Lowercarbon Capital

Lowercarbon Capital is a venture capital firm established in 2018 and headquartered in Jackson, Wyoming. The company focuses on funding research and investing in innovative technologies aimed at reducing carbon dioxide levels in the atmosphere. Lowercarbon Capital seeks to support entrepreneurs and scientists who are developing solutions to lower emissions, remove carbon, and actively cool the planet. The firm targets investments across various sectors, including commercial services, transportation, energy equipment, utilities, and computer hardware and software, with a specific emphasis on companies that contribute to carbon reduction and environmental sustainability.

Sidney Brown

Associate

Duncan Carlson

Principal

Christina Chang

Partner

Clay Dumas

Founding Partner and General Partner

Eric Helfgott

Principal

Caie Kelley

Principal

Lauren O'Connor

Operating Partner

Ryan Orbuch

Partner

Ashton Rosin

Operating Partner and Head of Capital Formation

Shawn Xu

Partner

Shuo Yang

Partner

Past deals in Energy

Electra

Series B in 2025
Electra is dedicated to reducing carbon dioxide emissions in the iron and steel production industry through innovative electrochemical and hydrometallurgical processes. The company has developed alternative steelmaking technology that aims to electrify and decarbonize the production process, allowing for the creation of low-carbon clean iron from various ores. By utilizing renewable energy sources, Electra enables steel producers to lower energy intensity and costs, contributing to a more sustainable approach to steelmaking.

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.

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 focuses on harnessing wind energy through innovative airframe technology that operates on a lightweight track. By employing a unique geometry, the company generates energy comparable to traditional wind turbines but at a significantly reduced cost. Its system consists of multiple small airframes that move along a slender oval track, utilizing downwind forces supported by a bridling system. This flexible configuration allows for adaptation to various landscapes and energy needs, enabling clients to efficiently and economically capture wind energy. Airloom Energy is committed to providing low-cost utility-scale wind energy solutions.

Zap Energy

Series D in 2024
Zap Energy, Inc., founded in 2017 and headquartered in Seattle, Washington, specializes in the design and manufacture of sheared-flow stabilized Z-Pinch fusion reactors for power generation. The company’s innovative technology utilizes electric currents to create magnetic fields that confine and compress plasma, enabling efficient energy production through nuclear fusion. This approach offers a low-carbon, cost-effective, and flexible power source while requiring less capital investment compared to traditional fusion methods. By focusing on compact and scalable fusion technology, Zap Energy aims to advance sustainable energy solutions and improve the economics of fusion energy.

Carbyon

Series A in 2024
Carbyon is a Netherlands-based company specializing in direct air capture (DAC) technologies that filter carbon dioxide (CO2) from ambient air. Its innovative "fast-swing" technology purifies CO2, making it suitable for various applications, including the production of kerosene for aircraft. By enabling the fossil fuel industry to repurpose existing storage and transportation infrastructure for renewable hydrocarbons, Carbyon supports the transition from fossil hydrocarbons to alternative energy carriers, such as batteries and hydrogen. This approach not only aids in reducing greenhouse gas emissions but also facilitates significant transformations in energy systems and transportation networks.

Xcimer

Series A in 2024
Xcimer Energy is a California-based company focused on developing laser-driven fusion technology to generate affordable, carbon-free energy. Founded in 2021 and headquartered in Redwood City, it aims to transform the energy sector by integrating low-cost excimer laser technology with the HYLIFE reaction chamber concept. This innovative approach is designed to create a scalable Inertial Fusion Energy system that addresses longstanding challenges in achieving viable fusion power. By utilizing the only experimentally proven controlled fusion reaction, Xcimer Energy seeks to enable efficient electrical power generation, contributing to a more sustainable energy future.

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 that leverages extensive data sets and advanced subsurface characterization technology. By integrating artificial intelligence and sophisticated sensing techniques, Zanskar enhances the exploration process, allowing clients to uncover previously unknown geothermal resources while minimizing associated risks. Through its innovative approach, Zanskar aims to contribute to the growth and sustainability of geothermal energy as a viable alternative energy source.

Thea Energy

Series A in 2024
Thea Energy is focused on developing a scalable fusion energy system designed to provide a limitless, zero-emission power source for a sustainable future. Founded in 2022 as a spin-out from the Princeton Plasma Physics Laboratory and Princeton University, Thea Energy aims to innovate the stellarator, a well-established magnetic fusion technology. The company is utilizing advancements in computation and control systems to create its first integrated fusion system, Eos, which is based on a planar coil stellarator architecture. This design simplifies the traditional complex three-dimensional magnet coils, enabling continuous fusion reactions and offering utility companies a reliable alternative to intermittent renewable energy sources such as solar and wind.

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 focuses on harnessing wind energy through innovative airframe technology that operates on a lightweight track. By employing a unique geometry, the company generates energy comparable to traditional wind turbines but at a significantly reduced cost. Its system consists of multiple small airframes that move along a slender oval track, utilizing downwind forces supported by a bridling system. This flexible configuration allows for adaptation to various landscapes and energy needs, enabling clients to efficiently and economically capture wind energy. Airloom Energy is committed to providing low-cost utility-scale wind energy solutions.

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 has developed an innovative approach to carbon sequestration by converting agricultural residues into bio-oil, which is then injected deep underground for permanent storage. This process not only captures carbon dioxide from the atmosphere but also allows for the production of green hydrogen through the reforming of pyrolysis bio-oil. By utilizing biomass, Charm Industrial aims to provide a reliable and cost-competitive source of energy and industrial chemicals while enabling industrial clients to achieve carbon neutrality. Their technology addresses significant environmental challenges, such as wildfires and soil erosion, by ensuring that captured CO₂ remains securely stored, contributing to a sustainable energy future.

Avalanche Energy

Series A in 2023
Avalanche Energy is a fusion energy startup focused on developing compact micro-fusion reactors for various applications, including distributed energy, mobility, and space propulsion. The company utilizes a unique modular reactor architecture that can be stacked to provide scalable and limitless power solutions. By harnessing a self-sustaining fusion chain reaction, Avalanche Energy aims to deliver carbon-free energy while ensuring safety and eliminating long-lived radioactive waste. The company emphasizes rapid design, build, test, and fix cycles to facilitate quick development and scalability, addressing the increasing global demand for clean energy solutions.

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/.

Enode

Series A in 2022
Enode is a company focused on advancing the transition to a sustainable energy system by connecting and optimizing energy devices. Through its digital platform, Enode's APIs allow businesses to seamlessly integrate users' energy hardware, such as electric vehicles, solar inverters, home batteries, and thermostats, into their applications. This streamlined approach significantly reduces the time and resources needed for integration and ongoing maintenance, making it easier for companies to develop energy management applications. By optimizing energy consumption and enabling participation in flexible energy markets, Enode supports clients in their efforts to contribute to a zero-carbon energy grid.

Electra

Venture Round in 2022
Electra is dedicated to reducing carbon dioxide emissions in the iron and steel production industry through innovative electrochemical and hydrometallurgical processes. The company has developed alternative steelmaking technology that aims to electrify and decarbonize the production process, allowing for the creation of low-carbon clean iron from various ores. By utilizing renewable energy sources, Electra enables steel producers to lower energy intensity and costs, contributing to a more sustainable approach to steelmaking.

Fuse Energy

Venture Round in 2022
Fuse Energy, LLC is an energy company engaged in the exploration and production of oil and gas, primarily focusing on acquiring and utilizing assets in various hydrocarbon basins across the United States. Founded in 2014 and headquartered in Greenwood Village, Colorado, the company also operates as an energy supplier in the UK, offering competitive electricity tariffs. Additionally, Fuse Energy is dedicated to promoting the global renewable energy transition by providing innovative energy services, including virtual solar panels and advanced energy-saving solutions. This dual focus on traditional energy production and renewable energy solutions positions Fuse Energy as a versatile player in the energy sector, addressing both current and future energy needs.

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 that leverages extensive data sets and advanced subsurface characterization technology. By integrating artificial intelligence and sophisticated sensing techniques, Zanskar enhances the exploration process, allowing clients to uncover previously unknown geothermal resources while minimizing associated risks. Through its innovative approach, Zanskar aims to contribute to the growth and sustainability of geothermal energy as a viable alternative energy source.

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., founded in 2017 and headquartered in Seattle, Washington, specializes in the design and manufacture of sheared-flow stabilized Z-Pinch fusion reactors for power generation. The company’s innovative technology utilizes electric currents to create magnetic fields that confine and compress plasma, enabling efficient energy production through nuclear fusion. This approach offers a low-carbon, cost-effective, and flexible power source while requiring less capital investment compared to traditional fusion methods. By focusing on compact and scalable fusion technology, Zap Energy aims to advance sustainable energy solutions and improve the economics of fusion energy.

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 is a fusion energy startup focused on developing compact micro-fusion reactors for various applications, including distributed energy, mobility, and space propulsion. The company utilizes a unique modular reactor architecture that can be stacked to provide scalable and limitless power solutions. By harnessing a self-sustaining fusion chain reaction, Avalanche Energy aims to deliver carbon-free energy while ensuring safety and eliminating long-lived radioactive waste. The company emphasizes rapid design, build, test, and fix cycles to facilitate quick development and scalability, addressing the increasing global demand for clean energy solutions.

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., founded in 2017 and headquartered in Seattle, Washington, specializes in the design and manufacture of sheared-flow stabilized Z-Pinch fusion reactors for power generation. The company’s innovative technology utilizes electric currents to create magnetic fields that confine and compress plasma, enabling efficient energy production through nuclear fusion. This approach offers a low-carbon, cost-effective, and flexible power source while requiring less capital investment compared to traditional fusion methods. By focusing on compact and scalable fusion technology, Zap Energy aims to advance sustainable energy solutions and improve the economics of fusion energy.

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 company focused on advancing the transition to a sustainable energy system by connecting and optimizing energy devices. Through its digital platform, Enode's APIs allow businesses to seamlessly integrate users' energy hardware, such as electric vehicles, solar inverters, home batteries, and thermostats, into their applications. This streamlined approach significantly reduces the time and resources needed for integration and ongoing maintenance, making it easier for companies to develop energy management applications. By optimizing energy consumption and enabling participation in flexible energy markets, Enode supports clients in their efforts to contribute to a zero-carbon energy grid.

Zap Energy

Series A in 2020
Zap Energy, Inc., founded in 2017 and headquartered in Seattle, Washington, specializes in the design and manufacture of sheared-flow stabilized Z-Pinch fusion reactors for power generation. The company’s innovative technology utilizes electric currents to create magnetic fields that confine and compress plasma, enabling efficient energy production through nuclear fusion. This approach offers a low-carbon, cost-effective, and flexible power source while requiring less capital investment compared to traditional fusion methods. By focusing on compact and scalable fusion technology, Zap Energy aims to advance sustainable energy solutions and improve the economics of fusion energy.
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