturbation theory, is followed by multiple Bremsstrahlung emissions off initial- and final-state and, finally, by the hadronization process, which binds QCD partons into color-neutral hadrons. Each of these steps can be treated independently, which is the basic concept inherent to general-purpose event generators. Their development is nowadays often focused on an improved description of radiative corrections to hard processes through perturbative QCD. In this context, the concept of jets is introduced, which allows to relate sprays of hadronic particles in detectors to the partons in perturbation theory. In this talk, we briefly review recent progress on perturbative QCD in event generation. The main focus lies on the general-purpose Monte-Carlo programs HERWIG, PYTHIA and SHERPA, which will be the workhorses for LHC phenomenology. A detailed description of the physics models included in these generators can be found in [8]. We also discuss matrix-element generators, which provide the parton-level input for general-purpose Monte Carlo.

  14. Monte Carlo analysis of localization errors in magnetoencephalography

    SciTech Connect (OSTI)

    Medvick, P.A.; Lewis, P.S.; Aine, C.; Flynn, E.R.

    1989-01-01

    In magnetoencephalography (MEG), the magnetic fields created by electrical activity in the brain are measured on the surface of the skull. To determine the location of the activity, the measured field is fit to an assumed source generator model, such as a current dipole, by minimizing chi-square. For current dipoles and other nonlinear source models, the fit is performed by an iterative least squares procedure such as the Levenberg-Marquardt algorithm. Once the fit has been computed, analysis of the resulting value of chi-square can determine whether the assumed source model is adequate to account for the measurements. If the source model is adequate, then the effect of measurement error on the fitted model parameters must be analyzed. Although these kinds of simulation studies can provide a rough idea of the effect that measurement error can be expected to have on source localization, they cannot provide detailed enough information to determine the effects that the errors in a particular measurement situation will produce. In this work, we introduce and describe the use of Monte Carlo-based techniques to analyze model fitting errors for real data. Given the details of the measurement setup and a statistical description of the measurement errors, these techniques determine the effects the errors have on the fitted model parameters. The effects can then be summarized in various ways such as parameter variances/covariances or multidimensional confidence regions. 8 refs., 3 figs.

  15. A Monte Carlo algorithm for degenerate plasmas

    SciTech Connect (OSTI)

    Turrell, A.E. Sherlock, M.; Rose, S.J.

    2013-09-15

    A procedure for performing Monte Carlo calculations of plasmas with an arbitrary level of degeneracy is outlined. It has possible applications in inertial confinement fusion and astrophysics. Degenerate particles are initialised according to the FermiDirac distribution function, and scattering is via a Pauli blocked binary collision approximation. The algorithm is tested against degenerate electronion equilibration, and the degenerate resistivity transport coefficient from unmagnetised first order transport theory. The code is applied to the cold fuel shell and alpha particle equilibration problem of inertial confinement fusion.

  16. Carlos Hernandez Faham LBNL NERSC@40

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Hernandez Faham LBNL NERSC@40 Feb 5, 2014 The Large Underground Xenon (LUX) experiment and NERSC NERSC@40 Feb 5, 2014 Carlos Faham 2 Then and now... The Malloc machine, 1933 Edison, 2014 Solved 10 simultaneous differential equations Can do that, too When researchers talk about neutron stars, dark matter and gravitational lenses, they all start the same way: "Zwicky noticed this problem in the 1930s. Back then, nobody listened . . ." Stephen Maurer "Who the devil are you?" *

  17. Monte Carlo simulation for the transport beamline

    SciTech Connect (OSTI)

    Romano, F.; Cuttone, G.; Jia, S. B.; Varisano, A.; Attili, A.; Marchetto, F.; Russo, G.; Cirrone, G. A. P.; Schillaci, F.; Scuderi, V.; Carpinelli, M.

    2013-07-26

    In the framework of the ELIMED project, Monte Carlo (MC) simulations are widely used to study the physical transport of charged particles generated by laser-target interactions and to preliminarily evaluate fluence and dose distributions. An energy selection system and the experimental setup for the TARANIS laser facility in Belfast (UK) have been already simulated with the GEANT4 (GEometry ANd Tracking) MC toolkit. Preliminary results are reported here. Future developments are planned to implement a MC based 3D treatment planning in order to optimize shots number and dose delivery.

  18. Quantum Monte Carlo methods for nuclear physics

    SciTech Connect (OSTI)

    Carlson, Joseph A.; Gandolfi, Stefano; Pederiva, Francesco; Pieper, Steven C.; Schiavilla, Rocco; Schmidt, K. E,; Wiringa, Robert B.

    2014-10-19

    Quantum Monte Carlo methods have proved very valuable to study the structure and reactions of light nuclei and nucleonic matter starting from realistic nuclear interactions and currents. These ab-initio calculations reproduce many low-lying states, moments and transitions in light nuclei, and simultaneously predict many properties of light nuclei and neutron matter over a rather wide range of energy and momenta. We review the nuclear interactions and currents, and describe the continuum Quantum Monte Carlo methods used in nuclear physics. These methods are similar to those used in condensed matter and electronic structure but naturally include spin-isospin, tensor, spin-orbit, and three-body interactions. We present a variety of results including the low-lying spectra of light nuclei, nuclear form factors, and transition matrix elements. We also describe low-energy scattering techniques, studies of the electroweak response of nuclei relevant in electron and neutrino scattering, and the properties of dense nucleonic matter as found in neutron stars. A coherent picture of nuclear structure and dynamics emerges based upon rather simple but realistic interactions and currents.

  19. THE MCNPX MONTE CARLO RADIATION TRANSPORT CODE

    SciTech Connect (OSTI)

    WATERS, LAURIE S.; MCKINNEY, GREGG W.; DURKEE, JOE W.; FENSIN, MICHAEL L.; JAMES, MICHAEL R.; JOHNS, RUSSELL C.; PELOWITZ, DENISE B.

    2007-01-10

    MCNPX (Monte Carlo N-Particle eXtended) is a general-purpose Monte Carlo radiation transport code with three-dimensional geometry and continuous-energy transport of 34 particles and light ions. It contains flexible source and tally options, interactive graphics, and support for both sequential and multi-processing computer platforms. MCNPX is based on MCNP4B, and has been upgraded to most MCNP5 capabilities. MCNP is a highly stable code tracking neutrons, photons and electrons, and using evaluated nuclear data libraries for low-energy interaction probabilities. MCNPX has extended this base to a comprehensive set of particles and light ions, with heavy ion transport in development. Models have been included to calculate interaction probabilities when libraries are not available. Recent additions focus on the time evolution of residual nuclei decay, allowing calculation of transmutation and delayed particle emission. MCNPX is now a code of great dynamic range, and the excellent neutronics capabilities allow new opportunities to simulate devices of interest to experimental particle physics; particularly calorimetry. This paper describes the capabilities of the current MCNPX version 2.6.C, and also discusses ongoing code development.

  20. Quantum Monte Carlo methods for nuclear physics

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Carlson, J.; Gandolfi, S.; Pederiva, F.; Pieper, Steven C.; Schiavilla, R.; Schmidt, K. E.; Wiringa, R. B.

    2015-09-09

    Quantum Monte Carlo methods have proved valuable to study the structure and reactions of light nuclei and nucleonic matter starting from realistic nuclear interactions and currents. These ab-initio calculations reproduce many low-lying states, moments, and transitions in light nuclei, and simultaneously predict many properties of light nuclei and neutron matter over a rather wide range of energy and momenta. The nuclear interactions and currents are reviewed along with a description of the continuum quantum Monte Carlo methods used in nuclear physics. These methods are similar to those used in condensed matter and electronic structure but naturally include spin-isospin, tensor, spin-orbit,more » and three-body interactions. A variety of results are presented, including the low-lying spectra of light nuclei, nuclear form factors, and transition matrix elements. Low-energy scattering techniques, studies of the electroweak response of nuclei relevant in electron and neutrino scattering, and the properties of dense nucleonic matter as found in neutron stars are also described. Furthermore, a coherent picture of nuclear structure and dynamics emerges based upon rather simple but realistic interactions and currents.« less

  1. Quantum Monte Carlo methods for nuclear physics

    SciTech Connect (OSTI)

    Carlson, J.; Gandolfi, S.; Pederiva, F.; Pieper, Steven C.; Schiavilla, R.; Schmidt, K. E.; Wiringa, R. B.

    2015-09-09

    Quantum Monte Carlo methods have proved valuable to study the structure and reactions of light nuclei and nucleonic matter starting from realistic nuclear interactions and currents. These ab-initio calculations reproduce many low-lying states, moments, and transitions in light nuclei, and simultaneously predict many properties of light nuclei and neutron matter over a rather wide range of energy and momenta. The nuclear interactions and currents are reviewed along with a description of the continuum quantum Monte Carlo methods used in nuclear physics. These methods are similar to those used in condensed matter and electronic structure but naturally include spin-isospin, tensor, spin-orbit, and three-body interactions. A variety of results are presented, including the low-lying spectra of light nuclei, nuclear form factors, and transition matrix elements. Low-energy scattering techniques, studies of the electroweak response of nuclei relevant in electron and neutrino scattering, and the properties of dense nucleonic matter as found in neutron stars are also described. Furthermore, a coherent picture of nuclear structure and dynamics emerges based upon rather simple but realistic interactions and currents.

  2. Four decades of implicit Monte Carlo

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Wollaber, Allan B.

    2016-04-25

    In 1971, Fleck and Cummings derived a system of equations to enable robust Monte Carlo simulations of time-dependent, thermal radiative transfer problems. Denoted the “Implicit Monte Carlo” (IMC) equations, their solution remains the de facto standard of high-fidelity radiative transfer simulations. Over the course of 44 years, their numerical properties have become better understood, and accuracy enhancements, novel acceleration methods, and variance reduction techniques have been suggested. In this review, we rederive the IMC equations—explicitly highlighting assumptions as they are made—and outfit the equations with a Monte Carlo interpretation. We put the IMC equations in context with other approximate formsmore » of the radiative transfer equations and present a new demonstration of their equivalence to another well-used linearization solved with deterministic transport methods for frequency-independent problems. We discuss physical and numerical limitations of the IMC equations for asymptotically small time steps, stability characteristics and the potential of maximum principle violations for large time steps, and solution behaviors in an asymptotically thick diffusive limit. We provide a new stability analysis for opacities with general monomial dependence on temperature. Here, we consider spatial accuracy limitations of the IMC equations and discussion acceleration and variance reduction techniques.« less

  3. Multilevel Monte Carlo simulation of Coulomb collisions

    SciTech Connect (OSTI)

    Rosin, M.S.; Ricketson, L.F.; Dimits, A.M.; Caflisch, R.E.; Cohen, B.I.

    2014-10-01

    We present a new, for plasma physics, highly efficient multilevel Monte Carlo numerical method for simulating Coulomb collisions. The method separates and optimally minimizes the finite-timestep and finite-sampling errors inherent in the Langevin representation of the Landau–Fokker–Planck equation. It does so by combining multiple solutions to the underlying equations with varying numbers of timesteps. For a desired level of accuracy ε, the computational cost of the method is O(ε{sup −2}) or O(ε{sup −2}(lnε){sup 2}), depending on the underlying discretization, Milstein or Euler–Maruyama respectively. This is to be contrasted with a cost of O(ε{sup −3}) for direct simulation Monte Carlo or binary collision methods. We successfully demonstrate the method with a classic beam diffusion test case in 2D, making use of the Lévy area approximation for the correlated Milstein cross terms, and generating a computational saving of a factor of 100 for ε=10{sup −5}. We discuss the importance of the method for problems in which collisions constitute the computational rate limiting step, and its limitations.

  4. Quantum Monte Carlo methods for nuclear physics

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Carlson, Joseph A.; Gandolfi, Stefano; Pederiva, Francesco; Pieper, Steven C.; Schiavilla, Rocco; Schmidt, K. E,; Wiringa, Robert B.

    2014-10-19

    Quantum Monte Carlo methods have proved very valuable to study the structure and reactions of light nuclei and nucleonic matter starting from realistic nuclear interactions and currents. These ab-initio calculations reproduce many low-lying states, moments and transitions in light nuclei, and simultaneously predict many properties of light nuclei and neutron matter over a rather wide range of energy and momenta. We review the nuclear interactions and currents, and describe the continuum Quantum Monte Carlo methods used in nuclear physics. These methods are similar to those used in condensed matter and electronic structure but naturally include spin-isospin, tensor, spin-orbit, and three-bodymore » interactions. We present a variety of results including the low-lying spectra of light nuclei, nuclear form factors, and transition matrix elements. We also describe low-energy scattering techniques, studies of the electroweak response of nuclei relevant in electron and neutrino scattering, and the properties of dense nucleonic matter as found in neutron stars. A coherent picture of nuclear structure and dynamics emerges based upon rather simple but realistic interactions and currents.« less

  5. The effects of mapping CT images to Monte Carlo materials on GEANT4 proton simulation accuracy

    SciTech Connect (OSTI)

    Barnes, Samuel; McAuley, Grant; Slater, James; Wroe, Andrew

    2013-04-15

    Purpose: Monte Carlo simulations of radiation therapy require conversion from Hounsfield units (HU) in CT images to an exact tissue composition and density. The number of discrete densities (or density bins) used in this mapping affects the simulation accuracy, execution time, and memory usage in GEANT4 and other Monte Carlo code. The relationship between the number of density bins and CT noise was examined in general for all simulations that use HU conversion to density. Additionally, the effect of this on simulation accuracy was examined for proton radiation. Methods: Relative uncertainty from CT noise was compared with uncertainty from density binning to determine an upper limit on the number of density bins required in the presence of CT noise. Error propagation analysis was also performed on continuously slowing down approximation range calculations to determine the proton range uncertainty caused by density binning. These results were verified with Monte Carlo simulations. Results: In the presence of even modest CT noise (5 HU or 0.5%) 450 density bins were found to only cause a 5% increase in the density uncertainty (i.e., 95% of density uncertainty from CT noise, 5% from binning). Larger numbers of density bins are not required as CT noise will prevent increased density accuracy; this applies across all types of Monte Carlo simulations. Examining uncertainty in proton range, only 127 density bins are required for a proton range error of <0.1 mm in most tissue and <0.5 mm in low density tissue (e.g., lung). Conclusions: By considering CT noise and actual range uncertainty, the number of required density bins can be restricted to a very modest 127 depending on the application. Reducing the number of density bins provides large memory and execution time savings in GEANT4 and other Monte Carlo packages.

  6. Cluster expansion modeling and Monte Carlo simulation of alnico...

    Office of Scientific and Technical Information (OSTI)

    Accepted Manuscript: Cluster expansion modeling and Monte Carlo simulation of alnico 5-7 permanent magnets This content will become publicly available on March 5, 2016 Prev Next...

  7. Evaluation of Monte Carlo Electron-Transport Algorithms in the...

    Office of Scientific and Technical Information (OSTI)

    Series Codes for Stochastic-Media Simulations. Citation Details In-Document Search Title: Evaluation of Monte Carlo Electron-Transport Algorithms in the Integrated Tiger Series ...

  8. Molecular Monte Carlo Simulations Using Graphics Processing Units...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    allocation of the GPU hardware resources. We make comparisons between the GPU and the serial CPU Monte Carlo implementations to assess speedup over conventional microprocessors....

  9. HILO: Quasi Diffusion Accelerated Monte Carlo on Hybrid Architectures

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    fidelity simulation of a diverse range of kinetic systems. Available for thumbnail of Feynman Center (505) 665-9090 Email HILO: Quasi Diffusion Accelerated Monte Carlo on Hybrid...

  10. Optimal sampling efficiency in Monte Carlo sampling with an approximat...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Optimal sampling efficiency in Monte Carlo sampling with an approximate potential Citation Details In-Document Search Title: Optimal sampling efficiency in Monte ...

  11. Quantum Monte Carlo Calculations of Light Nuclei Using Chiral...

    Office of Scientific and Technical Information (OSTI)

    Title: Quantum Monte Carlo Calculations of Light Nuclei Using Chiral Potentials Authors: Lynn, J. E. ; Carlson, J. ; Epelbaum, E. ; Gandolfi, S. ; Gezerlis, A. ; Schwenk, A. ...

  12. Environmental Evaluation for Installation of Solar Arrays at San Jose/Santa Clara Water Pollution Control Plant

    Office of Energy Efficiency and Renewable Energy (EERE)

    The purpose of this technical memorandum (TM) is to review the options to develop a potential solar array development (Project) within or adjacent to western burrowing owl (Athene cunicularia) habitat in the buffer lands that surround the San José/Santa Clara Water Pollution Control Plant (WPCP) and to determine if there is a ground-mounted solar photovoltaic (PV) configuration that would enable a workable co-existence between the burrowing owl habitat and the PV arrays.

  13. Slip and Dilation Tendency Analysis of the San Emidio Geothermal Area

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Faulds, James E.

    2013-12-31

    Stress field variation within each focus area was approximated based on regional published data and the world stress database (Hickman et al., 2000; Hickman et al., 1998 Robertson-Tait et al., 2004; Hickman and Davatzes, 2010; Davatzes and Hickman, 2006; Blake and Davatzes 2011; Blake and Davatzes, 2012; Moeck et al., 2010; Moos and Ronne, 2010 and Reinecker et al., 2005) as well as local stress information if applicable. For faults within these focus systems we applied either a normal faulting stress regime where the vertical stress (sv) is larger than the maximum horizontal stress (shmax) which is larger than the minimum horizontal stress (sv>shmax>shmin) or strike-slip faulting stress regime where the maximum horizontal stress (shmax) is larger than the vertical stress (sv) which is larger than the minimum horizontal stress (shmax >sv>shmin) depending on the general tectonic province of the system. Based on visual inspection of the limited stress magnitude data in the Great Basin we used magnitudes such that shmin/shmax = .527 and shmin/sv= .46, which are consistent with complete and partial stress field determinations from Desert Peak, Coso, the Fallon area and Dixie valley (Hickman et al., 2000; Hickman et al., 1998 Robertson-Tait et al., 2004; Hickman and Davatzes, 2011; Davatzes and Hickman, 2006; Blake and Davatzes 2011; Blake and Davatzes, 2012). Slip and dilation tendency for the San Emidio geothermal field was calculated based on the faults mapped Tuscarora area (Rhodes, 2011). The San Emidio area lies in the Basin and Range Province, as such we applied a normal faulting stress regime to the San Emidio area faults, with a minimum horizontal stress direction oriented 115, based on inspection of local and regional stress determinations, as explained above. This is consistent with the shmin determined through inversion of fault data by Rhodes (2011). Under these stress conditions north-northeast striking, steeply dipping fault segments have the highest

  14. The progress of pollution prevention in San Diego County

    SciTech Connect (OSTI)

    Hess, J.R.

    1995-12-01

    The goal of pollution prevention to reduce or eliminate the creation of pollutants through source reduction has gained popularity in the industrial and legislative communities. Corporations have instituted voluntary pollution prevention programs and are participating in government sponsored programs such as the U.S. EPA`s 33/50 program. In parallel to these voluntary efforts, legislation has been promulgated at both the federal and state levels which require industrial facilities to establish hazardous waste minimization programs and to include manufacturing activity data when submitting chemical releases reports under TRI. However, the success of these efforts on a county wide basis has not been established. This study establishes a pollutant prevention index that indicates that pollution prevention and economic activity are not mutually exclusive and evaluates the pollutant discharge trends in San Diego County, California from 1987 through 1992. The pollutant discharges evaluated include: hazardous waste generation, as reported to the Cal-EPA on the uniform hazardous waste manifests; air emissions from annual emission inventories; heavy metal concentrations in industrial wastewater discharges; and annual toxic chemical releases as reported on the SARA 313 Toxic Chemical Release Inventory. Economic indicators used as the ratio denominator for normalizing the pollutant data included: energy use, gross regional product, and value of manufactured product. The relationship of between discharges and economic indicators was analyzed using the Spearman Rank Correlation Coefficient. An evaluation of the raw data was conducted to determine which ratio(s) would be representative pollution prevention indices. Two ratios emerge as viable pollution indices. These are hazardous waste per gross regional product and toxic chemical releases per value of manufactured product.

  15. Exploring theory space with Monte Carlo reweighting

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Gainer, James S.; Lykken, Joseph; Matchev, Konstantin T.; Mrenna, Stephen; Park, Myeonghun

    2014-10-13

    Theories of new physics often involve a large number of unknown parameters which need to be scanned. Additionally, a putative signal in a particular channel may be due to a variety of distinct models of new physics. This makes experimental attempts to constrain the parameter space of motivated new physics models with a high degree of generality quite challenging. We describe how the reweighting of events may allow this challenge to be met, as fully simulated Monte Carlo samples generated for arbitrary benchmark models can be effectively re-used. Specifically, we suggest procedures that allow more efficient collaboration between theorists andmore » experimentalists in exploring large theory parameter spaces in a rigorous way at the LHC.« less

  16. Exploring theory space with Monte Carlo reweighting

    SciTech Connect (OSTI)

    Gainer, James S.; Lykken, Joseph; Matchev, Konstantin T.; Mrenna, Stephen; Park, Myeonghun

    2014-10-13

    Theories of new physics often involve a large number of unknown parameters which need to be scanned. Additionally, a putative signal in a particular channel may be due to a variety of distinct models of new physics. This makes experimental attempts to constrain the parameter space of motivated new physics models with a high degree of generality quite challenging. We describe how the reweighting of events may allow this challenge to be met, as fully simulated Monte Carlo samples generated for arbitrary benchmark models can be effectively re-used. Specifically, we suggest procedures that allow more efficient collaboration between theorists and experimentalists in exploring large theory parameter spaces in a rigorous way at the LHC.

  17. Exploring theory space with Monte Carlo reweighting

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Gainer, James S.; Lykken, Joseph; Matchev, Konstantin T.; Mrenna, Stephen; Park, Myeonghun

    2014-10-13

    Theories of new physics often involve a large number of unknown parameters which need to be scanned. Additionally, a putative signal in a particular channel may be due to a variety of distinct models of new physics. This makes experimental attempts to constrain the parameter space of motivated new physics models with a high degree of generality quite challenging. We describe how the reweighting of events may allow this challenge to be met, as fully simulated Monte Carlo samples generated for arbitrary benchmark models can be effectively re-used. In particular, we suggest procedures that allow more efficient collaboration between theoristsmoreand experimentalists in exploring large theory parameter spaces in a rigorous way at the LHC.less

  18. California - San Joaquin Basin Onshore Coalbed Methane Proved Reserves

    U.S. Energy Information Administration (EIA) Indexed Site

    (Billion Cubic Feet) San Joaquin Basin Onshore Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 0 0 0 0 2010's 0 0 0 0 0 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Coalbed Methane Proved Reserves as of Dec. 31 CA, San Joaquin

  19. San Joaquin Solar 1 & 2 Solar Power Plant | Open Energy Information

    Open Energy Info (EERE)

    Solar 1 & 2 Solar Power Plant Jump to: navigation, search Name San Joaquin Solar 1 & 2 Solar Power Plant Facility San Joaquin Solar 1 & 2 Sector Solar Facility Type Hybrid...

  20. The Thermal Regime Of The San Juan Basin Since Late Cretaceous...

    Open Energy Info (EERE)

    Times And Its Relationship To San Juan Mountains Thermal Sources Abstract Heat-flow and coal-maturation data suggest that the thermal history of the San Juan Basin has...

  1. Price of San Elizario, TX Natural Gas Pipeline Exports to Mexico...

    Gasoline and Diesel Fuel Update (EIA)

    Price of San Elizario, TX Natural Gas Pipeline Exports to Mexico (Dollars per Thousand Cubic Feet) Price of San Elizario, TX Natural Gas Pipeline Exports to Mexico (Dollars per...

  2. PSInSAR At San Emidio Desert Area (DOE GTP) | Open Energy Information

    Open Energy Info (EERE)

    PSInSAR At San Emidio Desert Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: PSInSAR At San Emidio Desert Area (DOE GTP)...

  3. Bike Sharing in Texas: San Antonio Rolls Out Program Aimed at...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Bike Sharing in Texas: San Antonio Rolls Out Program Aimed at Energy Efficiency and Public Health Bike Sharing in Texas: San Antonio Rolls Out Program Aimed at Energy Efficiency ...

  4. EA-1840: California Valley Solar Ranch Project in San Luis Obispo County,

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    CA | Department of Energy 0: California Valley Solar Ranch Project in San Luis Obispo County, CA EA-1840: California Valley Solar Ranch Project in San Luis Obispo County, CA August 3, 2011 EA-1840: Final Environmental Assessment California Valley Solar Ranch Project in San Luis Obispo and Kern Counties, California August 3, 2011 EA-1840: Finding of No Significant Impact Loan Guarantee to High Plains II, LLC for the California Valley Solar Ranch Project in San Luis Obispo County and Kern

  5. EERE Success Story-San Antonio Better Buildings Partners Recognized for

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Advancing Energy Efficiency | Department of Energy San Antonio Better Buildings Partners Recognized for Advancing Energy Efficiency EERE Success Story-San Antonio Better Buildings Partners Recognized for Advancing Energy Efficiency May 21, 2015 - 2:55pm Addthis In April, the Energy Department recognized Better Buildings Challenge San Antonio, Texas area partners. Dr. Kathleen Hogan, Deputy Assistant Secretary for Energy Efficiency met with Macy's and the San Antonio Housing Authority (SAHA),

  6. John Shalf Gives Talk at San Francisco High Performance Computing Meetup

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    John Shalf Gives Talk at San Francisco High Performance Computing Meetup John Shalf Gives Talk at San Francisco High Performance Computing Meetup September 17, 2014 XBD200503 00083 John Shalf In his role as NERSC's chief technology officer, John Shalf gave a talk on "Converging Interconnect Requirements for HPC and Warehouse Scale Computing at San Francisco High Performance Computing Meetup. The Sept 17 meeting was held at GeekdomSF in downtown San Francisco. The group, which describes

  7. Appraisal of coal resources from uranium drill-hole logs, southern San Juan basin, New Mexico

    SciTech Connect (OSTI)

    Feldman, S.C.

    1984-04-01

    Geophysical logs from uranium drill holes in the Grants region are a valuable source of information on coal resources. Coal occurs in the southern San Juan basin of New Mexico in the Upper Cretaceous Gallup Sandstone, Crevasse Canyon Formation, and Menefee Formation. Uranium has been mined from the Upper Jurassic Morrison Formation that underlies the coal-bearing Cretaceous formations and is separated from them by approximately 1000 ft (300 m) of section. Permission was obtained from Santa Fe Mining, Inc., Pathfinder Mines Corp., and Ranchers Exploration and Development Corp. to examine their uranium drill logs for information on coal. Over 1400 logs spudded above the base of the Gallup formation were examined, and depth to coal, coal thickness, and coal stratigraphic horizon were determined for coal beds at least 3 ft (1 m) thick. Coal isopachs have been drawn, and depth from the surface to the first coal have been contoured for the Crevasse Canyon and Menefee Formations. Data from an earlier study, which used geophysical logs from petroleum test borings, has been incorporated. The relationship between the coal resources determined from uranium drill holes and known coal deposits and mines in the southern San Juan basin is discussed.

  8. Opening the Door: San Diego R&D Workshop Video | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Opening the Door: San Diego R&D Workshop Video Opening the Door: San Diego R&D Workshop Video View the video from Jim Brodrick's opening presentation at the February 2011 DOE SSL R&D Workshop in San Diego, California

  9. Earthquake geology of the northern San Andreas Fault near Point Arena, California

    SciTech Connect (OSTI)

    Prentice, C.S.

    1989-01-01

    Excavations into a Holocene alluvial fan provided exposures of a record of prehistoric earthquakes near Point Arena, California. At least five earthquakes were recognized in the section. All of these occurred since the deposition of a unit that is approximately 2000 years old. Radiocarbon dating allows constraints to be placed on the dates of these earthquakes. A buried Holocene (2356-2709 years old) channel has been offset a maximum of 64 {plus minus} 2 meters. This implies a maximum slip rate of 25.5 {plus minus} 2.5 mm/yr. These data suggest that the average recurrence interval for great earthquakes on this segment of the San Andreas fault is long - between about 200 and 400 years. Offset marine terrace risers near Point Arena and an offset landslide near Fort Ross provide estimates of the average slip rate since Late Pleistocene time. Near Fort Ross, an offset landslide implies a slip rate of less than 39 mm/yr. Correlation and age estimates of two marine terrace risers across the San Andreas fault near Point Arena suggest slip rates of about 18-19 mm/yr since Late Pleistocene time. Tentative correlation of the Pliocene Ohlson Ranch Formation in northwestern Sonoma County with deposits 50 km to the northwest near Point Arean, provides piercing points to use in calculation of a Pliocene slip rate for the northern San Andreas fault. A fission-track age 3.3 {plus minus} 0.8 Ma was determined for zicrons separated from a tuff collected from the Ohlson Ranch Formation. The geomorphology of the region, especially of the two major river drainages, supports the proposed 50 km Pliocene offset. This implies a Pliocene slip rate of at least 12-20 mm/yr. These rates for different time periods imply that much of the Pacific-North American plate motion must be accommodated on other structures at this latitude.

  10. Binding energies and spatial structures of small carrier complexes in monolayer transition-metal dichalcogenides via diffusion Monte Carlo

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Mayers, Matthew Z.; Berkelbach, Timothy C.; Hybertsen, Mark S.; Reichman, David R.

    2015-10-09

    Ground-state diffusion Monte Carlo is used to investigate the binding energies and intercarrier radial probability distributions of excitons, trions, and biexcitons in a variety of two-dimensional transition-metal dichalcogenide materials. We compare these results to approximate variational calculations, as well as to analogous Monte Carlo calculations performed with simplified carrier interaction potentials. Our results highlight the successes and failures of approximate approaches as well as the physical features that determine the stability of small carrier complexes in monolayer transition-metal dichalcogenide materials. In conclusion, we discuss points of agreement and disagreement with recent experiments.

  11. San Francisco Mayor's Solar Founders' Circle Workshop for Assessors

    Broader source: Energy.gov [DOE]

    These slides were developed to train site assessors for the City and County of San Francisco. The presentation includes information on how to perform a site assessment for PV and SWH technologies, how to size a system, roof and electrical safety, and tools to use on a site assessment.

  12. Story Road Landfill Solar Site Evaluation: San Jose

    Office of Energy Efficiency and Renewable Energy (EERE)

    This report describes the findings of a solar site evaluation conducted at the Story Road Landfill (Site) in the City of San Jose, California (City). This evaluation was conducted as part of a larger study to assess solar potential at multiple public facilities within the City.

  13. EIS-0395: San Luis Rio Colorado Project, AZ

    Broader source: Energy.gov [DOE]

    This EIS analyzes DOE's decision to construct and operate a proposed transmission line originating at the proposed San Luis Rio Colorado (SLRC) Power Center in Sonora, Mexico, interconnect with Western's existing Gila Substation, and continue to Arizona Public Service Company’s (APS) North Gila Substation

  14. Monte Carlo Implementation Of Up- Or Down-Scattering Due To Collisions...

    Office of Scientific and Technical Information (OSTI)

    Monte Carlo Implementation Of Up- Or Down-Scattering Due To Collisions With Material At Finite Temperature Citation Details In-Document Search Title: Monte Carlo Implementation Of ...

  15. Recent advances and future prospects for Monte Carlo

    SciTech Connect (OSTI)

    Brown, Forrest B

    2010-01-01

    The history of Monte Carlo methods is closely linked to that of computers: The first known Monte Carlo program was written in 1947 for the ENIAC; a pre-release of the first Fortran compiler was used for Monte Carlo In 1957; Monte Carlo codes were adapted to vector computers in the 1980s, clusters and parallel computers in the 1990s, and teraflop systems in the 2000s. Recent advances include hierarchical parallelism, combining threaded calculations on multicore processors with message-passing among different nodes. With the advances In computmg, Monte Carlo codes have evolved with new capabilities and new ways of use. Production codes such as MCNP, MVP, MONK, TRIPOLI and SCALE are now 20-30 years old (or more) and are very rich in advanced featUres. The former 'method of last resort' has now become the first choice for many applications. Calculations are now routinely performed on office computers, not just on supercomputers. Current research and development efforts are investigating the use of Monte Carlo methods on FPGAs. GPUs, and many-core processors. Other far-reaching research is exploring ways to adapt Monte Carlo methods to future exaflop systems that may have 1M or more concurrent computational processes.

  16. Alternative Fuels Data Center: San Diego Dealers Plug-In to Electric

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Vehicle Progress San Diego Dealers Plug-In to Electric Vehicle Progress to someone by E-mail Share Alternative Fuels Data Center: San Diego Dealers Plug-In to Electric Vehicle Progress on Facebook Tweet about Alternative Fuels Data Center: San Diego Dealers Plug-In to Electric Vehicle Progress on Twitter Bookmark Alternative Fuels Data Center: San Diego Dealers Plug-In to Electric Vehicle Progress on Google Bookmark Alternative Fuels Data Center: San Diego Dealers Plug-In to Electric Vehicle

  17. Fuel Cell Electric Vehicles Getting a Boost in San Francisco | Department

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of Energy Electric Vehicles Getting a Boost in San Francisco Fuel Cell Electric Vehicles Getting a Boost in San Francisco May 23, 2016 - 2:55pm Addthis A hydrogen fueling station in San Francisco, CA. | Photo courtesy of the California Fuel Cell Partnership A hydrogen fueling station in San Francisco, CA. | Photo courtesy of the California Fuel Cell Partnership Sunita Satyapal Director, Fuel Cell Technologies Office What are the key facts? Last week, the city of San Francisco was named one

  18. World's First Algae Surfboard Makes Waves in San Diego | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy World's First Algae Surfboard Makes Waves in San Diego World's First Algae Surfboard Makes Waves in San Diego April 23, 2015 - 4:15pm Addthis On the eve of Earth Day, UCSD unveiled their new innovative and sustainable algae surfboard at the San Diego Symphony Hall. San Diego Mayor Kevin Faulconer, Marty Gilchrist of Arctic Foam, Steve Mayfield of Cal-CAB, and champion surfer Rob Machado discuss the development of the "surfboard of the future." Credit: UC San Diego

  19. Cohesion Energetics of Carbon Allotropes: Quantum Monte Carlo Study

    SciTech Connect (OSTI)

    Shin, Hyeondeok; Kang, Sinabro; Koo, Jahyun; Lee, Hoonkyung; Kim, Jeongnim; Kwon, Yongkyung

    2014-01-01

    We have performed quantum Monte Carlo calculations to study the cohesion energetics of carbon allotropes, including sp3-bonded diamond, sp2-bonded graphene, sp-sp2 hybridized graphynes, and sp-bonded carbyne. The comput- ed cohesive energies of diamond and graphene are found to be in excellent agreement with the corresponding values de- termined experimentally for diamond and graphite, respectively, when the zero-point energies, along with the interlayer binding in the case of graphite, are included. We have also found that the cohesive energy of graphyne decreases system- atically as the ratio of sp-bonded carbon atoms increases. The cohesive energy of -graphyne, the most energetically- stable graphyne, turns out to be 6.766(6) eV/atom, which is smaller than that of graphene by 0.698(12) eV/atom. Experi- mental difficulty in synthesizing graphynes could be explained by their significantly smaller cohesive energies. Finally we conclude that the cohesive energy of a newly-proposed two-dimensional carbon network can be accurately estimated with the carbon-carbon bond energies determined from the cohesive energies of graphene and three different graphynes.

  20. Quantum Monte Carlo for electronic structure: Recent developments and applications

    SciTech Connect (OSTI)

    Rodriquez, M. M.S.

    1995-04-01

    Quantum Monte Carlo (QMC) methods have been found to give excellent results when applied to chemical systems. The main goal of the present work is to use QMC to perform electronic structure calculations. In QMC, a Monte Carlo simulation is used to solve the Schroedinger equation, taking advantage of its analogy to a classical diffusion process with branching. In the present work the author focuses on how to extend the usefulness of QMC to more meaningful molecular systems. This study is aimed at questions concerning polyatomic and large atomic number systems. The accuracy of the solution obtained is determined by the accuracy of the trial wave function`s nodal structure. Efforts in the group have given great emphasis to finding optimized wave functions for the QMC calculations. Little work had been done by systematically looking at a family of systems to see how the best wave functions evolve with system size. In this work the author presents a study of trial wave functions for C, CH, C{sub 2}H and C{sub 2}H{sub 2}. The goal is to study how to build wave functions for larger systems by accumulating knowledge from the wave functions of its fragments as well as gaining some knowledge on the usefulness of multi-reference wave functions. In a MC calculation of a heavy atom, for reasonable time steps most moves for core electrons are rejected. For this reason true equilibration is rarely achieved. A method proposed by Batrouni and Reynolds modifies the way the simulation is performed without altering the final steady-state solution. It introduces an acceleration matrix chosen so that all coordinates (i.e., of core and valence electrons) propagate at comparable speeds. A study of the results obtained using their proposed matrix suggests that it may not be the optimum choice. In this work the author has found that the desired mixing of coordinates between core and valence electrons is not achieved when using this matrix. A bibliography of 175 references is included.

  1. VWA-0021- In the Matter of Carlos M. Castillo

    Broader source: Energy.gov [DOE]

    This Decision involves a complaint filed by Carlos M. Castillo (Castillo or “the complainant”) under the Department of Energy (DOE) Contractor Employee Protection Program, 10 C.F.R. Part 708....

  2. Monte Carlo Hauser-Feshbach Calculations of Prompt Fission Neutrons...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Monte Carlo Hauser-Feshbach Calculations of Prompt Fission Neutrons and Gamma Rays: Application to Thermal Neutron-Induced Fission Reactions on U-235 and Pu-239 ...

  3. Generalizing the self-healing diffusion Monte Carlo approach...

    Office of Scientific and Technical Information (OSTI)

    Generalizing the self-healing diffusion Monte Carlo approach to finite temperature: A path for the optimization of low-energy many-body bases Citation Details In-Document Search ...

  4. Efficient Monte Carlo Simulations of Gas Molecules Inside Porous...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Efficient Monte Carlo Simulations of Gas Molecules Inside Porous Materials Previous Next List J. Kim and B. Smit, J. Chem. Theory Comput. 8 (7), 2336 (2012) DOI: 10.1021ct3003699 ...

  5. Monte Carlo Hybrid Applied to Binary Stochastic Mixtures

    Energy Science and Technology Software Center (OSTI)

    2008-08-11

    The purpose of this set of codes isto use an inexpensive, approximate deterministic flux distribution to generate weight windows, wihich will then be used to bound particle weights for the Monte Carlo code run. The process is not automated; the user must run the deterministic code and use the output file as a command-line argument for the Monte Carlo code. Two sets of text input files are included as test problems/templates.

  6. Fast Monte Carlo for radiation therapy: the PEREGRINE Project (Conference)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    | SciTech Connect Fast Monte Carlo for radiation therapy: the PEREGRINE Project Citation Details In-Document Search Title: Fast Monte Carlo for radiation therapy: the PEREGRINE Project × You are accessing a document from the Department of Energy's (DOE) SciTech Connect. This site is a product of DOE's Office of Scientific and Technical Information (OSTI) and is provided as a public service. Visit OSTI to utilize additional information resources in energy science and technology. A paper copy

  7. Multiscale MonteCarlo equilibration: Pure Yang-Mills theory

    SciTech Connect (OSTI)

    Endres, Michael G.; Brower, Richard C.; Orginos, Kostas; Detmold, William; Pochinsky, Andrew V.

    2015-12-29

    In this study, we present a multiscale thermalization algorithm for lattice gauge theory, which enables efficient parallel generation of uncorrelated gauge field configurations. The algorithm combines standard Monte Carlo techniques with ideas drawn from real space renormalization group and multigrid methods. We demonstrate the viability of the algorithm for pure Yang-Mills gauge theory for both heat bath and hybrid Monte Carlo evolution, and show that it ameliorates the problem of topological freezing up to controllable lattice spacing artifacts.

  8. Utility of Monte Carlo Modelling for Holdup Measurements.

    SciTech Connect (OSTI)

    Belian, Anthony P.; Russo, P. A.; Weier, Dennis R. ,

    2005-01-01

    Non-destructive assay (NDA) measurements performed to locate and quantify holdup in the Oak Ridge K25 enrichment cascade used neutron totals counting and low-resolution gamma-ray spectroscopy. This facility housed the gaseous diffusion process for enrichment of uranium, in the form of UF{sub 6} gas, from {approx} 20% to 93%. Inventory of {sup 235}U inventory in K-25 is all holdup. These buildings have been slated for decontaminatino and decommissioning. The NDA measurements establish the inventory quantities and will be used to assure criticality safety and meet criteria for waste analysis and transportation. The tendency to err on the side of conservatism for the sake of criticality safety in specifying total NDA uncertainty argues, in the interests of safety and costs, for obtaining the best possible value of uncertainty at the conservative confidence level for each item of process equipment. Variable deposit distribution is a complex systematic effect (i.e., determined by multiple independent variables) on the portable NDA results for very large and bulk converters that contributes greatly to total uncertainty for holdup in converters measured by gamma or neutron NDA methods. Because the magnitudes of complex systematic effects are difficult to estimate, computational tools are important for evaluating those that are large. Motivated by very large discrepancies between gamma and neutron measurements of high-mass converters with gamma results tending to dominate, the Monte Carlo code MCNP has been used to determine the systematic effects of deposit distribution on gamma and neutron results for {sup 235}U holdup mass in converters. This paper details the numerical methodology used to evaluate large systematic effects unique to each measurement type, validates the methodology by comparison with measurements, and discusses how modeling tools can supplement the calibration of instruments used for holdup measurements by providing realistic values at well

  9. PROBLEM DEPENDENT DOPPLER BROADENING OF CONTINUOUS ENERGY CROSS SECTIONS IN THE KENO MONTE CARLO COMPUTER CODE

    SciTech Connect (OSTI)

    Hart, S. W. D.; Maldonado, G. Ivan; Celik, Cihangir; Leal, Luiz C

    2014-01-01

    For many Monte Carlo codes cross sections are generally only created at a set of predetermined temperatures. This causes an increase in error as one moves further and further away from these temperatures in the Monte Carlo model. This paper discusses recent progress in the Scale Monte Carlo module KENO to create problem dependent, Doppler broadened, cross sections. Currently only broadening the 1D cross sections and probability tables is addressed. The approach uses a finite difference method to calculate the temperature dependent cross-sections for the 1D data, and a simple linear-logarithmic interpolation in the square root of temperature for the probability tables. Work is also ongoing to address broadening theS (alpha , beta) tables. With the current approach the temperature dependent cross sections are Doppler broadened before transport starts, and, for all but a few isotopes, the impact on cross section loading is negligible. Results can be compared with those obtained by using multigroup libraries, as KENO currently does interpolation on the multigroup cross sections to determine temperature dependent cross-sections. Current results compare favorably with these expected results.

  10. Rate Analysis of Two Photovoltaic Systems in San Diego

    SciTech Connect (OSTI)

    Doris, E.; Ong, S.; Van Geet, O.

    2009-07-01

    Analysts have found increasing evidence that rate structure has impacts on the economics of solar systems. This paper uses 2007 15-minute interval photovoltaic (PV) system and load data from two San Diego City water treatment facilities to illustrate impacts of different rate designs. The comparison is based on rates available in San Diego at the time of data collection and include proportionately small to large demand charges (relative to volumetric consumption), and varying on- and off- peak times. Findings are twofold for these large commercial systems: 1) transferring costs into demand charges does not result in savings and 2) changes in peak times do not result in a major cost difference during the course of a year. While lessons learned and discussion on rate components are based on the findings, the applicability is limited to buildings with similar systems, environments, rate options, and loads.

  11. NNSA to Conduct Aerial Radiological Surveys Over San Francisco, Pacifica,

    National Nuclear Security Administration (NNSA)

    Berkeley, And Oakland, CA Areas | National Nuclear Security Administration | (NNSA) Conduct Aerial Radiological Surveys Over San Francisco, Pacifica, Berkeley, And Oakland, CA Areas August 27, 2015 A U.S. Department of Energy National Nuclear Security Administration (NNSA) helicopter may be seen flying at low altitudes around the California Bay Area from September 1 - 6, 2015. The purpose of the flyovers is to measure naturally occurring background radiation. A twin-engine Bell 412

  12. Solar Survey of PV System Owners: San Diego

    Broader source: Energy.gov [DOE]

    The purpose of the survey was to understand the motivation, challenges and benefits perceived by individuals who decided to install solar systems in the City of San Diego. Approximately 2000 surveys were sent, and 641 surveys were completed. The primary response was from the residential sector. Individuals had the option to reply electronically, using Survey Monkey, or to complete a paper survey. All responses were combined and checked to ensure that there were no duplicates.

  13. The performance of magnetic lens for focusing VCN-SANS.

    SciTech Connect (OSTI)

    Yamada, M.; Iwashita, Y.; Kanaya, T.; Ichikawa, M.; Tongu, H.; Kennedy, S. J.; Shimizu, H. M.; Mishima, K.; Yamada, N. L.; Hirota, K.; Carpenter, J..; Lal, J.; Anderson, K.; Geltenbort, P.; Guerard, B.; Manzin, G.; Hino, M.; Kitaguchi, M.; Bleuel, M.; NOP Collaboration

    2011-01-01

    We have developed a prototype rotating-permanent magnet sextupole lens (named rot-PMSx) for more efficient experiments with neutron beams in time of flight (ToF) mode. This lens can modulate the focusing strength over range 1.5 x 10{sup 4} T/m{sup 2} {le} g' {le} 5.9 x 10{sup 4} T/m{sup 2}. Synchronization between the modulation and the beam pulse produces a focused beam without significant chromatic aberration. We anticipate that this lens could be utilized in focusing small angle neutron scattering (SANS) instruments for novel approach to high resolution SANS. We carried out experiments testing the principle of this lens at the very cold neutron (VCN) beamline (PF2) at Institut Laue-Langevin (ILL), France. The focused beam image size at the detector was kept constant at the same beam size as the source ({approx} 3 mm) over a wavelength range of 30 {angstrom} {le} {lambda} {le} 48 {angstrom} in focal length of {approx} 1.14 m. The flux gain was about 12 relative to a beam without focusing, and the depth of focus was quite large. These results show the good performance of this lens and the system. Thereupon we have demonstrated the performance of this test bed for high resolution focusing of VCN-SANS for a well-studied softmatter sample; a deuterium oxide solution of Pluronic F127, an (PEO){sub 100}(PPO){sub 65}(PEO){sub 100} tri-block copolymer in deuterium oxide. The results of the focusing experiment and the focusing VCN-SANS are presented.

  14. The Value of Distributed Solar Electric Generation to San Antonio

    SciTech Connect (OSTI)

    Jones, Nic; Norris, Ben; Meyer, Lisa

    2013-02-14

    This report presents an analysis of value provided by grid-connected, distributed PV in San Antonio from a utility perspective. The study quantified six value components, summarized in Table ES- 1. These components represent the benefits that accrue to the utility, CPS Energy, in accepting solar onto the grid. This analysis does not treat the compensation of value, policy objectives, or cost-effectiveness from the retail consumer perspective.

  15. City of San Antonio, Texas Better Buildings Program

    SciTech Connect (OSTI)

    Meyer, Liza C.; Hammer, Mary C.

    2014-06-30

    The San Antonio Better Buildings Program is a unified single-point-of-service energy efficiency delivery mechanism targeting residential, commercial, institutional, industrial and public buildings. This comprehensive and replicable energy efficiency program is designed to be an effective demand side management initiative to provide a seamless process for program participants to have turn-key access to expert analysis, support and incentives to improve the performance of their in-place energy using systems, while reducing electrical energy use and demand.

  16. California Nuclear Profile - San Onofre Nuclear Generating Station

    U.S. Energy Information Administration (EIA) Indexed Site

    San Onofre Nuclear Generating Station" "Unit","Summer capacity (mw)","Net generation (thousand mwh)","Summer capacity factor (percent)","Type","Commercial operation date","License expiration date" 2,"1,070","6,989",74.6,"PWR","application/vnd.ms-excel","application/vnd.ms-excel"

  17. Microbial diversity in restored wetlands of San Francisco Bay

    SciTech Connect (OSTI)

    Theroux, Susanna; Hartman, Wyatt; He, Shaomei; Tringe, Susannah

    2013-12-09

    Wetland ecosystems may serve as either a source or a sink for atmospheric carbon and greenhouse gases. This delicate carbon balance is influenced by the activity of belowground microbial communities that return carbon dioxide and methane to the atmosphere. Wetland restoration efforts in the San Francisco Bay-Delta region may help to reverse land subsidence and possibly increase carbon storage in soils. However, the effects of wetland restoration on microbial communities, which mediate soil metabolic activity and carbon cycling, are poorly studied. In an effort to better understand the underlying factors which shape the balance of carbon flux in wetland soils, we targeted the microbial communities in a suite of restored and historic wetlands in the San Francisco Bay-Delta region. Using DNA and RNA sequencing, coupled with greenhouse gas monitoring, we profiled the diversity and metabolic potential of the wetland soil microbial communities along biogeochemical and wetland age gradients. Our results show relationships among geochemical gradients, availability of electron acceptors, and microbial community composition. Our study provides the first genomic glimpse into microbial populations in natural and restored wetlands of the San Francisco Bay-Delta region and provides a valuable benchmark for future studies.

  18. A User's Manual for MASH V1.5 - A Monte Carlo Adjoint Shielding Code System

    SciTech Connect (OSTI)

    C. O. Slater; J. M. Barnes; J. O. Johnson; J.D. Drischler

    1998-10-01

    The Monte Carlo ~djoint ~ielding Code System, MASH, calculates neutron and gamma- ray environments and radiation protection factors for armored military vehicles, structures, trenches, and other shielding configurations by coupling a forward discrete ordinates air- over-ground transport calculation with an adjoint Monte Carlo treatment of the shielding geometry. Efficiency and optimum use of computer time are emphasized. The code system includes the GRTUNCL and DORT codes for air-over-ground transport calculations, the MORSE code with the GIFT5 combinatorial geometry package for adjoint shielding calculations, and several peripheral codes that perform the required data preparations, transformations, and coupling functions. The current version, MASH v 1.5, is the successor to the original MASH v 1.0 code system initially developed at Oak Ridge National Laboratory (ORNL). The discrete ordinates calculation determines the fluence on a coupling surface surrounding the shielding geometry due to an external neutron/gamma-ray source. The Monte Carlo calculation determines the effectiveness of the fluence at that surface in causing a response in a detector within the shielding geometry, i.e., the "dose importance" of the coupling surface fluence. A coupling code folds the fluence together with the dose importance, giving the desired dose response. The coupling code can determine the dose response as a function of the shielding geometry orientation relative to the source, distance from the source, and energy response of the detector. This user's manual includes a short description of each code, the input required to execute the code along with some helpful input data notes, and a representative sample problem.

  19. Quantum Monte Carlo methods and lithium cluster properties. [Atomic clusters

    SciTech Connect (OSTI)

    Owen, R.K.

    1990-12-01

    Properties of small lithium clusters with sizes ranging from n = 1 to 5 atoms were investigated using quantum Monte Carlo (QMC) methods. Cluster geometries were found from complete active space self consistent field (CASSCF) calculations. A detailed development of the QMC method leading to the variational QMC (V-QMC) and diffusion QMC (D-QMC) methods is shown. The many-body aspect of electron correlation is introduced into the QMC importance sampling electron-electron correlation functions by using density dependent parameters, and are shown to increase the amount of correlation energy obtained in V-QMC calculations. A detailed analysis of D-QMC time-step bias is made and is found to be at least linear with respect to the time-step. The D-QMC calculations determined the lithium cluster ionization potentials to be 0.1982(14) (0.1981), 0.1895(9) (0.1874(4)), 0.1530(34) (0.1599(73)), 0.1664(37) (0.1724(110)), 0.1613(43) (0.1675(110)) Hartrees for lithium clusters n = 1 through 5, respectively; in good agreement with experimental results shown in the brackets. Also, the binding energies per atom was computed to be 0.0177(8) (0.0203(12)), 0.0188(10) (0.0220(21)), 0.0247(8) (0.0310(12)), 0.0253(8) (0.0351(8)) Hartrees for lithium clusters n = 2 through 5, respectively. The lithium cluster one-electron density is shown to have charge concentrations corresponding to nonnuclear attractors. The overall shape of the electronic charge density also bears a remarkable similarity with the anisotropic harmonic oscillator model shape for the given number of valence electrons.

  20. Quantum Monte Carlo methods and lithium cluster properties

    SciTech Connect (OSTI)

    Owen, R.K.

    1990-12-01

    Properties of small lithium clusters with sizes ranging from n = 1 to 5 atoms were investigated using quantum Monte Carlo (QMC) methods. Cluster geometries were found from complete active space self consistent field (CASSCF) calculations. A detailed development of the QMC method leading to the variational QMC (V-QMC) and diffusion QMC (D-QMC) methods is shown. The many-body aspect of electron correlation is introduced into the QMC importance sampling electron-electron correlation functions by using density dependent parameters, and are shown to increase the amount of correlation energy obtained in V-QMC calculations. A detailed analysis of D-QMC time-step bias is made and is found to be at least linear with respect to the time-step. The D-QMC calculations determined the lithium cluster ionization potentials to be 0.1982(14) [0.1981], 0.1895(9) [0.1874(4)], 0.1530(34) [0.1599(73)], 0.1664(37) [0.1724(110)], 0.1613(43) [0.1675(110)] Hartrees for lithium clusters n = 1 through 5, respectively; in good agreement with experimental results shown in the brackets. Also, the binding energies per atom was computed to be 0.0177(8) [0.0203(12)], 0.0188(10) [0.0220(21)], 0.0247(8) [0.0310(12)], 0.0253(8) [0.0351(8)] Hartrees for lithium clusters n = 2 through 5, respectively. The lithium cluster one-electron density is shown to have charge concentrations corresponding to nonnuclear attractors. The overall shape of the electronic charge density also bears a remarkable similarity with the anisotropic harmonic oscillator model shape for the given number of valence electrons.

  1. EIS-0458: First Solar Topaz Solar Farm Project in San Luis Obispo County,

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    CA | Department of Energy 8: First Solar Topaz Solar Farm Project in San Luis Obispo County, CA EIS-0458: First Solar Topaz Solar Farm Project in San Luis Obispo County, CA Documents Available for Download August 12, 2011 EIS-0458: Final Environmental Impact Statement Proposed Loan Guarantee to Support Construction and Startup of the Topaz Solar Farm, San Luis Obispo County, CA August 12, 2011 EIS-0458: DOE Notice of Availability of the Final Environmental Impact Statement Proposed Loan

  2. DOE - Office of Legacy Management -- General Electric Co - San Jose - CA 13

    Office of Legacy Management (LM)

    San Jose - CA 13 FUSRAP Considered Sites Site: General Electric Co. - San Jose (CA.13 ) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: San Jose , California CA.13-1 Evaluation Year: 1995 CA.13-2 Site Operations: Fabricated uranium metal. CA.13-1 Site Disposition: Eliminated - No Authority - NRC licensed CA.13-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium CA.13-1 Radiological Survey(s): No Site

  3. Building America Whole-House Solutions for New Homes: Imagine Homes, San

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Antonio, Texas | Department of Energy Imagine Homes, San Antonio, Texas Building America Whole-House Solutions for New Homes: Imagine Homes, San Antonio, Texas Case study of Imagine Homes, who worked with the Building America research partner IBACOS to build HERS-52 homes with spray foam-insulated attics and central fan-integrated supply ventilation. Imagine Homes: Stillwater Ranch - San Antonio, TX (662.1 KB) More Documents & Publications Building America Whole-House Solutions for New

  4. CX-100644 Categorical Exclusion Determination | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    4 Categorical Exclusion Determination CX-100644 Categorical Exclusion Determination San Diego Tribal Energy Collaborative Award Number: DE-IE0000043 CX(s) Applied: A9, A11 Office of Indian Energy Date: 6/6/2016 Location(s): CA Office(s): Golden Field Office The U.S. Department of Energy (DOE) is proposing to provide federal funding to the San Pasqual Band of Indians to deploy clean energy systems in order to achieve the long-term goals of energy self-sufficiency, environmental protection, and

  5. Monte Carlo analysis of neutron slowing-down-time spectrometer for fast reactor spent fuel assay

    SciTech Connect (OSTI)

    Chen, Jianwei; Lineberry, Michael

    2007-07-01

    Using the neutron slowing-down-time method as a nondestructive assay tool to improve input material accountancy for fast reactor spent fuel reprocessing is under investigation at Idaho State University. Monte Carlo analyses were performed to simulate the neutron slowing down process in different slowing down spectrometers, namely, lead and graphite, and determine their main parameters. {sup 238}U threshold fission chamber response was simulated in the Monte Carlo model to represent the spent fuel assay signals, the signature (fission/time) signals of {sup 235}U, {sup 239}Pu, and {sup 241}Pu were simulated as a convolution of fission cross sections and neutron flux inside the spent fuel. {sup 238}U detector signals were analyzed using linear regression model based on the signatures of fissile materials in the spent fuel to determine weight fractions of fissile materials in the Advanced Burner Test Reactor spent fuel. The preliminary results show even though lead spectrometer showed a better assay performance than graphite, graphite spectrometer could accurately determine weight fractions of {sup 239}Pu and {sup 241}Pu given proper assay energy range were chosen. (authors)

  6. U.S. Postal Service General Mail Facility, San Diego, California |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Postal Service General Mail Facility, San Diego, California U.S. Postal Service General Mail Facility, San Diego, California Overview The U.S. Postal Service (USPS) was the first Federal agency to award a shared energy savings (SES) contract (now known as energy savings performance contracts). The contract was awarded to the Co-Energy Group in December 1987 for a lighting retrofit at the USPS General Mail Facility in San Diego, California. The local utility, San Diego

  7. Field Mapping At San Emidio Desert Area (DOE GTP) | Open Energy...

    Open Energy Info (EERE)

    Emidio Desert Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At San Emidio Desert Area (DOE GTP) Exploration...

  8. Ground Gravity Survey At San Emidio Desert Area (DOE GTP) | Open...

    Open Energy Info (EERE)

    Emidio Desert Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At San Emidio Desert Area (DOE GTP)...

  9. Text-Alternative Version: San Diego R&D Workshop Video

    Broader source: Energy.gov [DOE]

    Following is a text version of Jim Brodrick's opening presentation video from the February 2011 DOE SSL R&D Workshop in San Diego, California.

  10. Microsoft PowerPoint - SS2_8H_NERC_SANS_Final.ppt

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... Corporate ICCP Peer Utility Modem Pool I II III IV Sensor Campus Sensors 10 SANS SCADA ... Trivial File Transfer Protocol (TFTP) RFC 783 Sun Microsystems Network File System ...

  11. San Diego Hero Alliance: Community-Based Social Marketing Pilot Program

    Broader source: Energy.gov [DOE]

    Presents an overview of the California Center for Sustainable Energy's community-based social marketing strategies to promote home energy upgrades to San Diego military and veteran homeowners

  12. San Diego Solar Panels Generate Clean Electricity Along with Clean Water

    Office of Energy Efficiency and Renewable Energy (EERE)

    Thanks to San Diego's ambitious solar energy program, the Otay Water Treatment Plant may soon be able to do that with net zero electricity consumption.

  13. 3D Model of the San Emidio Geothermal Area (Dataset) | Data Explorer

    Office of Scientific and Technical Information (OSTI)

    Country of Publication: United States Availability: GDRHelp@EE.Doe.Gov Language: English Subject: 15 Geothermal Energy geothermal; San Emidio Geothermal Area; 3D Model Dataset File ...

  14. QER Public Meeting in San Francisco, CA: The Water-Energy Nexus |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy San Francisco, CA: The Water-Energy Nexus QER Public Meeting in San Francisco, CA: The Water-Energy Nexus Meeting Date and Location June 19, 2014 - 9:00 A.M. PST San Francisco City Hall, Mayor's Conference Room (Room 201) 1 Dr. Carlton B. Goodlett Place San Francisco, CA 94102 Meeting Information Agenda: The Water-Energy Nexus Briefing Memo (See link below to download PDF) Full Meeting Transcript1 (See link below to download PDF) Meeting Summary (See link below to

  15. U.S. Postal Service General Mail Facility, San Diego, California |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy U.S. Postal Service General Mail Facility, San Diego, California U.S. Postal Service General Mail Facility, San Diego, California Overview The U.S. Postal Service (USPS) was the first Federal agency to award a shared energy savings (SES) contract (now known as energy savings performance contracts). The contract was awarded to the Co-Energy Group in December 1987 for a lighting retrofit at the USPS General Mail Facility in San Diego, California. The local utility, San

  16. MHK Projects/Green Wave San Luis Obispo | Open Energy Information

    Open Energy Info (EERE)

    San Luis Obispo < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","z...

  17. Rock Sampling At San Juan Volcanic Field Area (Larson & Jr, 1986...

    Open Energy Info (EERE)

    Juan Volcanic Field Area (Larson & Jr, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Rock Sampling At San Juan Volcanic Field Area...

  18. Data Processing for the SNS EQ-SANS Diffractometer

    SciTech Connect (OSTI)

    Zhao, Jinkui

    2011-01-01

    The scattering data on the Extended Q-Range Small Angle Scattering Diffractometer at the Spallation Neutron Source are stored as neutron events. Each event has two parts: the time of fight of the detected neutron, and an identifier for the neutron's location on the detector. In addition, each event is associated with the source pulse from which the neutron is originated. Due to the high neutron beam intensity at the SNS, the size of the stored data files can easily exceed several Gigabytes. Processing and reducing these data can be very time consuming. The standard way of handling the data at the SNS has been to first transform the data into histograms. On the EQ-SANS, these histograms are further processed into intensity I vs. neutron momentum transfer Q files, I(Q). For a large data, the whole process can take many minutes to hours to complete, which severely limits the turnaround time of an experiment. Experimenters often want to reduce the data quickly and depending on the result, make decisions on the setup of next measurements. They may also need to reduce the data using different inputs and conditions. In this work, we present the implementation of a fast data processing scheme for the EQ-SANS diffractometer. The scattering data are processed directly from neutron event files into I(Q) or other desired formats, greatly reducing the needed computation time. Further speed gains are obtained by the implementation of parallel computing under the Message Passing Interface framework. Most data on the EQ-SANS can now be handled in mere seconds. The process is highly automated. All relevant experimental information that is stored in instrument configuration files are read and processed. In addition, the new implementation is highly flexible. All the data corrections and handlings can be controlled transparently through user inputs. Finally, software implementation enables the slicing of neutron event, which can be used for the study of time dependent phenomena.

  19. California - San Joaquin Basin Onshore Crude Oil + Lease Condensate Proved

    U.S. Energy Information Administration (EIA) Indexed Site

    Reserves (Million Barrels) Crude Oil + Lease Condensate Proved Reserves (Million Barrels) California - San Joaquin Basin Onshore Crude Oil + Lease Condensate Proved Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 2,095 2010's 2,037 1,950 1,893 1,813 1,838 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date:

  20. California - San Joaquin Basin Onshore Nonassociated Natural Gas, Wet After

    U.S. Energy Information Administration (EIA) Indexed Site

    Lease Separation, Proved Reserves (Billion Cubic Feet) Nonassociated Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) California - San Joaquin Basin Onshore Nonassociated Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 1,784 1980's 1,721 1,566 1,593 1,556 1,538 1,642 1,398 1,196 1,086 972 1990's 901 885 773 749 744 679 560 518 445 336 2000's 748 836

  1. PV Validation and Bankability Workshop: San Jose, California

    SciTech Connect (OSTI)

    Granata, J.; Howard, J.

    2011-12-01

    This report is a collaboration between Sandia National Laboratories, the National Renewable Energy Laboratory, and the Florida Solar Energy Center (FSEC). The report provides feedback from the U.S. Department of Energy's (DOE) Solar Program PV Validation and Bankability Workshop in San Jose, California on August 31, 2011. It focuses on the current state of PV in the United States, private funding to fund U.S. PV industry growth, roles and functions of the regional test center program, and ways to improve the current validation and bankability practices.

  2. Integrated characterization of carbonate ramp reservoirs using Permian San Andres Formation outcrop analogs

    SciTech Connect (OSTI)

    Kerans, C.; Lucia, F.J.; Senger, R.K. )

    1994-02-01

    The San Andres Formation (Permian, Guadalupian) of the Permian basin is representative of carbonate ramp reservoirs in that it has highly stratified character, complex facies and permeability structure, and generally low recovery efficiencies of 30% of original oil in place. The approach used here to describe carbonate ramp reservoirs such as the San Andres Formation produces detailed reservoir models based on integration of sequence stratigraphic analysis, petrophysical quantification through definition of rock fabric flow units, and fluid flow simulation. Synthesis of these subdisciplines clarifies which aspects of the geologic-petrophysical model are most significant in predicting reservoir performance and ultimately in understanding the location of remaining oil saturation. On the basis of sequence stratigraphic analysis, three scales of cyclicity are recognized: depositional sequences, high-frequency sequences, and cycles. Two-dimensional black oil fluid flow models illustrate that (1) major differences in sweep efficiency and fluid flow performance are predicted when linear interwell interpolations are compared with actual interwell-scale geologic structure as determined by outcrop geologic and petrophysical mapping, (2) an understanding of static geologic/petrophysical conditions provides only a partial understanding of reservoir performance defined by the interaction of these static properties and dynamic properties of fluid flow interaction within the flow unit architecture, and (3) because of the orderly distribution of high- and low-permeability facies within cycle stacks of high-frequency sequences, this larger scale of geologic description can give a reasonable first-order approximation of fluid flow patterns and early breakthrough. 87 refs., 33 figs., 1 tab.

  3. Bayesian Monte Carlo Method for Nuclear Data Evaluation

    SciTech Connect (OSTI)

    Koning, A.J.

    2015-01-15

    A Bayesian Monte Carlo method is outlined which allows a systematic evaluation of nuclear reactions using TALYS. The result will be either an EXFOR-weighted covariance matrix or a collection of random files, each accompanied by an experiment based weight.

  4. Monte Carlo event generators for hadron-hadron collisions

    SciTech Connect (OSTI)

    Knowles, I.G.; Protopopescu, S.D.

    1993-06-01

    A brief review of Monte Carlo event generators for simulating hadron-hadron collisions is presented. Particular emphasis is placed on comparisons of the approaches used to describe physics elements and identifying their relative merits and weaknesses. This review summarizes a more detailed report.

  5. EIS-0477: San Juan Basin Energy Connect Project, San Juan County, New Mexico and La Plata County, Colorado

    Broader source: Energy.gov [DOE]

    The Department of the Interior’s Bureau of Land Management is preparing an EIS to evaluate the potential environmental impacts of a proposal to construct a 230-kilovolt transmission line from the Farmington area in northwest New Mexico to Ignacio, Colorado, to relieve transmission constraints, serve new loads, and offer economic development through renewable energy development in the San Juan Basin. DOE’s Western Area Power Administration is a cooperating agency; the proposed transmission line would require an interconnection with Western's Shiprock Substation, near Farmington, and a new Three Rivers Substation on Western's reserved lands.

  6. Littoral processes: US Coast Guard Station, Fort Point, San Francisco

    SciTech Connect (OSTI)

    Ecker, R.M.; Whelan, G.

    1983-10-01

    The US Coast Guard Station, Fort Point is located three-quarters of a nautical mile southeast of the Golden Gate Strait, the entrance to San Francisco Bay. The existing storm wave conditions at Fort Point Station pier make it extremely dangerous for the SAR crews to get on and off the Motor Life Boats at times requiring the vessels to be moored at the San Francisco Yacht Harbor about 1.5 miles east of the Fort Point Station. To mitigate these harsh working conditions the US Coast Guard is considering the feasibility of constructing suitable all-weather moorings for the three Motor Life Boats at the Fort Point Station to enable unimpeded SAR operations, to provide safe working conditions for Coast Guard small boat crews, and to improve small boat maintenance conditions at Fort Point Station. The purpose of this report is to identify, analyze and evaluate physical environmental factors that could affect all-weather moorings siting, configuration and entrance location, as well as potential post construction alterations to littoral conditions and processes. This report includes a description of the site, description of pertinent littoral processes, evaluation of how these processes could affect construction of all-weather moorings, and discussion of design considerations, as well as mitigation measures to minimize potential adverse effects to the physical environment. 19 references, 27 figures, 26 tables.

  7. SANS Investigations of CO2 Adsorption in Microporous Carbon

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Bahadur, Jitendra; Melnichenko, Yuri B.; He, Lilin; Contescu, Cristian I.; Gallego, Nidia C.; Carmichael, Justin R.

    2015-08-07

    The high pressure adsorption behavior of CO2 at T = 296 K in microporous carbon was investigated by small-angle neutron scattering (SANS) technique. A strong densification of CO2 in micropores accompanied by non-monotonic adsorption-induced pore deformation was observed. The density of confined CO2 increases rapidly with pressure and reaches the liquid –like density at 20 bar, which corresponds to the relative pressure of P/Psat ~0.3. At P > 20 bar density of confined CO2 increases slowly approaching a plateau at higher pressure. The size of micropores first increases with pressure, reaches a maximum at 20 bar,more » and then decreases with pressure. A complementary SANS experiment conducted on the same microporous carbon saturated with neutron-transparent and non-adsorbing inert gas argon shows no deformation of micropores at pressures up to ~200 bars. This result demonstrates that the observed deformation of micropores in CO2 is an adsorption-induced phenomenon, caused by the solvation pressure - induced strain and strong densification of confined CO2 .« less

  8. Water Pollution Control Plant Solar Site Evaluation: San José

    Broader source: Energy.gov [DOE]

    This report describes the findings of a solar site evaluation conducted at the San Jose/Santa Clara Water Pollution Control Plant (Site) in the City of San Jose, California (City). This evaluation was conducted as part of a larger study to assess solar potential at multiple public facilities within the City.

  9. Monte-Carlo simulation of noise in hard X-ray Transmission Crystal...

    Office of Scientific and Technical Information (OSTI)

    Monte-Carlo simulation of noise in hard X-ray Transmission Crystal Spectrometers: ... Title: Monte-Carlo simulation of noise in hard X-ray Transmission Crystal Spectrometers: ...

  10. DOE Science Showcase - Monte Carlo Methods | OSTI, US Dept of Energy Office

    Office of Scientific and Technical Information (OSTI)

    of Scientific and Technical Information Monte Carlo Methods Monte Carlo calculation methods are algorithms for solving various kinds of computational problems by using (pseudo)random numbers. Developed in the 1940s during the Manhattan Project, the Monte Carlo method signified a radical change in how scientists solved problems. Learn about the ways these methods are used in DOE's research endeavors today in "Monte Carlo Methods" by Dr. William Watson, Physicist, OSTI staff. Image

  11. Direct Monte Carlo simulation of the chemical equilibrium composition of detonation products

    SciTech Connect (OSTI)

    Shaw, M.S.

    1993-06-01

    A new Monte Carlo simulation method has been developed by the author which gives the equilibrium chemical composition of a molecular fluid directly. The usual NPT ensemble (isothermal-isobaric) is implemented with N being the number of atoms instead of molecules. Changes in chemical composition are treated as correlated spatial moves of atoms. Given the interaction potentials between molecular products, ``exact`` EOS points including the equilibrium chemical composition can be determined from the simulations. This method is applied to detonation products at conditions in the region near the Chapman- Jouget state. For the example of NO, it is shown that the CJ detonation velocity can be determined to a few meters per second. A rather small change in cross potentials is shown to shift the chemical equilibrium and the CJ conditions significantly.

  12. CX-001765: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    San Ramon Light-Emitting Diode Street Light ConversionCX(s) Applied: B5.1Date: 04/22/2010Location(s): San Ramon, CaliforniaOffice(s): Energy Efficiency and Renewable Energy

  13. CX-001391: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    San Gabriel Energy Efficiency ProjectCX(s) Applied: A9, B5.1Date: 04/07/2010Location(s): San Gabriel, CaliforniaOffice(s): Energy Efficiency and Renewable Energy

  14. CX-000254: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    California County San BernardinoCX(s) Applied: A9, A11, B5.1Date: 12/20/2009Location(s): San Bernardino County, CaliforniaOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

  15. CX-003388: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    San Francisco Electric Vehicle InitiativeCX(s) Applied: A9, A11, B5.1Date: 08/11/2010Location(s): San Francisco, CaliforniaOffice(s): Energy Efficiency and Renewable Energy, National Energy Technology Laboratory

  16. CX-003187: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Pueblo of San IdelfonsoCX(s) Applied: B5.1Date: 07/22/2010Location(s): San Idelfonso, New MexicoOffice(s): Energy Efficiency and Renewable Energy

  17. CX-001390: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    San Dimas Energy Efficiency ProjectsCX(s) Applied: A9, B5.1Date: 04/09/2010Location(s): San Dimas, CaliforniaOffice(s): Energy Efficiency and Renewable Energy

  18. CX-000252: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    California City San JoseCX(s) Applied: A9, A11, B5.1Date: 12/20/2009Location(s): San Jose, CaliforniaOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

  19. CX-003848: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    San Diego Center for Algae BiotechnologyCX(s) Applied: B3.6Date: 08/30/2010Location(s): San Diego, CaliforniaOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

  20. MCViNE- An object oriented Monte Carlo neutron ray tracing simulation package

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Lin, J. Y. Y.; Smith, Hillary L.; Granroth, Garrett E.; Abernathy, Douglas L.; Lumsden, Mark D.; Winn, Barry L.; Aczel, Adam A.; Aivazis, Michael; Fultz, Brent

    2015-11-28

    MCViNE (Monte-Carlo VIrtual Neutron Experiment) is an open-source Monte Carlo (MC) neutron ray-tracing software for performing computer modeling and simulations that mirror real neutron scattering experiments. We exploited the close similarity between how instrument components are designed and operated and how such components can be modeled in software. For example we used object oriented programming concepts for representing neutron scatterers and detector systems, and recursive algorithms for implementing multiple scattering. Combining these features together in MCViNE allows one to handle sophisticated neutron scattering problems in modern instruments, including, for example, neutron detection by complex detector systems, and single and multiplemore » scattering events in a variety of samples and sample environments. In addition, MCViNE can use simulation components from linear-chain-based MC ray tracing packages which facilitates porting instrument models from those codes. Furthermore it allows for components written solely in Python, which expedites prototyping of new components. These developments have enabled detailed simulations of neutron scattering experiments, with non-trivial samples, for time-of-flight inelastic instruments at the Spallation Neutron Source. Examples of such simulations for powder and single-crystal samples with various scattering kernels, including kernels for phonon and magnon scattering, are presented. As a result, with simulations that closely reproduce experimental results, scattering mechanisms can be turned on and off to determine how they contribute to the measured scattering intensities, improving our understanding of the underlying physics.« less

  1. MCViNE- An object oriented Monte Carlo neutron ray tracing simulation package

    SciTech Connect (OSTI)

    Lin, J. Y. Y.; Smith, Hillary L.; Granroth, Garrett E.; Abernathy, Douglas L.; Lumsden, Mark D.; Winn, Barry L.; Aczel, Adam A.; Aivazis, Michael; Fultz, Brent

    2015-11-28

    MCViNE (Monte-Carlo VIrtual Neutron Experiment) is an open-source Monte Carlo (MC) neutron ray-tracing software for performing computer modeling and simulations that mirror real neutron scattering experiments. We exploited the close similarity between how instrument components are designed and operated and how such components can be modeled in software. For example we used object oriented programming concepts for representing neutron scatterers and detector systems, and recursive algorithms for implementing multiple scattering. Combining these features together in MCViNE allows one to handle sophisticated neutron scattering problems in modern instruments, including, for example, neutron detection by complex detector systems, and single and multiple scattering events in a variety of samples and sample environments. In addition, MCViNE can use simulation components from linear-chain-based MC ray tracing packages which facilitates porting instrument models from those codes. Furthermore it allows for components written solely in Python, which expedites prototyping of new components. These developments have enabled detailed simulations of neutron scattering experiments, with non-trivial samples, for time-of-flight inelastic instruments at the Spallation Neutron Source. Examples of such simulations for powder and single-crystal samples with various scattering kernels, including kernels for phonon and magnon scattering, are presented. As a result, with simulations that closely reproduce experimental results, scattering mechanisms can be turned on and off to determine how they contribute to the measured scattering intensities, improving our understanding of the underlying physics.

  2. California - San Joaquin Basin Onshore Associated-Dissolved Natural Gas,

    U.S. Energy Information Administration (EIA) Indexed Site

    Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) California - San Joaquin Basin Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 2,253 1980's 2,713 2,664 2,465 2,408 2,270 2,074 2,006 2,033 1,947 1,927 1990's 1,874 1,818 1,738 1,676 1,386

  3. California - San Joaquin Basin Onshore Dry Natural Gas Expected Future

    U.S. Energy Information Administration (EIA) Indexed Site

    Production (Billion Cubic Feet) Dry Natural Gas Expected Future Production (Billion Cubic Feet) California - San Joaquin Basin Onshore Dry Natural Gas Expected Future Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 3,784 3,960 3,941 1980's 4,344 4,163 3,901 3,819 3,685 3,574 3,277 3,102 2,912 2,784 1990's 2,670 2,614 2,415 2,327 2,044 1,920 1,768 1,912 1,945 1,951 2000's 2,331 2,232 2,102 2,013 2,185 2,694 2,345 2,309 2,128

  4. California - San Joaquin Basin Onshore Natural Gas, Wet After Lease

    U.S. Energy Information Administration (EIA) Indexed Site

    Separation Proved Reserves (Billion Cubic Feet) Natural Gas, Wet After Lease Separation Proved Reserves (Billion Cubic Feet) California - San Joaquin Basin Onshore Natural Gas, Wet After Lease Separation Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 4,037 1980's 4,434 4,230 4,058 3,964 3,808 3,716 3,404 3,229 3,033 2,899 1990's 2,775 2,703 2,511 2,425 2,130 2,018 1,864 2,012 2,016 2,021 2000's 2,413 2,298 2,190 2,116

  5. 3D Model of the San Emidio Geothermal Area

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    James E. Faulds

    The San Emidio geothermal system is characterized by a left-step in a west-dipping normal fault system that bounds the western side of the Lake Range. The 3D geologic model consists of 5 geologic units and 55 faults. Overlying Jurrassic-Triassic metasedimentary basement is a ~500 m-1000 m thick section of the Miocene lower Pyramid sequence, pre- syn-extensional Quaternary sedimentary rocks and post-extensional Quaternary rocks. 15-30 eastward dip of the stratigraphy is controlled by the predominant west-dipping fault set. Both geothermal production and injection are concentrated north of the step over in an area of closely spaced west dipping normal faults.

  6. San Antonio spurs increase in solar energy production

    Broader source: Energy.gov [DOE]

    They might always remember the Alamo, but such tourist attractions aren’t the only thing spurring growth in San Antonio — this Texas city is incorporating solar power into its diversified energy portfolio. In June, CPS Energy — the country’s largest municipally owned energy company (meaning profits contribute to the city’s annual budget) — signed a 20-year Power Purchase Agreement to develop a solar project using SunCatcher power systems. These large, concave bowls look like large satellite dishes. Not only will these systems help power Texas, but also they are designed to take advantage of tried-and-true automotive supply chains in the U.S. Rust Belt, using stamped sheet metal, which could help bring new life to manufacturers there.

  7. 3D Model of the San Emidio Geothermal Area

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    James E. Faulds

    2013-12-31

    The San Emidio geothermal system is characterized by a left-step in a west-dipping normal fault system that bounds the western side of the Lake Range. The 3D geologic model consists of 5 geologic units and 55 faults. Overlying Jurrassic-Triassic metasedimentary basement is a ~500 m-1000 m thick section of the Miocene lower Pyramid sequence, pre- syn-extensional Quaternary sedimentary rocks and post-extensional Quaternary rocks. 15-30º eastward dip of the stratigraphy is controlled by the predominant west-dipping fault set. Both geothermal production and injection are concentrated north of the step over in an area of closely spaced west dipping normal faults.

  8. 3D Model of the San Emidio Geothermal Area

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    James E. Faulds

    2013-12-31

    The San Emidio geothermal system is characterized by a left-step in a west-dipping normal fault system that bounds the western side of the Lake Range. The 3D geologic model consists of 5 geologic units and 55 faults. Overlying Jurrassic-Triassic metasedimentary basement is a ~500 m-1000 m thick section of the Miocene lower Pyramid sequence, pre- syn-extensional Quaternary sedimentary rocks and post-extensional Quaternary rocks. 15-30 eastward dip of the stratigraphy is controlled by the predominant west-dipping fault set. Both geothermal production and injection are concentrated north of the step over in an area of closely spaced west dipping normal faults.

  9. Hybrid energy system cost analysis: San Nicolas Island, California

    SciTech Connect (OSTI)

    Olsen, T.L.; McKenna, E.

    1996-07-01

    This report analyzes the local wind resource and evaluates the costs and benefits of supplementing the current diesel-powered energy system on San Nicolas Island, California (SNI), with wind turbines. In Section 2.0 the SNI site, naval operations, and current energy system are described, as are the data collection and analysis procedures. Section 3.0 summarizes the wind resource data and analyses that were presented in NREL/TP 442-20231. Sections 4.0 and 5.0 present the conceptual design and cost analysis of a hybrid wind and diesel energy system on SNI, with conclusions following in Section 6. Appendix A presents summary pages of the hybrid system spreadsheet model, and Appendix B contains input and output files for the HYBRID2 program.

  10. South Belridge fields, Borderland basin, U. S. , San Joaquin Valley

    SciTech Connect (OSTI)

    Miller, D.D. ); McPherson, J.G. )

    1991-03-01

    South Belridge is a giant field in the west San Joaquin Valley, Kern County. Cumulative field production is approximately 700 MMBO and 220 BCFG, with remaining recoverable reserves of approximately 500 MMBO. The daily production is nearly 180 MBO from over 6100 active wells. The focus of current field development and production is the shallow Tulare reservoir. Additional probable diatomite reserves have been conservatively estimated at 550 MMBO and 550 BCFG. South Belridge field has two principal reservoir horizons; the Mio-Pliocene Belridge diatomite of the upper Monterey Formation, and the overlying Plio-Pleistocene Tulare Formation. The field lies on the crest of a large southeast-plunging anticline, sub-parallel to the nearby San Andreas fault system. The reservoir trap in both the Tulare and diatomite reservoir horizons is a combination of structure, stratigraphic factors, and tar seals; the presumed source for the oil is the deeper Monterey Formation. The diatomite reservoir produces light oil (20-32{degree} API gravity) form deep-marine diatomite and diatomaceous shales with extremely high porosity (average 60%) and low permeability (average 1 md). In contrast, the shallow ({lt}1000 ft (305 m) deep) overlying Tulare reservoir produces heavy oil (13-14{degree} API gravity) from unconsolidated, arkosic, fluviodeltaic sands of high porosity (average 35%) and permeability (average 3000 md). The depositional model is that of a generally prograding fluviodeltaic system sourced in the nearby basin-margin highlands. More than 6000 closely spaced, shallow wells are the key to steamflood production from hundreds of layered and laterally discontinuous reservoir sands which create laterally and vertically discontinuous reservoir flow units.

  11. Slip and Dilation Tendency Analysis of the San Emidio Geothermal Area

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Faulds, James E.

    2013-12-31

    , 2010; Davatzes and Hickman, 2006; Blake and Davatzes 2011; Blake and Davatzes, 2012; Moeck et al., 2010; Moos and Ronne, 2010 and Reinecker et al., 2005) as well as local stress information if applicable. For faults within these focus systems we applied either a normal faulting stress regime where the vertical stress (sv) is larger than the maximum horizontal stress (shmax) which is larger than the minimum horizontal stress (sv>shmax>shmin) or strike-slip faulting stress regime where the maximum horizontal stress (shmax) is larger than the vertical stress (sv) which is larger than the minimum horizontal stress (shmax >sv>shmin) depending on the general tectonic province of the system. Based on visual inspection of the limited stress magnitude data in the Great Basin we used magnitudes such that shmin/shmax = .527 and shmin/sv= .46, which are consistent with complete and partial stress field determinations from Desert Peak, Coso, the Fallon area and Dixie valley (Hickman et al., 2000; Hickman et al., 1998 Robertson-Tait et al., 2004; Hickman and Davatzes, 2011; Davatzes and Hickman, 2006; Blake and Davatzes 2011; Blake and Davatzes, 2012). Slip and dilation tendency for the San Emidio geothermal field was calculated based on the faults mapped Tuscarora area (Rhodes, 2011). The San Emidio area lies in the Basin and Range Province, as such we applied a normal faulting stress regime to the San Emidio area faults, with a minimum horizontal stress direction oriented 115, based on inspection of local and regional stress determinations, as explained above. This is consistent with the shmin determined through inversion of fault data by Rhodes (2011). Under these stress conditions north-northeast striking, steeply dipping fault segments have the highest dilation tendency, while north-northeast striking 60° dipping fault segments have the highest tendency to slip. Interesting, the San Emidio geothermal field lies in an area of primarily north striking faults, which...

  12. The Monte Carlo Independent Column Approximation Model Intercomparison

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Project (McMIP) The Monte Carlo Independent Column Approximation Model Intercomparison Project (McMIP) Barker, Howard Meteorological Service of Canada Cole, Jason Meteorological Service of Canada Raisanen, Petri Finnish Meteorological Institute Pincus, Robert NOAA-CIRES Climate Diagnostics Center Morcrette, Jean-Jacques European Centre for Medium-Range Weather Forecasts Li, Jiangnan Canadian Center for Climate Modelling Stephens, Graeme Colorado State University Vaillancourt, Paul

  13. Quantum Monte Carlo Calculations in Nuclear Theory | Argonne Leadership

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Computing Facility Blue Gene/Q scaling This figure shows Blue Gene/Q scaling with respect to increasing number of nodes for calculations of the first isospin-1 state of $^{12}$C. The good multinode scaling is a result of the ADLB library. Quantum Monte Carlo Calculations in Nuclear Theory PI Name: Steven Pieper PI Email: spieper@anl.gov Institution: Argonne National Laboratory Allocation Program: ESP Year: 2015 Research Domain: Physics Tier 2 Code Development Project Numerical

  14. Calculations of pair production by Monte Carlo methods

    SciTech Connect (OSTI)

    Bottcher, C.; Strayer, M.R.

    1991-01-01

    We describe some of the technical design issues associated with the production of particle-antiparticle pairs in very large accelerators. To answer these questions requires extensive calculation of Feynman diagrams, in effect multi-dimensional integrals, which we evaluate by Monte Carlo methods on a variety of supercomputers. We present some portable algorithms for generating random numbers on vector and parallel architecture machines. 12 refs., 14 figs.

  15. Monte Carlo calculations for r-process nucleosynthesis

    SciTech Connect (OSTI)

    Mumpower, Matthew Ryan

    2015-11-12

    A Monte Carlo framework is developed for exploring the impact of nuclear model uncertainties on the formation of the heavy elements. Mass measurements tightly constrain the macroscopic sector of FRDM2012. For r-process nucleosynthesis, it is necessary to understand the microscopic physics of the nuclear model employed. A combined approach of measurements and a deeper understanding of the microphysics is thus warranted to elucidate the site of the r-process.

  16. Carlos Duarte Priya Gandhi Antony Kim Jared Landsman

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Carlos Duarte Priya Gandhi Antony Kim Jared Landsman Luis Santos Sara Tepfer Taoning Wang Team Negawatt Broader context Selected site Los Angeles, CA (Koreatown District) Built in 1916 & Designated a Historical Monument in 1998 3450 ft 2 Single Family Dwelling Project site CZ9 weather station CZ8 weather station Climate Climate zone 9 Climate zone 8 Climate zone 6 ● Increase urban density ● Rehab an existing building ● Maintain historical preservation status ● Zero Net Energy (ZNE)

  17. EERE Success Story-Texas: City of San Antonio Demonstrates Value of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Greater Investments in Clean Energy | Department of Energy Texas: City of San Antonio Demonstrates Value of Greater Investments in Clean Energy EERE Success Story-Texas: City of San Antonio Demonstrates Value of Greater Investments in Clean Energy August 21, 2013 - 12:00am Addthis The City of San Antonio has a sound strategy in place to ensure that their Energy Efficiency and Conservation Block Grant (EECBG) projects are successful and viable in the long term. Each project was designed to

  18. New Whole-House Solutions Case Study: Imagine Homes, San Antonio, TX

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Founded in 2006, Imagine Homes of San Antonio has worked with DOE's Building America research team IBACOS to build more than 300 high-performance homes that achieve HERS energy efficiency scores from 52 to 65. Imagine Homes was also the first San Antonio builder to certify all of its homes to both the federal ENERGY STAR program and the Build San Antonio Green program. The local company has sold 77 homes per year over the last 4 years in a market flooded with just-to- code homes by national

  19. San Antonio Small Businesses "Seeing the Light" with Energy Upgrades |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy San Antonio Small Businesses "Seeing the Light" with Energy Upgrades San Antonio Small Businesses "Seeing the Light" with Energy Upgrades March 21, 2012 - 2:27pm Addthis KBK to the Trade 1 of 5 KBK to the Trade Thanks to the City Lights program, this design shop is saving an estimated 25,500 kilowatt-hours and $2,000 on electricity bills each year. | Photo Credit: City of San Antonio Date taken: 2011-05-24 15:06 Gallista Gallery 2 of 5 Gallista

  20. Monte Carlo calculations and experimental measurements of dosimetric parameters of the IRA-{sup 103}Pd brachytherapy source

    SciTech Connect (OSTI)

    Sadeghi, Mahdi; Raisali, Gholamreza; Hosseini, S. Hamed; Shavar, Arzhang

    2008-04-15

    This article presents a brachytherapy source having {sup 103}Pd adsorbed onto a cylindrical silver rod that has been developed by the Agricultural, Medical, and Industrial Research School for permanent implant applications. Dosimetric characteristics (radial dose function, anisotropy function, and anisotropy factor) of this source were experimentally and theoretically determined in terms of the updated AAPM Task group 43 (TG-43U1) recommendations. Monte Carlo simulations were used to calculate the dose rate constant. Measurements were performed using TLD-GR200A circular chip dosimeters using standard methods employing thermoluminescent dosimeters in a Perspex phantom. Precision machined bores in the phantom located the dosimeters and the source in a reproducible fixed geometry, providing for transverse-axis and angular dose profiles over a range of distances from 0.5 to 5 cm. The Monte Carlo N-particle (MCNP) code, version 4C simulation techniques have been used to evaluate the dose-rate distributions around this model {sup 103}Pd source in water and Perspex phantoms. The Monte Carlo calculated dose rate constant of the IRA-{sup 103}Pd source in water was found to be 0.678 cGy h{sup -1} U{sup -1} with an approximate uncertainty of {+-}0.1%. The anisotropy function, F(r,{theta}), and the radial dose function, g(r), of the IRA-{sup 103}Pd source were also measured in a Perspex phantom and calculated in both Perspex and liquid water phantoms.

  1. Iterative Monte Carlo analysis of spin-dependent parton distributions

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Sato, Nobuo; Melnitchouk, Wally; Kuhn, Sebastian E.; Ethier, Jacob J.; Accardi, Alberto

    2016-04-05

    We present a comprehensive new global QCD analysis of polarized inclusive deep-inelastic scattering, including the latest high-precision data on longitudinal and transverse polarization asymmetries from Jefferson Lab and elsewhere. The analysis is performed using a new iterative Monte Carlo fitting technique which generates stable fits to polarized parton distribution functions (PDFs) with statistically rigorous uncertainties. Inclusion of the Jefferson Lab data leads to a reduction in the PDF errors for the valence and sea quarks, as well as in the gluon polarization uncertainty at x ≳ 0.1. Furthermore, the study also provides the first determination of the flavor-separated twist-3 PDFsmore » and the d2 moment of the nucleon within a global PDF analysis.« less

  2. DOE Zero Energy Ready Home Case Study: One Sky Homes, San Jose, CA

    Broader source: Energy.gov [DOE]

    Case study of a DOE Zero Energy Ready home in San Jose, CA, that achieved a HERS 69 on the California HERS score without PV, or HERS -1 with 6.4 kW of PV.

  3. Field Scale Test and Verification of CHP System at the Ritz Carlton, San Francisco, August 2007

    Broader source: Energy.gov [DOE]

    ITP Industrial Distributed Energy: National Account Energy Alliance Final Report for the Field Scale Test and Verification of a PureComfort® 240M Combined Heat and Power System at the Ritz Carlton, San Francisco

  4. EECBG Success Story: San Francisco Turns Up The Heat In Push To Eliminate Old Boilers

    Broader source: Energy.gov [DOE]

    San Francisco’s extensive stock of multifamily properties is getting some critical assistance in replacing old and inefficient boilers with new, high-efficiency heating systems using Energy Efficiency and Conservation Block Grant (EECBG) funds. Learn more.

  5. Department of Energy Announces Quadrennial Energy Review Public Meeting in San Francisco

    Broader source: Energy.gov [DOE]

    WASHINGTON, DC – The Energy Department’s Office of Energy Policy and Systems Analysis will host a public meeting in San Francisco on Thursday to receive stakeholder input to the Quadrennial Energy...

  6. San Francisco Turns Up The Heat In Push To Eliminate Old Boilers

    Broader source: Energy.gov [DOE]

    San Francisco’s extensive stock of multifamily properties is getting some critical assistance in replacing old and inefficient boilers with new, high-efficiency heating systems using Energy Efficiency and Conservation Block Grant (EECBG) funds.

  7. EIS-0458: First Solar Topaz Solar Farm Project in San Luis Obispo...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    EIS-0458: First Solar Topaz Solar Farm Project in San Luis Obispo County, CA Documents Available for Download EIS-0458: Final Environmental Impact Statement EIS-0458: DOE Notice of ...

  8. EA-1840: California Valley Solar Ranch Project in San Luis Obispo...

    Broader source: Energy.gov (indexed) [DOE]

    August 3, 2011 EA-1840: Final Environmental Assessment California Valley Solar Ranch Project in San Luis Obispo and Kern Counties, California August 3, 2011 EA-1840: Finding of No ...

  9. Bike Sharing in Texas: San Antonio Rolls Out Program Aimed at Energy Efficiency and Public Health

    Broader source: Energy.gov [DOE]

    As the first bike sharing system in Texas, San Antonio’s B-Cycle addresses two top concerns in the city: providing opportunities to improve personal health and giving active transportation choices...

  10. Microsoft Word - Tech_Memo_SanJose_HPPavilion_BIPVL-RoofImpact...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    for the City of San Jos under the Department of Energy's Solar America Showcase program. ... (BIPV) product that consists of thin-film, flexible photovoltaic modules that can be ...

  11. Pueblo De San Ildefonso Department of Environmental and Cultural Preservation Program Overview 2015

    Broader source: Energy.gov [DOE]

    At the September 30, 2015 meeting: Director Raymond Martinez, and Governor Mountain, provided the membership with an update on the Pueblo de San Ildefonso's perspectives on: environmental clean up and cultural preservation.

  12. NPDES compliance monitoring report: Oracle Ridge Mine, San Manuel, Arizona. Draft report

    SciTech Connect (OSTI)

    Stevens, J.

    1992-11-03

    This presents the findings of a compliance evaluation inspection of the Oracle Ridge Copper Mine near San Manuel, Arizona, conducted on August 17, 1992. It is part of a series of inspections of uncontrolled discharges of mine drainage.

  13. San Antonio Area Middle School Regional Science Bowl | U.S. DOE Office of

    Office of Science (SC) Website

    Science (SC) San Antonio Area Middle School Regional Science Bowl National Science Bowl® (NSB) NSB Home About Regional Competitions Rules, Forms, and Resources High School Regionals Middle School Regionals National Finals Volunteers Key Dates Frequently Asked Questions News Media Contact Us WDTS Home Contact Information National Science Bowl® U.S. Department of Energy SC-27/ Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 E: Email Us Middle School Regionals San Antonio

  14. NE-23 List of California Sites Hattie Carwell. SAN/NSQA Division

    Office of Legacy Management (LM)

    Hattie Carwell. SAN/NSQA Division Attached for your information is the list Of Callfornia sites we identified in our search of Manhattdn Engineer District records for the Formerly Utilized Sites Remedial Action Program (FUSRAP). None of the facilities listed qualified for FUSRAP. The only site in California that was included in FUSRAP was Gilman Hall on the University of California-Berkeley Campus. All California sites that are in our Surplus Facilities Management Program are under San Francisco

  15. DOE Congestion Workshop, San Diego, December 15, 2011 Comments from California ISO

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Congestion Workshop, San Diego, December 15, 2011 Comments from California ISO U.S. Department of Energy National Electric Transmission Congestion Study Workshop San Diego, December 15, 2011 Questions from DOE and Comments from the California ISO Panelists have been asked to address the following questions, with emphasis as each panelist deems appropriate: 1) In its 2009 Congestion Study, DOE found that Southern California constitutes a Critical Congestion Area, that the Portland-Seattle region

  16. To: U.S. Department of Energy From: San Diego Gas & Electric Company

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Via email To: U.S. Department of Energy From: San Diego Gas & Electric Company Date: October 17, 2014 Comments of San Diego Gas & Electric Company on the Department of Energy's National Electric Transmission Congestion Study - Draft for Public Comment I. Introduction On August 19, 2014, the Department of Energy ("Department") issued a Notice 1 inviting public comment on the draft National Electric Transmission Congestion Study. 2 The Draft Study is the third congestion study

  17. Energy Secretary Moniz Hosts Gathering of World's Energy Ministers in San

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Francisco to Advance Technology Solutions, Accelerate Clean Energy Deployment | Department of Energy Secretary Moniz Hosts Gathering of World's Energy Ministers in San Francisco to Advance Technology Solutions, Accelerate Clean Energy Deployment Energy Secretary Moniz Hosts Gathering of World's Energy Ministers in San Francisco to Advance Technology Solutions, Accelerate Clean Energy Deployment June 2, 2016 - 5:47pm Addthis NEWS MEDIA CONTACT (202) 586-4940 DOENews@hq.doe.gov 21 Major

  18. Estimating solar access of typical residential rooftops: A case study in San Jose, CA

    SciTech Connect (OSTI)

    Levinson, Ronnen M.; Gupta, Smita; Akbari, Hashem; Pomerantz, Melvin

    2008-03-03

    Shadows cast by trees and buildings can limit the solar access of rooftop solar-energy systems, including photovoltaic panels and thermal collectors. This study characterizes rooftop shading in a residential neighborhood of San Jose, CA, one of four regions analyzed in a wider study of the solar access of California homes.High-resolution orthophotos and LiDAR (Light Detection And Ranging) measurements of surface height were used to create a digital elevation model of all trees and buildings in a 4 km2 residential neighborhood. Hourly shading of roofing planes (the flat elements of roofs) was computed geometrically from the digital elevation model. Parcel boundaries were used to determine the extent to which roofing planes were shaded by trees and buildings in neighboring parcels.In the year in which surface heights were measured (2005), shadows from all sources ("total shading") reduced the insolation received by S-, SW-, and W-facing residential roofing planes in the study area by 13 - 16percent. Shadows cast by trees and buildings in neighboring parcels reduced insolation by no more than 2percent. After 30 years of simulated maximal tree growth, annual total shading increased to 19 - 22percent, and annual extraparcel shading increased to 3 - 4percent.

  19. Solar San Diego: The Impact of Binomial Rate Structures on Real PV Systems; Preprint

    SciTech Connect (OSTI)

    VanGeet, O.; Brown, E.; Blair, T.; McAllister, A.

    2008-05-01

    There is confusion in the marketplace regarding the impact of solar photovoltaics (PV) on the user's actual electricity bill under California Net Energy Metering, particularly with binomial tariffs (those that include both demand and energy charges) and time-of-use (TOU) rate structures. The City of San Diego has extensive real-time electrical metering on most of its buildings and PV systems, with interval data for overall consumption and PV electrical production available for multiple years. This paper uses 2007 PV-system data from two city facilities to illustrate the impacts of binomial rate designs. The analysis will determine the energy and demand savings that the PV systems are achieving relative to the absence of systems. A financial analysis of PV-system performance under various rate structures is presented. The data revealed that actual demand and energy use benefits of binomial tariffs increase in summer months, when solar resources allow for maximized electricity production. In a binomial tariff system, varying on- and semi-peak times can result in approximately $1,100 change in demand charges per month over not having a PV system in place, an approximate 30% cost savings. The PV systems are also shown to have a 30%-50% reduction in facility energy charges in 2007.

  20. Shallow gas well drilling with coiled tubing in the San Juan Basin

    SciTech Connect (OSTI)

    Moon, R.G.; Ovitz, R.W.; Guild, G.J.; Biggs, M.D.

    1996-12-31

    Coiled tubing is being utilized to drill new wells, for re-entry drilling to deepen or laterally extend existing wells, and for underbalanced drilling to prevent formation damage. Less than a decade old, coiled tubing drilling technology is still in its inaugral development stage. Initially, utilizing coiled tubing was viewed as a {open_quotes}science project{close_quotes} to determine the validity of performing drilling operations in-lieu of the conventional rotary rig. Like any new technology, the initial attempts were not always successful, but did show promise as an economical alternative if continued efforts were made in the refinement of equipment and operational procedures. A multiwell project has been completed in the San Juan Basin of Northwestern New Mexico which provides documentation indicating that coiled tubing can be an alternative to the conventional rotary rig. A 3-well pilot project, a 6-well project was completed uniquely utilizing the combined resources of a coiled tubing service company, a producing company, and a drilling contractor. This combination of resources aided in the refinement of surface equipment, personnel, mud systems, jointed pipe handling, and mobilization. The results of the project indicate that utilization of coiled tubing for the specific wells drilled was an economical alternative to the conventional rotary rig for drilling shallow gas wells.

  1. Public health assessment for Treasure Island Naval Station, Hunters Point Annex, San Francisco, San Francisco County, California, Region 9. Cerclis No. CA1170090087. Final report

    SciTech Connect (OSTI)

    Not Available

    1994-09-30

    Naval Station Treasure Island, Hunters Point Annex (HPA), an inactive Naval shipyard located on a peninsula in the San Francisco Bay, San Francisco, California, was listed for base closure in 1990. Metals, pesticides, radium-226, polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), volatile organic compounds, semivolatile organic compounds, petroleum products, and asbestos have been found in various media such as soil, groundwater, surface water, air, and sediments. Navy contractors have identified 58 HPA areas where there may be contamination; investigations at these areas are ongoing.

  2. CX-100651 Categorical Exclusion Determination | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    1 Categorical Exclusion Determination CX-100651 Categorical Exclusion Determination Dielectric Metasurface Concentrators Award Number: DE-EE0007341 CX(s) Applied: A9, B3.6 Solar Energy Technology Office Date: 6/13/2016 Location(s): CO Office(s): Golden Field Office The U.S. Department of Energy (DOE) is proposing to provide federal funding to the University of California San Diego (UCSD) for the design, optimization, fabrication and testing of the metasurface solar concentrators. Proposed

  3. CX-008789: Categorical Exclusion Determination | Department of Energy

    Office of Environmental Management (EM)

    9: Categorical Exclusion Determination CX-008789: Categorical Exclusion Determination Routine Maintenance of Curecanti-Lost Canyon 230 Kilovolt Access Roads and Western Area Power Administration Right-of-Way in Montrose, Ouray, San Miguel, Dolores, and Montezuma Counties, Colorado CX(s) Applied: B1.3 Date: 05/22/2012 Location(s): Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region Western Area Power Administration (Western) proposes to perform routine maintenance of

  4. CX-008790: Categorical Exclusion Determination | Department of Energy

    Office of Environmental Management (EM)

    90: Categorical Exclusion Determination CX-008790: Categorical Exclusion Determination Routine Maintenance of Hesperus-Montrose 345 Kilovolt Transmission Line Access Roads San Miguel, Ouray, Montrose, Montezuma, La Plata, and Dolores Counties, Colorado CX(s) Applied: B1.3 Date: 06/05/2012 Location(s): Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region Western Area Power Administration (Western) proposes to perform routine maintenance of existing access roads and

  5. CX-005363: Categorical Exclusion Determination | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    3: Categorical Exclusion Determination CX-005363: Categorical Exclusion Determination Solar Junction's 100 Megawatt Manufacturing Line CX(s) Applied: B1.31 Date: 03/04/2011 Location(s): San Jose, California Office(s): Loan Guarantee Program Office The Department of Energy's proposed action is to issue a loan guarantee to Solar Junction to finance a 100 megawatt (MW) solar cell manufacturing line for multifunction photovoltaic solar cells to expand their existing 7 MW Demonstration Facility at

  6. CX-001251: Categorical Exclusion Determination | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    251: Categorical Exclusion Determination CX-001251: Categorical Exclusion Determination Energy Efficiency and Conservation, Energy Audits, Heating, Ventilation, Air Conditioning Upgrades, and Lighting Retrofits CX(s) Applied: A9, A11, B2.5, B5.1 Date: 12/02/2009 Location(s): San Marcos, California Office(s): Energy Efficiency and Renewable Energy Energy Efficiency and Conservation Block Grant for: 1) Administration of energy efficiency and conservation strategy, 2) perform energy efficiency

  7. CX-006268: Categorical Exclusion Determination | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    68: Categorical Exclusion Determination CX-006268: Categorical Exclusion Determination Job Creation and Petroleum Independence with 85% Ethanol (E85) Fuel in Texas CX(s) Applied: B5.1 Date: 07/27/2011 Location(s): San Antonio, Texas Office(s): Energy Efficiency and Renewable Energy, Golden Field Office Protec Fuel Management proposes to install a 6,000 gallon, ethanol compatible, underground tank to store and distribute ethanol fuels. This tank, dispenser and associated piping will be converted

  8. Properties of reactive oxygen species by quantum Monte Carlo

    SciTech Connect (OSTI)

    Zen, Andrea; Trout, Bernhardt L.; Guidoni, Leonardo

    2014-07-07

    The electronic properties of the oxygen molecule, in its singlet and triplet states, and of many small oxygen-containing radicals and anions have important roles in different fields of chemistry, biology, and atmospheric science. Nevertheless, the electronic structure of such species is a challenge for ab initio computational approaches because of the difficulties to correctly describe the statical and dynamical correlation effects in presence of one or more unpaired electrons. Only the highest-level quantum chemical approaches can yield reliable characterizations of their molecular properties, such as binding energies, equilibrium structures, molecular vibrations, charge distribution, and polarizabilities. In this work we use the variational Monte Carlo (VMC) and the lattice regularized Monte Carlo (LRDMC) methods to investigate the equilibrium geometries and molecular properties of oxygen and oxygen reactive species. Quantum Monte Carlo methods are used in combination with the Jastrow Antisymmetrized Geminal Power (JAGP) wave function ansatz, which has been recently shown to effectively describe the statical and dynamical correlation of different molecular systems. In particular, we have studied the oxygen molecule, the superoxide anion, the nitric oxide radical and anion, the hydroxyl and hydroperoxyl radicals and their corresponding anions, and the hydrotrioxyl radical. Overall, the methodology was able to correctly describe the geometrical and electronic properties of these systems, through compact but fully-optimised basis sets and with a computational cost which scales as N{sup 3} ? N{sup 4}, where N is the number of electrons. This work is therefore opening the way to the accurate study of the energetics and of the reactivity of large and complex oxygen species by first principles.

  9. Coupled Monte Carlo neutronics and thermal hydraulics for power reactors

    SciTech Connect (OSTI)

    Bernnat, W.; Buck, M.; Mattes, M.; Zwermann, W.; Pasichnyk, I.; Velkov, K.

    2012-07-01

    The availability of high performance computing resources enables more and more the use of detailed Monte Carlo models even for full core power reactors. The detailed structure of the core can be described by lattices, modeled by so-called repeated structures e.g. in Monte Carlo codes such as MCNP5 or MCNPX. For cores with mainly uniform material compositions, fuel and moderator temperatures, there is no problem in constructing core models. However, when the material composition and the temperatures vary strongly a huge number of different material cells must be described which complicate the input and in many cases exceed code or memory limits. The second problem arises with the preparation of corresponding temperature dependent cross sections and thermal scattering laws. Only if these problems can be solved, a realistic coupling of Monte Carlo neutronics with an appropriate thermal-hydraulics model is possible. In this paper a method for the treatment of detailed material and temperature distributions in MCNP5 is described based on user-specified internal functions which assign distinct elements of the core cells to material specifications (e.g. water density) and temperatures from a thermal-hydraulics code. The core grid itself can be described with a uniform material specification. The temperature dependency of cross sections and thermal neutron scattering laws is taken into account by interpolation, requiring only a limited number of data sets generated for different temperatures. Applications will be shown for the stationary part of the Purdue PWR benchmark using ATHLET for thermal- hydraulics and for a generic Modular High Temperature reactor using THERMIX for thermal- hydraulics. (authors)

  10. Optimization of Gutzwiller wave functions in quantum Monte Carlo

    SciTech Connect (OSTI)

    Koch, E.; Gunnarsson, O.; Martin, R.M.

    1999-06-01

    Gutzwiller functions are popular variational wave functions for correlated electrons in Hubbard models. Following the variational principle, we are interested in the Gutzwiller parameters that minimize, e.g., the expectation value of the energy. Rewriting the expectation value as a rational function in the Gutzwiller parameters, we find a very efficient way for performing that minimization. The method can be used to optimize general Gutzwiller-type wave functions both in variational and in fixed-node diffusion Monte Carlo. {copyright} {ital 1999} {ital The American Physical Society}

  11. Quantum Monte Carlo Simulation of Overpressurized Liquid {sup 4}He

    SciTech Connect (OSTI)

    Vranjes, L.; Boronat, J.; Casulleras, J.; Cazorla, C.

    2005-09-30

    A diffusion Monte Carlo simulation of superfluid {sup 4}He at zero temperature and pressures up to 275 bar is presented. Increasing the pressure beyond freezing ({approx}25 bar), the liquid enters the overpressurized phase in a metastable state. In this regime, we report results of the equation of state and the pressure dependence of the static structure factor, the condensate fraction, and the excited-state energy corresponding to the roton. Along this large pressure range, both the condensate fraction and the roton energy decrease but do not become zero. The roton energies obtained are compared with recent experimental data in the overpressurized regime.

  12. Communication: Water on hexagonal boron nitride from diffusion Monte Carlo

    SciTech Connect (OSTI)

    Al-Hamdani, Yasmine S.; Ma, Ming; Michaelides, Angelos; Alf, Dario; Lilienfeld, O. Anatole von

    2015-05-14

    Despite a recent flurry of experimental and simulation studies, an accurate estimate of the interaction strength of water molecules with hexagonal boron nitride is lacking. Here, we report quantum Monte Carlo results for the adsorption of a water monomer on a periodic hexagonal boron nitride sheet, which yield a water monomer interaction energy of ?84 5 meV. We use the results to evaluate the performance of several widely used density functional theory (DFT) exchange correlation functionals and find that they all deviate substantially. Differences in interaction energies between different adsorption sites are however better reproduced by DFT.

  13. Cluster Monte Carlo simulations of the nematic-isotropic transition

    SciTech Connect (OSTI)

    Priezjev, N. V.; Pelcovits, Robert A.

    2001-06-01

    We report the results of simulations of the three-dimensional Lebwohl-Lasher model of the nematic-isotropic transition using a single cluster Monte Carlo algorithm. The algorithm, first introduced by Kunz and Zumbach to study two-dimensional nematics, is a modification of the Wolff algorithm for spin systems, and greatly reduces critical slowing down. We calculate the free energy in the neighborhood of the transition for systems up to linear size 70. We find a double well structure with a barrier that grows with increasing system size. We thus obtain an upper estimate of the value of the transition temperature in the thermodynamic limit.

  14. A Post-Monte-Carlo Sensitivity Analysis Code

    Energy Science and Technology Software Center (OSTI)

    2000-04-04

    SATOOL (Sensitivity Analysis TOOL) is a code for sensitivity analysis, following an uncertainity analysis with Monte Carlo simulations. Sensitivity analysis identifies those input variables, whose variance contributes dominatly to the variance in the output. This analysis can be used to reduce the variance in the output variables by redefining the "sensitive" variables with greater precision, i.e. with lower variance. The code identifies a group of sensitive variables, ranks them in the order of importance andmore » also quantifies the relative importance among the sensitive variables.« less

  15. Element Agglomeration Algebraic Multilevel Monte-Carlo Library

    Energy Science and Technology Software Center (OSTI)

    2015-02-19

    ElagMC is a parallel C++ library for Multilevel Monte Carlo simulations with algebraically constructed coarse spaces. ElagMC enables Multilevel variance reduction techniques in the context of general unstructured meshes by using the specialized element-based agglomeration techniques implemented in ELAG (the Element-Agglomeration Algebraic Multigrid and Upscaling Library developed by U. Villa and P. Vassilevski and currently under review for public release). The ElabMC library can support different type of deterministic problems, including mixed finite element discretizationsmore » of subsurface flow problems.« less

  16. Reservoir geology of Landslide field, southern San Joaquin basin, California

    SciTech Connect (OSTI)

    Carr, T.R.; Tucker, R.D.; Singleton, M.T. )

    1991-02-01

    The Landslide field, which is located on the southern margin of the San Joaquin basin, was discovered in 1985 and consists of 13 producers and six injectors. Cumulative production as of mid-1990 was approximately 10 million bbl of oil with an average daily production of 4700 BOPD. Production is from a series of late Miocene turbidite sands (Stevens Sand) that were deposited as a small constructional submarine fan (less than 2 mi in diameter). Based on interpretation of wireline logs and engineering data, deposition of the fan and of individual lobes within the fan was strongly influenced by preexisting paleotopography and small syndepositional slump features. Based on mapping of individual depositional units and stratigraphic dipmeter analysis, transport direction of the sand was to the north-north across these paleotopographic breaks in slope. Dipmeter data and pressure data from individual sands are especially useful for recognition and mapping of individual flow units between well bores. Detailed engineering, geophysical and geological studies have increased our understanding of the dimensions, continuity, geometry, and inherent reservoir properties of the individual flow units within the reservoir. Based on the results of these studies a series of water isolation workovers and extension wells were proposed and successfully undertaken. This work has increased recoverable reserves and arrested the rapid production decline.

  17. Microbial diversity and carbon cycling in San Francisco Bay wetlands

    SciTech Connect (OSTI)

    Theroux, Susanna; Hartman, Wyatt; He, Shaomei; Tringe, Susannah

    2014-03-21

    Wetland restoration efforts in San Francisco Bay aim to rebuild habitat for endangered species and provide an effective carbon storage solution, reversing land subsidence caused by a century of industrial and agricultural development. However, the benefits of carbon sequestration may be negated by increased methane production in newly constructed wetlands, making these wetlands net greenhouse gas (GHG) sources to the atmosphere. We investigated the effects of wetland restoration on below-ground microbial communities responsible for GHG cycling in a suite of historic and restored wetlands in SF Bay. Using DNA and RNA sequencing, coupled with real-time GHG monitoring, we profiled the diversity and metabolic potential of wetland soil microbial communities. The wetland soils harbor diverse communities of bacteria and archaea whose membership varies with sampling location, proximity to plant roots and sampling depth. Our results also highlight the dramatic differences in GHG production between historic and restored wetlands and allow us to link microbial community composition and GHG cycling with key environmental variables including salinity, soil carbon and plant species.

  18. Application of Monte Carlo Methods in Molecular Targeted Radionuclide Therapy

    SciTech Connect (OSTI)

    Hartmann Siantar, C; Descalle, M-A; DeNardo, G L; Nigg, D W

    2002-02-19

    Targeted radionuclide therapy promises to expand the role of radiation beyond the treatment of localized tumors. This novel form of therapy targets metastatic cancers by combining radioactive isotopes with tumor-seeking molecules such as monoclonal antibodies and custom-designed synthetic agents. Ultimately, like conventional radiotherapy, the effectiveness of targeted radionuclide therapy is limited by the maximum dose that can be given to a critical, normal tissue, such as bone marrow, kidneys, and lungs. Because radionuclide therapy relies on biological delivery of radiation, its optimization and characterization are necessarily different than for conventional radiation therapy. We have initiated the development of a new, Monte Carlo transport-based treatment planning system for molecular targeted radiation therapy as part of the MINERVA treatment planning system. This system calculates patient-specific radiation dose estimates using a set of computed tomography scans to describe the 3D patient anatomy, combined with 2D (planar image) and 3D (SPECT, or single photon emission computed tomography) to describe the time-dependent radiation source. The accuracy of such a dose calculation is limited primarily by the accuracy of the initial radiation source distribution, overlaid on the patient's anatomy. This presentation provides an overview of MINERVA functionality for molecular targeted radiation therapy, and describes early validation and implementation results of Monte Carlo simulations.

  19. Monte Carlo Fundamentals E B. BROWN and T M. S N

    Office of Scientific and Technical Information (OSTI)

    or reflect those of the United States Government or any ... Monte Carlo approach: Generate a sequence of states, (pol ... partide from birth to death During the particle ...

  20. OSTIblog Articles in the Monte Carlo Topic | OSTI, US Dept of Energy Office

    Office of Scientific and Technical Information (OSTI)

    of Scientific and Technical Information Monte Carlo Topic The Unbelievable Accuracy of the Monte Carlo Method by Kathy Chambers 18 Jan, 2013 in Science Communications 4680 Monte%20Carlo.jpg The Unbelievable Accuracy of the Monte Carlo Method Read more about 4680 The year was 1945, the year I was born. That in itself is of great significance to me. However, it was a momentous year in history. World War II came to its merciful end and the development of the first electronic computer - the

  1. Monte Carlo Bayesian search for the plausible source of the Telescope...

    Office of Scientific and Technical Information (OSTI)

    Title: Monte Carlo Bayesian search for the plausible source of the Telescope Array hotspot Authors: He, Hao-Ning ; Kusenko, Alexander ; Nagataki, Shigehiro ; Zhang, Bin-Bin ; Yang, ...

  2. Hybrid Deterministic/Monte Carlo Solutions to the Neutron Transport k-Eigenvalue Problem with a Comparison to Pure Monte Carlo Solutions

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Hybrid Deterministic/Monte Carlo Solutions to the Neutron Transport k-Eigenvalue Problem with a Comparison to Pure Monte Carlo Solutions Jeffrey A. Willert Los Alamos National Laboratory September 16, 2013 Joint work with: Dana Knoll (LANL), Ryosuke Park (LANL), and C. T. Kelley (NCSU) Jeffrey A. Willert Hybrid k-Eigenvalue Methods September 16, 2013 1 / 25 CASL-U-2013-0309-000 1 Introduction 2 Nonlinear Diffusion Acceleration for k-Eigenvalue Problems 3 Hybrid Methods 4 Classic Monte Carlo

  3. Fluvial-deltaic heavy oil reservoir, San Joaquin basin

    SciTech Connect (OSTI)

    Miller, D.D.; McPherson, J.G.; Covington, T.E.

    1989-03-01

    Unconsolidated arkosic sands deposited in a fluvial-deltaic geologic setting comprise the heavy oil (13/degree/ API gravity) reservoir at South Belridge field. The field is located along the western side of the San Joaquin basin in Kern County, California. More than 6000 closely spaced and shallow wells are the key to producing the estimated 1 billion bbl of ultimate recoverable oil production. Thousands of layered and laterally discontinuous reservoir sands produce from the Pleistocene Tulare Formation. The small scale of reservoir geometries is exploited by a high well density, required for optimal heavy oil production. Wells are typically spaced 200-500 ft (66-164 m) apart and drilled to 1000 ft (328 m) deep in the 14-mi/sup 2/ (36-km/sup 2/) producing area. Successful in-situ combustion, cyclic steaming, and steamflood projects have benefited from the shallow-depth, thick, layered sands, which exhibit excellent reservoir quality. The fundamental criterion for finding another South Belridge field is to realize the extraordinary development potential of shallow, heavy oil reservoirs, even when an unspectacular discovery well is drilled. The trap is a combination of structural and stratigraphic mechanisms plus influence from unconventional fluid-level and tar-seal traps. The depositional model is interpreted as a braid delta sequence that prograded from the nearby basin-margin highlands. A detailed fluvial-deltaic sedimentologic model establishes close correlation between depositional lithofacies, reservoir geometries, reservoir quality, and heavy oil producibility. Typical porosity is 35% and permeability is 3000 md.

  4. Santa Clara Valley Transportation Authority and San Mateo County Transit District-- Fuel Cell Transit Buses: Evaluation Results

    Broader source: Energy.gov [DOE]

    This report provides evaluation results for prototype fuel cell transit buses operating at Santa Clara Valley Transportation Authority in San Jose, California.

  5. How the Recovery Act and Community Organizing Are Saving the Residents of San Mateo County Major Cash

    Broader source: Energy.gov [DOE]

    California's San Mateo County gives residents more affordable access to energy upgrades, reducing home energy use and creating new jobs in the process.

  6. Santa Clara Valley Transportation Authority and San Mateo County Transit District -- Fuel Cell Transit Buses: Evaluation Results

    SciTech Connect (OSTI)

    Chandler, K.; Eudy, L.

    2006-11-01

    This report provides evaluation results for prototype fuel cell transit buses operating at Santa Clara Valley Transportation Authority in San Jose, California.

  7. Santa Clara Valley Transportation Authority and San Mateo County Transit District; Fuel Cell Transit Buses: Preliminary Evaluation Results

    SciTech Connect (OSTI)

    Eudy, L.; Chandler, K.

    2006-03-01

    Report provides preliminary results from an evaluation of prototype fuel cell transit buses operating at Santa Clara Valley Transportation Authority (VTA) in San Jose, California.

  8. Brachytherapy structural shielding calculations using Monte Carlo generated, monoenergetic data

    SciTech Connect (OSTI)

    Zourari, K.; Peppa, V.; Papagiannis, P.; Ballester, Facundo; Siebert, Frank-Andr

    2014-04-15

    Purpose: To provide a method for calculating the transmission of any broad photon beam with a known energy spectrum in the range of 201090 keV, through concrete and lead, based on the superposition of corresponding monoenergetic data obtained from Monte Carlo simulation. Methods: MCNP5 was used to calculate broad photon beam transmission data through varying thickness of lead and concrete, for monoenergetic point sources of energy in the range pertinent to brachytherapy (201090 keV, in 10 keV intervals). The three parameter empirical model introduced byArcher et al. [Diagnostic x-ray shielding design based on an empirical model of photon attenuation, Health Phys. 44, 507517 (1983)] was used to describe the transmission curve for each of the 216 energy-material combinations. These three parameters, and hence the transmission curve, for any polyenergetic spectrum can then be obtained by superposition along the lines of Kharrati et al. [Monte Carlo simulation of x-ray buildup factors of lead and its applications in shielding of diagnostic x-ray facilities, Med. Phys. 34, 13981404 (2007)]. A simple program, incorporating a graphical user interface, was developed to facilitate the superposition of monoenergetic data, the graphical and tabular display of broad photon beam transmission curves, and the calculation of material thickness required for a given transmission from these curves. Results: Polyenergetic broad photon beam transmission curves of this work, calculated from the superposition of monoenergetic data, are compared to corresponding results in the literature. A good agreement is observed with results in the literature obtained from Monte Carlo simulations for the photon spectra emitted from bare point sources of various radionuclides. Differences are observed with corresponding results in the literature for x-ray spectra at various tube potentials, mainly due to the different broad beam conditions or x-ray spectra assumed. Conclusions: The data of

  9. A study of Monte Carlo radiative transfer through fractal clouds

    SciTech Connect (OSTI)

    Gautier, C.; Lavallec, D.; O`Hirok, W.; Ricchiazzi, P.

    1996-04-01

    An understanding of radiation transport (RT) through clouds is fundamental to studies of the earth`s radiation budget and climate dynamics. The transmission through horizontally homogeneous clouds has been studied thoroughly using accurate, discreet ordinates radiative transfer models. However, the applicability of these results to general problems of global radiation budget is limited by the plane parallel assumption and the fact that real clouds fields show variability, both vertically and horizontally, on all size scales. To understand how radiation interacts with realistic clouds, we have used a Monte Carlo radiative transfer model to compute the details of the photon-cloud interaction on synthetic cloud fields. Synthetic cloud fields, generated by a cascade model, reproduce the scaling behavior, as well as the cloud variability observed and estimated from cloud satellite data.

  10. Quantitative Monte Carlo-based holmium-166 SPECT reconstruction

    SciTech Connect (OSTI)

    Elschot, Mattijs; Smits, Maarten L. J.; Nijsen, Johannes F. W.; Lam, Marnix G. E. H.; Zonnenberg, Bernard A.; Bosch, Maurice A. A. J. van den; Jong, Hugo W. A. M. de; Viergever, Max A.

    2013-11-15

    Purpose: Quantitative imaging of the radionuclide distribution is of increasing interest for microsphere radioembolization (RE) of liver malignancies, to aid treatment planning and dosimetry. For this purpose, holmium-166 ({sup 166}Ho) microspheres have been developed, which can be visualized with a gamma camera. The objective of this work is to develop and evaluate a new reconstruction method for quantitative {sup 166}Ho SPECT, including Monte Carlo-based modeling of photon contributions from the full energy spectrum.Methods: A fast Monte Carlo (MC) simulator was developed for simulation of {sup 166}Ho projection images and incorporated in a statistical reconstruction algorithm (SPECT-fMC). Photon scatter and attenuation for all photons sampled from the full {sup 166}Ho energy spectrum were modeled during reconstruction by Monte Carlo simulations. The energy- and distance-dependent collimator-detector response was modeled using precalculated convolution kernels. Phantom experiments were performed to quantitatively evaluate image contrast, image noise, count errors, and activity recovery coefficients (ARCs) of SPECT-fMC in comparison with those of an energy window-based method for correction of down-scattered high-energy photons (SPECT-DSW) and a previously presented hybrid method that combines MC simulation of photopeak scatter with energy window-based estimation of down-scattered high-energy contributions (SPECT-ppMC+DSW). Additionally, the impact of SPECT-fMC on whole-body recovered activities (A{sup est}) and estimated radiation absorbed doses was evaluated using clinical SPECT data of six {sup 166}Ho RE patients.Results: At the same noise level, SPECT-fMC images showed substantially higher contrast than SPECT-DSW and SPECT-ppMC+DSW in spheres ≥17 mm in diameter. The count error was reduced from 29% (SPECT-DSW) and 25% (SPECT-ppMC+DSW) to 12% (SPECT-fMC). ARCs in five spherical volumes of 1.96–106.21 ml were improved from 32%–63% (SPECT-DSW) and 50%–80

  11. Fuel temperature reactivity coefficient calculation by Monte Carlo perturbation techniques

    SciTech Connect (OSTI)

    Shim, H. J.; Kim, C. H.

    2013-07-01

    We present an efficient method to estimate the fuel temperature reactivity coefficient (FTC) by the Monte Carlo adjoint-weighted correlated sampling method. In this method, a fuel temperature change is regarded as variations of the microscopic cross sections and the temperature in the free gas model which is adopted to correct the asymptotic double differential scattering kernel. The effectiveness of the new method is examined through the continuous energy MC neutronics calculations for PWR pin cell problems. The isotope-wise and reaction-type-wise contributions to the FTCs are investigated for two free gas models - the constant scattering cross section model and the exact model. It is shown that the proposed method can efficiently predict the reactivity change due to the fuel temperature variation. (authors)

  12. Quantum Monte Carlo simulation of spin-polarized H

    SciTech Connect (OSTI)

    Markic, L. Vranjes; Boronat, J.; Casulleras, J.

    2007-02-01

    The ground-state properties of spin polarized hydrogen H{down_arrow} are obtained by means of diffusion Monte Carlo calculations. Using the most accurate to date ab initio H{down_arrow}-H{down_arrow} interatomic potential we have studied its gas phase, from the very dilute regime until densities above its freezing point. At very small densities, the equation of state of the gas is very well described in terms of the gas parameter {rho}a{sup 3}, with a the s-wave scattering length. The solid phase has also been studied up to high pressures. The gas-solid phase transition occurs at a pressure of 173 bar, a much higher value than suggested by previous approximate descriptions.

  13. Peelle's pertinent puzzle using the Monte Carlo technique

    SciTech Connect (OSTI)

    Kawano, Toshihiko; Talou, Patrick; Burr, Thomas; Pan, Feng

    2009-01-01

    We try to understand the long-standing problem of the Peelle's Pertinent Puzzle (PPP) using the Monte Carlo technique. We allow the probability density functions to be any kind of form to assume the impact of distribution, and obtain the least-squares solution directly from numerical simulations. We found that the standard least squares method gives the correct answer if a weighting function is properly provided. Results from numerical simulations show that the correct answer of PPP is 1.1 {+-} 0.25 if the common error is multiplicative. The thought-provoking answer of 0.88 is also correct, if the common error is additive, and if the error is proportional to the measured values. The least squares method correctly gives us the most probable case, where the additive component has a negative value. Finally, the standard method fails for PPP due to a distorted (non Gaussian) joint distribution.

  14. Optimization of Monte Carlo transport simulations in stochastic media

    SciTech Connect (OSTI)

    Liang, C.; Ji, W.

    2012-07-01

    This paper presents an accurate and efficient approach to optimize radiation transport simulations in a stochastic medium of high heterogeneity, like the Very High Temperature Gas-cooled Reactor (VHTR) configurations packed with TRISO fuel particles. Based on a fast nearest neighbor search algorithm, a modified fast Random Sequential Addition (RSA) method is first developed to speed up the generation of the stochastic media systems packed with both mono-sized and poly-sized spheres. A fast neutron tracking method is then developed to optimize the next sphere boundary search in the radiation transport procedure. In order to investigate their accuracy and efficiency, the developed sphere packing and neutron tracking methods are implemented into an in-house continuous energy Monte Carlo code to solve an eigenvalue problem in VHTR unit cells. Comparison with the MCNP benchmark calculations for the same problem indicates that the new methods show considerably higher computational efficiency. (authors)

  15. Monte-Carlo Continuous Energy Burnup Code System.

    Energy Science and Technology Software Center (OSTI)

    2007-08-31

    Version 00 MCB is a Monte Carlo Continuous Energy Burnup Code for a general-purpose use to calculate a nuclide density time evolution with burnup or decay. It includes eigenvalue calculations of critical and subcritical systems as well as neutron transport calculations in fixed source mode or k-code mode to obtain reaction rates and energy deposition that are necessary for burnup calculations. The MCB-1C patch file and data packages as distributed by the NEADB are verymore » well organized and are being made available through RSICC as received. The RSICC package includes the MCB-1C patch and MCB data libraries. Installation of MCB requires MCNP4C source code and utility programs, which are not included in this MCB distribution. They were provided with the now obsolete CCC-700/MCNP-4C package.« less

  16. Optimized nested Markov chain Monte Carlo sampling: theory

    SciTech Connect (OSTI)

    Coe, Joshua D; Shaw, M Sam; Sewell, Thomas D

    2009-01-01

    Metropolis Monte Carlo sampling of a reference potential is used to build a Markov chain in the isothermal-isobaric ensemble. At the endpoints of the chain, the energy is reevaluated at a different level of approximation (the 'full' energy) and a composite move encompassing all of the intervening steps is accepted on the basis of a modified Metropolis criterion. By manipulating the thermodynamic variables characterizing the reference system we maximize the average acceptance probability of composite moves, lengthening significantly the random walk made between consecutive evaluations of the full energy at a fixed acceptance probability. This provides maximally decorrelated samples of the full potential, thereby lowering the total number required to build ensemble averages of a given variance. The efficiency of the method is illustrated using model potentials appropriate to molecular fluids at high pressure. Implications for ab initio or density functional theory (DFT) treatment are discussed.

  17. Monte Carlo Simulation Tool Installation and Operation Guide

    SciTech Connect (OSTI)

    Aguayo Navarrete, Estanislao; Ankney, Austin S.; Berguson, Timothy J.; Kouzes, Richard T.; Orrell, John L.; Troy, Meredith D.; Wiseman, Clinton G.

    2013-09-02

    This document provides information on software and procedures for Monte Carlo simulations based on the Geant4 toolkit, the ROOT data analysis software and the CRY cosmic ray library. These tools have been chosen for its application to shield design and activation studies as part of the simulation task for the Majorana Collaboration. This document includes instructions for installation, operation and modification of the simulation code in a high cyber-security computing environment, such as the Pacific Northwest National Laboratory network. It is intended as a living document, and will be periodically updated. It is a starting point for information collection by an experimenter, and is not the definitive source. Users should consult with one of the authors for guidance on how to find the most current information for their needs.

  18. Identification of Focal Mechanisms of Seisms Occurring in the San Salvador Volcano-Ilopango Lake Area Between 1994 and March 2005

    SciTech Connect (OSTI)

    Maria Mendez Martinez, Luz de; Portillo, Mercy

    2009-04-19

    We studied the geographic area located in the central part of El Salvador, between the San Salvador Volcano (Quezaltepec) and Ilopango Lake. Its latitude is between 13 deg. 36' and 13 deg. 54', and longitude is between -89 deg. 18' and -88 deg. 57'. This area is directly affected by the WNW axis, the most prominent weak tectonic system in the region. Our research aimed to determine the focal mechanisms of seisms occurring in the studied area between 1994 and March 2005. Our analysis provided information about displacement types of the geological faults, using the wave impulse P method and computer applications ARCGIS and SEISAN, with the subroutine FOCMEC. Information of the studied seisms was obtained from the National Service of Territorial Studies (SNET) database. Geographic models used in the preparation of maps are from the geographic information system of the School of Physics at the University of El Salvador. The 37 focal mechanisms on the map of faults were identified in digital seismographs to determinate the arrival polarity of the wave P for each seism station. Data from the focal mechanisms were analyzed and correlated with their replications. The analysis allowed us to identify evidences to consider the fault continuity not reported by the last geological mission in El Salvador conducted in the 1970s. The fault continuity is located northwest of the studied geographical area, between San Salvador City and the San Salvador Volcano. The compression and strain axes for this area are two main horizontal force axes. The average orientation for the strain axis is NNE-SSW, and WNW-SEE for the compression axis. There is also important seismic activity in the Ilopango Lake and surrounding area. However, data did not allow us to make any inference. The tensors distribution resulted in a high dispersion corresponding to typical fauces models.

  19. Modeling granular phosphor screens by Monte Carlo methods

    SciTech Connect (OSTI)

    Liaparinos, Panagiotis F.; Kandarakis, Ioannis S.; Cavouras, Dionisis A.; Delis, Harry B.; Panayiotakis, George S.

    2006-12-15

    The intrinsic phosphor properties are of significant importance for the performance of phosphor screens used in medical imaging systems. In previous analytical-theoretical and Monte Carlo studies on granular phosphor materials, values of optical properties, and light interaction cross sections were found by fitting to experimental data. These values were then employed for the assessment of phosphor screen imaging performance. However, it was found that, depending on the experimental technique and fitting methodology, the optical parameters of a specific phosphor material varied within a wide range of values, i.e., variations of light scattering with respect to light absorption coefficients were often observed for the same phosphor material. In this study, x-ray and light transport within granular phosphor materials was studied by developing a computational model using Monte Carlo methods. The model was based on the intrinsic physical characteristics of the phosphor. Input values required to feed the model can be easily obtained from tabulated data. The complex refractive index was introduced and microscopic probabilities for light interactions were produced, using Mie scattering theory. Model validation was carried out by comparing model results on x-ray and light parameters (x-ray absorption, statistical fluctuations in the x-ray to light conversion process, number of emitted light photons, output light spatial distribution) with previous published experimental data on Gd{sub 2}O{sub 2}S:Tb phosphor material (Kodak Min-R screen). Results showed the dependence of the modulation transfer function (MTF) on phosphor grain size and material packing density. It was predicted that granular Gd{sub 2}O{sub 2}S:Tb screens of high packing density and small grain size may exhibit considerably better resolution and light emission properties than the conventional Gd{sub 2}O{sub 2}S:Tb screens, under similar conditions (x-ray incident energy, screen thickness)

  20. PEAT ACCRETION HISTORIES DURING THE PAST 6000 YEARS IN MARSHES OF THE SACRAMENTO - SAN JOAQUIN DELTA, CALIFORNIA, USA

    SciTech Connect (OSTI)

    Drexler, J Z; de Fontaine, C S; Brown, T A

    2009-07-20

    Peat cores were collected in 4 remnant marsh islands and 4 drained, farmed islands throughout the Sacramento - San Joaquin Delta of California in order to characterize the peat accretion history of this region. Radiocarbon age determination of marsh macrofossils at both marsh and farmed islands showed that marshes in the central and western Delta started forming between 6030 and 6790 cal yr BP. Age-depth models for three marshes were constructed using cubic smooth spline regression models. The resulting spline fit models were used to estimate peat accretion histories for the marshes. Estimated accretion rates range from 0.03 to 0.49 cm yr{sup -1} for the marsh sites. The highest accretion rates are at Browns Island, a marsh at the confluence of the Sacramento and San Joaquin rivers. Porosity was examined in the peat core from Franks Wetland, one of the remnant marsh sites. Porosity was greater than 90% and changed little with depth indicating that autocompaction was not an important process in the peat column. The mean contribution of organic matter to soil volume at the marsh sites ranges from 6.15 to 9.25% with little variability. In contrast, the mean contribution of inorganic matter to soil volume ranges from 1.40 to 8.45% with much greater variability, especially in sites situated in main channels. These results suggest that marshes in the Delta can be viewed as largely autochthonous vs. allochthonous in character. Autochthonous sites are largely removed from watershed processes, such as sediment deposition and scour, and are dominated by organic production. Allochthonous sites have greater fluctuations in accretion rates due to the variability of inorganic inputs from the watershed. A comparison of estimated vertical accretion rates with 20th century rates of global sea-level rise shows that currently marshes are maintaining their positions in the tidal frame, yet this offers little assurance of sustainability under scenarios of increased sea-level rise in

  1. SU-E-T-586: Field Size Dependence of Output Factor for Uniform Scanning Proton Beams: A Comparison of TPS Calculation, Measurement and Monte Carlo Simulation

    SciTech Connect (OSTI)

    Zheng, Y; Singh, H; Islam, M

    2014-06-01

    Purpose: Output dependence on field size for uniform scanning beams, and the accuracy of treatment planning system (TPS) calculation are not well studied. The purpose of this work is to investigate the dependence of output on field size for uniform scanning beams and compare it among TPS calculation, measurements and Monte Carlo simulations. Methods: Field size dependence was studied using various field sizes between 2.5 cm diameter to 10 cm diameter. The field size factor was studied for a number of proton range and modulation combinations based on output at the center of spread out Bragg peak normalized to a 10 cm diameter field. Three methods were used and compared in this study: 1) TPS calculation, 2) ionization chamber measurement, and 3) Monte Carlos simulation. The XiO TPS (Electa, St. Louis) was used to calculate the output factor using a pencil beam algorithm; a pinpoint ionization chamber was used for measurements; and the Fluka code was used for Monte Carlo simulations. Results: The field size factor varied with proton beam parameters, such as range, modulation, and calibration depth, and could decrease over 10% from a 10 cm to 3 cm diameter field for a large range proton beam. The XiO TPS predicted the field size factor relatively well at large field size, but could differ from measurements by 5% or more for small field and large range beams. Monte Carlo simulations predicted the field size factor within 1.5% of measurements. Conclusion: Output factor can vary largely with field size, and needs to be accounted for accurate proton beam delivery. This is especially important for small field beams such as in stereotactic proton therapy, where the field size dependence is large and TPS calculation is inaccurate. Measurements or Monte Carlo simulations are recommended for output determination for such cases.

  2. A jewel in the desert: BHP Billiton's San Juan underground mine

    SciTech Connect (OSTI)

    Buchsbaum, L.

    2007-12-15

    The Navajo Nation is America's largest native American tribe by population and acreage, and is blessed with large tracks of good coal deposits. BHP Billiton's New Mexico Coal Co. is the largest in the Navajo regeneration area. The holdings comprise the San Juan underground mine, the La Plata surface mine, now in reclamation, and the expanding Navajo surface mine. The article recounts the recent history of the mines. It stresses the emphasis on sensitivity to and helping to sustain tribal culture, and also on safety. San Juan's longwall system is unique to the nation. It started up as an automated system from the outset. Problems caused by hydrogen sulfide are being tackled. San Juan has a bleederless ventilation system to minimise the risk of spontaneous combustion of methane and the atmospheric conditions in the mine are heavily monitored, especially within the gob areas. 3 photos.

  3. Influence of uplift on oil migration: Tulare heavy oil accumulations, west side San Joaquin Valley, California

    SciTech Connect (OSTI)

    Chamberlain, E.R.; Madrid, V.M.

    1986-07-01

    Shallow (2000 ft), heavy (11/sup 0/-14/sup 0/ API) oil accumulations within the Pleistocene, nonmarine, Tulare sands along the west side of the San Joaquin Valley represent major thermal enhanced oil recovery (EOR) objectives. These low-pressure reservoirs display a variety of petrophysical characteristics indicating a complex history of oil migration resulting from uplift of the Tulare reservoirs above the regional ground-water table (RGT). In the Cymric-McKittrick area, it is possible to correlate Tulare outcrops with subsurface log data and determine the relationship between oil saturation, structural elevation, and proximity to the present RGT. The observed relationship is that economic oil saturations (S/sub 0/ = 30-75%) occur in structural lows and grade updip to reduced oil saturations (S/sub 0/ = 0-30%). The equivalent sands above the RGT exhibit formation density log-compensated neutron log (FDC/CNL) cross-over. Basinward, as the entire Tulare reservoir dips below the RGT, it exhibits characteristics of conventional reservoirs, such as high water saturations in structural lows, grading upward to increased oil saturations in structural highs. The authors present the following model to explain these observations. (1) Oil migrated into Tulare sands and originally filled all stratigraphic/structural traps below the paleo-RGT. (2) Subsequent uplift of the Tulare reservoirs above the paleo-RGT resulted in gravity drainage of original accumulations into structural lows. (3) Washing of the oils by repeated ground-water fluctuations along with biodegradation resulted in the essentially immobile Tulare heavy oil accumulations observed today.

  4. Quantum Monte Carlo calculation of the binding energy of the beryllium dimer

    SciTech Connect (OSTI)

    Deible, Michael J.; Kessler, Melody; Gasperich, Kevin E.; Jordan, Kenneth D.

    2015-08-28

    The accurate calculation of the binding energy of the beryllium dimer is a challenging theoretical problem. In this study, the binding energy of Be{sub 2} is calculated using the diffusion Monte Carlo (DMC) method, using single Slater determinant and multiconfigurational trial functions. DMC calculations using single-determinant trial wave functions of orbitals obtained from density functional theory calculations overestimate the binding energy, while DMC calculations using Hartree-Fock or CAS(4,8), complete active space trial functions significantly underestimate the binding energy. In order to obtain an accurate value of the binding energy of Be{sub 2} from DMC calculations, it is necessary to employ trial functions that include excitations outside the valence space. Our best estimate DMC result for the binding energy of Be{sub 2}, obtained by using configuration interaction trial functions and extrapolating in the threshold for the configurations retained in the trial function, is 908 cm{sup −1}, only slightly below the 935 cm{sup −1} value derived from experiment.

  5. SU-E-T-188: Film Dosimetry Verification of Monte Carlo Generated Electron Treatment Plans

    SciTech Connect (OSTI)

    Enright, S; Asprinio, A; Lu, L

    2014-06-01

    Purpose: The purpose of this study was to compare dose distributions from film measurements to Monte Carlo generated electron treatment plans. Irradiation with electrons offers the advantages of dose uniformity in the target volume and of minimizing the dose to deeper healthy tissue. Using the Monte Carlo algorithm will improve dose accuracy in regions with heterogeneities and irregular surfaces. Methods: Dose distributions from GafChromic{sup } EBT3 films were compared to dose distributions from the Electron Monte Carlo algorithm in the Eclipse{sup } radiotherapy treatment planning system. These measurements were obtained for 6MeV, 9MeV and 12MeV electrons at two depths. All phantoms studied were imported into Eclipse by CT scan. A 1 cm thick solid water template with holes for bonelike and lung-like plugs was used. Different configurations were used with the different plugs inserted into the holes. Configurations with solid-water plugs stacked on top of one another were also used to create an irregular surface. Results: The dose distributions measured from the film agreed with those from the Electron Monte Carlo treatment plan. Accuracy of Electron Monte Carlo algorithm was also compared to that of Pencil Beam. Dose distributions from Monte Carlo had much higher pass rates than distributions from Pencil Beam when compared to the film. The pass rate for Monte Carlo was in the 80%99% range, where the pass rate for Pencil Beam was as low as 10.76%. Conclusion: The dose distribution from Monte Carlo agreed with the measured dose from the film. When compared to the Pencil Beam algorithm, pass rates for Monte Carlo were much higher. Monte Carlo should be used over Pencil Beam for regions with heterogeneities and irregular surfaces.

  6. Bottom-up, decision support system development : a wetlandsalinity management application in California's San Joaquin Valley

    SciTech Connect (OSTI)

    Quinn, Nigel W.T.

    2006-05-10

    Seasonally managed wetlands in the Grasslands Basin ofCalifornia's San Joaquin Valley provide food and shelter for migratorywildfowl during winter months and sport for waterfowl hunters during theannual duck season. Surface water supply to these wetland contain saltwhich, when drained to the San Joaquin River during the annual drawdownperiod, negatively impacts downstream agricultural riparian waterdiverters. Recent environmental regulation, limiting discharges salinityto the San Joaquin River and primarily targeting agricultural non-pointsources, now addresses return flows from seasonally managed wetlands.Real-time water quality management has been advocated as a means ofmatching wetland return flows to the assimilative capacity of the SanJoaquin River. Past attempts to build environmental monitoring anddecision support systems to implement this concept have failed forreasons that are discussed in this paper. These reasons are discussed inthe context of more general challenges facing the successfulimplementation of environmental monitoring, modelling and decisionsupport systems. The paper then provides details of a current researchand development project which will ultimately provide wetland managerswith the means of matching salt exports with the available assimilativecapacity of the San Joaquin River, when fully implemented. Manipulationof the traditional wetland drawdown comes at a potential cost to thesustainability of optimal wetland moist soil plant habitat in thesewetlands - hence the project provides appropriate data and a feedback andresponse mechanism for wetland managers to balance improvements to SanJoaquin River quality with internally-generated information on the healthof the wetland resource. The author concludes the paper by arguing thatthe architecture of the current project decision support system, whencoupled with recent advances in environmental data acquisition, dataprocessing and information dissemination technology, holds significantpromise

  7. Energy geothermal; San Emidio Geothermal Area; 3D Model geothermal...

    Office of Scientific and Technical Information (OSTI)

    description: Trainor-Guitton, Hoversten,Nordquist, Intani, Value of information analysis using geothermal field data: accounting for multiple interpretations & determining...

  8. SANS (small angle neutron scattering) measurement of deuterium-dislocation correlation in palladium

    SciTech Connect (OSTI)

    Heuser, B.J.; Summerfield, G.C.; King, J.S. ); Epperson, J.E. )

    1989-11-01

    Small angle neutron scattering (SANS) measurements have been made on deformed polycrystal palladium samples with and without deuterium dissolved in the solution phase ({alpha}) at room temperature. Concentrations were held constant during SANS experiments by an equilibrium gas pressure cell. The difference scattering cross section for the same sample with and without deuterium loading has a 1/Q behavior (Q=4{pi}/{lambda} sin{theta}/2) at intermediate values of Q. At very low values of Q the dependence is much stronger than 1/Q. The 1/Q behavior is attributed to deuterium trapping close to long dislocation cores forming rod-like scattering structures.

  9. California--San Joaquin Basin Onshore Natural Gas Plant Liquids, Expected

    U.S. Energy Information Administration (EIA) Indexed Site

    Future Production (Million Barrels) San Joaquin Basin Onshore Natural Gas Plant Liquids, Expected Future Production (Million Barrels) California--San Joaquin Basin Onshore Natural Gas Plant Liquids, Expected Future Production (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 74 1980's 74 51 118 111 100 115 104 102 96 91 1990's 82 71 79 81 71 77 77 79 57 59 2000's 63 51 68 78 94 110 100 103 97 113 2010's 98 78 77 85 96

  10. EECBG Success Story: New San Antonio Airport Terminal Generating Clean Power

    Broader source: Energy.gov [DOE]

    In early 2010, the City of San Antonio’s Energy Efficiency and Conservation Block Grant (EECBG) program staff quickly realized a golden opportunity lay right at their fingertips. The opening of the new San Antonio International Airport terminal was just months away and the team knew that a solar photovoltaic (PV) system at the airport would offer a highly visible location to showcase renewable energy technologies, help the city accelerate its “Mission Verde” sustainable development plan and create local jobs. Learn more.

  11. Microsoft Word - Transcript_Pre-2009 Congestion Study_San Francisco2.doc

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    /11/2008 San Francisco, CA Page 1 U.S. Department of Energy Pre-Congestion Study Regional Workshops for the 2009 National Electric Congestion Study San Francisco, CA June 11, 2008 9:00 a.m.-12:30 p.m. Transcript David Meyer: Well, good morning again, ladies and gentlemen, and thank you for coming to DOE's regional workshop on transmission congestion, and welcome also to those who have logged onto the webcast. Because of the, this program is being webcast, we will adhere strictly to our schedule

  12. Energy Transition Initiative: Island Energy Snapshot - San Andres and Providencia (Fact Sheet); NREL(National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    2015-03-01

    This profile provides a snapshot of the energy landscape of the Archipelago of San Andres, Providencia, and Santa Catalina (unpopulated), also known as San Andres and Providencia, which is equidistant between Costa Rica and Jamaica and 775 kilometers northwest of Colombia. The archipelago is part of Colombia, though Nicaragua has also laid claim to it.

  13. Quantifying the number of color centers in single fluorescent nanodiamonds by photon correlation spectroscopy and Monte Carlo simulation

    SciTech Connect (OSTI)

    Hui, Y.Y.; Chang, Y.-R.; Lee, H.-Y.; Chang, H.-C.; Lim, T.-S.; Fann Wunshain

    2009-01-05

    The number of negatively charged nitrogen-vacancy centers (N-V){sup -} in fluorescent nanodiamond (FND) has been determined by photon correlation spectroscopy and Monte Carlo simulations at the single particle level. By taking account of the random dipole orientation of the multiple (N-V){sup -} fluorophores and simulating the probability distribution of their effective numbers (N{sub e}), we found that the actual number (N{sub a}) of the fluorophores is in linear correlation with N{sub e}, with correction factors of 1.8 and 1.2 in measurements using linearly and circularly polarized lights, respectively. We determined N{sub a}=8{+-}1 for 28 nm FND particles prepared by 3 MeV proton irradiation.

  14. Petrophysical Analysis and Geographic Information System for San Juan Basin Tight Gas Reservoirs

    SciTech Connect (OSTI)

    Martha Cather; Robert Lee; Robert Balch; Tom Engler; Roger Ruan; Shaojie Ma

    2008-10-01

    The primary goal of this project is to increase the availability and ease of access to critical data on the Mesaverde and Dakota tight gas reservoirs of the San Juan Basin. Secondary goals include tuning well log interpretations through integration of core, water chemistry and production analysis data to help identify bypassed pay zones; increased knowledge of permeability ratios and how they affect well drainage and thus infill drilling plans; improved time-depth correlations through regional mapping of sonic logs; and improved understanding of the variability of formation waters within the basin through spatial analysis of water chemistry data. The project will collect, integrate, and analyze a variety of petrophysical and well data concerning the Mesaverde and Dakota reservoirs of the San Juan Basin, with particular emphasis on data available in the areas defined as tight gas areas for purpose of FERC. A relational, geo-referenced database (a geographic information system, or GIS) will be created to archive this data. The information will be analyzed using neural networks, kriging, and other statistical interpolation/extrapolation techniques to fine-tune regional well log interpretations, improve pay zone recognition from old logs or cased-hole logs, determine permeability ratios, and also to analyze water chemistries and compatibilities within the study area. This single-phase project will be accomplished through four major tasks: Data Collection, Data Integration, Data Analysis, and User Interface Design. Data will be extracted from existing databases as well as paper records, then cleaned and integrated into a single GIS database. Once the data warehouse is built, several methods of data analysis will be used both to improve pay zone recognition in single wells, and to extrapolate a variety of petrophysical properties on a regional basis. A user interface will provide tools to make the data and results of the study accessible and useful. The final deliverable

  15. Quantum Monte Carlo Calculations Applied to Magnetic Molecules

    SciTech Connect (OSTI)

    Larry Engelhardt

    2006-08-09

    We have calculated the equilibrium thermodynamic properties of Heisenberg spin systems using a quantum Monte Carlo (QMC) method. We have used some of these systems as models to describe recently synthesized magnetic molecules, and-upon comparing the results of these calculations with experimental data-have obtained accurate estimates for the basic parameters of these models. We have also performed calculations for other systems that are of more general interest, being relevant both for existing experimental data and for future experiments. Utilizing the concept of importance sampling, these calculations can be carried out in an arbitrarily large quantum Hilbert space, while still avoiding any approximations that would introduce systematic errors. The only errors are statistical in nature, and as such, their magnitudes are accurately estimated during the course of a simulation. Frustrated spin systems present a major challenge to the QMC method, nevertheless, in many instances progress can be made. In this chapter, the field of magnetic molecules is introduced, paying particular attention to the characteristics that distinguish magnetic molecules from other systems that are studied in condensed matter physics. We briefly outline the typical path by which we learn about magnetic molecules, which requires a close relationship between experiments and theoretical calculations. The typical experiments are introduced here, while the theoretical methods are discussed in the next chapter. Each of these theoretical methods has a considerable limitation, also described in Chapter 2, which together serve to motivate the present work. As is shown throughout the later chapters, the present QMC method is often able to provide useful information where other methods fail. In Chapter 3, the use of Monte Carlo methods in statistical physics is reviewed, building up the fundamental ideas that are necessary in order to understand the method that has been used in this work. With these

  16. Complete Monte Carlo Simulation of Neutron Scattering Experiments

    SciTech Connect (OSTI)

    Drosg, M.

    2011-12-13

    In the far past, it was not possible to accurately correct for the finite geometry and the finite sample size of a neutron scattering set-up. The limited calculation power of the ancient computers as well as the lack of powerful Monte Carlo codes and the limitation in the data base available then prevented a complete simulation of the actual experiment. Using e.g. the Monte Carlo neutron transport code MCNPX [1], neutron scattering experiments can be simulated almost completely with a high degree of precision using a modern PC, which has a computing power that is ten thousand times that of a super computer of the early 1970s. Thus, (better) corrections can also be obtained easily for previous published data provided that these experiments are sufficiently well documented. Better knowledge of reference data (e.g. atomic mass, relativistic correction, and monitor cross sections) further contributes to data improvement. Elastic neutron scattering experiments from liquid samples of the helium isotopes performed around 1970 at LANL happen to be very well documented. Considering that the cryogenic targets are expensive and complicated, it is certainly worthwhile to improve these data by correcting them using this comparatively straightforward method. As two thirds of all differential scattering cross section data of {sup 3}He(n,n){sup 3}He are connected to the LANL data, it became necessary to correct the dependent data measured in Karlsruhe, Germany, as well. A thorough simulation of both the LANL experiments and the Karlsruhe experiment is presented, starting from the neutron production, followed by the interaction in the air, the interaction with the cryostat structure, and finally the scattering medium itself. In addition, scattering from the hydrogen reference sample was simulated. For the LANL data, the multiple scattering corrections are smaller by a factor of five at least, making this work relevant. Even more important are the corrections to the Karlsruhe data

  17. Reverse Monte Carlo simulation of Se{sub 80}Te{sub 20} and Se{sub 80}Te{sub 15}Sb{sub 5} glasses

    SciTech Connect (OSTI)

    Abdel-Baset, A. M.; Rashad, M.; Moharram, A. H.

    2013-12-16

    Two-dimensional Monte Carlo of the total pair distribution functions g(r) is determined for Se{sub 80}Te{sub 20} and Se{sub 80}Te{sub 15}Sb{sub 5} alloys, and then it used to assemble the three-dimensional atomic configurations using the reverse Monte Carlo simulation. The partial pair distribution functions g{sub ij}(r) indicate that the basic structure unit in the Se{sub 80}Te{sub 15}Sb{sub 5} glass is di-antimony tri-selenide units connected together through Se-Se and Se-Te chain. The structure of Se{sub 80}Te{sub 20} alloys is a chain of Se-Te and Se-Se in addition to some rings of Se atoms.

  18. DOE Zero Energy Ready Home Case Study: KB Home, San Marcos, CA, Production Home

    Broader source: Energy.gov [DOE]

    Case study of a DOE Zero Energy Ready Home in San Marcos, CA that scored HERS 52 without PV, -4 with PV. This 52,778-square-foot production home has R-20 advanced framed walls with batts plus rigid foam sheathing, an air-source heat pump for central air in sealed attic, solar water heating and 100% LED lighting.

  19. EA-1697: San Joaquin Valley Right-of-Way Project, California

    Broader source: Energy.gov [DOE]

    DOE’s Western Area Power Administration is preparing this EA to evaluate the environmental impacts of right-of-way maintenance (including facility inspection and repair, vegetation management, and equipment upgrades for transmission lines and associated rights-or-way, access roads, substations, and a maintenance facility) in the San Joaquin Valley in California.

  20. Best Practices Case Study: Imagine Homes - Stillwater Ranch, San Antonio, TX

    SciTech Connect (OSTI)

    none,

    2011-04-01

    This case study describes Imagine Homes, who met Builders Challenge criteria on more than 200 homes in San Antonio with rigid foam exterior sheathing, ducts and air handler in conditioned space in a spray-foam insulated attic, and high-efficiency HVAC, windows, and appliances.

  1. EIS-0416: Ivanpah Solar Electric Generating System, San Bernardino County, California

    Broader source: Energy.gov [DOE]

    This EIS analyzes DOE's decision to support a proposal from Solar Partners I, II, IV, and VIII, limited liability corporations formed by BrightSource Energy (BrightSource), to construct and operate a solar thermal electric generating facility in San Bernardino County, California on BLM Land.

  2. Q&A With Byron Washom of the University of California at San Diego

    Broader source: Energy.gov [DOE]

    Bryan Washom was setting world records for efficiency in solar power long before it was cool. And now, as the Director of Strategic Initiatives at the University of California at San Diego, he's using that drive to bring clean energy technology to the marketplace.

  3. EECBG Success Story: San Antonio Small Businesses "Seeing the Light" with Energy Upgrades

    Broader source: Energy.gov [DOE]

    As part of San Antonio’s “Mission Verde” initiative, the city launched the City Lights Small Business Lighting Retrofit Program using Recovery Act funding through the Energy Department’s Energy Efficiency and Conservation Block Grant (EECBG) program. Learn more.

  4. Kokes Awards for the 21st NAM Meeting (San Francisco, CA, 2009)

    SciTech Connect (OSTI)

    Katz, Alex

    2009-08-31

    The PI in this project Alexander Katz, UC Berkeley (askatz@berkeley.edu), in conjunction with the Kokes Awards subcommittee and conference organizing committee, used DOE grant DE-FG-02-08ER15993 to partially offset costs of attending the 21st North American Catalysis Society in San Francisco, California, for 30 graduate students from the United States

  5. PROJECT PROFILE: City and County of San Francisco Department of the Environment (Solar Market Pathways)

    Broader source: Energy.gov [DOE]

    San Francisco’s Solar+Storage for Resiliency project serves as a national model for integrating solar and energy storage into existing disaster preparedness plans. The project team is working closely with stakeholders to overcome regulatory, financial, and technical barriers to create a roadmap for deploying solar with storage for resilience.

  6. San Antonio, Texas: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE)

    Office of Energy Efficiency and Renewable Energy (EERE)

    This brochure provides an overview of the challenges and successes of San Antonio, TX, a 2008 Solar America City awardee, on the path toward becoming a solar-powered community. Accomplishments, case studies, key lessons learned, and local resource information are given.

  7. San Francisco, California: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE)

    Office of Energy Efficiency and Renewable Energy (EERE)

    This brochure provides an overview of the challenges and successes of San Francisco, CA, a 2007 Solar America City awardee, on the path toward becoming a solar-powered community. Accomplishments, case studies, key lessons learned, and local resource information are given.

  8. San Diego, California: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE)

    Office of Energy Efficiency and Renewable Energy (EERE)

    This brochure provides an overview of the challenges and successes of San Diego, CA, a 2007 Solar America City awardee, on the path toward becoming a solar-powered community. Accomplishments, case studies, key lessons learned, and local resource information are given.

  9. CONTINUOUS-ENERGY MONTE CARLO METHODS FOR CALCULATING GENERALIZED RESPONSE SENSITIVITIES USING TSUNAMI-3D

    SciTech Connect (OSTI)

    Perfetti, Christopher M; Rearden, Bradley T

    2014-01-01

    This work introduces a new approach for calculating sensitivity coefficients for generalized neutronic responses to nuclear data uncertainties using continuous-energy Monte Carlo methods. The approach presented in this paper, known as the GEAR-MC method, allows for the calculation of generalized sensitivity coefficients for multiple responses in a single Monte Carlo calculation with no nuclear data perturbations or knowledge of nuclear covariance data. The theory behind the GEAR-MC method is presented here, and proof of principle is demonstrated by using the GEAR-MC method to calculate sensitivity coefficients for responses in several 3D, continuous-energy Monte Carlo applications.

  10. Status of the MORSE multigroup Monte Carlo radiation transport code

    SciTech Connect (OSTI)

    Emmett, M.B.

    1993-06-01

    There are two versions of the MORSE multigroup Monte Carlo radiation transport computer code system at Oak Ridge National Laboratory. MORSE-CGA is the most well-known and has undergone extensive use for many years. MORSE-SGC was originally developed in about 1980 in order to restructure the cross-section handling and thereby save storage. However, with the advent of new computer systems having much larger storage capacity, that aspect of SGC has become unnecessary. Both versions use data from multigroup cross-section libraries, although in somewhat different formats. MORSE-SGC is the version of MORSE that is part of the SCALE system, but it can also be run stand-alone. Both CGA and SGC use the Multiple Array System (MARS) geometry package. In the last six months the main focus of the work on these two versions has been on making them operational on workstations, in particular, the IBM RISC 6000 family. A new version of SCALE for workstations is being released to the Radiation Shielding Information Center (RSIC). MORSE-CGA, Version 2.0, is also being released to RSIC. Both SGC and CGA have undergone other revisions recently. This paper reports on the current status of the MORSE code system.

  11. Pseudopotentials for quantum Monte Carlo studies of transition metal oxides

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Krogel, Jaron T.; Santana Palacio, Juan A.; Reboredo, Fernando A.

    2016-02-22

    Quantum Monte Carlo (QMC) calculations of transition metal oxides are partially limited by the availability of high-quality pseudopotentials that are both accurate in QMC and compatible with major plane-wave electronic structure codes. We have generated a set of neon-core pseudopotentials with small cutoff radii for the early transition metal elements Sc to Zn within the local density approximation of density functional theory. The pseudopotentials have been directly tested for accuracy within QMC by calculating the first through fourth ionization potentials of the isolated transition metal (M) atoms and the binding curve of each M-O dimer. We find the ionization potentialsmore » to be accurate to 0.16(1) eV, on average, relative to experiment. The equilibrium bond lengths of the dimers are within 0.5(1)% of experimental values, on average, and the binding energies are also typically accurate to 0.18(3) eV. The level of accuracy we find for atoms and dimers is comparable to what has recently been observed for bulk metals and oxides using the same pseudopotentials. Our QMC pseudopotential results compare well with the findings of previous QMC studies and benchmark quantum chemical calculations.« less

  12. High order Chin actions in path integral Monte Carlo

    SciTech Connect (OSTI)

    Sakkos, K.; Casulleras, J.; Boronat, J.

    2009-05-28

    High order actions proposed by Chin have been used for the first time in path integral Monte Carlo simulations. Contrary to the Takahashi-Imada action, which is accurate to the fourth order only for the trace, the Chin action is fully fourth order, with the additional advantage that the leading fourth-order error coefficients are finely tunable. By optimizing two free parameters entering in the new action, we show that the time step error dependence achieved is best fitted with a sixth order law. The computational effort per bead is increased but the total number of beads is greatly reduced and the efficiency improvement with respect to the primitive approximation is approximately a factor of 10. The Chin action is tested in a one-dimensional harmonic oscillator, a H{sub 2} drop, and bulk liquid {sup 4}He. In all cases a sixth-order law is obtained with values of the number of beads that compare well with the pair action approximation in the stringent test of superfluid {sup 4}He.

  13. Reduced Variance for Material Sources in Implicit Monte Carlo

    SciTech Connect (OSTI)

    Urbatsch, Todd J.

    2012-06-25

    Implicit Monte Carlo (IMC), a time-implicit method due to Fleck and Cummings, is used for simulating supernovae and inertial confinement fusion (ICF) systems where x-rays tightly and nonlinearly interact with hot material. The IMC algorithm represents absorption and emission within a timestep as an effective scatter. Similarly, the IMC time-implicitness splits off a portion of a material source directly into the radiation field. We have found that some of our variance reduction and particle management schemes will allow large variances in the presence of small, but important, material sources, as in the case of ICF hot electron preheat sources. We propose a modification of our implementation of the IMC method in the Jayenne IMC Project. Instead of battling the sampling issues associated with a small source, we bypass the IMC implicitness altogether and simply deterministically update the material state with the material source if the temperature of the spatial cell is below a user-specified cutoff. We describe the modified method and present results on a test problem that show the elimination of variance for small sources.

  14. Random Number Generation for Petascale Quantum Monte Carlo

    SciTech Connect (OSTI)

    Ashok Srinivasan

    2010-03-16

    The quality of random number generators can affect the results of Monte Carlo computations, especially when a large number of random numbers are consumed. Furthermore, correlations present between different random number streams in a parallel computation can further affect the results. The SPRNG software, which the author had developed earlier, has pseudo-random number generators (PRNGs) capable of producing large numbers of streams with large periods. However, they had been empirically tested on only thousand streams earlier. In the work summarized here, we tested the SPRNG generators with over a hundred thousand streams, involving over 10^14 random numbers per test, on some tests. We also tested the popular Mersenne Twister. We believe that these are the largest tests of PRNGs, both in terms of the numbers of streams tested and the number of random numbers tested. We observed defects in some of these generators, including the Mersenne Twister, while a few generators appeared to perform well. We also corrected an error in the implementation of one of the SPRNG generators.

  15. Non-adiabatic molecular dynamics by accelerated semiclassical Monte Carlo

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    White, Alexander J.; Gorshkov, Vyacheslav N.; Tretiak, Sergei; Mozyrsky, Dmitry

    2015-07-07

    Non-adiabatic dynamics, where systems non-radiatively transition between electronic states, plays a crucial role in many photo-physical processes, such as fluorescence, phosphorescence, and photoisomerization. Methods for the simulation of non-adiabatic dynamics are typically either numerically impractical, highly complex, or based on approximations which can result in failure for even simple systems. Recently, the Semiclassical Monte Carlo (SCMC) approach was developed in an attempt to combine the accuracy of rigorous semiclassical methods with the efficiency and simplicity of widely used surface hopping methods. However, while SCMC was found to be more efficient than other semiclassical methods, it is not yet as efficientmore » as is needed to be used for large molecular systems. Here, we have developed two new methods: the accelerated-SCMC and the accelerated-SCMC with re-Gaussianization, which reduce the cost of the SCMC algorithm up to two orders of magnitude for certain systems. In many cases shown here, the new procedures are nearly as efficient as the commonly used surface hopping schemes, with little to no loss of accuracy. This implies that these modified SCMC algorithms will be of practical numerical solutions for simulating non-adiabatic dynamics in realistic molecular systems.« less

  16. Ensemble bayesian model averaging using markov chain Monte Carlo sampling

    SciTech Connect (OSTI)

    Vrugt, Jasper A; Diks, Cees G H; Clark, Martyn P

    2008-01-01

    Bayesian model averaging (BMA) has recently been proposed as a statistical method to calibrate forecast ensembles from numerical weather models. Successful implementation of BMA however, requires accurate estimates of the weights and variances of the individual competing models in the ensemble. In their seminal paper (Raftery etal. Mon Weather Rev 133: 1155-1174, 2(05)) has recommended the Expectation-Maximization (EM) algorithm for BMA model training, even though global convergence of this algorithm cannot be guaranteed. In this paper, we compare the performance of the EM algorithm and the recently developed Differential Evolution Adaptive Metropolis (DREAM) Markov Chain Monte Carlo (MCMC) algorithm for estimating the BMA weights and variances. Simulation experiments using 48-hour ensemble data of surface temperature and multi-model stream-flow forecasts show that both methods produce similar results, and that their performance is unaffected by the length of the training data set. However, MCMC simulation with DREAM is capable of efficiently handling a wide variety of BMA predictive distributions, and provides useful information about the uncertainty associated with the estimated BMA weights and variances.

  17. Monte Carlo Simulations of Cosmic Rays Hadronic Interactions

    SciTech Connect (OSTI)

    Aguayo Navarrete, Estanislao; Orrell, John L.; Kouzes, Richard T.

    2011-04-01

    This document describes the construction and results of the MaCoR software tool, developed to model the hadronic interactions of cosmic rays with different geometries of materials. The ubiquity of cosmic radiation in the environment results in the activation of stable isotopes, referred to as cosmogenic activities. The objective is to use this application in conjunction with a model of the MAJORANA DEMONSTRATOR components, from extraction to deployment, to evaluate cosmogenic activation of such components before and after deployment. The cosmic ray showers include several types of particles with a wide range of energy (MeV to GeV). It is infeasible to compute an exact result with a deterministic algorithm for this problem; Monte Carlo simulations are a more suitable approach to model cosmic ray hadronic interactions. In order to validate the results generated by the application, a test comparing experimental muon flux measurements and those predicted by the application is presented. The experimental and simulated results have a deviation of 3%.

  18. Improving computational efficiency of Monte Carlo simulations with variance reduction

    SciTech Connect (OSTI)

    Turner, A.

    2013-07-01

    CCFE perform Monte-Carlo transport simulations on large and complex tokamak models such as ITER. Such simulations are challenging since streaming and deep penetration effects are equally important. In order to make such simulations tractable, both variance reduction (VR) techniques and parallel computing are used. It has been found that the application of VR techniques in such models significantly reduces the efficiency of parallel computation due to 'long histories'. VR in MCNP can be accomplished using energy-dependent weight windows. The weight window represents an 'average behaviour' of particles, and large deviations in the arriving weight of a particle give rise to extreme amounts of splitting being performed and a long history. When running on parallel clusters, a long history can have a detrimental effect on the parallel efficiency - if one process is computing the long history, the other CPUs complete their batch of histories and wait idle. Furthermore some long histories have been found to be effectively intractable. To combat this effect, CCFE has developed an adaptation of MCNP which dynamically adjusts the WW where a large weight deviation is encountered. The method effectively 'de-optimises' the WW, reducing the VR performance but this is offset by a significant increase in parallel efficiency. Testing with a simple geometry has shown the method does not bias the result. This 'long history method' has enabled CCFE to significantly improve the performance of MCNP calculations for ITER on parallel clusters, and will be beneficial for any geometry combining streaming and deep penetration effects. (authors)

  19. MARKOV CHAIN MONTE CARLO POSTERIOR SAMPLING WITH THE HAMILTONIAN METHOD

    SciTech Connect (OSTI)

    K. HANSON

    2001-02-01

    The Markov Chain Monte Carlo technique provides a means for drawing random samples from a target probability density function (pdf). MCMC allows one to assess the uncertainties in a Bayesian analysis described by a numerically calculated posterior distribution. This paper describes the Hamiltonian MCMC technique in which a momentum variable is introduced for each parameter of the target pdf. In analogy to a physical system, a Hamiltonian H is defined as a kinetic energy involving the momenta plus a potential energy {var_phi}, where {var_phi} is minus the logarithm of the target pdf. Hamiltonian dynamics allows one to move along trajectories of constant H, taking large jumps in the parameter space with relatively few evaluations of {var_phi} and its gradient. The Hamiltonian algorithm alternates between picking a new momentum vector and following such trajectories. The efficiency of the Hamiltonian method for multidimensional isotropic Gaussian pdfs is shown to remain constant at around 7% for up to several hundred dimensions. The Hamiltonian method handles correlations among the variables much better than the standard Metropolis algorithm. A new test, based on the gradient of {var_phi}, is proposed to measure the convergence of the MCMC sequence.

  20. Non-adiabatic molecular dynamics by accelerated semiclassical Monte Carlo

    SciTech Connect (OSTI)

    White, Alexander J.; Gorshkov, Vyacheslav N.; Tretiak, Sergei; Mozyrsky, Dmitry

    2015-07-07

    Non-adiabatic dynamics, where systems non-radiatively transition between electronic states, plays a crucial role in many photo-physical processes, such as fluorescence, phosphorescence, and photoisomerization. Methods for the simulation of non-adiabatic dynamics are typically either numerically impractical, highly complex, or based on approximations which can result in failure for even simple systems. Recently, the Semiclassical Monte Carlo (SCMC) approach was developed in an attempt to combine the accuracy of rigorous semiclassical methods with the efficiency and simplicity of widely used surface hopping methods. However, while SCMC was found to be more efficient than other semiclassical methods, it is not yet as efficient as is needed to be used for large molecular systems. Here, we have developed two new methods: the accelerated-SCMC and the accelerated-SCMC with re-Gaussianization, which reduce the cost of the SCMC algorithm up to two orders of magnitude for certain systems. In many cases shown here, the new procedures are nearly as efficient as the commonly used surface hopping schemes, with little to no loss of accuracy. This implies that these modified SCMC algorithms will be of practical numerical solutions for simulating non-adiabatic dynamics in realistic molecular systems.

  1. CX-000188: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Texas City San AntonioCX(s) Applied: A9, A11, B2.5, B3.6, B5.1Date: 11/11/2009Location(s): San Antonio, TexasOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

  2. CX-000220: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    California County San DiegoCX(s) Applied: A9, A11, B3.1, B5.1Date: 12/02/2009Location(s): San Diego County, CaliforniaOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

  3. CX-001523: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    County of San Bernardino, California Energy Efficiency and Conservation Block Grants Projects (S)CX(s) Applied: A9, A11, B5.1Date: 03/31/2010Location(s): San Bernardino County, CaliforniaOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

  4. CX-005284: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    New Mexico-County-San JuanCX(s) Applied: A9, B2.5, B5.1Date: 02/09/2011Location(s): San Juan County, New MexicoOffice(s): Energy Efficiency and Renewable Energy

  5. CX-006102: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    California-City-San BernardinoCX(s) Applied: A1, A9, A11, B2.5, B3.6, B5.1Date: 03/26/2010Location(s): San Bernardino, CaliforniaOffice(s): Energy Efficiency and Renewable Energy

  6. CX-006103: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    California-City-San ClementeCX(s) Applied: A1, A9, A11, B1.32, B5.1Date: 03/05/2010Location(s): San Clemente, CaliforniaOffice(s): Energy Efficiency and Renewable Energy

  7. CX-000632: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    San Jose Solar - Enabling Community Participation in Achieving the City's Green Vision GoalsCX(s) Applied: A9Date: 01/21/2010Location(s): San Jose, CaliforniaOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

  8. CX-003951: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    San Diego Gas and Electric Borrego Springs Microgrid Demonstration (Office Component)CX(s) Applied: A1, A9Date: 09/22/2010Location(s): San Diego, CaliforniaOffice(s): Electricity Delivery and Energy Reliability, National Energy Technology Laboratory

  9. CX-003843: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Energy Efficiency Analysis and Upgrade Program for County Facilities - County of San MateoCX(s) Applied: A9, A11, B5.1Date: 09/02/2010Location(s): County of San Mateo, CaliforniaOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

  10. CX-005243: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    California-City-San LeandroCX(s) Applied: A1, A9, B1.32, B2.5, B5.1Date: 02/16/2011Location(s): San Leandro, CaliforniaOffice(s): Energy Efficiency and Renewable Energy

  11. CX-001673: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    City of San Antonio American Recovery and Reinvestment Act (ARRA) - Energy Efficiency and Conservation Block Grant (EECBG) Activity #9CX(s) Applied: A11, B5.1Date: 04/09/2010Location(s): San Antonio, TexasOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

  12. CX-001625: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    City of San Antonio American Recovery and Reinvestment Act - Energy Efficiency and Conservation Block Grant - Activity #7 (S)CX(s) Applied: A9, A11, B5.1Date: 04/07/2010Location(s): San Antonio, TexasOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

  13. A Monte Carlo Analysis of Gas Centrifuge Enrichment Plant Process Load Cell Data

    SciTech Connect (OSTI)

    Garner, James R; Whitaker, J Michael

    2013-01-01

    As uranium enrichment plants increase in number, capacity, and types of separative technology deployed (e.g., gas centrifuge, laser, etc.), more automated safeguards measures are needed to enable the IAEA to maintain safeguards effectiveness in a fiscally constrained environment. Monitoring load cell data can significantly increase the IAEA s ability to efficiently achieve the fundamental safeguards objective of confirming operations as declared (i.e., no undeclared activities), but care must be taken to fully protect the operator s proprietary and classified information related to operations. Staff at ORNL, LANL, JRC/ISPRA, and University of Glasgow are investigating monitoring the process load cells at feed and withdrawal (F/W) stations to improve international safeguards at enrichment plants. A key question that must be resolved is what is the necessary frequency of recording data from the process F/W stations? Several studies have analyzed data collected at a fixed frequency. This paper contributes to load cell process monitoring research by presenting an analysis of Monte Carlo simulations to determine the expected errors caused by low frequency sampling and its impact on material balance calculations.

  14. Hybrid and Parallel Domain-Decomposition Methods Development to Enable Monte Carlo for Reactor Analyses

    SciTech Connect (OSTI)

    Wagner, John C; Mosher, Scott W; Evans, Thomas M; Peplow, Douglas E.; Turner, John A

    2011-01-01

    This paper describes code and methods development at the Oak Ridge National Laboratory focused on enabling high-fidelity, large-scale reactor analyses with Monte Carlo (MC). Current state-of-the-art tools and methods used to perform real commercial reactor analyses have several undesirable features, the most significant of which is the non-rigorous spatial decomposition scheme. Monte Carlo methods, which allow detailed and accurate modeling of the full geometry and are considered the gold standard for radiation transport solutions, are playing an ever-increasing role in correcting and/or verifying the deterministic, multi-level spatial decomposition methodology in current practice. However, the prohibitive computational requirements associated with obtaining fully converged, system-wide solutions restrict the role of MC to benchmarking deterministic results at a limited number of state-points for a limited number of relevant quantities. The goal of this research is to change this paradigm by enabling direct use of MC for full-core reactor analyses. The most significant of the many technical challenges that must be overcome are the slow, non-uniform convergence of system-wide MC estimates and the memory requirements associated with detailed solutions throughout a reactor (problems involving hundreds of millions of different material and tally regions due to fuel irradiation, temperature distributions, and the needs associated with multi-physics code coupling). To address these challenges, our research has focused on the development and implementation of (1) a novel hybrid deterministic/MC method for determining high-precision fluxes throughout the problem space in k-eigenvalue problems and (2) an efficient MC domain-decomposition (DD) algorithm that partitions the problem phase space onto multiple processors for massively parallel systems, with statistical uncertainty estimation. The hybrid method development is based on an extension of the FW-CADIS method, which

  15. Hybrid and Parallel Domain-Decomposition Methods Development to Enable Monte Carlo for Reactor Analyses

    SciTech Connect (OSTI)

    Wagner, John C; Mosher, Scott W; Evans, Thomas M; Peplow, Douglas E.; Turner, John A

    2010-01-01

    This paper describes code and methods development at the Oak Ridge National Laboratory focused on enabling high-fidelity, large-scale reactor analyses with Monte Carlo (MC). Current state-of-the-art tools and methods used to perform ''real'' commercial reactor analyses have several undesirable features, the most significant of which is the non-rigorous spatial decomposition scheme. Monte Carlo methods, which allow detailed and accurate modeling of the full geometry and are considered the ''gold standard'' for radiation transport solutions, are playing an ever-increasing role in correcting and/or verifying the deterministic, multi-level spatial decomposition methodology in current practice. However, the prohibitive computational requirements associated with obtaining fully converged, system-wide solutions restrict the role of MC to benchmarking deterministic results at a limited number of state-points for a limited number of relevant quantities. The goal of this research is to change this paradigm by enabling direct use of MC for full-core reactor analyses. The most significant of the many technical challenges that must be overcome are the slow, non-uniform convergence of system-wide MC estimates and the memory requirements associated with detailed solutions throughout a reactor (problems involving hundreds of millions of different material and tally regions due to fuel irradiation, temperature distributions, and the needs associated with multi-physics code coupling). To address these challenges, our research has focused on the development and implementation of (1) a novel hybrid deterministic/MC method for determining high-precision fluxes throughout the problem space in k-eigenvalue problems and (2) an efficient MC domain-decomposition (DD) algorithm that partitions the problem phase space onto multiple processors for massively parallel systems, with statistical uncertainty estimation. The hybrid method development is based on an extension of the FW-CADIS method

  16. On-the-fly nuclear data processing methods for Monte Carlo simulations of fast spectrum systems

    SciTech Connect (OSTI)

    Walsh, Jon

    2015-08-31

    The presentation summarizes work performed over summer 2015 related to Monte Carlo simulations. A flexible probability table interpolation scheme has been implemented and tested with results comparing favorably to the continuous phase-space on-the-fly approach.

  17. On-the-Fly Doppler Broadening for Monte Carlo Codes (Journal...

    Office of Scientific and Technical Information (OSTI)

    Title: On-the-Fly Doppler Broadening for Monte Carlo Codes Authors: Yesilyurt, G. ; Martin, W. ; Brown, F. 1 ; Univ. of Michigan) 2 ; Los Alamos National Laboratory) 2 + Show ...

  18. Multiscale Monte Carlo equilibration: Pure Yang-Mills theory

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Endres, Michael G.; Brower, Richard C.; Orginos, Kostas; Detmold, William; Pochinsky, Andrew V.

    2015-12-29

    In this study, we present a multiscale thermalization algorithm for lattice gauge theory, which enables efficient parallel generation of uncorrelated gauge field configurations. The algorithm combines standard Monte Carlo techniques with ideas drawn from real space renormalization group and multigrid methods. We demonstrate the viability of the algorithm for pure Yang-Mills gauge theory for both heat bath and hybrid Monte Carlo evolution, and show that it ameliorates the problem of topological freezing up to controllable lattice spacing artifacts.

  19. MONTE CARLO SIMULATION OF METASTABLE OXYGEN PHOTOCHEMISTRY IN COMETARY ATMOSPHERES

    SciTech Connect (OSTI)

    Bisikalo, D. V.; Shematovich, V. I. [Institute of Astronomy of the Russian Academy of Sciences, Moscow (Russian Federation); Grard, J.-C.; Hubert, B. [Laboratory for Planetary and Atmospheric Physics (LPAP), University of Lige, Lige (Belgium); Jehin, E.; Decock, A. [Origines Cosmologiques et Astrophysiques (ORCA), University of Lige (Belgium); Hutsemkers, D. [Extragalactic Astrophysics and Space Observations (EASO), University of Lige (Belgium); Manfroid, J., E-mail: B.Hubert@ulg.ac.be [High Energy Astrophysics Group (GAPHE), University of Lige (Belgium)

    2015-01-01

    Cometary atmospheres are produced by the outgassing of material, mainly H{sub 2}O, CO, and CO{sub 2} from the nucleus of the comet under the energy input from the Sun. Subsequent photochemical processes lead to the production of other species generally absent from the nucleus, such as OH. Although all comets are different, they all have a highly rarefied atmosphere, which is an ideal environment for nonthermal photochemical processes to take place and influence the detailed state of the atmosphere. We develop a Monte Carlo model of the coma photochemistry. We compute the energy distribution functions (EDF) of the metastable O({sup 1}D) and O({sup 1}S) species and obtain the red (630nm) and green (557.7nm) spectral line shapes of the full coma, consistent with the computed EDFs and the expansion velocity. We show that both species have a severely non-Maxwellian EDF, that results in broad spectral lines and the suprathermal broadening dominates due to the expansion motion. We apply our model to the atmosphere of comet C/1996 B2 (Hyakutake) and 103P/Hartley 2. The computed width of the green line, expressed in terms of speed, is lower than that of the red line. This result is comparable to previous theoretical analyses, but in disagreement with observations. We explain that the spectral line shape does not only depend on the exothermicity of the photochemical production mechanisms, but also on thermalization, due to elastic collisions, reducing the width of the emission line coming from the O({sup 1}D) level, which has a longer lifetime.

  20. PyMercury: Interactive Python for the Mercury Monte Carlo Particle Transport Code

    SciTech Connect (OSTI)

    Iandola, F N; O'Brien, M J; Procassini, R J

    2010-11-29

    Monte Carlo particle transport applications are often written in low-level languages (C/C++) for optimal performance on clusters and supercomputers. However, this development approach often sacrifices straightforward usability and testing in the interest of fast application performance. To improve usability, some high-performance computing applications employ mixed-language programming with high-level and low-level languages. In this study, we consider the benefits of incorporating an interactive Python interface into a Monte Carlo application. With PyMercury, a new Python extension to the Mercury general-purpose Monte Carlo particle transport code, we improve application usability without diminishing performance. In two case studies, we illustrate how PyMercury improves usability and simplifies testing and validation in a Monte Carlo application. In short, PyMercury demonstrates the value of interactive Python for Monte Carlo particle transport applications. In the future, we expect interactive Python to play an increasingly significant role in Monte Carlo usage and testing.