Closed-Loop Geothermal Systems: The Companies Building the Next Generation of Underground Energy Image : The Eavor Technologies Geothermal Project Closed-loop geothermal systems represent one of the most promising frontiers in renewable energy, offering continuous, baseload power without the environmental concerns associated with conventional geothermal development. Unlike traditional open-loop systems that require hydraulic fracturing and consume large volumes of water, closed-loop geothermal circulates a working fluid through sealed underground pipes, extracting heat from hot rock formations while maintaining a self-contained system that eliminates fluid loss, induced seismicity, and reservoir depletion risks.This technology has attracted significant investment and technical innovation from a diverse array of companies spanning startups, established energy firms, and drilling specialists, each pursuing distinct approaches to unlock the vast thermal energy stored beneath the Eart...
Jicarilla Apache Nation Launches $2.5 Million Geothermal Feasibility Study
.jpg)
The Jicarilla Apache Nation in northern New Mexico has launched a major investigation into its geothermal energy potential after receiving a $2.5 million grant from the State of New Mexico. The funding will support a detailed feasibility study examining whether underground heat resources on tribal lands could be developed for electricity generation, direct heating, or other energy applications.
The initiative represents an important step in the Nation’s efforts to understand and diversify its energy resources. Although the Jicarilla Apache Nation has not yet committed to building a geothermal facility, the study could provide the geological, technical, and economic information required for future investment decisions.
The project is particularly significant because the Nation already has extensive experience with subsurface exploration through its oil and gas activities. Existing geological records, drilling information, and technical expertise may help researchers evaluate geothermal opportunities more efficiently than in areas with limited subsurface data.
New Mexico Grant Supports Geothermal Investigation
The $2.5 million award comes from New Mexico’s Geothermal Projects Development Fund, administered through the Energy Conservation and Management Division of the state’s Energy, Minerals and Natural Resources Department.
The state grant is intended to advance early-stage geothermal development by helping project sponsors overcome one of the industry’s most significant barriers: uncertainty about the underground resource. Before developers can secure construction financing, select equipment, or negotiate power contracts, they must establish whether the resource is sufficiently hot, productive, and commercially accessible.
For the Jicarilla Apache Nation, the grant provides funding for this initial resource evaluation without requiring the Nation to immediately assume the financial risk of drilling a commercial geothermal well or building a power plant.
The study is expected to last approximately nine months. Once the work is complete, the project team will present its findings to the Jicarilla Apache Legislative Council and New Mexico state officials. Those findings could guide decisions on additional exploration, demonstration projects, public-private partnerships, or the development of a larger geothermal facility.
Study Will Assess Tribal Geothermal Resources
The feasibility study will examine a wide range of geological and technical information. Researchers will analyze existing oil and gas records, subsurface temperatures, regional geology, water chemistry, and other data that may indicate the presence of geothermal resources.
The project team will also develop maps and models showing where geothermal heat may be located and how it could potentially be accessed. These models are important because geothermal development depends not only on temperature but also on depth, permeability, fluid availability, reservoir size, and the ability to sustain production over time.
A hot underground formation may not automatically be suitable for commercial development. If the rock lacks natural fractures or sufficient permeability, wells may not produce enough fluid for an economically viable project. Conversely, an area with moderate temperatures may still be useful for direct heating applications if the resource is shallow and accessible.
The study will therefore need to distinguish between different resource categories and possible uses. High-temperature resources could potentially support electricity generation, while lower-temperature resources may be better suited to heating buildings, greenhouses, industrial facilities, or water systems.
Partnership With SMK Geoscience
The Jicarilla Apache Nation’s Oil and Gas Administration is leading the project in partnership with SMK Geoscience LLC, a geological consulting company based in Durango, Colorado.
SMK Geoscience will support the technical assessment by evaluating available subsurface information and helping identify areas that warrant further investigation. The company’s work is expected to include geological interpretation, geothermal resource mapping, data analysis, and the development of recommendations for future exploration.
Using existing data is a practical starting point for the Nation. Oil and gas exploration often generates valuable information about geological formations, well depths, temperature gradients, pressure conditions, and fluid chemistry. While petroleum data cannot simply be transferred directly to geothermal development, it can provide a useful foundation for identifying promising areas.
The study may also highlight gaps in the existing dataset. For example, available oil and gas wells may not have been drilled in locations that are optimal for geothermal production. Temperature measurements may be incomplete, and data collected for hydrocarbon exploration may not include all the information needed to characterize a geothermal reservoir.
If the initial assessment identifies attractive targets, the Nation may need to conduct additional geophysical surveys or drill dedicated geothermal test wells.
Electricity Generation Is One Potential Use
One of the main objectives of the study is to determine whether geothermal resources could support electricity generation. Geothermal power plants use heat from underground formations to produce steam or hot fluids, which are then used to drive turbines or generate electricity through secondary working fluids
The most suitable technology would depend on the temperature and characteristics of the resource. Conventional flash or dry-steam systems generally require relatively high temperatures. Binary-cycle plants can operate with lower-temperature resources by transferring heat to a secondary fluid with a lower boiling point.
A binary plant could be particularly relevant if the Jicarilla Apache Nation discovers a moderate-temperature resource. Such facilities do not require underground geothermal fluid to boil directly. Instead, hot water transfers heat through a heat exchanger, allowing a separate working fluid to vaporize and drive a turbine.
However, geothermal power development requires more than a favorable temperature. The project would also need sufficient flow rates, reliable reservoir performance, transmission access, suitable cooling conditions, permits, financing, and a viable electricity market.
The feasibility study may therefore consider the scale of any potential power project. A resource might support a small distributed facility serving tribal operations, a larger plant connected to the regional grid, or an incremental development model in which capacity is expanded as reservoir performance is confirmed.
Direct Heating Could Offer Early Benefits
Electricity generation is not the only potential application. The study will also assess direct-use opportunities, in which geothermal heat is delivered directly to buildings, industrial processes, greenhouses, agricultural facilities, or water systems.
Direct-use projects often require lower temperatures and simpler infrastructure than geothermal power plants. This can reduce development costs and allow a community to use a resource that may not be hot enough for efficient electricity production.
Potential applications could include heating public buildings, residential developments, schools, health facilities, offices, or commercial operations. Geothermal water could also support greenhouse agriculture, aquaculture, food processing, mineral recovery, or other heat-intensive activities, depending on its chemistry and temperature.
A direct-use project may be especially attractive if the geothermal resource is located near an existing energy load. Short distances between production wells and users can reduce pipeline costs and minimize heat losses.
The feasibility study should compare the value of different applications rather than assuming that electricity generation is automatically the best outcome. In some cases, using geothermal heat directly can deliver greater energy efficiency and stronger local economic benefits than converting the heat into electricity.
Existing Energy Expertise Provides an Advantage
The Jicarilla Apache Nation’s history in the oil and gas sector may provide a valuable technical and institutional foundation for geothermal development. The Nation has experience managing energy resources, working with drilling contractors, interpreting geological information, and overseeing relationships with outside companies.
This background could help reduce some of the challenges faced by communities beginning geothermal exploration without prior experience in subsurface energy development. Existing administrative structures and technical personnel may also make it easier to manage data, evaluate proposals, and negotiate future partnerships.
Oil and gas infrastructure may offer additional advantages, although its usefulness will depend on location and condition. Roads, well pads, pipelines, electrical connections, and service companies could potentially support geothermal exploration or reduce the cost of new construction.
Nevertheless, geothermal energy is not simply a replacement for oil and gas. The two industries use different well designs, production strategies, reservoir-management approaches, and economic models. Geothermal projects are designed for long-term heat extraction, while oil and gas wells typically produce finite hydrocarbon resources.
The Nation will therefore need to combine its existing subsurface expertise with specialized geothermal knowledge.
Resource Uncertainty Remains a Major Challenge
The central purpose of the feasibility study is to reduce uncertainty. Geothermal resources are difficult to evaluate because the most important conditions—temperature, permeability, fluid flow, and reservoir size—are located underground.
Surface indicators such as hot springs, altered rocks, or warm groundwater can provide clues, but they do not guarantee that a commercial reservoir exists at depth. Similarly, a high temperature measured in one well may not represent the broader area.
Geothermal exploration can also be expensive. Geological studies and geophysical surveys may identify promising targets, but drilling is usually required to confirm the resource. Test wells can cost millions of dollars and may not produce sufficient fluid or temperature to justify further development.
The Jicarilla Apache study will therefore need to establish clear criteria for deciding whether the Nation should proceed. These criteria may include minimum temperatures, expected flow rates, reservoir dimensions, drilling depths, projected development costs, environmental considerations, and potential revenue.
A careful decision framework can help prevent the project from advancing solely because the area appears geologically promising. Commercial feasibility depends on the relationship between resource quality, infrastructure requirements, market value, and financial risk.
Potential Role of Enhanced Geothermal Systems
Depending on the findings, the Nation could eventually consider enhanced geothermal systems, or EGS. These systems are designed for areas where hot rock exists but natural permeability or fluid circulation is insufficient for conventional geothermal production
EGS projects may involve injecting fluid into hot formations to create or open pathways through which water can circulate. The heated water can then be produced through another well and used for electricity or direct heating.
The feasibility study may not immediately recommend EGS development, because the technology can involve additional drilling, stimulation, monitoring, and regulatory requirements. However, mapping hot formations and evaluating rock properties could help determine whether engineered reservoir approaches deserve further consideration.
EGS could expand the geographic range of geothermal development by making use of hot rock that lacks naturally productive fractures. At the same time, projects must carefully manage induced seismicity, water use, well integrity, and long-term reservoir performance.
Any future EGS proposal would require detailed geological characterization, community engagement, environmental review, and transparent risk management.
Tribal Energy Development and Economic Opportunity
For the Jicarilla Apache Nation, geothermal energy could offer more than a new electricity source. A successful project could create employment, generate tribal revenue, strengthen local infrastructure, and support long-term energy planning.
Development activities could create opportunities for tribal members in geological services, drilling support, construction, operations, maintenance, environmental monitoring, and administration. Training programs could help connect geothermal development with broader workforce-development objectives.
The Nation could also use geothermal energy to reduce exposure to energy-price volatility. Locally produced heat or electricity may provide greater control over operating costs for tribal facilities and businesses, although the financial benefits would depend on the final project design.
Revenue models could include electricity sales, heat sales, leasing arrangements, royalties, joint-venture income, or savings from displacing purchased energy. The most appropriate structure would depend on the resource, ownership model, financing requirements, and market conditions.
Economic benefits should be evaluated alongside environmental and cultural priorities. Tribal leadership and community members will need meaningful opportunities to participate in decisions about land use, water, infrastructure, and development timing.
Environmental and Water Considerations
Geothermal development generally produces fewer greenhouse-gas emissions than fossil-fuel power generation, but it still has environmental impacts that must be carefully assessed.
The project may require roads, well pads, pipelines, power lines, drilling equipment, and processing facilities. Construction could affect land, wildlife, vegetation, cultural resources, and water systems.
Water chemistry is especially important. Geothermal fluids can contain dissolved minerals and gases that require treatment, reinjection, or controlled disposal. Reinjection is commonly used to maintain reservoir pressure and reduce surface impacts, but it must be designed to avoid contamination and manage pressure changes.
Water availability will also influence project feasibility. Some geothermal systems can operate with limited net water consumption, while others require significant fluid management. The Nation will need to evaluate how geothermal development would interact with existing water rights, community needs, agriculture, and other energy activities
Environmental monitoring should begin during the exploration phase and continue throughout any future development. Baseline data can help identify changes in groundwater, seismic activity, surface conditions, and ecological systems.
What Happens After the Study?
The nine-month feasibility study is an initial step rather than a final investment decision. Its results will determine whether the Nation should proceed with more detailed exploration or conclude that commercial development is not currently justified.
If the findings are positive, the next phase could include temperature-gradient drilling, seismic surveys, magnetotelluric studies, flow testing, or the drilling of full-size exploration wells. The Nation might also seek additional federal or state funding to support these activities.
A promising resource could attract interest from geothermal developers, utilities, equipment suppliers, engineering firms, infrastructure investors, and federal energy agencies. Partnerships could help provide technical expertise and capital, but any agreement would need to protect tribal control and ensure that the economic terms reflect the Nation’s interests.
If the resource is not suitable for electricity generation, the Nation could still consider smaller direct-use projects or continue monitoring the area as geothermal technologies improve.
The study’s value will therefore extend beyond a simple yes-or-no decision. It can establish a stronger geological database, improve energy planning, identify infrastructure needs, and clarify which future technologies may be appropriate.
A Strategic Test for Geothermal Development
The Jicarilla Apache Nation’s $2.5 million geothermal study comes at a time when governments, tribes, utilities, and investors are exploring new ways to expand reliable low-carbon energy. Geothermal power can provide firm generation, while direct-use systems can deliver efficient heat for communities and industries.
The project also demonstrates the importance of early-stage public funding. Resource uncertainty can prevent private investors from supporting geothermal projects before drilling confirms the underground conditions. A state-funded feasibility study can help close that information gap and determine whether later private or public investment is warranted.
For the Jicarilla Apache Nation, the immediate priority is to establish what exists beneath its land and what applications could produce the greatest long-term value. Electricity, heating, industrial use, and emerging technologies may all form part of the evaluation.
The study will not guarantee a geothermal project, but it will give tribal leaders a stronger basis for deciding whether to proceed. Its findings could ultimately shape the Nation’s future energy strategy and provide a model for other tribal communities evaluating geothermal resources across the United States.
Source : Tribal News
Comments
Post a Comment