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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
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
A Solar Design Manual for Alaska 6th Edition
The sixth edition of the University of Alaska Fairbanks ‘A Solar Design Manual for Alaska’ provides updated, Alaska‑specific guidance for planning and installing solar energy systems in challenging northern climates. The manual covers solar resource characteristics at high l...
Nash, A. University of Alaska Fairbanks
Mar 30, 2026
System Advisor Model (SAM) General Description (Version 2017.9.5)
This document provides a general description of the System Advisor Model (SAM) version 2017.9.5. It explains the software's purpose as a free techno-economic modeling tool for evaluating renewable energy projects, including photovoltaic, wind, concentrating solar, geothermal, and ...
Keith, J. et al NLR
May 01, 2018
DC Microgrid Reliability Enhancement with Adaptive Converter Thermal Management
Due to the different device selections, aging levels, and thermal dissipation performance, some converters may take additional thermal stress on switching devices than others in paralleled converter systems, which will reduce system reliability. To address this problem, this paper...
Zhu, X. et al Aalborg University
Dec 31, 2023
Modeling and Evaluating Beneficial Matches between Excess Renewable Power Generation and Non-Electric Heat Loads in Remote Alaska Microgrids
Develops a decision-making method to identify beneficial matches between excess renewable electricity and non-electric, dispatchable heat loads in remote Alaska microgrids. Uses HOMER Pro to model excess generation across multiple wind and solar build-out combinations and then qua...
Bolt, G. et al University of Alaska Fairbanks
Mar 24, 2022
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
Load Control for Frequency Response A Literature Review
As electricity grids employ greater fractions of renewable energy, which introduce additional variability and uncertainty in the net-load, balancing electrical load and generation becomes more challenging. This paper reviews the literature documenting physical simulations and real...
Anderson, B. et al NLR
Jan 31, 2022
Optimal Deployment of Thermal Energy Storage Under Diverse Economic and Climate Conditions
This paper presents an investigation of the economic benefit of thermal energy storage (TES) for cooling, across a range of economic and climate conditions. Chilled water TES systems are simulated for a large office building in four distinct locations, Miami in the U.S.; Lisbon, ...
DeForest, N. et al Lawrence Berkeley National laboratory
Apr 14, 2014
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