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 Nuclear Energy

Renaissance Fusion

Series A in 2025
Renaissance Fusion is a company focused on developing high-temperature superconductors that facilitate advancements in fusion energy and medical imaging. By creating superconductors for stellarator plasma devices, Renaissance Fusion aims to make fusion electricity affordable and accessible, thereby integrating it into the energy grid. Additionally, their technology enhances the effectiveness of MRI machines, making them a routine and commonplace form of medical examination. Through these innovations, the company seeks to simplify the process of harnessing fusion energy and improve medical diagnostics.

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.

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.

Renaissance Fusion

Seed Round in 2023
Renaissance Fusion is a company focused on developing high-temperature superconductors that facilitate advancements in fusion energy and medical imaging. By creating superconductors for stellarator plasma devices, Renaissance Fusion aims to make fusion electricity affordable and accessible, thereby integrating it into the energy grid. Additionally, their technology enhances the effectiveness of MRI machines, making them a routine and commonplace form of medical examination. Through these innovations, the company seeks to simplify the process of harnessing fusion energy and improve medical diagnostics.

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.

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.

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.

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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