Geothermal growth, with real execution risk
- Ormat's core business is long-term contracted geothermal power, but Q1 revenue was nearly split between Electricity and Products.
- The Product segment grew 458.4% year over year in Q1, helped by $105.1 million from the TOPP2 power plant sale.
- Energy Storage grew 153.1% year over year, but management said the 59.1% Q1 gross margin was helped by temporary merchant power prices.
- Enhanced Geothermal Systems, or EGS, could open much larger markets if Ormat can prove the wells, costs, and new equipment work.
- Overdue bills from KPLC and ENEE remain a watch item, with $31.3 million and $26.5 million overdue at March 31, 2026.
A cleaner growth story, not a cheap one
Ormat is a rare public pure play on geothermal power. Its base business is steady: build power plants, own them, and sell the electricity under long contracts. That makes it different from many wind and solar developers, because geothermal can run day and night.
The bull case has become more concrete. Management has now put sizes and timing around its first EGS pilots with SLB and Sage Geosystems: 2 to 4 MW each, with initial production expected in 2027. Ormat also introduced a larger standardized binary unit, the Ormega100, aimed at making EGS plants easier and cheaper to build over time.
The bear case is that the new growth pieces are still uneven. Q1 Product revenue was huge, but part of it came from one large New Zealand project sale. Energy Storage had a record quarter, but management said the strong merchant prices in PJM are not expected to last, and full-year storage gross margin is guided to 35% to 40%, below Q1's 59.1%.
Finn's scores are middling, with the weakest read on valuation and financial health. That fits the story: Ormat owns valuable assets and has real long-term upside, but investors are paying ahead of proof on EGS, storage margins, and customer collections.
Own the plant, sell the power
Ormat makes money in three ways. First, it owns power plants and sells electricity, mostly through power purchase agreements, or PPAs. A PPA is a long-term contract that says who buys the power, how much they buy, and often what price they pay.
Second, Ormat sells equipment and services to other geothermal and recovered energy projects. Its key product is the Ormat Energy Converter, or OEC, which turns heat into electricity. The company is now building a standardized OEC for EGS, where the underground resource can have different heat and pressure than older geothermal fields.
Third, Ormat owns battery storage projects. These batteries can earn money by selling power, capacity, and grid services. This can grow fast, but it can also swing with power prices, which is why Q1 storage profits should not be treated as a normal run rate.
Management's 2028 targets are large: 1.65 to 1.75 GW of Electricity capacity and 950 to 1,050 MW of Energy Storage capacity, equal to 2,500 to 2,900 MWh. Reaching those targets will take capital, permits, customers, and reliable project execution.
Power plants, parts, and batteries
Electricity
This is the owned power plant business. Ormat develops, builds, owns, and operates geothermal, solar PV, and recovered energy plants, then sells electricity to utilities and large buyers.
Products
This segment sells geothermal and recovered energy equipment, including OEC units, and provides project services. Q1 was very strong, but the TOPP2 sale made the result lumpy.
Energy Storage
Ormat owns grid batteries that earn money from power markets and grid services. The segment is growing fast, but Q1 benefited from unusually favorable merchant prices.
Enhanced Geothermal Systems
EGS tries to make geothermal work in more places by engineering the underground reservoir. Ormat's pilots are small today, at 2 to 4 MW each, but success could open larger future projects.
Hyperscaler PPAs
Data center operators want clean power that runs all the time. Ormat's long-term Google PPA for up to 150 MW supports this demand story, but exact pricing and returns remain open questions.
Q1 mix shifted hard
Segment mix is from the three months ended March 31, 2026. Product revenue was lifted by the $105.1 million TOPP2 sale, so this quarter's mix may not reflect a normal year.
What can break the story
EGS does not scale
High impact · Medium oddsEGS is the biggest long-term upside and one of the biggest risks. The technology has real drilling, reservoir, well productivity, thermal recovery, induced seismicity, and permitting risks. If the pilots miss cost or output targets, the market may cut the value it gives Ormat for future growth.
Storage margins fall back
Medium impact · High oddsEnergy Storage had a strong Q1, with 153.1% revenue growth and a 59.1% gross margin. Management said favorable PJM merchant pricing drove much of that strength and guided full-year storage gross margin to 35% to 40%. A weaker price backdrop could make this segment look less profitable than the Q1 headline suggests.
Utility customers pay late
Medium impact · Medium oddsKPLC in Kenya and ENEE in Honduras are important customers, and overdue balances remain large. At March 31, 2026, KPLC had $31.3 million overdue and ENEE had $26.5 million overdue. Ormat received partial April payments, but slow collections can pressure cash flow and raise credit concerns.
Product revenue stays lumpy
Medium impact · Medium oddsThe Product segment grew 458.4% year over year in Q1, but $105.1 million came from the TOPP2 power plant sale. That makes the quarter impressive but not fully repeatable. The $239 million backlog helps, and the company has secured $56 million in new contracts since the start of the year, but timing can still swing results.
Israel exposure disrupts operations
Medium impact · Low oddsOrmat has senior management and manufacturing facilities in Israel. Geopolitical shocks could affect people, production, shipping, or investor sentiment. This risk has not changed, but it remains important because Ormat is vertically integrated and depends on its own equipment.
In one breath
What does Ormat Technologies do?
Ormat builds, owns, and operates geothermal, solar, recovered energy, and battery storage assets. It also sells geothermal equipment and services to other project owners.
Why is geothermal important for data centers?
Geothermal power can run day and night, unlike solar or wind. That makes it attractive to data centers that need clean power with steady output.
What is EGS for Ormat?
EGS means Enhanced Geothermal Systems. It uses engineering to make underground heat resources usable in more places, but Ormat still has to prove the wells, costs, and long-term output.
Why is Ormat's Q1 storage result risky to repeat?
Q1 Energy Storage results were helped by high merchant prices in PJM. Management said it does not expect similar merchant pricing for the rest of 2026.