Geothermal Energy Market Report 2026

Geothermal Energy Market Overview

• Geothermal Energy market size has reached to $6.6 billion in 2025 • Expected to grow to $8.74 billion in 2030 at a compound annual growth rate (CAGR) of 5.7% • Growth Driver: Driving Growth In The Geothermal Energy Market Through Investments • Market Trend: Breakthroughs In Enhanced Drilling Systems • Asia-Pacific was the largest region in 2025 and North America is the fastest growing region.

What Is Covered Under Geothermal Energy Market?

Geothermal energy is thermal energy from the Earth's internal heat, mainly generated by the planet's formation and radioactive decay processes. This heat is stored in different reservoirs within the Earth's crust and can be used for heat and electricity generation. Geothermal resources encompass hot water and steam at various depths and temperatures beneath the Earth's surface. The main types of technologies in geothermal energy are binary cycle plants, flash steam plants, dry steam plants, ground-source heat pumps, direct systems, and others. Binary-cycle plants are a type of geothermal power plant that uses two separate fluid cycles to generate electrical power from geothermal resources. These are used for various applications, including power generation, residential heating and cooling, and commercial heating and cooling, and end users are industrial, residential, and commercial.

What Is The Geothermal Energy Market Growth Forecast?

The geothermal energy market size is expected to see strong growth in the next few years. It will grow to $8.74 billion in 2030 at a compound annual growth rate (CAGR) of 5.7%. The growth in the forecast period can be attributed to growth of enhanced geothermal systems (egs), increasing adoption of ground source heat pumps, rising demand for low carbon power generation, expansion of hybrid geothermal systems, technological advancements in drilling and subsurface mapping. Major trends in the forecast period include growing adoption of geothermal power plants, rising demand for ground source heat pumps, expansion of direct heating applications, increasing development of enhanced geothermal systems, rising use of geothermal energy in industrial processing.

What Is The Driver Of The Geothermal Energy Market?

The rising investments in the renewable energy sector are expected to propel the growth of the geothermal energy market going forward. Investments in renewable energy refer to financial commitments made towards developing, deploying, and utilizing sustainable energy sources such as solar, wind, hydroelectric, geothermal, and biomass. It arises due to climate change concerns, advancements in renewable energy technologies, improved efficiency, and lowered costs. Investments are used in geothermal energy to drive various aspects of project development and deployment and harness geothermal resources for sustainable energy production plant construction, operation, and maintenance. For instance, in 2023, according to the International Energy Agency (IEA), a France-based intergovernmental energy organization, global energy investment rose from about US $2.4 trillion in 2022 to approximately US $2.8 trillion in 2023. Therefore, rising investments in the renewable energy sector are driving the growth of the geothermal energy industry.

Key Players In The Global Geothermal Energy Market

Major companies operating in the geothermal energy market are Berkshire Hathaway Energy, Chevron Corporation, Mitsubishi Corporation, Enel Group, Engie SA, Siemens AG, General Electric Group, KEPCO Group, PT. Pertamina Geothermal Energy, Asea Brown Boveri Ltd, Toshiba International Corporation, Calpine Corporation, Tetra Tech Inc, Aboitiz Power Corporation, First Gen Corporation, Ormat Technologies, Energy Development Corporation, EthosEnergy Group, Therma Source LLC, Sarulla Operations Ltd, Turboden S.P.A., Terra-Green Power LLC, Gradient Resources, ElectraTherm, Reykjavik Geothermal

Global Geothermal Energy Market Trends and Insights

Major companies operating in the Geothermal Energy market are focusing on technological advancements, such as enhanced geothermal systems (EGS) using horizontal drilling paired with engineered reservoir stimulation, which refers to advanced subsurface engineering techniques that access heat from deep, impermeable rock formations through horizontal well pairs and induced fractures to generate continuous power. For instance, in July 2023, Fervo Energy, a U.S.-based geothermal technology company, launched its “Project Red” commercial pilot which achieved a horizontal well pair length of 3,250 ft, a reservoir temperature of 191 °C, and a sustained flow rate of 63 litres per second enabling 3.5 MW of baseload output. This trend enables geothermal to move beyond location-specific resources and support 24/7 clean power, yet it still faces high upfront drilling costs, permitting complexity and technical execution risks.

What Are Latest Mergers And Acquisitions In The Geothermal Energy Market?

In October 2023, Gaia Energy Ltd., an Italy-based renewable energy and green hydrogen developer, acquired Aardyn BV for an undisclosed amount. This acquisition aims to accelerate Gaia Energy's ambition to realize a geothermal potential of 500 MW across more than 25 projects and expand and construct new geothermal resources, leveraging both companies' combined expertise and portfolio. Aardyn BV is a Netherlands-based developer and producer of geothermal energy.

What Defines the Geothermal Energy Market?

The geothermal energy market consists of revenues earned by entities by providing services such as electricity generation, industrial processes, greenhouse heating, and district heating. The market value includes the value of related goods sold by the service provider or included within the service offering. The geothermal energy market also includes of sales of geo-exchange systems, drilling equipment, geothermal power tools, geothermal heat pumps, and monitoring and control systems. Values in this market are ‘factory gate’ values, that is, the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors, and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

How is Market Value Defined and Measured?

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified). The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

What Key Data and Analysis Are Included in the Geothermal Energy Market Report 2026?

The geothermal energy market research report is one of a series of new reports from The Business Research Company that provides market statistics, including industry global market size, regional shares, competitors with the market share, detailed market segments, market trends and opportunities, and any further data you may need to thrive in the geothermal energy industry. The market research report delivers a complete perspective of everything you need, with an in-depth analysis of the current and future state of the industry.