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Industry acronyms and terminology
Reports
NLR (formerly NREL) 2025 U.S. Geothermal Market Report This report updates and expands on the 2021 U.S. Geothermal Power Production and District Heating Market Report, also referred to as the 2021 Geothermal Market Report (Robins et al., 2021). This report was developed by the National Laboratory of the Rockies (NLR), formerly known as NREL, a national laboratory supporting the U.S. Department of Energy (DOE), and Geothermal Rising, a professional and trade association for the geothermal industry, with support from the International Ground Source Heat Pump Association (IGSHPA), a professional organization for advancing geothermal heat pump technologies. The intent of this work is to provide policymakers, developers, researchers, engineers, financiers, and other stakeholders with an update on the U.S. geothermal market.
U.S. Department of Energy (DOE) Liftoff Report (2025) This report aims to achieve the following goals: 1) to identify the current role of geothermal technology in the building heating and cooling market, and its potential role in decarbonizing the buildings sector; 2) to clarify the value proposition of the technology and characterize the market’s current state and potential; 3) to sketch a realistic path to commercialize and create market momentum to scale this high technology readiness level (TRL) technology, and 4) to catalog the barriers to achieving that scale, and their potential solutions.
ORNL (Oak Ridge National Laboratories) Grid Impact Report (2023) This report presents the results of a study on the potential grid impacts of national-scale mass deployment of geothermal heat pumps (GHPs) coupled with weatherization in single-family homes (SFHs) from 2022 to 2050. GHPs are a technology readiness level 10, commercially available technology across the United States. This study is an impact analysis only; installed costs and available land areas for installing GHPs are not accounted for in determining their estimated deployment. The three scenarios studied were (1) continuing to operate the grid as it is today (the Base scenario), (2) a scenario to reach 95% grid emissions reductions by 2035 and 100% clean electricity by 2050 (the Grid Decarbonization scenario), and (3) a scenario in which the Grid Decarbonization scenario is expanded to include the electrification of wide portions of the economy, including building heating (the Electrification Futures Study or EFS scenario). The analysis team modeled each of these three scenarios with and without GHP deployment to a large percentage of US building floor space. In all cases, deployment of approximately 5 million GHPs per year demonstrated system cost savings on the grid, consumer fuel cost savings through eliminated fuel combustion for space heating, and CO2 emission reductions from avoided on-site fuel combustion—and, in the case of the Base scenario, CO2 emissions reductions from the electric power sector.
Dunsky Report (Canada 2021) This report outlines effective policy solutions to capture the potential cost savings with GSHP adoption. In addition to these policies, utilities should update their cost-effectiveness analysis framework, including their avoided costs and value streams – which should reflect their decarbonization targets, so the benefits GSHPs bring to the grid can be accounted for more accurately. The study finds that an optimal mix of policies aimed at increasing GSHP adoption could create a triple-win situation for Canadians: lower costs, increased GHG reductions from space heating, and a better alignment of costs and benefits. The following policies are key to unlocking the cost and environmental benefits of GSHPs for Canada, by transferring some of the social and grid benefits of GSHPs to those who must bear the capital costs.
U.S. Department of Energy (DOE) GeoVision Report To evaluate similar opportunities for the success of geothermal energy, the U.S. Department of Energy’s Geothermal Technologies Office (GTO) initiated the GeoVision analysis. This rigorous technical analysis evaluated future geothermal deployment opportunities based on three core objectives: (1) Increased access to geothermal resources; (2) Reduced costs and improved economics for geothermal projects; (3) Improved education and outreach about geothermal energy through stakeholder collaboration. The GeoVision analysis concludes that meeting all three of these objectives can result in a sizable increase in America’s use of geothermal energy. Analysis results show that, with technology improvements, geothermal power generation could increase nearly 26-fold from today—representing 60 gigawatts of installed capacity by 2050.
Information on Geothermal Heat Pump Incentives
- Database of State Incentives for Renewables & Efficiency (DSIRE)
- US Department of Energy Consumer Energy Tax Incentives
Cost Savings and Calculators
- ClimateMaster Cost Savings Calculator
- Enertech Savings Calculator
- Waterfurnace Geothermal Savings Calculator
- Free Economics Software (GeoKISS)
- IGSHPA Cost per BTU Calculator
Energy Related
- DOE Energy Efficiency and Renewable Energy (EERE)
- Ecoiq.com (Energy Conservation & Renewable)
- Edison Electric Institute (EEI)
- Electric Power Research Institute (ERPI)
- Energy Star
- Natural Resources Canada — Ground Source Heat Pumps
- The Association of Energy Engineers (AEE)
Environmental Related
- BuildingGreen.com (Publishers of Environmental Building News)
- Environmental Protection Agency (EPA)
- National Center for Appropriate Technology (NCAT)
- The EcoGateway (Your Guide to Sustainability Online)
- The Envirolink Network (Online Environmental Community)
Research Related
- University of Illinois Climate Action Plan (iCAP)
- Oak Ridge National Laboratory – Building Technologies Research and Integration Center
- Zero Energy Building Research Alliance
Geothermal & HVACR Industry Information
- Air Conditioning Contractors of America (ACCA)
- American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE)
- Air-Conditioning, Heating, and Refrigeration Institute (AHRI)
- Heating Refrigeration Air Conditioning Institute of Canada (HRAI)
- GeoKISS (Energy Information Systems)
- Geothermal Exchange Organization (GEO)
- National Rural Electric Cooperatives Association (NRECA)
- HVACR News (The Air Conditioning, Heating & Refrigeration News/ Online Newspaper)
- Plastic Pipe Institute
Geothermal Design Software
- Building Life Cycle Cost Program (BLCC) does federal CFR computations
- Elite Software (HVAC design)
- GeoKISS (HVAC & GSHP programs at Energy Information Services)
- Ground Loop Design (GLD) Geothermal Design Studio for Commercial Applications
- Ground Loop Heat Exchanger Design Software (GLHEPRO)
- LoopLink PRO – Commercial Applications
- LoopLink RLC – Residential/Light Commercial Applications
- Wrightsoft (GHP system design software)
