DEEE0011277

The goals of this project are to 1) deliver a triplet horizontal well EGS system capable of generating at least 5 MW of electric power (the triplet system will be designed as one central horizontal production well offset by two horizontal injection wells),

2) stimulate all three wells with a multistage, plug-and-perf stimulation treatment design with proppant, and

3) perform long-term crossflow well tests to characterize the hydraulic and thermal performance of the system.

The project is already at an advanced stage of project readiness across all key project development phases, including site control, permitting, site preparation, engineering, supply chain, and commercial offtake.

Given this advanced stage of project readiness, we are prepared to execute this project quickly and efficiently.

We have established an experienced project team capable of delivering this complex project on-time and on-budget.

Given that this is a commercial project, we have designed the drilling, completions, stimulation, and well testing program to meet the critical reservoir performance targets required to achieve an economic EGS system.

In addition, we plan to execute an advanced data acquisition campaign to enable detailed reservoir characterization.

The workplan outlined below was developed based on the following project delivery goals:

• Prioritize health, safety and the environment, community engagement, workforce development, and collaboration across the geothermal industry.

• Minimize risk throughout the drilling, completions, stimulation, and well testing phases by taking advantage of the vast amount of existing data, lessons learned, and advisory group from the integrated project team and Utah Forge partnership.

• Leverage learnings from Fervo’s and Utah Forge’s previously successful field demonstration campaigns, focusing on an EGS system design and operations plan that directly demonstrates the key reservoir performance indicators required for commercial EGS projects.

• Maximize learning opportunities that can be applied industry-wide to improve EGS well designs by deploying an advanced data acquisition and reservoir characterization program.

Fervo Energy Company

THIS FOA SUPPORTS THE ADMINISTRATION GOALS LAID OUT ABOVE. GEOTHERMAL ENERGY IS A RENEWABLE AND DIVERSE SOLUTION FOR THE UNITED STATES—PROVIDING RELIABLE AND FLEXIBLE, EMISSIONS-FREE ELECTRICITY GENERATION AND DELIVERING UNIQUE TECHNOLOGY SOLUTIONS TO AMERICA’S HEATING AND COOLING DEMANDS; DIRECTLY SUPPORTING THE ADMINISTRATION’S GOALS OF CARBON POLLUTION-FREE ELECTRICITY BY 2035 AND NET ZERO GREENHOUSE GAS (GHG) EMISSIONS BY 2050. GEOTHERMAL RESOURCES CAN BE FOUND NATIONWIDE AND REPRESENT VAST DOMESTIC ENERGY POTENTIAL; HOWEVER, ONLY A FRACTION OF THIS POTENTIAL HAS BEEN REALIZED DUE TO TECHNICAL AND NON-TECHNICAL BARRIERS THAT CONSTRAIN INDUSTRY GROWTH. THE DEPARTMENT OF ENERGY’S (DOE’S) GEOTHERMAL TECHNOLOGIES OFFICE’S (GTO) 2022 ENHANCED GEOTHERMAL SHOTTM ANALYSIS, BUILDING ON THE 2019 GEOVISION REPORT, CONCLUDES THAT WITH AGGRESSIVE TECHNOLOGY IMPROVEMENTS, IN AREAS RELEVANT TO ENHANCED GEOTHERMAL SYSTEMS (EGS), GEOTHERMAL POWER GENERATION COULD PROVIDE 90 GIGAWATTS-ELECTRIC (GWE) FIRM, FLEXIBLE POWER TO THE U.S. GRID BY 2050. ENHANCED GEOTHERMAL SYSTEMS (EGS) ARE ENGINEERED GEOTHERMAL RESERVOIRS, CREATED WHERE THERE IS HOT ROCK (175-300+°C), BUT LITTLE TO NO NATURAL PERMEABILITY AND/OR FLUID SATURATION. DURING EGS DEVELOPMENT, SUBSURFACE PERMEABILITY IS ENHANCED VIA SAFE, WELL-ENGINEERED RESERVOIR STIMULATION PROCESSES THAT RE-OPEN PRE-EXISTING FRACTURES, CREATE NEW ONES, OR A COMBINATION OF BOTH. THESE OPEN CONDUITS INCREASE PERMEABILITY AND ALLOW FLUID TO CIRCULATE THROUGHOUT THE HOT ROCK. THE FLUID TRANSPORTS THE OTHERWISE STRANDED HEAT TO THE SURFACE WHERE CLEAN, RENEWABLE ELECTRICITY CAN BE GENERATED WITH CURRENT POWER GENERATION TECHNOLOGIES. RELATIVE TO OTHER GEOTHERMAL RESOURCES, EGS HAVE THE POTENTIAL TO PROVIDE THE MOST GROWTH IN THE ELECTRIC SECTOR, AND IN THE GEOVISION SCENARIOS, SUPPORT NOTEWORTHY GROWTH WITHIN THE NON-ELECTRIC SECTOR FOR DISTRICT HEATING AND OTHER DIRECT-USE APPLICATIONS. THIS POTENTIAL EXPANDS IF SUPERHOT EGS RESOURCES (>375°C) ARE ACCOUNTED FOR. WITHOUT SIGNIFICANT AND SUSTAINED INVESTMENT IN EGS TECHNOLOGY DEVELOPMENT AND DEMONSTRATIONS TO REFINE OUR ABILITY TO ACCESS AND DEVELOP THESE RESOURCES, HOWEVER, THE 90 GWE TARGET WILL NOT BE ACHIEVED.

81.087 - Renewable Energy Research and Development

Golden Field Office (GFO) [DOE - EERE]

Office of Energy Efficiency and Renewable Energy (EERE) [DOE]

Milford, Utah United States

City-Wide

Bipartisan Infrastructure Law Enhanced Geothermal Systems (EGS) Pilot Demonstrations (DE-FOA-0002826)

Amendment Since initial award the End Date has been extended from 09/30/25 to 07/31/26.