New and recently funded Energy Startups
1
Country: Germany
Everllence develops power plant engines, turbines, compressors that use climate-neutral fuels to reduce carbon emissions. Its energy solutions include Power-to-X technology that converts electricity into carbon-neutral synthetic fuels, heat pumps, energy storage (CAES, LAES & CO2 battery) and thermal power plants. Everllence is a one-stop shop for thermal power solutions – providing everything from planning to operation of power plants. Its solutions run on fossil fuels as well as renewables like solar power, biomass, waste and geothermal energy. The company also develops carbon capture and storage technologies to ensure that unavoidable carbon emissions can be extracted from industrial processes safely. Through its subsidiary Quest One the company manufactures electrolyzers for producing green hydrogen.
Everllence develops power plant engines, turbines, compressors that use climate-neutral fuels to reduce carbon emissions. Its energy solutions include Power-to-X technology that converts electricity into carbon-neutral synthetic fuels, heat pumps, energy storage (CAES, LAES & CO2 battery) and thermal power plants. Everllence is a one-stop shop for thermal power solutions – providing everything from planning to operation of power plants. Its solutions run on fossil fuels as well as renewables like solar power, biomass, waste and geothermal energy. The company also develops carbon capture and storage technologies to ensure that unavoidable carbon emissions can be extracted from industrial processes safely. Through its subsidiary Quest One the company manufactures electrolyzers for producing green hydrogen.
2
Country: USA | Funding: $4.9B
Recurrent Energy, a subsidiary of Canadian Solar Inc. (global renewable energy company) that is building one of the world's largest and most geographically diversified platforms for developing, owning and operating solar and energy storage projects. It is a leading global developer, owner and operator of solar and energy storage systems, with over 14 GW of project capacity under long-term operation and maintenance agreements.
Recurrent Energy, a subsidiary of Canadian Solar Inc. (global renewable energy company) that is building one of the world's largest and most geographically diversified platforms for developing, owning and operating solar and energy storage projects. It is a leading global developer, owner and operator of solar and energy storage systems, with over 14 GW of project capacity under long-term operation and maintenance agreements.
3
Country: USA | Funding: $4.8B
Bloom Energy offers on-site power generation systems that can use a wide variety of inputs to generate electricity.
Bloom Energy offers on-site power generation systems that can use a wide variety of inputs to generate electricity.
4
Country: USA
SolarSpace is developing a next-generation concentrated solar power (CSP) technology developed at the University of Arizona's Steward Observatory Mirror Laboratory. Lightweight mirror technology enabled the creation of some of the world's largest mirrors (9.2 m²) that focus sunlight. At the focal point, light enters a small power conversion unit (PCU) through a spherical lens, where it is converted into electricity by small, highly efficient multi-junction solar cells. Patented optics deliver 1,000-fold concentrated sunlight to the cells, distributing it evenly among them, resulting in extremely high overall efficiency. Multiple mirror modules are mounted on a lightweight, dual-axis tracker and aimed directly at the sun, maximizing total power output from sunrise to sunset. SolarSpace has licensed the Transmission Energy Efficiency System (TREES) from NASA and signed a Space Act Agreement with NASA.
SolarSpace is developing a next-generation concentrated solar power (CSP) technology developed at the University of Arizona's Steward Observatory Mirror Laboratory. Lightweight mirror technology enabled the creation of some of the world's largest mirrors (9.2 m²) that focus sunlight. At the focal point, light enters a small power conversion unit (PCU) through a spherical lens, where it is converted into electricity by small, highly efficient multi-junction solar cells. Patented optics deliver 1,000-fold concentrated sunlight to the cells, distributing it evenly among them, resulting in extremely high overall efficiency. Multiple mirror modules are mounted on a lightweight, dual-axis tracker and aimed directly at the sun, maximizing total power output from sunrise to sunset. SolarSpace has licensed the Transmission Energy Efficiency System (TREES) from NASA and signed a Space Act Agreement with NASA.
5
Country: Japan | Funding: $35M
Helical Fusion is developing helical-type fusion reactor. Their helical design keeps incredibly hot ionized gas contained steadily by itself, eliminating the need for external electrical power and allowing operations to run longer than with rival technologies. The company has finished testing a superconducting magnet that could work on a commercial scale. This marks the first time a commercial-scale coil has operated successfully under such conditions. The company plans to construct demonstration equipment by the decade's end. During the 2030s, Helical Fusion aims to launch its first pilot facility operating continuously while generating more power than it uses.
Helical Fusion is developing helical-type fusion reactor. Their helical design keeps incredibly hot ionized gas contained steadily by itself, eliminating the need for external electrical power and allowing operations to run longer than with rival technologies. The company has finished testing a superconducting magnet that could work on a commercial scale. This marks the first time a commercial-scale coil has operated successfully under such conditions. The company plans to construct demonstration equipment by the decade's end. During the 2030s, Helical Fusion aims to launch its first pilot facility operating continuously while generating more power than it uses.
6
Country: Israel | Funding: $840.3M
BrightSource Energy develops OASES - AI-powered software for energy companies that allows to maximize the efficiency, reliability, and profitability of renewable energy generation and storage projects. It transforms distributed power plant operations, delivering higher productivity and long-term resilience, real-time plant monitoring, regulatory compliance, revenue optimization across multiple markets, provides real-time, day-ahead and intraday forecasting and trading data, ancillary services and distributed asset portfolio aggregation. The company has deployed its solutions in several major projects, including solar thermal plants in Israel, California, Dubai, and South Africa.
BrightSource Energy develops OASES - AI-powered software for energy companies that allows to maximize the efficiency, reliability, and profitability of renewable energy generation and storage projects. It transforms distributed power plant operations, delivering higher productivity and long-term resilience, real-time plant monitoring, regulatory compliance, revenue optimization across multiple markets, provides real-time, day-ahead and intraday forecasting and trading data, ancillary services and distributed asset portfolio aggregation. The company has deployed its solutions in several major projects, including solar thermal plants in Israel, California, Dubai, and South Africa.
7
Country: USA | Funding: $126M
Antares designs and builds microfission reactors for strategic energy applications, including space missions, commercial and military energy resilience. The R1 microreactor can produce from 100 kilowatts to 1 megawatt and uses TRISO fuel, which consists of uranium spheres coated with carbon and ceramics, embedded in graphite. The company performs high-precision machining of the nuclear graphite in-house, speeding design iterations. The optimized reactor design simplifies deployment with a minimal number of actuators. The control drums, made of graphite and boron carbide, have independent actuators, inspired by the designs of historical space reactors. Antares has a manufacturing facility in California and has already tested the first electrically heated demonstration unit (EDU).
Antares designs and builds microfission reactors for strategic energy applications, including space missions, commercial and military energy resilience. The R1 microreactor can produce from 100 kilowatts to 1 megawatt and uses TRISO fuel, which consists of uranium spheres coated with carbon and ceramics, embedded in graphite. The company performs high-precision machining of the nuclear graphite in-house, speeding design iterations. The optimized reactor design simplifies deployment with a minimal number of actuators. The control drums, made of graphite and boron carbide, have independent actuators, inspired by the designs of historical space reactors. Antares has a manufacturing facility in California and has already tested the first electrically heated demonstration unit (EDU).
8
Country: USA | Funding: $218.8M
Kaleidos produces a portable nuclear microreactor that replaces diesel generators. It is a compact nuclear reactor (1 MW) with all the necessary equipment to generate electricity for remote villages and facilities, as well as backup power for hospitals and data centers. It requires no on-site water consumption thanks to the use of fans for air cooling. Helium conducts heat away from the core and does not become radioactive, eliminating the impact of leaks. Meltdown-resistant TRISO fuel, consisting of uranium particles coated with a ceramic coating, has been used in more than 30 grid-scale reactors since the 1960s. The reactor is assembled and fueled at the factory and delivered by truck or plane. Kaleidos mass-produces microreactors for US military bases.
Kaleidos produces a portable nuclear microreactor that replaces diesel generators. It is a compact nuclear reactor (1 MW) with all the necessary equipment to generate electricity for remote villages and facilities, as well as backup power for hospitals and data centers. It requires no on-site water consumption thanks to the use of fans for air cooling. Helium conducts heat away from the core and does not become radioactive, eliminating the impact of leaks. Meltdown-resistant TRISO fuel, consisting of uranium particles coated with a ceramic coating, has been used in more than 30 grid-scale reactors since the 1960s. The reactor is assembled and fueled at the factory and delivered by truck or plane. Kaleidos mass-produces microreactors for US military bases.
9
Country: USA | Funding: $332.6M
Heliogen is developing CSP technology that enables commercial replacement of fossil fuels in industrial processes with carbon-free, ultra-high-temperature solar thermal energy and the conversion of sunlight into fuels, including hydrogen, on large scale. Heliogen has built a Solar Thermal Energy Plant powered by advanced computing and mature low-carbon technologies in Lancaster. Its heliostat tracking and hybrid CSP+PV systems optimize solar energy production, while long-duration energy storage ensures on-demand high-capacity power. The company supplies thermal and electrical energy for industrial, utility and data center operations.
Heliogen is developing CSP technology that enables commercial replacement of fossil fuels in industrial processes with carbon-free, ultra-high-temperature solar thermal energy and the conversion of sunlight into fuels, including hydrogen, on large scale. Heliogen has built a Solar Thermal Energy Plant powered by advanced computing and mature low-carbon technologies in Lancaster. Its heliostat tracking and hybrid CSP+PV systems optimize solar energy production, while long-duration energy storage ensures on-demand high-capacity power. The company supplies thermal and electrical energy for industrial, utility and data center operations.
10
Country: USA | Funding: $431.2M
ESS creates long-duration energy storage (LDES) systems ideal for AI data centers, commercial and industrial facilities, utilities, microgrids and off-grid applications. They utilize an innovative iron-flow flow battery system, that uses natural elements such as iron, salt and water as electrolytes. Iron Flow technology provides unlimited cycles with zero capacity degradation over a 25-year design life. This means the batteries can be charged and discharged several times a day. ESS's gigawatt energy storage system can be deployed in months, not years. With energy storage for up to 22 hours, ESS solutions enable intermittent energy to provide baseload power. Honeywell is a major investor.
ESS creates long-duration energy storage (LDES) systems ideal for AI data centers, commercial and industrial facilities, utilities, microgrids and off-grid applications. They utilize an innovative iron-flow flow battery system, that uses natural elements such as iron, salt and water as electrolytes. Iron Flow technology provides unlimited cycles with zero capacity degradation over a 25-year design life. This means the batteries can be charged and discharged several times a day. ESS's gigawatt energy storage system can be deployed in months, not years. With energy storage for up to 22 hours, ESS solutions enable intermittent energy to provide baseload power. Honeywell is a major investor.
