Lowercarbon Capital

Lowercarbon Capital is a venture capital firm founded in 2018 and based in Jackson, Wyoming, that funds research and invests in companies developing technologies to reduce CO2 emissions and advance decarbonization, with a focus on energy, transportation, industrial materials, and agriculture.
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Sidney Brown

Associate

Duncan Carlson

Associate

Christina Chang

Partner

Clay Dumas

General Partner

Kristin Ellis

Partner

Eric Helfgott

Associate

Caie Kelley

Principal

Clea Kolster

Partner

Ryan Orbuch

Partner

Lauren O'Connor

Operating Partner

Alex Prather

Associate

Ashton Rosin

Operating Partner and Head of Capital Formation

Crystal English Sacca

Partner

Shawn Xu

Partner

Shuo Yang

Partner

Past deals in Energy

Electra

Series B in 2025
Electra is a company dedicated to revolutionizing iron and steel production by significantly reducing carbon dioxide emissions. It specializes in alternative steelmaking technology that employs innovative electrochemical and hydrometallurgical processes. By electrifying and decarbonizing the steelmaking process, Electra enables the production of low-carbon clean iron from various ores and renewable energy sources. This approach not only minimizes the environmental impact associated with traditional steel production but also helps companies lower energy intensity and costs, promoting sustainability within the industry.

Crux

Series B in 2025
Crux is the capital markets technology company changing the way clean energy and manufacturing projects are financed in the U.S. Crux’s platform, market intelligence, and expert team help developers and manufacturers raise capital through all stages of project development and operation. The company’s first offering is the leading platform for tax credit transfers. Since its launch in 2023, Crux has raised more than $27 million in funding from venture capital and strategic investors. Crux’s world-class team brings together expertise from energy, tax, finance, government, and technology to power an abundant, resilient, and secure energy future. For more information, visit https://www.cruxclimate.com/.

Flair

Venture Round in 2024
Flair makes smart vents and wireless thermostats and advanced software for residential heating and cooling. The company builds smart hardware and software for HVAC controls focused on efficiency, comfort, electrification, and smart grid integration. The company's products are sold through multiple channels including direct to consumer, HVAC distribution, and utilities.

Acceleron Fusion

Series A in 2024
Acceleron Fusion specializes in clean energy solutions, harnessing fusion technology to power cities, charge electric vehicles, and fuel rockets. Its innovative platform employs muon-catalyzed fusion to generate abundant, clean energy, aiming to address the engineering challenges of integrating fusion power into the grid and serving various industries.

Pacific Fusion

Series A in 2024
Pacific Fusion, a privately-held company with 11-50 employees, specializes in developing renewable energy power generation, focusing on affordable fusion power. It aims to create sustainable energy solutions, combining innovation with practical design to meet the growing demand for clean energy sources. The company's core product is a magnetic fusion system designed to optimize for various target designs, enabling businesses to generate low-cost power and heat using deuterium-tritium fuel.

Storio

Seed Round in 2024
Storio Energy, based in France, specializes in developing and operating energy storage solutions, primarily batteries, for professional clients. The company caters to three key use cases: standalone batteries for businesses exposed to volatile energy prices, storage combined with solar panels for enhanced self-consumption, and hybrid solar plus storage projects for independent power producers (IPPs). Storio's unique approach involves real-time operation of these batteries through its proprietary software platform, utilizing their flexibility to provide balancing and ancillary services to the electrical grid. The company offers a comprehensive, turnkey solution, supporting clients from initial feasibility studies through to installation and long-term operation, spanning over 15 years. Additionally, Storio provides financing options, allowing clients to partially or fully fund their storage projects.

AirLoom Energy

Seed Round in 2024
AirLoom Energy develops wind energy technology that uses lightweight wings operating on a track to capture wind. The design aims to deliver the same amount of energy as conventional turbines at a fraction of the cost, enabling low-cost utility-scale wind energy. The system uses multiple small airframes on a slender oval track with downwind forces supported by a bridling system, and the configuration can be adjusted depending on the landscape, allowing clients to harvest wind energy in cost-effective and quicker ways.

Zap Energy

Series D in 2024
Zap Energy, Inc. is a Seattle-based company that specializes in the design and manufacture of sheared-flow stabilized Z-Pinch fusion reactors for power generation. Founded in 2017, the company focuses on developing compact and scalable fusion technology that offers low-carbon, cost-effective, and flexible energy solutions. Unlike conventional fusion methods, Zap Energy's approach utilizes electric current to create magnetic fields that confine and compress plasma, enhancing the stability and efficiency of the fusion process. This innovative technology aims to provide sustainable energy while requiring less capital investment compared to traditional fusion systems.

Carbyon

Series A in 2024
Carbyon is a Dutch company specializing in direct air capture (DAC) technologies. It filters CO2 from the atmosphere, purifies it, and supplies it to produce kerosene for aircraft, enabling the existing fossil industry to repurpose storage and transport facilities for renewable hydrocarbons.

Xcimer

Series A in 2024
Xcimer Energy is an innovative company focused on developing laser-driven fusion technology to deliver affordable, abundant, and carbon-free energy. Founded in 2021 and based in Redwood City, California, Xcimer integrates low-cost excimer laser technology with the HYLIFE reaction chamber concept to create a scalable Inertial Fusion Energy (IFE) system. This approach addresses significant challenges that have historically hindered the viability of fusion power, enabling the application of experimentally proven controlled fusion reactions for electrical power generation. By transforming the energy marketplace, Xcimer aims to provide a sustainable energy solution that can meet growing global demands.

Zanskar

Series B in 2024
Zanskar is a geothermal exploration and technology company focused on accelerating the discovery and development of geothermal energy resources. The company utilizes a predictive platform informed by extensive data, which includes subsurface characterization technology and advanced sensing techniques. By integrating artificial intelligence and big data, Zanskar enhances the exploration process and helps clients identify previously unknown geothermal resources, ultimately reducing the risks associated with such endeavors. Through its innovative approach, Zanskar aims to contribute to the advancement of geothermal energy as a sustainable resource.

Eli

Venture Round in 2024
Eli is a digital platform that simplifies access to incentives, rebates, and low-interest financing for contractors, installers, and retailers involved in consumer decarbonization projects. These projects encompass a range of technologies, including heat pumps, electric vehicle chargers, heat pump water heaters, solar energy systems, and battery storage solutions. Eli’s technology is built upon extensive user testing and real-world data, aiming to assist individuals facing significant barriers to access these programs. The platform effectively screens and qualifies applicants for various incentives by navigating complex eligibility rules, verifying income, and collecting necessary documentation, all while providing personalized information about incentive eligibility. This approach ensures that users receive comprehensive support without the need to visit multiple third-party websites, enabling businesses to maximize the incentives available to them.

Thea Energy

Series A in 2024
Thea Energy is developing scalable fusion energy technology using arrays of mass-manufacturable magnets and dynamic software controls. Its proprietary stellarator architecture aims to generate a limitless source of zero-emission power, contributing to a sustainable future.

Crux

Series A in 2024
Crux is the capital markets technology company changing the way clean energy and manufacturing projects are financed in the U.S. Crux’s platform, market intelligence, and expert team help developers and manufacturers raise capital through all stages of project development and operation. The company’s first offering is the leading platform for tax credit transfers. Since its launch in 2023, Crux has raised more than $27 million in funding from venture capital and strategic investors. Crux’s world-class team brings together expertise from energy, tax, finance, government, and technology to power an abundant, resilient, and secure energy future. For more information, visit https://www.cruxclimate.com/.

AirLoom Energy

Seed Round in 2023
AirLoom Energy develops wind energy technology that uses lightweight wings operating on a track to capture wind. The design aims to deliver the same amount of energy as conventional turbines at a fraction of the cost, enabling low-cost utility-scale wind energy. The system uses multiple small airframes on a slender oval track with downwind forces supported by a bridling system, and the configuration can be adjusted depending on the landscape, allowing clients to harvest wind energy in cost-effective and quicker ways.

Crux

Seed Round in 2023
Crux is the capital markets technology company changing the way clean energy and manufacturing projects are financed in the U.S. Crux’s platform, market intelligence, and expert team help developers and manufacturers raise capital through all stages of project development and operation. The company’s first offering is the leading platform for tax credit transfers. Since its launch in 2023, Crux has raised more than $27 million in funding from venture capital and strategic investors. Crux’s world-class team brings together expertise from energy, tax, finance, government, and technology to power an abundant, resilient, and secure energy future. For more information, visit https://www.cruxclimate.com/.

Charm Industrial

Series B in 2023
Charm Industrial develops carbon removal technology that converts agricultural residues into bio-oil via fast pyrolysis and injects the bio-oil into deep geological formations for permanent underground storage, enabling long-term carbon offsetting and contributing to climate change mitigation.

Avalanche Energy

Series A in 2023
Avalanche Energy develops compact fusion reactors for distributed energy applications. Its modular reactor design enables clean energy production with high energy density, facilitating decarbonization efforts.

Crux

Funding Round in 2023
Crux is the capital markets technology company changing the way clean energy and manufacturing projects are financed in the U.S. Crux’s platform, market intelligence, and expert team help developers and manufacturers raise capital through all stages of project development and operation. The company’s first offering is the leading platform for tax credit transfers. Since its launch in 2023, Crux has raised more than $27 million in funding from venture capital and strategic investors. Crux’s world-class team brings together expertise from energy, tax, finance, government, and technology to power an abundant, resilient, and secure energy future. For more information, visit https://www.cruxclimate.com/.

Eli

Pre Seed Round in 2023
Eli is a digital platform that simplifies access to incentives, rebates, and low-interest financing for contractors, installers, and retailers involved in consumer decarbonization projects. These projects encompass a range of technologies, including heat pumps, electric vehicle chargers, heat pump water heaters, solar energy systems, and battery storage solutions. Eli’s technology is built upon extensive user testing and real-world data, aiming to assist individuals facing significant barriers to access these programs. The platform effectively screens and qualifies applicants for various incentives by navigating complex eligibility rules, verifying income, and collecting necessary documentation, all while providing personalized information about incentive eligibility. This approach ensures that users receive comprehensive support without the need to visit multiple third-party websites, enabling businesses to maximize the incentives available to them.

Enode

Series A in 2022
Enode is a technology company focused on facilitating the transition to a sustainable energy system by connecting and optimizing various energy devices. Its platform utilizes application programming interfaces (APIs) to enable seamless integration of energy products, such as electric vehicles, home batteries, solar inverters, and thermostats, into applications. This approach allows businesses to quickly connect users’ energy devices with minimal coding, significantly reducing the time and complexity associated with developing energy management applications. By streamlining the integration process, Enode helps clients optimize energy consumption and participate in flexible markets, contributing to the development of a zero-carbon energy grid.

Electra

Venture Round in 2022
Electra is a company dedicated to revolutionizing iron and steel production by significantly reducing carbon dioxide emissions. It specializes in alternative steelmaking technology that employs innovative electrochemical and hydrometallurgical processes. By electrifying and decarbonizing the steelmaking process, Electra enables the production of low-carbon clean iron from various ores and renewable energy sources. This approach not only minimizes the environmental impact associated with traditional steel production but also helps companies lower energy intensity and costs, promoting sustainability within the industry.

Fuse Energy

Venture Round in 2022
Founded in 2014, Fuse Energy is an independent oil and gas exploration and production company based in Greenwood Village, Colorado. The company focuses on acquiring and exploiting assets across various hydrocarbon basins within the United States.

Zanskar

Series A in 2022
Zanskar is a geothermal exploration and technology company focused on accelerating the discovery and development of geothermal energy resources. The company utilizes a predictive platform informed by extensive data, which includes subsurface characterization technology and advanced sensing techniques. By integrating artificial intelligence and big data, Zanskar enhances the exploration process and helps clients identify previously unknown geothermal resources, ultimately reducing the risks associated with such endeavors. Through its innovative approach, Zanskar aims to contribute to the advancement of geothermal energy as a sustainable resource.

Lemon Energy

Series A in 2022
Lemon Energy is a Brazilian company based in São Paulo, founded in 2019, that specializes in renewable energy solutions. It operates solar plants that generate photovoltaic energy, enabling customers to save on electric bills while promoting sustainable energy practices. Through a fully digital platform, Lemon Energy facilitates a seamless user experience, connecting consumers with various clean energy sources, including solar, wind, biogas, and small hydroelectric plants. By creating a renewable energy marketplace, the company simplifies the process of choosing green energy options, allowing businesses and individuals to utilize environmentally friendly energy sources effectively.

Zap Energy

Series C in 2022
Zap Energy, Inc. is a Seattle-based company that specializes in the design and manufacture of sheared-flow stabilized Z-Pinch fusion reactors for power generation. Founded in 2017, the company focuses on developing compact and scalable fusion technology that offers low-carbon, cost-effective, and flexible energy solutions. Unlike conventional fusion methods, Zap Energy's approach utilizes electric current to create magnetic fields that confine and compress plasma, enhancing the stability and efficiency of the fusion process. This innovative technology aims to provide sustainable energy while requiring less capital investment compared to traditional fusion systems.

Flair

Series A in 2022
Flair makes smart vents and wireless thermostats and advanced software for residential heating and cooling. The company builds smart hardware and software for HVAC controls focused on efficiency, comfort, electrification, and smart grid integration. The company's products are sold through multiple channels including direct to consumer, HVAC distribution, and utilities.

Avalanche Energy

Seed Round in 2022
Avalanche Energy develops compact fusion reactors for distributed energy applications. Its modular reactor design enables clean energy production with high energy density, facilitating decarbonization efforts.

Verdox

Venture Round in 2022
Verdox is dedicated to reversing climate change through the development and deployment of advanced technology. The company’s proprietary electro-swing process, developed at MIT, enables carbon dioxide and other acid gases to be captured with up to 80% less energy and 70% less cost than conventional approaches.

Zap Energy

Series B in 2021
Zap Energy, Inc. is a Seattle-based company that specializes in the design and manufacture of sheared-flow stabilized Z-Pinch fusion reactors for power generation. Founded in 2017, the company focuses on developing compact and scalable fusion technology that offers low-carbon, cost-effective, and flexible energy solutions. Unlike conventional fusion methods, Zap Energy's approach utilizes electric current to create magnetic fields that confine and compress plasma, enhancing the stability and efficiency of the fusion process. This innovative technology aims to provide sustainable energy while requiring less capital investment compared to traditional fusion systems.

Flair

Funding Round in 2021
Flair makes smart vents and wireless thermostats and advanced software for residential heating and cooling. The company builds smart hardware and software for HVAC controls focused on efficiency, comfort, electrification, and smart grid integration. The company's products are sold through multiple channels including direct to consumer, HVAC distribution, and utilities.

Enode

Seed Round in 2021
Enode is a technology company focused on facilitating the transition to a sustainable energy system by connecting and optimizing various energy devices. Its platform utilizes application programming interfaces (APIs) to enable seamless integration of energy products, such as electric vehicles, home batteries, solar inverters, and thermostats, into applications. This approach allows businesses to quickly connect users’ energy devices with minimal coding, significantly reducing the time and complexity associated with developing energy management applications. By streamlining the integration process, Enode helps clients optimize energy consumption and participate in flexible markets, contributing to the development of a zero-carbon energy grid.

Zap Energy

Series A in 2020
Zap Energy, Inc. is a Seattle-based company that specializes in the design and manufacture of sheared-flow stabilized Z-Pinch fusion reactors for power generation. Founded in 2017, the company focuses on developing compact and scalable fusion technology that offers low-carbon, cost-effective, and flexible energy solutions. Unlike conventional fusion methods, Zap Energy's approach utilizes electric current to create magnetic fields that confine and compress plasma, enhancing the stability and efficiency of the fusion process. This innovative technology aims to provide sustainable energy while requiring less capital investment compared to traditional fusion systems.
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