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.

Sidney Brown

Associate

Duncan Carlson

Associate

Christina Chang

Partner

Harsh Dubey

Advisor

Clay Dumas

General Partner

Kristin Ellis

Partner

Eric Helfgott

Associate

Caie Kelley

Principal

Clea Kolster

Partner

Lauren O'Connor

Operating Partner

Ryan Orbuch

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 Nuclear Energy

Renaissance Fusion

Series A in 2025
Renaissance Fusion develops magnetic confinement fusion technologies for affordable electricity generation and net-zero emission goals. It specializes in constructing highly efficient stellarators using High Temperature Superconducting magnets, aiming to enable businesses to contribute to a sustainable energy future.

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.

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.

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.

Renaissance Fusion

Seed Round in 2023
Renaissance Fusion develops magnetic confinement fusion technologies for affordable electricity generation and net-zero emission goals. It specializes in constructing highly efficient stellarators using High Temperature Superconducting magnets, aiming to enable businesses to contribute to a sustainable energy future.

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.

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.

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.

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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