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Title: Geothermal-Enabled Zero Energy Community: A Techno-Economic Design Study to Address Cold-Climate Challenges

Abstract

In northern climates, developing a zero-energy community is increasingly costly. Building loads are higher, thanks to the colder weather, and solar PV is both less effective, due to lower solar incidence, and misalignment with the buildings' energy needs (summer production, winter demands). We present a novel application for geothermal energy production in support of a zero-energy community, combining appropriate energy efficiency (demand design), geothermal production (supply design), and asset dispatch as an integrated technoeconomic package. This poster presents the process used to explore this system integration challenge, initial results, and discusses some of the technical opportunities for increasing the community-scale adoption of geothermal as an electric and thermal resource. Results indicate that under certain conditions, community-scale geothermal resources are quite competitive with today's grid tariffs and with PV, showing an LCOE within $0.01/kWh before consideration of important grid modernization factors such as resiliency and reliability.

Authors:
ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [1];  [1]
  1. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Geothermal Technologies Office (EE-4G)
OSTI Identifier:
1569205
Report Number(s):
NREL/PO-5500-74884
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Conference
Resource Relation:
Conference: Presented at the Geothermal Resources Council Annual Meeting, 16-18 September 2019, Palm Springs, California
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; 29 ENERGY PLANNING, POLICY, AND ECONOMY; geothermal; community; renewable; zero energy; design; simulation; analysis; technoeconomic

Citation Formats

Christensen, Dane T, Becker, William L, Speake, Andrew, McCabe, Kevin, Bench Reese, Samantha R, Cutler, Dylan S, and Dorsey, Caitlin. Geothermal-Enabled Zero Energy Community: A Techno-Economic Design Study to Address Cold-Climate Challenges. United States: N. p., 2019. Web.
Christensen, Dane T, Becker, William L, Speake, Andrew, McCabe, Kevin, Bench Reese, Samantha R, Cutler, Dylan S, & Dorsey, Caitlin. Geothermal-Enabled Zero Energy Community: A Techno-Economic Design Study to Address Cold-Climate Challenges. United States.
Christensen, Dane T, Becker, William L, Speake, Andrew, McCabe, Kevin, Bench Reese, Samantha R, Cutler, Dylan S, and Dorsey, Caitlin. Fri . "Geothermal-Enabled Zero Energy Community: A Techno-Economic Design Study to Address Cold-Climate Challenges". United States. https://www.osti.gov/servlets/purl/1569205.
@article{osti_1569205,
title = {Geothermal-Enabled Zero Energy Community: A Techno-Economic Design Study to Address Cold-Climate Challenges},
author = {Christensen, Dane T and Becker, William L and Speake, Andrew and McCabe, Kevin and Bench Reese, Samantha R and Cutler, Dylan S and Dorsey, Caitlin},
abstractNote = {In northern climates, developing a zero-energy community is increasingly costly. Building loads are higher, thanks to the colder weather, and solar PV is both less effective, due to lower solar incidence, and misalignment with the buildings' energy needs (summer production, winter demands). We present a novel application for geothermal energy production in support of a zero-energy community, combining appropriate energy efficiency (demand design), geothermal production (supply design), and asset dispatch as an integrated technoeconomic package. This poster presents the process used to explore this system integration challenge, initial results, and discusses some of the technical opportunities for increasing the community-scale adoption of geothermal as an electric and thermal resource. Results indicate that under certain conditions, community-scale geothermal resources are quite competitive with today's grid tariffs and with PV, showing an LCOE within $0.01/kWh before consideration of important grid modernization factors such as resiliency and reliability.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {9}
}

Conference:
Other availability
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