Prelude Ventures

Branch Energy is a company focused on providing renewable energy solutions, primarily through the development of local wind and solar projects. By leveraging data analytics and smart home technology, Branch Energy aims to enhance energy efficiency and assist consumers in reducing their power consumption. The company's platform is designed to facilitate a transition to clean energy, allowing individuals to save on energy costs while simultaneously lowering their carbon footprint. Through its innovative approach, Branch Energy contributes to the broader goal of promoting sustainable energy practices and advancing a cleaner energy future.

LevelTen Energy is a Seattle-based company that operates a renewable energy transaction marketplace platform. Founded in 2016, it facilitates connections between corporate and industrial power buyers and utility-scale wind, solar, and storage projects. The platform enables these buyers to access power purchase agreements (PPAs), providing financial security through fixed-price renewables and the economic advantages of large-scale projects. LevelTen Energy equips renewable energy buyers, advisors, and sellers with tools and services to expedite better deals.

Xcimer Energy is an innovative company focused on developing laser-driven fusion technology to deliver affordable, abundant, and carbon-free energy. Founded in 2021 and based in Redwood City, California, Xcimer integrates low-cost excimer laser technology with the HYLIFE reaction chamber concept to create a scalable Inertial Fusion Energy (IFE) system. This approach addresses significant challenges that have historically hindered the viability of fusion power, enabling the application of experimentally proven controlled fusion reactions for electrical power generation. By transforming the energy marketplace, Xcimer aims to provide a sustainable energy solution that can meet growing global demands.

Thea Energy is focused on developing an economical and scalable fusion energy system that aims to provide a limitless source of zero-emission power. Founded in 2022 as a spin-out from the Princeton Plasma Physics Laboratory and Princeton University, Thea Energy is reinventing the stellarator, a mature form of magnetic fusion technology. The company is leveraging recent advancements in computation and controls to design its first integrated fusion system, known as Eos, which is based on a planar coil stellarator architecture. This innovative approach utilizes mass-manufacturable magnets and dynamic software controls, allowing for continuous fusion reactions. By doing so, Thea Energy seeks to help utility companies reduce their reliance on intermittent renewable energy sources and contribute to a sustainable future through abundant, clean energy.

Quaise is an energy company based in Cambridge, Massachusetts, focused on developing innovative millimeter-wave drilling systems to access deep geothermal energy resources worldwide. Founded in 2018, Quaise aims to overcome the geographic limitations that currently restrict geothermal energy utilization. The company's technology repurposes existing fossil-fuel industrial assets by drilling onsite at operational power plants, leveraging existing infrastructure and workforce to facilitate a smoother transition to clean energy. By enabling mining companies to harness this geothermal potential, Quaise aspires to generate terawatts of clean power that can compete with fossil fuels while producing zero carbon emissions.

Element Energy is a startup focused on enhancing the performance, longevity, reliability, and cost-effectiveness of large battery packs utilized across various applications, including stationary and renewable energy storage, as well as hybrid and electric vehicles. The company has developed a battery management system that improves the safety, energy throughput, and lifecycle of lithium-ion battery packs. This system enables the cost-effective repurposing of retired electric vehicle batteries into efficient grid-scale energy storage solutions. By facilitating this process, Element Energy supports the integration of renewable energy sources and maximizes the total energy capacity of battery packs, contributing to advancements in energy storage technology.

Electric Hydrogen is a company focused on deep decarbonization by developing low-cost, high-efficiency systems for producing fossil-free hydrogen. The company targets industrial sectors such as ammonia and steel production, which contribute significantly to global greenhouse gas emissions. By rethinking electrolysis technology from scratch, Electric Hydrogen aims to make clean hydrogen competitive with traditional methods in terms of cost and scale. Their advanced PEM (Proton Exchange Membrane) technology uses renewable electricity to generate clean hydrogen gas, reducing industrial pollution and dependence on fossil fuels. The company's leadership team brings extensive experience from pioneering clean energy companies like Tesla and First Solar, positioning Electric Hydrogen as a strong contender in the quest for zero-emission industrial processes.

Terabase Energy, Inc. is a technology company focused on enhancing the efficiency and scalability of utility-scale solar projects through automation and digital solutions. 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. Its proprietary software is utilized by over 400 firms, including engineering, procurement, and construction companies, developers, and independent power producers across 28 countries. By providing innovative tools and services, Terabase aims to reduce costs and accelerate the deployment of large-scale solar energy projects, thereby supporting the growth of renewable energy infrastructure worldwide.

Ebb Carbon is a developer of innovative carbon removal technology that focuses on reducing atmospheric carbon dioxide through a reverse electrochemical ocean deacidification process. The company utilizes low-carbon electricity to electrochemically pump acid from the ocean, enhancing the ocean's natural capacity to store carbon dioxide while simultaneously reducing ocean acidity. This method offers a promising solution for safe, scalable, and cost-effective carbon removal, positioning Ebb Carbon as a leader in addressing climate change challenges.

Element Energy is a startup focused on enhancing the performance, longevity, reliability, and cost-effectiveness of large battery packs utilized across various applications, including stationary and renewable energy storage, as well as hybrid and electric vehicles. The company has developed a battery management system that improves the safety, energy throughput, and lifecycle of lithium-ion battery packs. This system enables the cost-effective repurposing of retired electric vehicle batteries into efficient grid-scale energy storage solutions. By facilitating this process, Element Energy supports the integration of renewable energy sources and maximizes the total energy capacity of battery packs, contributing to advancements in energy storage technology.

Citrine Informatics, Inc. is a software company based in Redwood City, California, with an additional office in Pittsburgh, Pennsylvania, founded in 2013. It specializes in materials informatics by developing an artificial intelligence platform that aggregates extensive data on materials, chemicals, and devices. This platform leverages machine learning and data science to enhance research and development, manufacturing, and supply chain operations for organizations involved in producing physical products. By streamlining the materials development process, Citrine Informatics aims to facilitate the discovery of new materials and reduce defects early in the research phase, thus improving product growth and design. The company's focus spans various sectors, including energy, aerospace, and electronics.

Fervo Energy, established in 2017 and headquartered in San Francisco, specializes in developing and operating geothermal assets using proprietary technology. The company aims to generate clean, dispatchable power from new locations, contributing to a 100% clean energy future. Fervo's innovative approach to geoscience accelerates the development of geothermal projects, providing carbon-free energy solutions for clients seeking scalable, productive power sources.

Terabase Energy, Inc. is a technology company focused on enhancing the efficiency and scalability of utility-scale solar projects through automation and digital solutions. 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. Its proprietary software is utilized by over 400 firms, including engineering, procurement, and construction companies, developers, and independent power producers across 28 countries. By providing innovative tools and services, Terabase aims to reduce costs and accelerate the deployment of large-scale solar energy projects, thereby supporting the growth of renewable energy infrastructure worldwide.

Electric Hydrogen is a company focused on deep decarbonization by developing low-cost, high-efficiency systems for producing fossil-free hydrogen. The company targets industrial sectors such as ammonia and steel production, which contribute significantly to global greenhouse gas emissions. By rethinking electrolysis technology from scratch, Electric Hydrogen aims to make clean hydrogen competitive with traditional methods in terms of cost and scale. Their advanced PEM (Proton Exchange Membrane) technology uses renewable electricity to generate clean hydrogen gas, reducing industrial pollution and dependence on fossil fuels. The company's leadership team brings extensive experience from pioneering clean energy companies like Tesla and First Solar, positioning Electric Hydrogen as a strong contender in the quest for zero-emission industrial processes.

Quaise is an energy company based in Cambridge, Massachusetts, focused on developing innovative millimeter-wave drilling systems to access deep geothermal energy resources worldwide. Founded in 2018, Quaise aims to overcome the geographic limitations that currently restrict geothermal energy utilization. The company's technology repurposes existing fossil-fuel industrial assets by drilling onsite at operational power plants, leveraging existing infrastructure and workforce to facilitate a smoother transition to clean energy. By enabling mining companies to harness this geothermal potential, Quaise aspires to generate terawatts of clean power that can compete with fossil fuels while producing zero carbon emissions.

Sense Labs, Inc. is a technology company based in Cambridge, Massachusetts, specializing in home energy monitoring solutions. Established in 2013, the company develops and manufactures electronic devices that analyze electricity usage in households. Its flagship product, Sense, utilizes current sensors installed on main breakers to capture the electronic signatures of various appliances. This system employs advanced algorithms to identify and differentiate individual devices, providing users with insights into their energy consumption. Sense also offers a range of related products, including Sense Solar, add-on sensors, and various replacement components. The data collected by these devices is transmitted to users via a dedicated mobile application, enhancing the home automation experience.

Quaise is an energy company based in Cambridge, Massachusetts, focused on developing innovative millimeter-wave drilling systems to access deep geothermal energy resources worldwide. Founded in 2018, Quaise aims to overcome the geographic limitations that currently restrict geothermal energy utilization. The company's technology repurposes existing fossil-fuel industrial assets by drilling onsite at operational power plants, leveraging existing infrastructure and workforce to facilitate a smoother transition to clean energy. By enabling mining companies to harness this geothermal potential, Quaise aspires to generate terawatts of clean power that can compete with fossil fuels while producing 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 is a Seattle-based company that operates a renewable energy transaction marketplace platform. Founded in 2016, it facilitates connections between corporate and industrial power buyers and utility-scale wind, solar, and storage projects. The platform enables these buyers to access power purchase agreements (PPAs), providing financial security through fixed-price renewables and the economic advantages of large-scale projects. LevelTen Energy equips renewable energy buyers, advisors, and sellers with tools and services to expedite better deals.

Electric Hydrogen is a company focused on deep decarbonization by developing low-cost, high-efficiency systems for producing fossil-free hydrogen. The company targets industrial sectors such as ammonia and steel production, which contribute significantly to global greenhouse gas emissions. By rethinking electrolysis technology from scratch, Electric Hydrogen aims to make clean hydrogen competitive with traditional methods in terms of cost and scale. Their advanced PEM (Proton Exchange Membrane) technology uses renewable electricity to generate clean hydrogen gas, reducing industrial pollution and dependence on fossil fuels. The company's leadership team brings extensive experience from pioneering clean energy companies like Tesla and First Solar, positioning Electric Hydrogen as a strong contender in the quest for zero-emission industrial processes.

Voltus, Inc. is a technology company based in San Francisco, California, that develops innovative energy products for industrial, commercial, and institutional customers. Founded in 2016, Voltus provides solutions that leverage distributed energy resources to enhance energy management and maximize operational flexibility in energy markets. Its offerings include Voltlet, which facilitates second-level data acquisition and control, Voltus energy cloud software, and Voltapp, an application designed for real-time energy visibility and control. By enabling clients to optimize their energy use, Voltus helps them generate cash flow and savings while contributing to a cleaner and more reliable energy future. The company operates on a model where it shares the financial benefits with its customers, ensuring that they profit from their participation in energy markets.

Encycle Corporation specializes in wireless electrical demand management solutions for commercial and industrial facilities. Based in Toronto with offices in California and the UK, the company offers automated demand response controllers that manage peak electrical demand across various building equipment types. Their products are installed directly or via distributors in California and New York, serving clients such as retail stores, office buildings, distribution centers, and food processing plants. Encycle's strategic partnership with Ayla Networks enhances its product offerings. Founded in 2005, the company changed its name from REGEN Energy Inc. to Encycle Corporation in 2015.

Voltus, Inc. is a technology company based in San Francisco, California, that develops innovative energy products for industrial, commercial, and institutional customers. Founded in 2016, Voltus provides solutions that leverage distributed energy resources to enhance energy management and maximize operational flexibility in energy markets. Its offerings include Voltlet, which facilitates second-level data acquisition and control, Voltus energy cloud software, and Voltapp, an application designed for real-time energy visibility and control. By enabling clients to optimize their energy use, Voltus helps them generate cash flow and savings while contributing to a cleaner and more reliable energy future. The company operates on a model where it shares the financial benefits with its customers, ensuring that they profit from their participation in energy markets.

Citrine Informatics, Inc. is a software company based in Redwood City, California, with an additional office in Pittsburgh, Pennsylvania, founded in 2013. It specializes in materials informatics by developing an artificial intelligence platform that aggregates extensive data on materials, chemicals, and devices. This platform leverages machine learning and data science to enhance research and development, manufacturing, and supply chain operations for organizations involved in producing physical products. By streamlining the materials development process, Citrine Informatics aims to facilitate the discovery of new materials and reduce defects early in the research phase, thus improving product growth and design. The company's focus spans various sectors, including energy, aerospace, and electronics.

Sense Labs, Inc. is a technology company based in Cambridge, Massachusetts, specializing in home energy monitoring solutions. Established in 2013, the company develops and manufactures electronic devices that analyze electricity usage in households. Its flagship product, Sense, utilizes current sensors installed on main breakers to capture the electronic signatures of various appliances. This system employs advanced algorithms to identify and differentiate individual devices, providing users with insights into their energy consumption. Sense also offers a range of related products, including Sense Solar, add-on sensors, and various replacement components. The data collected by these devices is transmitted to users via a dedicated mobile application, enhancing the home automation experience.

LevelTen Energy is a Seattle-based company that operates a renewable energy transaction marketplace platform. Founded in 2016, it facilitates connections between corporate and industrial power buyers and utility-scale wind, solar, and storage projects. The platform enables these buyers to access power purchase agreements (PPAs), providing financial security through fixed-price renewables and the economic advantages of large-scale projects. LevelTen Energy equips renewable energy buyers, advisors, and sellers with tools and services to expedite better deals.

Sense Labs, Inc. is a technology company based in Cambridge, Massachusetts, specializing in home energy monitoring solutions. Established in 2013, the company develops and manufactures electronic devices that analyze electricity usage in households. Its flagship product, Sense, utilizes current sensors installed on main breakers to capture the electronic signatures of various appliances. This system employs advanced algorithms to identify and differentiate individual devices, providing users with insights into their energy consumption. Sense also offers a range of related products, including Sense Solar, add-on sensors, and various replacement components. The data collected by these devices is transmitted to users via a dedicated mobile application, enhancing the home automation experience.

Voltus, Inc. is a technology company based in San Francisco, California, that develops innovative energy products for industrial, commercial, and institutional customers. Founded in 2016, Voltus provides solutions that leverage distributed energy resources to enhance energy management and maximize operational flexibility in energy markets. Its offerings include Voltlet, which facilitates second-level data acquisition and control, Voltus energy cloud software, and Voltapp, an application designed for real-time energy visibility and control. By enabling clients to optimize their energy use, Voltus helps them generate cash flow and savings while contributing to a cleaner and more reliable energy future. The company operates on a model where it shares the financial benefits with its customers, ensuring that they profit from their participation in energy markets.

LevelTen Energy is a Seattle-based company that operates a renewable energy transaction marketplace platform. Founded in 2016, it facilitates connections between corporate and industrial power buyers and utility-scale wind, solar, and storage projects. The platform enables these buyers to access power purchase agreements (PPAs), providing financial security through fixed-price renewables and the economic advantages of large-scale projects. LevelTen Energy equips renewable energy buyers, advisors, and sellers with tools and services to expedite better deals.

Citrine Informatics, Inc. is a software company based in Redwood City, California, with an additional office in Pittsburgh, Pennsylvania, founded in 2013. It specializes in materials informatics by developing an artificial intelligence platform that aggregates extensive data on materials, chemicals, and devices. This platform leverages machine learning and data science to enhance research and development, manufacturing, and supply chain operations for organizations involved in producing physical products. By streamlining the materials development process, Citrine Informatics aims to facilitate the discovery of new materials and reduce defects early in the research phase, thus improving product growth and design. The company's focus spans various sectors, including energy, aerospace, and electronics.

Sense Labs, Inc. is a technology company based in Cambridge, Massachusetts, specializing in home energy monitoring solutions. Established in 2013, the company develops and manufactures electronic devices that analyze electricity usage in households. Its flagship product, Sense, utilizes current sensors installed on main breakers to capture the electronic signatures of various appliances. This system employs advanced algorithms to identify and differentiate individual devices, providing users with insights into their energy consumption. Sense also offers a range of related products, including Sense Solar, add-on sensors, and various replacement components. The data collected by these devices is transmitted to users via a dedicated mobile application, enhancing the home automation experience.

Encycle Corporation specializes in wireless electrical demand management solutions for commercial and industrial facilities. Based in Toronto with offices in California and the UK, the company offers automated demand response controllers that manage peak electrical demand across various building equipment types. Their products are installed directly or via distributors in California and New York, serving clients such as retail stores, office buildings, distribution centers, and food processing plants. Encycle's strategic partnership with Ayla Networks enhances its product offerings. Founded in 2005, the company changed its name from REGEN Energy Inc. to Encycle Corporation in 2015.

EnergySavvy, Inc. is a cloud software company that specializes in providing utility solutions aimed at enhancing customer intelligence, engagement, and action. Founded in 2008 and based in Seattle, Washington, with additional offices in Boulder, Denver, and Cambridge, EnergySavvy offers a cloud-based home energy platform and various software products designed to help consumers understand their energy consumption and reduce utility costs. The company's key offerings include Program Optix and Online Audit, alongside program management services tailored for utilities implementing energy efficiency initiatives. EnergySavvy also provides valuable information on home energy rebates, tax credits, incentives, and financing options. With nearly 40 utility clients and state programs utilizing its services, EnergySavvy focuses on transforming the customer experience and improving operational efficiency in the utilities sector, leveraging expertise in software, user experience, and analytics.

Spark Thermionics is a developer of innovative energy-generation devices aimed at transforming conventional power production methods. The company's technology leverages heat-to-electricity converters based on thermionic energy conversion, allowing for efficient power generation from various fuel sources. This capability ensures that their devices operate quietly and can be scaled to produce electricity ranging from watts to megawatts. By focusing on efficiency and versatility, Spark Thermionics aims to provide cleaner, more affordable, and secure electricity solutions for users worldwide.

Renew Financial specializes in providing innovative financing solutions that support efficiency and renewable energy initiatives. Founded in 2008 by Cisco DeVries, the company focuses on developing financing models that promote energy independence and facilitate the transition to a clean energy economy. Its key offerings include the PACE financing model and the Warehouse for Energy Efficiency Loans, which enable access to capital for residential energy efficiency projects. These financing options are designed to assist homeowners, contractors, and local governments in funding energy efficiency, renewable energy, and water efficiency improvements, with repayments often structured through property taxes. By connecting these stakeholders, Renew Financial aims to reduce energy consumption and contribute to job creation in local communities.

Citrine Informatics, Inc. is a software company based in Redwood City, California, with an additional office in Pittsburgh, Pennsylvania, founded in 2013. It specializes in materials informatics by developing an artificial intelligence platform that aggregates extensive data on materials, chemicals, and devices. This platform leverages machine learning and data science to enhance research and development, manufacturing, and supply chain operations for organizations involved in producing physical products. By streamlining the materials development process, Citrine Informatics aims to facilitate the discovery of new materials and reduce defects early in the research phase, thus improving product growth and design. The company's focus spans various sectors, including energy, aerospace, and electronics.

EnergySavvy, Inc. is a cloud software company that specializes in providing utility solutions aimed at enhancing customer intelligence, engagement, and action. Founded in 2008 and based in Seattle, Washington, with additional offices in Boulder, Denver, and Cambridge, EnergySavvy offers a cloud-based home energy platform and various software products designed to help consumers understand their energy consumption and reduce utility costs. The company's key offerings include Program Optix and Online Audit, alongside program management services tailored for utilities implementing energy efficiency initiatives. EnergySavvy also provides valuable information on home energy rebates, tax credits, incentives, and financing options. With nearly 40 utility clients and state programs utilizing its services, EnergySavvy focuses on transforming the customer experience and improving operational efficiency in the utilities sector, leveraging expertise in software, user experience, and analytics.

Renew Financial specializes in providing innovative financing solutions that support efficiency and renewable energy initiatives. Founded in 2008 by Cisco DeVries, the company focuses on developing financing models that promote energy independence and facilitate the transition to a clean energy economy. Its key offerings include the PACE financing model and the Warehouse for Energy Efficiency Loans, which enable access to capital for residential energy efficiency projects. These financing options are designed to assist homeowners, contractors, and local governments in funding energy efficiency, renewable energy, and water efficiency improvements, with repayments often structured through property taxes. By connecting these stakeholders, Renew Financial aims to reduce energy consumption and contribute to job creation in local communities.

Sense Labs, Inc. is a technology company based in Cambridge, Massachusetts, specializing in home energy monitoring solutions. Established in 2013, the company develops and manufactures electronic devices that analyze electricity usage in households. Its flagship product, Sense, utilizes current sensors installed on main breakers to capture the electronic signatures of various appliances. This system employs advanced algorithms to identify and differentiate individual devices, providing users with insights into their energy consumption. Sense also offers a range of related products, including Sense Solar, add-on sensors, and various replacement components. The data collected by these devices is transmitted to users via a dedicated mobile application, enhancing the home automation experience.