AltaRock Energy is a full-service geothermal energy technology and services company. AltaRock’s experienced team, innovative technology and creative approach turns under performing assets into highly profitable energy projects, building and operating the geothermal power plants of the future.



Ausra manufactures and develops utility-scale solar technologies to serve global electricity needs in a market competitive and environmentally responsible manner. The company was acquired by AREVA, which specializes in nuclear and renewable energy.

Ciris Energy develops technology for the production of electricity from buried coal and other hydrocarbon deposits. Their technologies, ISBCTM and ESBCTM, share a common component: the microbial bio conversion of carbon. The ISBC technology process is conducted below ground in coal seams where indigenous microbes convert coal to methane. The ESBC technology is conducted above ground after coal has been mined and combines a low cost thermochemical pretreatment of coal with engineered microbes to convert coal to chemicals and methane.

Cogenra’s mission is to enable widespread adoption of clean renewable energy by providing efficient, flexible solar electricity at lower costs than conventional fossil fuel alternatives. The company offers large distributed and utility-scale solar solutions that leverage upstream progress in the crystalline silicon PV cell industry, low-cost construction materials and innovative business models with highly-scalable worldwide module manufacturing capacity.

EtaGen is merging the aspirations of clean tech with the practicality of tried-and-true technology to revolutionize the way electricity is generated and delivered. By taking a fundamental approach to efficient power generation, the company has eliminated the key constraints of conventional engine architecture. The result is an on-site power generation system that makes categorical leaps in efficiency, reliability, cost and emissions performance.

GreatPoint Energy produces clean, low cost natural gas from coal, petroleum coke and biomass utilizing its bluegas™ catalytic hydromethanation process.

Stion is a solar photovoltaic company developing high-efficiency thin-film modules. The company aims to minimize the total installed system costs of solar electricity. In addition to delivering the reduced material and processing costs associated with thin films, Stion cuts dollar-per-watt costs at the system level by generating the same power using a smaller product, thus making PV economically feasible to more customers.

SunBorne Energy is a solar power company developing utility scale power plants.

TerraPower is a nuclear energy technology company that is working to raise living standards globally. The company’s goal is to provide the world with a more affordable, secure and environmentally friendly form of nuclear energy.

"While being foolish enough to dream the dreams, an entrepreneur should be smart enough to get every critique he can, every skeptics opinion about what can go wrong, and plan for his/her liabilities in addition to his/her assets."

"You don't do extraordinary things by attempting ordinary things."