Prelude Ventures

Prelude Ventures is a San Francisco-based venture capital firm established in 2013, dedicated to investing in early-stage startups that aim to address climate change. The firm focuses on sectors such as advanced energy, food and agriculture, transportation, logistics, advanced materials, manufacturing, and advanced computing. By supporting innovative businesses in these areas, Prelude Ventures seeks to foster the development of the next generation of companies that can significantly impact environmental sustainability and contribute to a more sustainable future.

Katie Clasen

Principal

Matt Eggers

Managing Director

Bryan Shill

Associate

Nathaniel Simons

Co-Founder

Tim Woodward

Managing Director

Past deals in Electricity

Form Energy

Series F in 2024
Form Energy, Inc. specializes in the development of long-duration energy storage systems aimed at enhancing the reliability of renewable energy sources such as wind and solar. Founded in 2017 and based in Somerville, Massachusetts, the company focuses on creating low-cost battery systems, including its innovative iron-air battery technology, which allows for energy storage over extended periods. This capability enables the dispatch of renewable energy throughout the year, effectively replacing traditional fossil fuel-based generation and contributing to the decarbonization of the electric grid. Additionally, Form Energy offers Formware, a capacity expansion software tool designed to optimize energy management. The company's technological advancements are rooted in research from MIT and are supported by various investors committed to sustainable energy solutions.

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.

Electric Hydrogen

Series C in 2023
Electric Hydrogen is a company focused on developing low-cost, high-efficiency, fossil-free hydrogen systems aimed at decarbonizing industrial sectors such as ammonia and steel production, which are significant contributors to global greenhouse gas emissions. By rethinking electrolysis, Electric Hydrogen seeks to make clean hydrogen competitive with traditional, fossil-fuel-based hydrogen in terms of cost and scalability. The company's advanced PEM technology utilizes low-cost renewable electricity to produce clean hydrogen gas, thereby helping industries reduce their reliance on fossil fuels and minimize pollution. With a leadership team experienced in transformative clean energy companies, Electric Hydrogen is positioned to address current challenges in efficiency and cost, contributing to the goal of a zero-emission industrial sector in the near future.

Terabase

Venture Round in 2023
Terabase Energy, Inc. is a company specializing in automation and digital solutions for utility-scale solar projects. Founded in 2019 and headquartered in Berkeley, California, with an additional office in Melbourne, Australia, Terabase offers a cloud-based artificial intelligence platform that facilitates collaboration on digital project models. The company’s proprietary software is utilized by over 400 entities, including engineering, procurement, and construction firms, developers, and independent power producers across 28 countries. By providing technical advisory and engineering services, Terabase aims to reduce costs and accelerate the deployment of large solar projects, thereby enhancing scalability and efficiency in the solar energy sector.

Form Energy

Series E in 2022
Form Energy, Inc. specializes in the development of long-duration energy storage systems aimed at enhancing the reliability of renewable energy sources such as wind and solar. Founded in 2017 and based in Somerville, Massachusetts, the company focuses on creating low-cost battery systems, including its innovative iron-air battery technology, which allows for energy storage over extended periods. This capability enables the dispatch of renewable energy throughout the year, effectively replacing traditional fossil fuel-based generation and contributing to the decarbonization of the electric grid. Additionally, Form Energy offers Formware, a capacity expansion software tool designed to optimize energy management. The company's technological advancements are rooted in research from MIT and are supported by various investors committed to sustainable energy solutions.

Terabase

Series B in 2022
Terabase Energy, Inc. is a company specializing in automation and digital solutions for utility-scale solar projects. Founded in 2019 and headquartered in Berkeley, California, with an additional office in Melbourne, Australia, Terabase offers a cloud-based artificial intelligence platform that facilitates collaboration on digital project models. The company’s proprietary software is utilized by over 400 entities, including engineering, procurement, and construction firms, developers, and independent power producers across 28 countries. By providing technical advisory and engineering services, Terabase aims to reduce costs and accelerate the deployment of large solar projects, thereby enhancing scalability and efficiency in the solar energy sector.

Electric Hydrogen

Series B in 2022
Electric Hydrogen is a company focused on developing low-cost, high-efficiency, fossil-free hydrogen systems aimed at decarbonizing industrial sectors such as ammonia and steel production, which are significant contributors to global greenhouse gas emissions. By rethinking electrolysis, Electric Hydrogen seeks to make clean hydrogen competitive with traditional, fossil-fuel-based hydrogen in terms of cost and scalability. The company's advanced PEM technology utilizes low-cost renewable electricity to produce clean hydrogen gas, thereby helping industries reduce their reliance on fossil fuels and minimize pollution. With a leadership team experienced in transformative clean energy companies, Electric Hydrogen is positioned to address current challenges in efficiency and cost, contributing to the goal of a zero-emission industrial sector in the near future.

Form Energy

Series D in 2021
Form Energy, Inc. specializes in the development of long-duration energy storage systems aimed at enhancing the reliability of renewable energy sources such as wind and solar. Founded in 2017 and based in Somerville, Massachusetts, the company focuses on creating low-cost battery systems, including its innovative iron-air battery technology, which allows for energy storage over extended periods. This capability enables the dispatch of renewable energy throughout the year, effectively replacing traditional fossil fuel-based generation and contributing to the decarbonization of the electric grid. Additionally, Form Energy offers Formware, a capacity expansion software tool designed to optimize energy management. The company's technological advancements are rooted in research from MIT and are supported by various investors committed to sustainable energy solutions.

Electric Hydrogen

Series A in 2021
Electric Hydrogen is a company focused on developing low-cost, high-efficiency, fossil-free hydrogen systems aimed at decarbonizing industrial sectors such as ammonia and steel production, which are significant contributors to global greenhouse gas emissions. By rethinking electrolysis, Electric Hydrogen seeks to make clean hydrogen competitive with traditional, fossil-fuel-based hydrogen in terms of cost and scalability. The company's advanced PEM technology utilizes low-cost renewable electricity to produce clean hydrogen gas, thereby helping industries reduce their reliance on fossil fuels and minimize pollution. With a leadership team experienced in transformative clean energy companies, Electric Hydrogen is positioned to address current challenges in efficiency and cost, contributing to the goal of a zero-emission industrial sector in the near future.

Voltus

Series C in 2021
Voltus, Inc. is a technology company based in San Francisco, California, founded in 2016, that develops energy solutions aimed at industrial, commercial, and institutional customers. The company offers various products, including Voltlet, which facilitates real-time data acquisition and control, and Voltus, an energy cloud software. Through its platform, Voltus connects distributed energy resources to electricity markets, enabling clients to maximize the value of their operational flexibility, such as flexible load and energy storage. By partnering with Voltus, customers can generate cash by reducing their energy demand during peak hours, leading to significant savings and a cleaner energy future. Voltus operates on a model that shares the financial benefits with clients, ensuring that as customers profit from energy management, Voltus also benefits.

Encycle

Venture Round in 2021
Encycle Corporation specializes in wireless electrical demand management and automated demand response solutions for commercial and industrial facilities. The company offers advanced demand management controllers that optimize the peak electrical demand of various building equipment, including electric vehicle chargers. Its products are applicable in a wide range of settings such as retail stores, offices, theaters, schools, and food processing plants. Encycle’s technology utilizes swarm-logic controllers that communicate with electrical loads to reduce demand effectively, enhancing energy efficiency. The company markets its solutions directly and through distributors in California and New York. Founded in 2005 and headquartered in Toronto, Canada, Encycle also has offices in San Marcos, California, and Taunton, United Kingdom. The company has established a strategic partnership with Ayla Networks to further enhance its offerings. Encycle was previously known as REGEN Energy Inc. before rebranding in November 2015.

Form Energy

Series C in 2020
Form Energy, Inc. specializes in the development of long-duration energy storage systems aimed at enhancing the reliability of renewable energy sources such as wind and solar. Founded in 2017 and based in Somerville, Massachusetts, the company focuses on creating low-cost battery systems, including its innovative iron-air battery technology, which allows for energy storage over extended periods. This capability enables the dispatch of renewable energy throughout the year, effectively replacing traditional fossil fuel-based generation and contributing to the decarbonization of the electric grid. Additionally, Form Energy offers Formware, a capacity expansion software tool designed to optimize energy management. The company's technological advancements are rooted in research from MIT and are supported by various investors committed to sustainable energy solutions.

Voltus

Series B in 2020
Voltus, Inc. is a technology company based in San Francisco, California, founded in 2016, that develops energy solutions aimed at industrial, commercial, and institutional customers. The company offers various products, including Voltlet, which facilitates real-time data acquisition and control, and Voltus, an energy cloud software. Through its platform, Voltus connects distributed energy resources to electricity markets, enabling clients to maximize the value of their operational flexibility, such as flexible load and energy storage. By partnering with Voltus, customers can generate cash by reducing their energy demand during peak hours, leading to significant savings and a cleaner energy future. Voltus operates on a model that shares the financial benefits with clients, ensuring that as customers profit from energy management, Voltus also benefits.

Form Energy

Series B in 2019
Form Energy, Inc. specializes in the development of long-duration energy storage systems aimed at enhancing the reliability of renewable energy sources such as wind and solar. Founded in 2017 and based in Somerville, Massachusetts, the company focuses on creating low-cost battery systems, including its innovative iron-air battery technology, which allows for energy storage over extended periods. This capability enables the dispatch of renewable energy throughout the year, effectively replacing traditional fossil fuel-based generation and contributing to the decarbonization of the electric grid. Additionally, Form Energy offers Formware, a capacity expansion software tool designed to optimize energy management. The company's technological advancements are rooted in research from MIT and are supported by various investors committed to sustainable energy solutions.

Voltus

Series A in 2017
Voltus, Inc. is a technology company based in San Francisco, California, founded in 2016, that develops energy solutions aimed at industrial, commercial, and institutional customers. The company offers various products, including Voltlet, which facilitates real-time data acquisition and control, and Voltus, an energy cloud software. Through its platform, Voltus connects distributed energy resources to electricity markets, enabling clients to maximize the value of their operational flexibility, such as flexible load and energy storage. By partnering with Voltus, customers can generate cash by reducing their energy demand during peak hours, leading to significant savings and a cleaner energy future. Voltus operates on a model that shares the financial benefits with clients, ensuring that as customers profit from energy management, Voltus also benefits.

Encycle

Venture Round in 2016
Encycle Corporation specializes in wireless electrical demand management and automated demand response solutions for commercial and industrial facilities. The company offers advanced demand management controllers that optimize the peak electrical demand of various building equipment, including electric vehicle chargers. Its products are applicable in a wide range of settings such as retail stores, offices, theaters, schools, and food processing plants. Encycle’s technology utilizes swarm-logic controllers that communicate with electrical loads to reduce demand effectively, enhancing energy efficiency. The company markets its solutions directly and through distributors in California and New York. Founded in 2005 and headquartered in Toronto, Canada, Encycle also has offices in San Marcos, California, and Taunton, United Kingdom. The company has established a strategic partnership with Ayla Networks to further enhance its offerings. Encycle was previously known as REGEN Energy Inc. before rebranding in November 2015.

Spark Thermionics

Seed Round in 2016
Spark Thermionics offers an energy-generation device that displaces conventional power production methods. The device utilizes heat-to-electricity converters that are based on thermionic energy conversion technology, can produce power from any fuel source at high efficiency, in a quiet package, and can scale from watts to megawatts, enabling people around the world to have cleaner, cheaper, and more secure electricity.

Aquion Energy

Series E in 2014
Aquion Energy is a manufacturer of innovative energy storage solutions, specializing in sodium ion batteries designed for long-duration stationary energy storage. The company's proprietary Aqueous Hybrid Ion (AHI™) battery technology, developed from research by Carnegie Mellon University Professor Jay Whitacre, addresses the limitations of conventional energy storage systems. Aquion's batteries are safe, reliable, and environmentally friendly, utilizing non-toxic components such as saltwater, and they are free from heavy metals and toxic chemicals. These features make the AHI systems non-flammable and non-explosive, positioning them as a sustainable alternative for clients seeking to decrease reliance on fossil fuels. By optimizing existing grid-tied generation assets, Aquion Energy enhances the flexibility and efficiency of the electrical grid, facilitating the broader adoption of renewable energy technologies.
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