Geothermal Energy MarketSize, Share & Industry Analysis, 2026-2034By TypeBy ApplicationBy CapacityBy ComponentBy Power Off-take
Full title & scope — all 5 axes with their segments
Geothermal Energy Market Size, Share & Industry Analysis, By Type (Flash, Binary Cycle, Dry Steam, Others), By Application (Industrial, Commercial, Residential, Others), By Capacity (Above 30 MW, 5 MW to 30 MW, Up to 5 MW), By Component (Equipment, Services), By Power Off-take (Grid-Connected, Off-Grid/Captive), and Regional Forecast, 2026-2034
How the estimates were built: data sources, modelling approach and validation steps.
- 01By TypeFlash · Binary Cycle · Dry Steam
- 02By ApplicationIndustrial · Commercial · Residential
- 03By CapacityAbove 30 MW · 5 MW to 30 MW · Up to 5 MW
- 04By ComponentEquipment · Services
- 05By Power Off-takeGrid-Connected · Off-Grid/Captive
- 06By Region
Market Analysis & Outlook
Geothermal energy covers the conversion of heat stored beneath the earth's surface into electricity and direct thermal use, delivered through flash, binary cycle and dry steam power plants as well as ground-source heat pump and district heating systems. Buyers range from electric utilities and independent power producers contracting for baseload grid supply to municipal and industrial operators sourcing direct heat for district heating, greenhouse agriculture, aquaculture and process applications. Equipment spans turbines, heat exchangers, wellhead and downhole components, with plant developers, drilling contractors and component manufacturers all participating in project delivery.
Between 2025 and 2034 the global geothermal energy market moves from USD 10.85 billion to USD 18.33 billion, compounding at 5.95% a year. Fifteen years are covered in all, taking in USD 8.31 billion in 2020, USD 10.16 billion in 2024, USD 11.54 billion in 2026 and USD 14.58 billion in 2030.
On the type axis, growth rates run from 3.33% for Dry Steam up to 9.92% for Others. Flash carries the volume: USD 4.88 billion and 45% of revenue in 2025, USD 7.33 billion and 40% in 2034. Share moves toward Binary Cycle and Others and away from Flash and Dry Steam, though no line shrinks in revenue terms.
The application split puts Industrial first, at USD 4.56 billion and 42% of revenue in 2025, rising to USD 7.15 billion and 39% in 2034. Residential grows faster at 8.4% against 5.13%, moving from 18% of revenue to 22% by 2034. It cuts the same total as the type axis from a different commercial angle, so revenue does not add across the two.
Geographically, 38% of 2025 revenue sits in Asia Pacific (USD 4.12 billion rising to USD 7.33 billion) ahead of North America at 27% and USD 2.93 billion. Middle East and Africa is smallest, at 6%. Share shifts toward Asia Pacific, Latin America and Middle East and Africa over the forecast period, so the regional split repays a close reading.
Coverage extends to five regions, four type lines and five segmentation axes over the full fifteen years. The 2025 total itself is a triangulation of published figures and category proxies, short of a directly sourced total, and the splits below are estimated on that same basis, a bound on their precision worth carrying into any use of them.
Market Size, 2020–2034
USD BillionRevenue in USD Billion. Values up to 2025 are actuals; 2026–2034 are forecast.
Key Takeaways
- The global geothermal energy market moves from USD 8.31 billion in 2020 to USD 10.85 billion in 2025 and USD 18.33 billion by 2034, the forecast period compounding at 5.95% a year.
- The largest line by type is Flash, worth USD 4.88 billion and 45% of revenue in 2025, rising to USD 7.33 billion and 40% by 2034.
- Others is the fastest-growing line at 9.92%, lifting its share from 5% in 2025 to 8% in 2034 and its revenue from USD 0.55 billion to USD 1.47 billion.
- The bull case puts 2034 revenue at USD 20.53 billion and the bear case at USD 16.13 billion, either side of the USD 18.33 billion base case, each with its own stated assumption in the full report.
- Asia Pacific holds 38% of global revenue in 2025 at USD 4.12 billion, the largest of the five regions tracked, and reaches USD 7.33 billion by 2034.
- 38.1% of Asia Pacific's base-year revenue comes from Indonesia alone: USD 1.57 billion in 2025, rising to USD 2.93 billion by 2034, which is why it is that region's worked example.
- The study covers 2020 through 2034 with 2025 as the base year, reporting five regions and five segmentation axes separately, with revenue, share and a growth rate for every line in each year.
Market Trends
Revenue Share, By By Type
Base year 2025Flash leads with 45.0% of by type segment revenue.
Share of by type segment revenue, most recent base year.
Read across the forecast period, the global geothermal energy market shows movement in three places: type composition, regional weight, and the 5.95% rate applied to the whole.
Not one of them points downward. Growth is everywhere in absolute terms, and the interest is entirely in where it lands.
The type mix tilts toward Others. Others grows at 9.92% across 2026-2034 against 3.33% for Dry Steam, the widest spread on the type axis. Over the forecast period that moves Others from 5% of revenue to 8%, and Dry Steam from 12% to 9%. In absolute terms Others rises from USD 0.55 billion to USD 1.47 billion, while Dry Steam rises from USD 1.3 billion to USD 1.65 billion. Both grow; the gap is wide enough to reshape the mix inside a single forecast window.
The regional balance moves. Asia Pacific moves from 38% of revenue in 2025 to 40% in 2034, worth USD 4.12 billion rising to USD 7.33 billion; Latin America moves from 9% of revenue in 2025 to 10% in 2034, worth USD 0.98 billion rising to USD 1.83 billion; Middle East and Africa moves from 6% of revenue in 2025 to 7% in 2034, worth USD 0.65 billion rising to USD 1.29 billion. The offsetting side is North America at 27% moving to 24%, Europe at 20% moving to 19%, none of which contracts. Growth is therefore not something a participant inherits from the market; it depends on which regions its revenue is weighted toward.
Growth compounds at 5.95% without a step change. The market moves through USD 8.31 billion in 2020, USD 10.16 billion in 2024, USD 10.85 billion in 2025, USD 11.54 billion in 2026, USD 14.58 billion in 2030 and USD 18.33 billion in 2034. Against 5.48% through the historical period, the 5.95% forecast rate is a continuation; no year in the series interrupts it. The risk in the number sits in the mix assumptions, not in whether the market grows at all, which is where the type and regional sections come in.
Market Growth Factors
Others adds the most incremental growth
Market Drivers
3- 01Others adds the most incremental growth
Others compounds at 9.92% against 5.95% for the market, rising from USD 0.55 billion in 2025 to USD 1.47 billion in 2034 and from 5% of revenue to 8%. Nothing else on the axis grows as fast (Dry Steam manages 3.33%) so the blended 5.95% is carried by this one line instead of shared across them. A portfolio weighted away from it tracks below the market even in a market growing everywhere.
- 02Asia Pacific carries 38% of the base and keeps growing
Asia Pacific is the largest region at USD 4.12 billion in 2025, 38% of global revenue, and reaches USD 7.33 billion by 2034 on a share rising to 40%. Behind it, North America holds 27%; USD 2.93 billion rising to USD 4.4 billion. Because both the existing revenue and the revenue added concentrate in these two, regional weighting matters more to a forecast than regional count does.
- 03Fifteen years of unbroken growth underpin the forecast
The historical period compounded at 5.48%; USD 8.31 billion in 2020, USD 10.16 billion in 2024 and USD 10.85 billion in 2025. The forecast continues at 5.95% to USD 18.33 billion in 2034. A forecast extending an observed trend is a different proposition from one proposing a turn, and that is why no ramp is applied: the 5.95% runs evenly across the period.
Growth drivers
| # | Growth driver | Impact | Gross contribution (Billion) | 2026-28 | 2029-31 | 2032-34 |
|---|---|---|---|---|---|---|
| 1 | Renewable portfolio standard and clean power procurement mandates | High | +2.4 | High | High | Medium |
| 2 | Falling binary cycle plant costs expanding the developable resource base | Medium-High | +1.55 | Medium | High | High |
| 3 | District heating and direct-use expansion in colder climates | Medium | +1.1 | Low | Medium | Medium |
| 4 | Enhanced geothermal system pilots reaching commercial scale | Medium | +0.95 | Low | Medium | High |
| 5 | Energy security policy favoring domestic baseload generation | Medium-High | +1.35 | High | Medium | Medium |
| 6 | Other demand and policy factors | Low | +1.23 | Medium | Medium | Medium |
| Total | +8.58 | |||||
Restraints
| # | Restraint | Impact | Estimated reduction (Billion) | 2026-28 | 2029-31 | 2032-34 |
|---|---|---|---|---|---|---|
| 1 | High upfront exploration and drilling risk | Medium-High | −0.55 | High | Medium | Medium |
| 2 | Permitting and land-access delays near resource areas | Medium | −0.35 | Medium | Medium | Medium |
| 3 | Competition from falling battery storage costs | Low | −0.2 | Low | Medium | Medium |
| Total | −1.1 | |||||
Drivers contribute 8.58 Billion and restraints remove 1.1 Billion, a net 7.48 Billion, which is the revenue the market adds between the base year and 2034. Contributions are CDI estimates, apportioned so that they reconcile with the forecast rather than being read from it.
The 5.95% forecast rate rests on three things that can be measured separately: the size of the existing base, the mix shift on the type axis, and where regional growth is concentrated.
Restraining Factors
The bear case and what drives it
Market Restraints
2- 01The bear case and what drives it
Bear case assumes permitting and financing delays similar to those seen in parts of Europe earlier in the historical period recur in the largest pipeline markets, pushing planned capacity commissioning back by multiple years. On that assumption 2034 revenue lands at USD 16.13 billion against the USD 18.33 billion base case, from the same USD 10.85 billion 2025 starting point.
- 02Flash grows below the market rate
Flash carries 45% of 2025 revenue at USD 4.88 billion but compounds at 5% against 5.95% for the market, taking its share to 40% by 2034 even as revenue rises to USD 7.33 billion. Because it carries that much of the base, its pace holds the blended rate down more than any faster line lifts it.
Market Opportunities
What the bull case turns on
Market Opportunities
2- 01What the bull case turns on
A bull case of USD 20.53 billion by 2034, against USD 18.33 billion in the base case, turns on a single stated assumption: bull case assumes announced capacity additions in Indonesia, the Philippines and Turkey commission on schedule and binary cycle costs fall faster than the base case, pulling new lower-temperature sites into development sooner. The USD 10.85 billion 2025 base is common to both.
- 02Binary Cycle is where share changes hands
Binary Cycle grows at 6.91% against 5.95% for the market, adding revenue from USD 4.12 billion in 2025 to USD 7.88 billion in 2034 and taking its share from 38% to 43%. It is the place on this axis where share changes hands at scale, so it is where an entrant can take position without displacing the incumbent in Flash.
Market Challenges
The total depends on a single line
Market Challenges
2- 01The total depends on a single line
With 45% of 2025 revenue and 40% of 2034 revenue (USD 4.88 billion rising to USD 7.33 billion) Flash is where the market's exposure sits. That concentration means the market's own forecast is, to a large extent, a forecast for one type line.
- 02Single-country exposure in Asia Pacific
Asia Pacific is worth USD 4.12 billion in 2025 and USD 1.57 billion of that is Indonesia; 38.1% of the region, reaching USD 2.93 billion in 2034. The consequence is that regional risk here is really country risk wearing a larger label.
Segmentation Analysis
5 axesfive segmentation axes are reported; by type, by application, capacity, component and power off-take. Each axis cuts the same total revenue along a different commercial dimension, so the splits are alternative views of one market, not additions to it.
All four type lines expand in revenue terms over the forecast period. Share is the dividing line; two take it, the others cede it.
By Type · 4 segments
Flash Held the Dominant Share of the Type Segment in 2025
- Largest Flash · 45%
- Fastest Others · 9.9%
- Moves most Flash · -5 pts
- Order by 2034 changes
| Segment | 2025 | Share | 2034 | Share | CAGR |
|---|---|---|---|---|---|
| Flash | $4.88B | 45% | $7.33B | 40%-5 | 5% |
| Binary Cycle | $4.12B | 38% | $7.88B | 43%+5 | 6.9% |
| Dry Steam | $1.30B | 12% | $1.65B | 9%-3 | 3.3% |
| Others | $0.55B | 5% | $1.47B | 8%+3 | 9.9% |
Flash technology leads because it remains the standard choice for the high-temperature, high-pressure resources that make up most of the developed geothermal fields already in production across Asia Pacific and parts of Latin America. Binary cycle systems grow fastest because they extract value from lower and moderate temperature resources that flash plants cannot use, widening the set of sites that can be developed profitably as the technology matures. By 2034 the largest line is Binary Cycle and no longer Flash, the one axis here where the order actually changes. This is the axis the estimation prices in full, year by year, and the one the regional chapters cut against.
By Application · 4 segments
Residential Outpaces the Axis While Industrial Holds the Largest Share
- Largest Industrial · 42%
- Fastest Residential · 8.4%
- Moves most Residential · +4 pts
- Order by 2034 unchanged
| Segment | 2025 | Share | 2034 | Share | CAGR |
|---|---|---|---|---|---|
| Industrial | $4.56B | 42% | $7.15B | 39%-3 | 5.1% |
| Commercial | $3.58B | 33% | $5.87B | 32%-1 | 5.7% |
| Residential | $1.95B | 18% | $4.03B | 22%+4 | 8.4% |
| Others | $0.76B | 7% | $1.28B | 7% | 6% |
Industrial users lead because process-heat and off-take agreements with large manufacturing and agricultural operations provide the steadiest demand base for geothermal capacity. Residential use is growing fastest as heat pump incentives and district heating programs extend geothermal into home heating and cooling, a segment that barely existed at scale a decade earlier and is now expanding from a much smaller base. By 2034 Industrial is still ahead, making this a shift in weight, not a change of leader.
By Capacity · 3 segments
Above 30 MW Held the Dominant Share of the Capacity Segment in 2025
- Largest Above 30 MW · 55%
- Fastest Up to 5 MW · 7.4%
- Moves most Above 30 MW · -5 pts
- Order by 2034 unchanged
| Segment | 2025 | Share | 2034 | Share | CAGR |
|---|---|---|---|---|---|
| Above 30 MW | $5.96B | 55% | $9.17B | 50%-5 | 4.9% |
| 5 MW to 30 MW | $3.26B | 30% | $6.05B | 33%+3 | 7.1% |
| Up to 5 MW | $1.63B | 15% | $3.11B | 17%+2 | 7.4% |
Utility-scale plants above thirty megawatts continue to account for most capacity because grid operators and large power purchasers favor the lower unit cost that comes with bigger, high-enthalpy resource fields. Smaller plants under thirty megawatts are expanding fastest as binary technology opens up moderate-temperature sites and distributed generation projects that were previously uneconomical to develop at all. Above 30 MW remains the largest line through 2034, so the axis changes in proportion, not in order.
By Component · 2 segments
Scale in Equipment and Growth in Services Define the Component Axis
- Largest Equipment · 68%
- Fastest Services · 7.7%
- Moves most Equipment · -5 pts
- Order by 2034 unchanged
| Segment | 2025 | Share | 2034 | Share | CAGR |
|---|---|---|---|---|---|
| Equipment | $7.38B | 68% | $11.55B | 63%-5 | 5.1% |
| Services | $3.47B | 32% | $6.78B | 37%+5 | 7.7% |
Equipment continues to generate most revenue because every new plant requires turbines, heat exchangers and wellhead systems regardless of resource type or plant scale. Services are growing faster as the installed fleet ages and operators spend more on workover drilling, resource monitoring and plant maintenance to keep existing fields producing at their rated capacity for longer. Services grows fastest here, so its share rises while Equipment gives ground. The order does not change: Equipment is still largest in 2034, and what moves is how much it holds.
By Power Off-take · 2 segments
Scale in Grid-Connected and Growth in Off-Grid/Captive Define the Power off-take Axis
- Largest Grid-Connected · 81%
- Fastest Off-Grid/Captive · 8.3%
- Moves most Grid-Connected · -4 pts
- Order by 2034 unchanged
| Segment | 2025 | Share | 2034 | Share | CAGR |
|---|---|---|---|---|---|
| Grid-Connected | $8.79B | 81% | $14.11B | 77%-4 | 5.4% |
| Off-Grid/Captive | $2.06B | 19% | $4.22B | 23%+4 | 8.3% |
Grid-connected capacity remains dominant because most developed geothermal resources sit within reach of national transmission networks able to absorb steady baseload output. Off-grid and captive supply is growing fastest as island utilities and remote mining or industrial operators turn to on-site geothermal to displace diesel generation where building a transmission connection is not economical. By 2034 Grid-Connected is still ahead, making this a shift in weight, not a change of leader.
Regional Insights
Regional Revenue Share
Base year 2025Share of global revenue in the base year.
Only the leading region's share is published outside the report; pins mark the region, not a specific country.
North America Market Analysis
The 2nd-largest region covered, and the one giving up the most — 3 points of share move elsewhere by 2034.
- Rank 2 of 5
- 2025 share 27%
- By 2034 24%
- Revenue $2.93B → $4.40B
In North America, 27% of global revenue puts 2025 at USD 2.93 billion and reaches USD 4.4 billion by 2034. It is a leading region on this axis, second by revenue throughout the period.
By 2034 the share stands at 24%, a shift in share, not in direction: revenue climbs every year while the market's centre of gravity moves elsewhere.
The type mix reported at global level applies here, with Flash the largest line at 45% of 2025 revenue and Others the fastest-growing at 9.92%. Revenue for North America is broken out by every segmentation axis and by country in the full report.
United States
Sets the pace for North America at 92.2% of it, growing 1.5×.
- In region 1 of 2
- Of region 92.2%
- Of global 24.9%
- Revenue $2.70B → $3.96B
The largest single market in North America is the United States, at USD 2.7 billion in 2025 and USD 3.96 billion in 2034. Carrying 92.2% of the region in the base year, it sets North America's direction instead of merely contributing to it. Set against USD 2.93 billion and USD 4.4 billion for the region, it is why this market, and not a smaller one, is the one reported in full.
Composition here matches the global split: the largest line is Flash at 45% of 2025 revenue, easing to 40% by 2034, and the fastest is Others at 9.92%, from 5% to 8%. Because the country carries 92.2% of North America, a movement in its own mix shows up in the regional totals instead of being averaged away by neighbouring markets. Revenue by type for the United States is reported separately in the full report.
Geothermal power in the United States falls under the Bureau of Land Management for resource leasing on federal land, with the Department of Energy and state utility commissions governing interconnection and power purchase terms. A developer must secure a geothermal lease, complete environmental review under the National Environmental Policy Act, and meet state permitting requirements before drilling. Power plants selling into the grid also answer to state Public Utility Commissions for tariff approval and to the Federal Energy Regulatory Commission where transmission crosses state lines. Equipment and wellhead systems follow API and ASME standards common across the wider energy sector. No unified national geothermal statute exists; oversight is assembled from public-lands, environmental and utility law.
Ormat Technologies Inc. (U.S.), Calpine (U.S.), Mitsubishi Corporation (Japan), Enel Green Power North America Inc. (U.S.), EthosEnergy (U.S.), GEG Power (Iceland), ElectraTherm (U.S.), Toshiba International Corporation (Japan), First Gen Corporation (Philippines), Berkshire Hathaway Energy (U.S.), Turboden S.p.A. (Italy), Reykjavik Geothermal (Iceland) and Others are the suppliers covered in the United States. Two different problems sit on the same axis: holding Flash at 45% of 2025 revenue, and taking Others while it grows at 9.92%. Per-company positioning and share at country level are in the full report only.
Canada
2nd-largest in North America, growing 1.9×.
- In region 2 of 2
- Of region 7.8%
- Of global 2.1%
- Revenue $0.23B → $0.44B
2.1% of global revenue is generated in Canada; USD 0.23 billion in 2025, reaching USD 0.44 billion in 2034, and 7.8% of North America.
Europe Market Analysis
The 3rd-largest region covered — 1 point of share move elsewhere by 2034, while revenue still grows 1.6×.
- Rank 3 of 5
- 2025 share 20%
- By 2034 19%
- Revenue $2.17B → $3.48B
20% of the global geothermal energy market sits in Europe in 2025, worth USD 2.17 billion and reaches USD 3.48 billion by 2034. Among the five regions it ranks third by revenue in both years.
Its share moves to 19% by 2034, and the region keeps growing in absolute terms while others expand faster, a change in relative weight, not a decline in demand.
Segment composition follows the global pattern: Flash largest at 45% of 2025 revenue, Others fastest at 9.92%. The full report breaks Europe out along every axis and by country.
Turkey
The largest market in Europe, growing 1.7×.
- In region 1 of 3
- Of region 40.1%
- Of global 8%
- Revenue $0.87B → $1.46B
USD 0.87 billion of Europe's 2025 revenue is generated in Turkey, the region's largest market, reaching USD 1.46 billion by 2034. It accounts for 40.1% of regional revenue in the base year, the largest single share without dominating the region outright. The region itself runs USD 2.17 billion to USD 3.48 billion over the same period, and this is the market carrying the country-level detail in the full report.
The type pattern in Turkey is the global one: 45% of 2025 revenue in Flash, 40% by 2034, against 9.92% growth in Others taking it from 5% to 8%. Since 40.1% of Europe's revenue is generated here, the regional numbers inherit this market's mix instead of smoothing it out. Turkey carries its own type breakdown in the full report.
In Turkey, geothermal resources are administered under the Geothermal Resources and Natural Mineral Waters Law, with licensing handled by provincial special administrations for exploration and by the Ministry of Energy and Natural Resources for power generation. The General Directorate of Mineral Research and Exploration oversees resource assessment, and the Energy Market Regulatory Authority issues the generation licence a plant needs before selling electricity. Developers must obtain an environmental impact assessment approval, secure the underlying land-use permit, and meet grid-connection standards set by the transmission operator. Wellfield operators also carry obligations under mining-safety rules, since geothermal drilling is treated similarly to subsurface mineral extraction.
Ormat Technologies Inc. (U.S.), Calpine (U.S.), Mitsubishi Corporation (Japan), Enel Green Power North America Inc. (U.S.), EthosEnergy (U.S.), GEG Power (Iceland), ElectraTherm (U.S.), Toshiba International Corporation (Japan), First Gen Corporation (Philippines), Berkshire Hathaway Energy (U.S.), Turboden S.p.A. (Italy), Reykjavik Geothermal (Iceland) and Others are the suppliers covered in Turkey. The commercially relevant division is 45% of 2025 revenue in Flash, where the volume is, against 9.92% growth in Others, where share moves. The commercial size of that position is USD 2.17 billion in 2025 and USD 3.48 billion by 2034, 20% of the global total in the base year.
Italy
2nd-largest in Europe, growing 1.4×.
- In region 2 of 3
- Of region 33.2%
- Of global 6.6%
- Revenue $0.72B → $1.04B
6.6% of global revenue is generated in Italy; USD 0.72 billion in 2025, reaching USD 1.04 billion in 2034, and 33.2% of Europe.
Iceland
3rd-largest in Europe, growing 1.5×.
- In region 3 of 3
- Of region 19.8%
- Of global 4%
- Revenue $0.43B → $0.63B
4% of global revenue is generated in Iceland; USD 0.43 billion in 2025, reaching USD 0.63 billion in 2034, and 19.8% of Europe.
Asia Pacific Market Analysis
The largest region covered — it picks up 2 points of share by 2034, while revenue still grows 1.8×.
- Rank 1 of 5
- 2025 share 38%
- By 2034 40%
- Revenue $4.12B → $7.33B
In Asia Pacific, 38% of global revenue puts 2025 at USD 4.12 billion on the way to USD 7.33 billion by 2034. That makes it the first-largest region covered, in 2025 and again in 2034.
Its share rises to 40% over the forecast period, because it outgrows the market's 5.95%; the revenue added here is disproportionate to where the region started.
The type mix reported at global level applies here, with Flash the largest line at 45% of 2025 revenue and Others the fastest-growing at 9.92%. Asia Pacific is reported axis by axis and country by country in the full study.
Indonesia
The largest market in Asia Pacific, growing 1.9×.
- In region 1 of 3
- Of region 38.1%
- Of global 14.5%
- Revenue $1.57B → $2.93B
The largest single market in Asia Pacific is Indonesia, at USD 1.57 billion in 2025 and USD 2.93 billion in 2034. 38.1% of the region in the base year makes it the largest market here without making it the region. Against regional totals of USD 4.12 billion in 2025 and USD 7.33 billion in 2034, it is the country the full report breaks out in detail.
Demand in Indonesia follows the type mix reported at global level: Flash is the largest line at 45% of 2025 revenue, moving to 40% by 2034, while Others grows fastest at 9.92% and takes its share from 5% to 8%. Because the country carries 38.1% of Asia Pacific, a movement in its own mix shows up in the regional totals instead of being averaged away by neighbouring markets. Revenue by type for Indonesia is reported separately in the full report.
Indonesia's Ministry of Energy and Mineral Resources sets the regulatory framework for geothermal development under the country's Geothermal Law, which replaced the earlier mining-law treatment of the resource with a dedicated licensing regime. A developer must win a geothermal working area through government tender, then secure an environmental permit through the AMDAL assessment process before any exploration well is drilled. Power sales run through a purchase agreement with the state utility, PLN, under tariffs the ministry sets by resource type and location. Local content requirements apply to drilling and plant equipment, and provincial governments hold a parallel role in land and forestry permitting where geothermal fields sit inside protected areas.
In Indonesia the field is Ormat Technologies Inc. (U.S.), Calpine (U.S.), Mitsubishi Corporation (Japan), Enel Green Power North America Inc. (U.S.), EthosEnergy (U.S.), GEG Power (Iceland), ElectraTherm (U.S.), Toshiba International Corporation (Japan), First Gen Corporation (Philippines), Berkshire Hathaway Energy (U.S.), Turboden S.p.A. (Italy), Reykjavik Geothermal (Iceland) and Others. The commercially relevant division is 45% of 2025 revenue in Flash, where the volume is, against 9.92% growth in Others, where share moves. Weighting toward Asia Pacific means competing for 38% of 2025 global revenue, a base of USD 4.12 billion moving to USD 7.33 billion across the forecast period.
Philippines
2nd-largest in Asia Pacific, growing 1.6×.
- In region 2 of 3
- Of region 26.9%
- Of global 10.2%
- Revenue $1.11B → $1.76B
Within Asia Pacific, the Philippines accounts for 26.9% of regional revenue and 10.2% of the global total, worth USD 1.11 billion in 2025 and USD 1.76 billion by 2034.
New Zealand
3rd-largest in Asia Pacific, growing 1.5×.
- In region 3 of 3
- Of region 14.1%
- Of global 5.3%
- Revenue $0.58B → $0.88B
New Zealand is sized at USD 0.58 billion in 2025, rising to USD 0.88 billion by 2034; 5.3% of global revenue and 14.1% of Asia Pacific. It is reported separately from Indonesia across every segmentation axis in the full report.
Latin America Market Analysis
The 4th-largest region covered — it picks up 1 point of share by 2034, while revenue still grows 1.9×.
- Rank 4 of 5
- 2025 share 9%
- By 2034 10%
- Revenue $0.98B → $1.83B
In Latin America, 9% of global revenue puts 2025 at USD 0.98 billion and reaches USD 1.83 billion by 2034. It is a marginal region on this axis, fourth by revenue throughout the period.
Its share rises to 10% over the forecast period, because it outgrows the market's 5.95%; the revenue added here is disproportionate to where the region started.
Flash leads here as it does globally, at 45% of 2025 revenue, and Others again grows fastest at 9.92%. Per-axis and per-country detail for Latin America sits in the full report.
Mexico
The largest market in Latin America, growing 1.7×.
- In region 1 of 2
- Of region 55.1%
- Of global 5%
- Revenue $0.54B → $0.92B
Mexico is the largest market within Latin America, generating USD 0.54 billion in 2025 and projected to reach USD 0.92 billion by 2034. At 55.1% of the region in 2025 it leads, but a majority of Latin America's revenue is generated in other markets. The region itself runs USD 0.98 billion to USD 1.83 billion over the same period, and this is the market carrying the country-level detail in the full report.
The type pattern in Mexico is the global one: 45% of 2025 revenue in Flash, 40% by 2034, against 9.92% growth in Others taking it from 5% to 8%. Because the country carries 55.1% of Latin America, a movement in its own mix shows up in the regional totals instead of being averaged away by neighbouring markets. Revenue by type for Mexico is reported separately in the full report.
Geothermal power in Mexico is governed by the Geothermal Energy Law, administered by the Secretaría de Energía, which grants the authorisations a developer needs to explore and produce from a geothermal field. The Comisión Reguladora de Energía issues the generation permit and sets the terms under which a plant can sell power into the wholesale market operated by CENACE. Developers must complete an environmental impact statement reviewed by SEMARNAT before drilling, and surface-use agreements with landowners are a precondition for any exploration authorisation. Equipment and safety practices follow the technical standards the energy ministry publishes for the sector, alongside general industrial and environmental codes that apply across Mexican energy projects.
The suppliers tracked in this study (Ormat Technologies Inc. (U.S.), Calpine (U.S.), Mitsubishi Corporation (Japan), Enel Green Power North America Inc. (U.S.), EthosEnergy (U.S.), GEG Power (Iceland), ElectraTherm (U.S.), Toshiba International Corporation (Japan), First Gen Corporation (Philippines), Berkshire Hathaway Energy (U.S.), Turboden S.p.A. (Italy), Reykjavik Geothermal (Iceland) and Others) compete in Mexico across the type lines above. Volume sits in Flash at 45% of 2025 revenue; movement sits in Others at 9.92% growth. That makes Latin America a 9% share of 2025 global revenue, USD 0.98 billion rising to USD 1.83 billion, for any supplier deciding where to concentrate.
Costa Rica
2nd-largest in Latin America, growing 1.7×.
- In region 2 of 2
- Of region 25.5%
- Of global 2.3%
- Revenue $0.25B → $0.42B
Costa Rica is sized at USD 0.25 billion in 2025, rising to USD 0.42 billion by 2034; 2.3% of global revenue and 25.5% of Latin America. It is reported separately from Mexico across every segmentation axis in the full report.
Middle East and Africa Market Analysis
The 5th-largest region covered — it picks up 1 point of share by 2034, while revenue still grows 2.0×.
- Rank 5 of 5
- 2025 share 6%
- By 2034 7%
- Revenue $0.65B → $1.29B
Middle East and Africa holds 6% of the global geothermal energy market in 2025, worth USD 0.65 billion rising to USD 1.29 billion in 2034. Among the five regions it ranks fifth by revenue in both years.
By 2034 the share has moved up to 7%, because it outgrows the market's 5.95%; the revenue added here is disproportionate to where the region started.
Within the region the type split tracks the global one; 45% of 2025 revenue in Flash, fastest growth of 9.92% in Others. The full report breaks Middle East and Africa out along every axis and by country.
Kenya
Sets the pace for Middle East and Africa at 70.8% of it, growing 1.8×.
- In region 1 of 2
- Of region 70.8%
- Of global 4.2%
- Revenue $0.46B → $0.84B
USD 0.46 billion of Middle East and Africa's 2025 revenue is generated in Kenya, the region's largest market, reaching USD 0.84 billion by 2034. Carrying 70.8% of the region in the base year, it sets Middle East and Africa's direction instead of merely contributing to it. Set against USD 0.65 billion and USD 1.29 billion for the region, it is why this market, and not a smaller one, is the one reported in full.
The type pattern in Kenya is the global one: 45% of 2025 revenue in Flash, 40% by 2034, against 9.92% growth in Others taking it from 5% to 8%. Its 70.8% weight in Middle East and Africa means those movements carry straight into the regional totals. Per-type revenue for Kenya appears on its own in the full report.
Kenya's geothermal sector answers to the Energy and Petroleum Regulatory Authority, which licenses generation and sets the terms of power purchase agreements with the national utility, Kenya Power. The Geothermal Development Company, a state-owned entity, holds resource rights across the Rift Valley fields and contracts developers for exploration and steam supply. A project needs an environmental impact licence from the National Environment Management Authority before drilling begins, alongside land and water-use approvals where a field sits near protected areas. The Energy Act sets the broader legal framework for generation licensing, tariff approval and grid-connection standards that a geothermal plant must meet before it can supply the national grid.
The suppliers tracked in this study (Ormat Technologies Inc. (U.S.), Calpine (U.S.), Mitsubishi Corporation (Japan), Enel Green Power North America Inc. (U.S.), EthosEnergy (U.S.), GEG Power (Iceland), ElectraTherm (U.S.), Toshiba International Corporation (Japan), First Gen Corporation (Philippines), Berkshire Hathaway Energy (U.S.), Turboden S.p.A. (Italy), Reykjavik Geothermal (Iceland) and Others) compete in Kenya across the type lines above. Volume sits in Flash at 45% of 2025 revenue; movement sits in Others at 9.92% growth. A supplier weighted toward Middle East and Africa is competing over a base of USD 0.65 billion in 2025 reaching USD 1.29 billion by 2034, 6% of global revenue at the start of that period.
Ethiopia
2nd-largest in Middle East and Africa, growing 2.3×.
- In region 2 of 2
- Of region 15.4%
- Of global 0.9%
- Revenue $0.10B → $0.23B
Within Middle East and Africa, Ethiopia accounts for 15.4% of regional revenue and 0.9% of the global total, worth USD 0.1 billion in 2025 and USD 0.23 billion by 2034.
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Report Coverage
This report assesses the market across every segment, with revenue and a growth rate for each line in each year of the study period. It covers the drivers, trends, opportunities, restraints and challenges shaping growth, the competitive landscape and the companies profiled, and the research methodology behind every estimate. Segmentation is reported by Type, Application, Capacity, Component, Power Off-take, and regional analysis covers North America, Europe, Asia Pacific, Latin America, Middle East and Africa, each broken out by country.
Competitive Landscape
Suppliers Compete on Flash Volume and Others Momentum
Suppliers in scope: Ormat Technologies Inc. (U.S.), Calpine (U.S.), Mitsubishi Corporation (Japan), Enel Green Power North America Inc. (U.S.), EthosEnergy (U.S.), GEG Power (Iceland), ElectraTherm (U.S.), Toshiba International Corporation (Japan), First Gen Corporation (Philippines), Berkshire Hathaway Energy (U.S.), Turboden S.p.A. (Italy), Reykjavik Geothermal (Iceland) and Others.
Competition follows the type split, not the regional one. 45% of 2025 revenue, worth USD 4.88 billion, is in Flash, still 40% of the total in 2034; that is the position least likely to change hands. Movement is concentrated in Others; 9.92% growth, against 3.33% at the other end of the axis in Dry Steam. Holding the first and taking the second are separate capabilities, which is why a market of USD 10.85 billion supports as many suppliers as it does.
Scale in resource development separates the largest suppliers: companies with decades of drilling and reservoir-management experience across multiple fields carry lower exploration risk into new projects, which utilities weigh heavily when awarding long-term power purchase agreements. Equipment manufacturers compete on turbine and heat-exchanger efficiency for lower-temperature resources, since that efficiency determines which sites are economical to develop at all. Regional and national developers compete on local permitting relationships, land access and government concession terms, areas where global players often partner instead of competing directly. Distribution matters less than project origination and long-term operating reliability in this market.
Presence matters unevenly by region. With 38% of 2025 revenue in Asia Pacific and 27% in North America, a supplier's coverage of those two decides most of its addressable base before any product question arises.
Per-company profiles, financials, share and development history are in the full report and not here.
List of Key Geothermal Energy Market Companies Profiled
13 companies profiled. Company profiles, including financials, product portfolios and recent developments, are part of the full report.
- Ormat Technologies Inc. (U.S.)
- Calpine (U.S.)
- Mitsubishi Corporation (Japan)
- Enel Green Power North America Inc. (U.S.)
- EthosEnergy (U.S.)
- GEG Power (Iceland)
- ElectraTherm (U.S.)
- Toshiba International Corporation (Japan)
- First Gen Corporation (Philippines)
- Berkshire Hathaway Energy (U.S.)
- Turboden S.p.A. (Italy)
- Reykjavik Geothermal (Iceland)
- Others
Geographic Coverage
Every market below is broken out separately in the report.
North America
3Europe
8Asia Pacific
12Latin America
3Middle East and Africa
4Key Insights
Report Scope
Study parameters & segmentationThis study covers market size and forecasts over the 2020–2034 period, segmentation across 5 axes (Type, Application, Capacity, Component, Power Off-take), regional analysis for 5 regions and their constituent countries, a competitive landscape profiling 13 key companies, and the research methodology behind every estimate.
Segmentation
5 axes + regionFull chapter-and-section structure of the report. Segment, region, and company breakdowns are listed as scope. The underlying figures are in the sample and full report.
Table of Contents+−
Chapter 1.Executive Summary
Chapter 2.Premium Insights
Chapter 3.Market Definition
Chapter 4.Research Methodology
Chapter 5.Strategic Imperatives & Market Outlook
Chapter 6.Go-to-Market (GTM) Strategies
Chapter 7.Market Trends, Strategy & Dynamics
Chapter 8.Porter's Five Forces
Chapter 9.PESTEL Analysis
Chapter 10.Value Chain Analysis
Chapter 11.Supply Chain Analysis
Chapter 12.Macro-Economic Factors
Chapter 13.Market Cost Analysis
Chapter 14.Market Supply-Side Analysis
Chapter 15.Global Geothermal Energy Market Size & Projections, 2020–2034, Revenue (USD Billion)
Chapter 16.Global Geothermal Energy Market Overview, By Type, 2020–2034, Revenue (USD Billion)
Chapter 17.Global Geothermal Energy Market Overview, By Application, 2020–2034, Revenue (USD Billion)
Chapter 18.Global Geothermal Energy Market Overview, By Capacity, 2020–2034, Revenue (USD Billion)
Chapter 19.Global Geothermal Energy Market Overview, By Component, 2020–2034, Revenue (USD Billion)
Chapter 20.Global Geothermal Energy Market Overview, By Power Off-take, 2020–2034, Revenue (USD Billion)
Chapter 21.Global Geothermal Energy Market Size — Segment Comparison
Chapter 22.Global Geothermal Energy Geography Overview, 2020–2034, Revenue (USD Billion)
Chapter 23.North America Geothermal Energy Market Deep-Dive, 2020–2034, Revenue (USD Billion)
Chapter 24.Europe Geothermal Energy Market Deep-Dive, 2020–2034, Revenue (USD Billion)
Chapter 25.Asia Pacific Geothermal Energy Market Deep-Dive, 2020–2034, Revenue (USD Billion)
Chapter 26.Latin America Geothermal Energy Market Deep-Dive, 2020–2034, Revenue (USD Billion)
Chapter 27.Middle East and Africa Geothermal Energy Market Deep-Dive, 2020–2034, Revenue (USD Billion)
Chapter 28.Application / Use-Case Analysis
Chapter 29.Vendor Capability Scorecard
Chapter 30.Scenario Forecasts
Chapter 31.Top 10 Key Clients of Top 10 Players
Chapter 32.Top 10 Suppliers
Chapter 33.Competitive Landscape
Chapter 34.Partnerships & M&A
Chapter 35.Key Vendor Analysis
Chapter 36.Marketing Strategy Analysis, Distributors & Traders
Chapter 37.Outlook of the Market
Chapter 38.Concluding Analyst Note
List of Figures+−
Structural index generated from this report's own section headings, not verified against the delivered report's actual figure numbering.
List of Tables+−
Structural index generated from this report's own section headings, not verified against the delivered report's actual table numbering.
Segmentation Analysis
5 axesBy Type
4- 01Flash
- 02Binary Cycle
- 03Dry Steam
- 04Others
By Application
4- 01Industrial
- 02Commercial
- 03Residential
- 04Others
By Capacity
3- 01Above 30 MW
- 025 MW to 30 MW
- 03Up to 5 MW
By Component
2- 01Equipment
- 02Services
By Power Off-take
2- 01Grid-Connected
- 02Off-Grid/Captive
Segment categories shown for scope reference. See the Summary tab for revenue share by By Type. Full segment-by-segment detail across every axis is available in the sample and full report.
Research approach
A market size is a claim about the world, and a claim is only as good as the route to it. Every study is built upward from units and prices — what is actually produced, sold or performed, at what it actually changes hands for — rather than from a headline figure divided downwards. Disclosed company revenue is then used to check that build, not to produce it.
The estimate is built upward from installed geothermal capacity by plant type and country, drawn from national grid operator and regulatory filings, multiplied by realized capacity factors and by power purchase agreement or feed-in tariff pricing specific to each market to produce generation revenue, with direct-use and district heating volumes priced separately against reported heat-delivery tariffs. This bottom-up build is then checked against revenue disclosed by listed operators and equipment suppliers in annual filings. Where a country's implied realized price sits well outside its published tariff range, the capacity-factor or pricing assumption feeding the bottom-up build is corrected rather than the total being averaged toward the company-disclosed figure.
The four stages
The same sequence runs behind every published study, whatever the industry. The order matters as much as the steps: the segment axes are fixed before any number is collected, so the model is never reshaped to fit whatever data happens to turn up.
What the build rests on, and what checks it
The two are not interchangeable. The left column produces the number; the right column tests it. When the check disagrees with the build, the answer is to find which bottom-up assumption is wrong — a unit count, a price, a take-up rate — not to split the difference between them.
- Volume actually transacted — units produced, installed, dispensed or procedures performed, counted at the level each is genuinely recorded
- Realised pricing by tier and channel, rather than one blended average applied across the whole market
- Take-up and frequency: how much of the addressable base buys, and how often it repeats
- Disclosed revenue of the companies serving the market, where filings separate it far enough to be usable
- Buyer-side spending totals — capital budgets, procurement lines, or the output of the end market the product is bought against
- Trade and customs flows, where the product crosses borders in a separately recorded form
Data sources
Published data establishes what happened. Only the people transacting in a market can say why, and what is about to change — so the two are collected separately and weighted differently.
- Commercial and product leadership at the companies that supply the market
- Procurement and specification leads at the organisations that buy it
- Distributors, integrators and channel partners, where the market is served indirectly
- Regulatory and standards specialists, where approval governs what can be sold at all
- Company filings, annual reports and investor disclosure
- Government statistics, customs records and regulatory registers
- Trade association output and standards-body publications
- Technical and peer-reviewed literature, where the market rests on a clinical or engineering claim
Interviews target utility procurement managers negotiating power purchase agreements, independent power producer project developers, drilling and well-field contractors, and equipment procurement leads at turbine and heat-exchanger manufacturers, plus regulatory staff who administer geothermal concessions and feed-in tariff programs. Sampling weights toward Indonesia, the Philippines, Turkey and the United States, where the largest share of active and planned capacity sits, with additional coverage in Iceland, Italy, Kenya and New Zealand to capture direct-use and smaller grid markets. Conversations focus on realized project costs, financing terms for new capacity, permitting timelines and the resource risk that shapes which prospects reach construction.
Desk research draws on national energy ministry and grid-operator capacity registers in Indonesia, the Philippines, Turkey, Kenya and the United States, IRENA's renewable capacity statistics, IEA geothermal tracking data, and public feed-in tariff and power purchase agreement schedules published by regulators in each market. Company-level detail comes from annual reports and investor filings of listed operators and equipment suppliers, supplemented by concession and licensing registers maintained by national geothermal authorities and customs classification data for turbine and wellhead equipment trade flows.
Desk research runs across proprietary research databases including Factiva, OneSource and Hoovers alongside the public sources above. Modelling and statistical validation are run in SAS and SPSS.
Forecasting
The forecast is not a growth rate applied to a base year. It is built from the drivers that are expected to change, each one stated so a reader can disagree with it.
The forecast is built from planned and under-construction capacity additions tracked by country against typical multi-year development timelines from exploration to commissioning, adjusted for each market's permitting and financing pace. Pricing assumes power purchase agreement rates ease slightly as binary cycle costs fall, while direct-use tariffs track general energy price trends in each region. The path normalizes for the unusually slow permitting years seen in parts of Europe earlier in the historical period. For the forecast to hold, announced capacity pipelines in Indonesia, the Philippines and Turkey need to reach commissioning on their stated timelines instead of slipping by multiple years, as has occurred previously in this market.
Triangulation and validation
No figure enters a report on the strength of one source. Where the two sizing routes disagree the difference is not averaged away — the assumption causing it is isolated, tested against a third independent measure, and either corrected or carried forward as a stated limitation. Historical years are back-tested against the growth actually recorded before any forecast is allowed to run forward from them.
Historical 2020-2024 output was back-tested against recorded capacity-addition and generation data from grid operators in the largest markets to confirm the bottom-up build reproduces actual reported growth. Segment-level shifts, including the move toward binary cycle plants and the growing off-grid and captive share, were reviewed against operator commentary in recent filings. Sensitivities were run on capacity-factor assumptions and on the pace of planned-project completion, since those two inputs move the forecast more than any pricing assumption. Regional splits were checked against the concentration of announced capacity in Indonesia, the Philippines and Turkey to confirm the geographic weighting matches where new supply is actually being built.
Confidence and limitations
Where an estimate is firm and where it is not is stated rather than left to be inferred from the precision of the number.
Confidence is strongest for utility-scale flash and binary cycle capacity in Indonesia, the Philippines, Turkey and the United States, where grid-operator capacity data and power purchase agreement pricing are both public and current. It is weaker for direct-use and district heating volumes outside Iceland, where reporting is thinner and often bundled with broader renewable heat statistics. Off-grid and captive supply carries the least certainty, since much of it serves private industrial or mining sites that disclose little. A structural risk to the forecast is permitting delay in new markets, which has repeatedly pushed announced projects several years past their original commissioning date.
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Questions This Report Answers
6 questionsWhat is the market size and growth rate, globally and by region?
How is the market segmented, and which segments lead?
Which regions and countries are covered, and how do they compare?
What are the key drivers, restraints, opportunities and challenges?
Who are the leading companies operating in this market?
What trends are expected to shape the market through the forecast period?
Frequently Asked Questions
01What is the Geothermal Energy Market projected to reach?
USD 18.33 Billion by 2034, CAGR 5.95%
02What years does this report cover?
Study period 2020–2034, base year 2025, historical data 2020-2024, forecast period 2026-2034.
03Which regions are covered?
North America, Europe, Asia Pacific, Latin America, Middle East and Africa.
04Which region accounted for the largest market share?
Asia Pacific leads with 38% of global revenue through 2034.
05Which segment leads the market?
Flash is the largest line by Type, at 45% of revenue in 2025.
06Who are the key companies profiled?
Ormat Technologies Inc. (U.S.), Calpine (U.S.), Mitsubishi Corporation (Japan), Enel Green Power North America Inc. (U.S.), EthosEnergy (U.S.), GEG Power (Iceland), ElectraTherm (U.S.), Toshiba International Corporation (Japan), First Gen Corporation (Philippines), Berkshire Hathaway Energy (U.S.), Turboden S.p.A. (Italy), Reykjavik Geothermal (Iceland), Others. Full profiles are part of the paid report.
07Can the segmentation be customized?
Yes. Custom data cuts by geography, segment, or competitor set are available on request.
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