Prelude Ventures

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.

Quaise is an energy company based in Cambridge, Massachusetts, focused on developing innovative millimeter-wave drilling systems to access deep geothermal heat. Founded in 2018, the company aims to overcome geographic limitations that currently restrict the utilization of geothermal energy. By repurposing existing fossil-fuel industrial assets, Quaise's technology enables the drilling of geothermal wells directly at operational power plants, facilitating a smoother transition to cleaner energy sources. This approach allows mining companies to collectively generate terawatts of clean power, rivaling the output of fossil fuels while achieving zero carbon emissions.

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.

Element Energy is a startup focused on enhancing the performance, reliability, and cost-effectiveness of large battery packs utilized in various applications, including renewable energy storage and hybrid and electric vehicles. The company has developed a battery management system that aims to improve the safety, energy throughput, and lifespan of lithium-ion battery packs. This system facilitates the cost-effective repurposing of retired electric vehicle batteries into efficient grid-scale energy storage solutions. By doing so, Element Energy supports the integration of renewable energy sources and maximizes the total energy capacity of the battery packs.

Citrine Informatics, Inc. is a technology company that specializes in artificial intelligence and machine learning to enhance materials development. Founded in 2013 and headquartered in Redwood City, California, with an additional office in Pittsburgh, the company operates a platform that aggregates and analyzes extensive datasets related to materials, chemicals, and devices. This platform aims to streamline research and development, manufacturing, and supply chain processes for organizations involved in producing physical products. By employing data science and machine learning, Citrine Informatics accelerates the discovery of new materials and helps identify defects early in the research process, thereby improving product design and development efficiency across various sectors, including energy, aerospace, and electronics.

Fervo Energy, founded in 2017 and based in San Francisco, California, specializes in the development and commercialization of next-generation geothermal power technology. The company focuses on owning, developing, and operating geothermal assets to generate clean, carbon-free energy in new locations. By leveraging innovations in geoscience, Fervo Energy aims to accelerate the transition to a sustainable energy future, positioning itself as a key player in the evolution of the electric grid. Its proprietary technology serves as a dispatchable foundation for achieving a fully clean energy system, enabling clients to enhance productivity and scalability in energy production.

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.

Quaise is an energy company based in Cambridge, Massachusetts, focused on developing innovative millimeter-wave drilling systems to access deep geothermal heat. Founded in 2018, the company aims to overcome geographic limitations that currently restrict the utilization of geothermal energy. By repurposing existing fossil-fuel industrial assets, Quaise's technology enables the drilling of geothermal wells directly at operational power plants, facilitating a smoother transition to cleaner energy sources. This approach allows mining companies to collectively generate terawatts of clean power, rivaling the output of fossil fuels while achieving zero carbon emissions.

Quaise is an energy company based in Cambridge, Massachusetts, focused on developing innovative millimeter-wave drilling systems to access deep geothermal heat. Founded in 2018, the company aims to overcome geographic limitations that currently restrict the utilization of geothermal energy. By repurposing existing fossil-fuel industrial assets, Quaise's technology enables the drilling of geothermal wells directly at operational power plants, facilitating a smoother transition to cleaner energy sources. This approach allows mining companies to collectively generate terawatts of clean power, rivaling the output of fossil fuels while achieving zero carbon emissions.

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.

LevelTen Energy, Inc. is a Seattle-based company founded in 2016 that operates a renewable energy transaction marketplace. This platform serves to connect corporate and industrial power buyers with power purchase agreements (PPAs) from utility-scale wind, solar, and storage projects. By facilitating access to a wide range of renewable energy options, LevelTen Energy enables clients to secure fixed-price renewable energy solutions and benefit economically from large-scale projects. The company's technology-driven marketplace enhances the efficiency of transactions, allowing buyers, advisors, and sellers to achieve better deals in a streamlined manner. Through its services, LevelTen Energy plays a significant role in advancing the adoption of renewable energy in the corporate sector.

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, 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 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.

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.

Citrine Informatics, Inc. is a technology company that specializes in artificial intelligence and machine learning to enhance materials development. Founded in 2013 and headquartered in Redwood City, California, with an additional office in Pittsburgh, the company operates a platform that aggregates and analyzes extensive datasets related to materials, chemicals, and devices. This platform aims to streamline research and development, manufacturing, and supply chain processes for organizations involved in producing physical products. By employing data science and machine learning, Citrine Informatics accelerates the discovery of new materials and helps identify defects early in the research process, thereby improving product design and development efficiency across various sectors, including energy, aerospace, and electronics.

LevelTen Energy, Inc. is a Seattle-based company founded in 2016 that operates a renewable energy transaction marketplace. This platform serves to connect corporate and industrial power buyers with power purchase agreements (PPAs) from utility-scale wind, solar, and storage projects. By facilitating access to a wide range of renewable energy options, LevelTen Energy enables clients to secure fixed-price renewable energy solutions and benefit economically from large-scale projects. The company's technology-driven marketplace enhances the efficiency of transactions, allowing buyers, advisors, and sellers to achieve better deals in a streamlined manner. Through its services, LevelTen Energy plays a significant role in advancing the adoption of renewable energy in the corporate sector.

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.

LevelTen Energy, Inc. is a Seattle-based company founded in 2016 that operates a renewable energy transaction marketplace. This platform serves to connect corporate and industrial power buyers with power purchase agreements (PPAs) from utility-scale wind, solar, and storage projects. By facilitating access to a wide range of renewable energy options, LevelTen Energy enables clients to secure fixed-price renewable energy solutions and benefit economically from large-scale projects. The company's technology-driven marketplace enhances the efficiency of transactions, allowing buyers, advisors, and sellers to achieve better deals in a streamlined manner. Through its services, LevelTen Energy plays a significant role in advancing the adoption of renewable energy in the corporate sector.

Heliotrope develops next-generation electrochromic "smart" windows capable of independent control over light and heat transmission. The core technology was developed by Delia Milliron, Guillermo Garcia, and colleagues at Lawrence Berkeley National Laboratory. It was incorporated in 2012 and is based in Alameda, California.

Citrine Informatics, Inc. is a technology company that specializes in artificial intelligence and machine learning to enhance materials development. Founded in 2013 and headquartered in Redwood City, California, with an additional office in Pittsburgh, the company operates a platform that aggregates and analyzes extensive datasets related to materials, chemicals, and devices. This platform aims to streamline research and development, manufacturing, and supply chain processes for organizations involved in producing physical products. By employing data science and machine learning, Citrine Informatics accelerates the discovery of new materials and helps identify defects early in the research process, thereby improving product design and development efficiency across various sectors, including energy, aerospace, and electronics.

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.

EnergySavvy, Inc. is a cloud software company that specializes in developing utility cloud solutions aimed at enhancing customer intelligence and engagement for utility providers. Established in 2008 and based in Seattle, Washington, with additional offices in Boulder, Denver, and Cambridge, the company offers a cloud-based home energy platform that enables users to monitor energy consumption and reduce utility costs. Its key products include Program Optix and Online Audit software applications, along with program management services tailored for energy efficiency initiatives. EnergySavvy also provides valuable information about home energy rebates, tax credits, incentives, and financing options. Serving nearly 40 utility clients and state programs across the United States, the company leverages a combination of software expertise, user experience design, and analytics to foster customer transformation in the utility sector. EnergySavvy, formerly known as Evoworx Inc., became a subsidiary of Tendril Networks, Inc. in 2019.

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.

Renew Financial provides financing solutions that help efficiency and renewable energy contractors grow their businesses while promoting energy independence. Its aim is to develop advanced financing designed to transform America’s economy to clean energy. The company’s financing products include PACE financing model and the Warehouse for Energy Efficiency Loans, which opens the residential energy efficiency finance market to large institutional investors. Founded in 2008 by Cisco DeVries, Renew Financial has a partnership with SolarCity targeted at small- and medium-sized businesses utilizing PACE.

Heliotrope develops next-generation electrochromic "smart" windows capable of independent control over light and heat transmission. The core technology was developed by Delia Milliron, Guillermo Garcia, and colleagues at Lawrence Berkeley National Laboratory. It was incorporated in 2012 and is based in Alameda, California.

Citrine Informatics, Inc. is a technology company that specializes in artificial intelligence and machine learning to enhance materials development. Founded in 2013 and headquartered in Redwood City, California, with an additional office in Pittsburgh, the company operates a platform that aggregates and analyzes extensive datasets related to materials, chemicals, and devices. This platform aims to streamline research and development, manufacturing, and supply chain processes for organizations involved in producing physical products. By employing data science and machine learning, Citrine Informatics accelerates the discovery of new materials and helps identify defects early in the research process, thereby improving product design and development efficiency across various sectors, including energy, aerospace, and electronics.

EnergySavvy, Inc. is a cloud software company that specializes in developing utility cloud solutions aimed at enhancing customer intelligence and engagement for utility providers. Established in 2008 and based in Seattle, Washington, with additional offices in Boulder, Denver, and Cambridge, the company offers a cloud-based home energy platform that enables users to monitor energy consumption and reduce utility costs. Its key products include Program Optix and Online Audit software applications, along with program management services tailored for energy efficiency initiatives. EnergySavvy also provides valuable information about home energy rebates, tax credits, incentives, and financing options. Serving nearly 40 utility clients and state programs across the United States, the company leverages a combination of software expertise, user experience design, and analytics to foster customer transformation in the utility sector. EnergySavvy, formerly known as Evoworx Inc., became a subsidiary of Tendril Networks, Inc. in 2019.

Renew Financial provides financing solutions that help efficiency and renewable energy contractors grow their businesses while promoting energy independence. Its aim is to develop advanced financing designed to transform America’s economy to clean energy. The company’s financing products include PACE financing model and the Warehouse for Energy Efficiency Loans, which opens the residential energy efficiency finance market to large institutional investors. Founded in 2008 by Cisco DeVries, Renew Financial has a partnership with SolarCity targeted at small- and medium-sized businesses utilizing PACE.

Heliotrope develops next-generation electrochromic "smart" windows capable of independent control over light and heat transmission. The core technology was developed by Delia Milliron, Guillermo Garcia, and colleagues at Lawrence Berkeley National Laboratory. It was incorporated in 2012 and is based in Alameda, California.