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Impact of Geothermal District Heating System on Flexibility of Microgrid in Tuttle, Oklahoma: Preprint
Flexibility is the capability of the power grid to maintain a balance between electricity generation and variable demand. This study presents preliminary results evaluating the impact of geothermal district heating systems on the flexibility of a conceptual microgrid in Tuttle, Ok...
Oh, H. et al NLR
Sep 30, 2024
U.S. Developing Geothermal Plants
This dataset contains locations of geothermal power plants in development within the United States as of the publication date and includes attributes for planned capacity. Geothermal developing plant data was aggregated from SNL Financial LC, the Geothermal Energy Association (GEA...
NLR
Aug 03, 2014
U.S. Operating Geothermal Power Plants
This dataset contains locations of operating geothermal power plants within the United States as of the publication date. Geothermal power plant data was aggregated from SNL Financial LC, the Geothermal Energy Association (GEA), press releases and operator websites. NREL performed...
NLR
Jul 08, 2014
U.S. Enhanced Geothermal Systems
Enhanced geothermal systems (EGS) can unlock geothermal resources in areas without naturally permeable reservoirs by creating engineered fractures to extract heat. NREL's EGS dataset rates potential sites across the United States by integrating geologic temperatures, depths, and c...
NLR
Feb 21, 2018
Microgrid Roadmap 1.0
Developed by the Colorado Energy Office and the Colorado Department of Local Affairs, this roadmap offers guidance on planning, financing, and deploying microgrids in the state. It identifies priority use cases, outlines regulatory and technical considerations, and recommends stra...
Colorado Energy Office, C.
Dec 31, 2024
Geothermal Heat Pump System Technical Specifications
This FEMP document specifies technical requirements for geothermal heat pump (GHP) systems used in federal buildings. It covers system sizing, efficiency ratings, refrigerants, controls, ground loop design, installation practices, and commissioning procedures. The specifications h...
Program, M. U.S. Department of Energy
Jul 07, 2025
Geothermal Prospector
The Geothermal Prospector is an interactive map application developed by NREL to help users evaluate geothermal resource potential. It overlays geothermal resource layers such as heat flow, temperature at depth, hydrothermal reservoirs, and enhanced geothermal system favorability ...
NLR
Jul 28, 2022
Igiugig’s Journey Toward Sustainability
This case study chronicles the efforts of the Igiugig Village Council, NREL, and Deerstone Consulting to transition the remote Alaska community toward sustainable energy solutions. It describes projects such as renewable microgrid installations, energy efficiency improvements, cap...
Salmon, A. et al Igiugig Village Council
Nov 30, 2022
Community Microgrids: A Guide for Mayors and City Leaders Seeking Clean, Reliable and Locally Controlled Energy
This guide from Microgrid Knowledge assists mayors and city leaders in understanding, planning, and developing community microgrids. It explains microgrid concepts, benefits, ownership models, financing options, and policy considerations. The guide offers case studies, practical s...
Microgrid Knowledge
Dec 31, 2016
U.S. Department of Energy Combined Heat and Power Database
The DOE Combined Heat and Power (CHP) Installation Database, managed by ICF and funded by the U.S. Department of Energy, is the definitive source for information on CHP systems in the United States. Established in 2002 and updated monthly, the database includes installation capaci...
U.S. DOE and ICF
Jul 14, 2025
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