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Title: Strategies for Reducing Peak Load using Residential Storage Systems.

Abstract

Abstract not provided.

Authors:
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1431606
Report Number(s):
SAND2017-3119PE
651985
DOE Contract Number:
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Proposed for presentation at the GMLC Update Meeting.
Country of Publication:
United States
Language:
English

Citation Formats

Jones, Christian Birk. Strategies for Reducing Peak Load using Residential Storage Systems.. United States: N. p., 2017. Web.
Jones, Christian Birk. Strategies for Reducing Peak Load using Residential Storage Systems.. United States.
Jones, Christian Birk. Wed . "Strategies for Reducing Peak Load using Residential Storage Systems.". United States. doi:. https://www.osti.gov/servlets/purl/1431606.
@article{osti_1431606,
title = {Strategies for Reducing Peak Load using Residential Storage Systems.},
author = {Jones, Christian Birk},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Mar 01 00:00:00 EST 2017},
month = {Wed Mar 01 00:00:00 EST 2017}
}

Conference:
Other availability
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  • A means of delaying the peak-load crisis is proposed that involves a low capital cost investment, better utilization of the existing electrical system (now with average capacity factor of <50%), and that would be able to compensate for more than half of the next 10-yr peak-load growth at the rate of 3% per annum, without building any new generating capacity. The proposed method involves only the residential sector that uses electric powered heat pumps and proposes to accomplish the above goals through time-of-day metering incentives and central station line signal control of the heat pumps and electric hot water heaters.more » Heat pump compressors and hot water heater elements would be shut off for periods of up to 3 h, and the storage system would later be recharged during off-peak nighttime hours. Two-way communication is preferred, so that the central station computer could assess the condition of each residence and its storage system before turning off the power. An analysis has been done for the central Missouri climate and general utility system characteristics, which it would appear represents a reasonable average for the nation.« less
  • This paper describes the simulation and analysis of the load-shifting potential of a phase-change thermal energy storage (TES) system. The interrelationships between peak-demand shifting, total energy consumption, and electric utility/customer benefits are explored. Peak-shifting criteria are discussed. 8 refs.
  • This paper describes the simulation and analysis of the load-shifting potential of ice-making or chilled water thermal energy storage (TES) systems for residential cooling. Histograms of the time-of-day average electrical demand over a cooling season are presented for three system configurations and load management strategies. The histograms are analyzed for load-shifting capability, total energy consumption and utility/customer benefits. Simulations are presented for a conventional airconditioning system providing cooling on demand, a conventional system with an externally controlled management device to limit demand onpeak, and an ice-making storage system. Results indicate that although there is a significant impact of the systemmore » configuration on the load-shifting potential, it is the heat pump performance that is critical. For ice-storage systems to be attractive for diurnal use, the coefficient of performance (COP) of the ice-maker needs to be substantially better than those currently available. Peak-shifting could come at the expense of total energy consumption or for some control strategies, cooling comfort.« less
  • Building energy consumption can be substantially reduced after implementing improved operation strategies that are a scientific refinement of traditional operation and maintenance (O and M) measures. Specifically, they involve resetting the cooling deck or heating deck temperature according to the ambient temperature such that maximum energy efficiency can be achieved without compromising indoor air quality and comfort. The improved operation strategies optimize system performance as a whole rather than focusing on the malfunction of individual components. This study, involving five medical and institutional buildings in Galveston, Texas, shows that improved operation strategies can reduce chilled-water and condensate costs by $517,800more » per year, or 19% of the total building energy costs ($2.7 million). This potential percentage savings is comparable to the measured thermal energy savings in 10 buildings at other Texas campuses where constant-air-volume systems have been converted to variable-volume systems, though in the latter case fan electricity consumption is also reduced but with substantial investment cost. On the other hand, improved operation strategies do not require any retrofit or investment cost. The improved operation strategies have been implemented in one of the five buildings, and the measured savings are consistent with predicted savings. It seems that the improved operation strategies are an excellent alternative to converting constant-volume systems to variable-volume systems, especially if there are no retrofit funds available.« less