Khosla Ventures

Mainspring Energy, Inc. is a technology company based in Menlo Park, California, that specializes in developing linear generator technology for low carbon, dispatchable energy solutions. Founded in 2010 by three Stanford engineers, the company focuses on creating advanced prototypes that convert fuel into electricity through a unique, low-temperature reaction of air and fuel. This innovative approach allows Mainspring to offer generators that provide affordable, reliable electricity while significantly reducing carbon emissions compared to traditional electric grids. The company's mission is to address climate change and enhance energy accessibility, contributing to the development of net-zero carbon energy systems for the future.

RedoxBlox develops thermochemical energy storage technology to decarbonize high-temperature industrial thermal processing and provide long-duration energy storage for the grid. The technology enables continuous high-temperature heat while integrating with existing infrastructure to replace natural gas combustion, supporting electrification and renewables deployment. It reduces carbon dioxide and nitrogen oxides emissions, enhances safety and resilience, and aims to lower total capital cost for industrial processors and power plant operators. By delivering scalable, long-duration heat, RedoxBlox helps industries leverage renewable energy and move toward low-emission operations.

Realta Fusion develops fusion energy technology for industrial heat and power production. It combines advancements in superconducting materials, plasma physics, and computing power in a simple linear fusion reactor design, utilizing abundant fuel sources to generate zero-carbon heat and power.

Mainspring Energy, Inc. is a technology company based in Menlo Park, California, that specializes in developing linear generator technology for low carbon, dispatchable energy solutions. Founded in 2010 by three Stanford engineers, the company focuses on creating advanced prototypes that convert fuel into electricity through a unique, low-temperature reaction of air and fuel. This innovative approach allows Mainspring to offer generators that provide affordable, reliable electricity while significantly reducing carbon emissions compared to traditional electric grids. The company's mission is to address climate change and enhance energy accessibility, contributing to the development of net-zero carbon energy systems for the future.

Mainspring Energy, Inc. is a technology company based in Menlo Park, California, that specializes in developing linear generator technology for low carbon, dispatchable energy solutions. Founded in 2010 by three Stanford engineers, the company focuses on creating advanced prototypes that convert fuel into electricity through a unique, low-temperature reaction of air and fuel. This innovative approach allows Mainspring to offer generators that provide affordable, reliable electricity while significantly reducing carbon emissions compared to traditional electric grids. The company's mission is to address climate change and enhance energy accessibility, contributing to the development of net-zero carbon energy systems for the future.

Verdagy specializes in innovative water electrolysis technology for large-scale green hydrogen production. Based in Moss Landing, California, the company operates laboratory and pilot plant facilities to advance its technology platform, aiming to achieve low upfront capital costs and competitive unit economics.

Mainspring Energy, Inc. is a technology company based in Menlo Park, California, that specializes in developing linear generator technology for low carbon, dispatchable energy solutions. Founded in 2010 by three Stanford engineers, the company focuses on creating advanced prototypes that convert fuel into electricity through a unique, low-temperature reaction of air and fuel. This innovative approach allows Mainspring to offer generators that provide affordable, reliable electricity while significantly reducing carbon emissions compared to traditional electric grids. The company's mission is to address climate change and enhance energy accessibility, contributing to the development of net-zero carbon energy systems for the future.

Mainspring Energy, Inc. is a technology company based in Menlo Park, California, that specializes in developing linear generator technology for low carbon, dispatchable energy solutions. Founded in 2010 by three Stanford engineers, the company focuses on creating advanced prototypes that convert fuel into electricity through a unique, low-temperature reaction of air and fuel. This innovative approach allows Mainspring to offer generators that provide affordable, reliable electricity while significantly reducing carbon emissions compared to traditional electric grids. The company's mission is to address climate change and enhance energy accessibility, contributing to the development of net-zero carbon energy systems for the future.

Ciris Energy, Inc. is a technology company founded in 2007 and based in Centennial, Colorado. It specializes in the development of proprietary technologies aimed at producing electricity from buried coal and other hydrocarbon deposits. The company focuses on biologically converting coal to methane in large-scale quantities, striving to create a more environmentally responsible and economically efficient method of producing natural gas from coal. Through its innovative approaches, Ciris Energy seeks to enable clients to access coal as a renewable form of energy.

Mainspring Energy, Inc. is a technology company based in Menlo Park, California, that specializes in developing linear generator technology for low carbon, dispatchable energy solutions. Founded in 2010 by three Stanford engineers, the company focuses on creating advanced prototypes that convert fuel into electricity through a unique, low-temperature reaction of air and fuel. This innovative approach allows Mainspring to offer generators that provide affordable, reliable electricity while significantly reducing carbon emissions compared to traditional electric grids. The company's mission is to address climate change and enhance energy accessibility, contributing to the development of net-zero carbon energy systems for the future.

AltaRock Energy, Inc., established in 2007, is a geothermal energy technology and services company. Headquartered in Seattle, Washington, with additional offices in Sausalito, California, AltaRock specializes in the development and commercialization of geothermal technology to produce clean, renewable power. The company offers a range of services, including project development, management, operations, performance improvement, and reservoir maintenance for both new and existing geothermal projects. AltaRock is also involved in greenfield enhanced geothermal systems projects and commercial stimulation services, aiming to expand the capacity of existing geothermal resources and increase profitability. The company's leadership includes Don O'Shei, Chief Executive Officer, and Susan Petty, President and Chief Technology Officer.

Infinia Corporation is a solar energy technology company that specializes in the development of innovative power generation systems. The company's flagship product, the PowerDish, is a proprietary solar power generation device that efficiently converts solar energy into electricity. Infinia also provides micro combined heat and power systems targeted at residential energy consumers, as well as solar and biomass-powered electric generators designed for various applications, including deep space missions and remote power needs. The PowerDish is aimed at energy asset developers, utilities, and commercial companies involved in large-scale solar projects, with a global launch anticipated to have begun in late 2010.

Infinia Corporation is a solar energy technology company that specializes in the development of innovative power generation systems. The company's flagship product, the PowerDish, is a proprietary solar power generation device that efficiently converts solar energy into electricity. Infinia also provides micro combined heat and power systems targeted at residential energy consumers, as well as solar and biomass-powered electric generators designed for various applications, including deep space missions and remote power needs. The PowerDish is aimed at energy asset developers, utilities, and commercial companies involved in large-scale solar projects, with a global launch anticipated to have begun in late 2010.

AltaRock Energy, Inc., established in 2007, is a geothermal energy technology and services company. Headquartered in Seattle, Washington, with additional offices in Sausalito, California, AltaRock specializes in the development and commercialization of geothermal technology to produce clean, renewable power. The company offers a range of services, including project development, management, operations, performance improvement, and reservoir maintenance for both new and existing geothermal projects. AltaRock is also involved in greenfield enhanced geothermal systems projects and commercial stimulation services, aiming to expand the capacity of existing geothermal resources and increase profitability. The company's leadership includes Don O'Shei, Chief Executive Officer, and Susan Petty, President and Chief Technology Officer.

Infinia Corporation is a solar energy technology company that specializes in the development of innovative power generation systems. The company's flagship product, the PowerDish, is a proprietary solar power generation device that efficiently converts solar energy into electricity. Infinia also provides micro combined heat and power systems targeted at residential energy consumers, as well as solar and biomass-powered electric generators designed for various applications, including deep space missions and remote power needs. The PowerDish is aimed at energy asset developers, utilities, and commercial companies involved in large-scale solar projects, with a global launch anticipated to have begun in late 2010.

Realta Fusion develops fusion energy technology for industrial heat and power production. It combines advancements in superconducting materials, plasma physics, and computing power in a simple linear fusion reactor design, utilizing abundant fuel sources to generate zero-carbon heat and power.