Queens Carbon
Seed Round in 2025
Queens Carbon is focused on developing a hydrothermal processing technology aimed at significantly reducing energy consumption in industrial applications. The company's innovative system minimizes the energy required for calcination and material synthesis, which is crucial for carbon capture and the production of carbon-neutral cement. By enhancing energy efficiency, Queens Carbon enables industries to lower their greenhouse gas emissions, thereby contributing to sustainable development and addressing the challenges posed by climate change.
DG Matrix
Seed Round in 2025
DG Matrix is a company that specializes in innovative energy storage and solar solutions aimed at promoting the electrification of various sectors, including electric vehicles. Their offerings include single-unit L3 DC fast charging technology, designed for efficient and optimized charging solutions. DG Matrix focuses on integrating its technologies with microgrids and energy infrastructure to provide effective services for electric vehicle charging, fleet charging, and power electronics. By prioritizing reduced material usage and a smaller ecological footprint, the company aims to achieve significant emissions reductions on a large scale, making electrification more accessible and affordable for clients.
Advanced Ionics
Venture Round in 2025
Advanced Ionics specializes in developing innovative electrolyzer technology for generating green hydrogen. The company's primary goal is to lower the costs associated with green hydrogen production by leveraging existing industrial infrastructure and minimizing electricity consumption. This approach supports global decarbonization efforts by offering tailored solutions for various industries.
Electrified Thermal Solutions
Venture Round in 2024
Electrified Thermal Solutions, founded in 2021 and based in Medford, Massachusetts, develops innovative energy storage technology. The company converts intermittent renewable electricity into constant heat using low-cost conductive ceramic blocks, enabling industrial sectors to replace fossil fuels with zero-carbon heat.
ConnectDER
Series D in 2024
ConnectDER is a solar technology company based in Philadelphia, Pennsylvania, founded in 2011. It specializes in designing and manufacturing meter collars that facilitate the connection of distributed energy resources (DERs) such as solar photovoltaic systems, battery storage, and electric vehicle charging to residential homes and the grid. By transforming the electricity meter socket into an interconnection point, ConnectDER enhances the integration and management of DERs. The company also offers ConnectDER Cloud, a system that allows fleet operators to access metering data, manage operational parameters, and control firmware remotely. This technology improves the efficiency and resilience of home energy systems while benefiting users, the grid, and the environment.
Lithios
Seed Round in 2024
Lithios is a technology company that uses electrochemistry for advanced lithium extraction from complex mixtures and untapped brine resources, applying electrochemical methods to capture and release lithium and enable low-cost, selective extraction for industries pursuing a sustainable, electrified future.
Ayrton Energy
Seed Round in 2024
Founded in 2021, Ayrton Energy specializes in developing hydrogen storage technology. Its innovative solution involves storing hydrogen in liquid form, facilitating safe and efficient transportation through existing infrastructures. This technology aims to provide energy security by enabling the use of hydrogen as a fuel for power generation.
PeakSyncer
Seed Round in 2024
PeakSyncer, a subsidiary of Zhong Xi Group, LLC, specializes in an AI-powered cloud platform designed to optimize energy management for utility companies. The platform leverages artificial intelligence to automate and streamline demand response programs, reducing peak energy loads. It offers real-time reporting, seamless data tracking, and integration with existing infrastructure, ensuring smooth implementation. PeakSyncer also facilitates compliance with regulatory requirements and supports sustainable energy ecosystems by engaging customers in demand response initiatives. The platform is scalable, continuously learning from past syncs to improve accuracy and efficiency, and offers 24/7 monitoring and dedicated support.
Cala Systems
Seed Round in 2024
Altus Thermal, founded in 2019 and based in Boston, Massachusetts, focuses on transforming thermal energy solutions for residential settings. The company aims to enhance efficiency, comfort, and user experience while providing benefits to the electrical grid. Altus Thermal develops energy technology designed to electrify residential heating, cooling, and hot water systems. By maximizing performance and facilitating better integration with renewable energy sources and other distributed energy resources, the company enables homeowners to electrify their living spaces in an efficient and cost-effective manner.
Advanced Ionics
Series A in 2023
Advanced Ionics specializes in developing innovative electrolyzer technology for generating green hydrogen. The company's primary goal is to lower the costs associated with green hydrogen production by leveraging existing industrial infrastructure and minimizing electricity consumption. This approach supports global decarbonization efforts by offering tailored solutions for various industries.
OxCCU develops renewable energy technology to enable a circular economy for fuels, chemicals, and plastics. The technology combines carbon dioxide from the atmosphere with hydrogen from water and renewable electricity to produce fuels, chemicals, and biodegradable plastics and is positioned to deliver the lowest-cost Power to Liquids pathway.
ConnectDER
Series C in 2023
ConnectDER is a solar technology company based in Philadelphia, Pennsylvania, founded in 2011. It specializes in designing and manufacturing meter collars that facilitate the connection of distributed energy resources (DERs) such as solar photovoltaic systems, battery storage, and electric vehicle charging to residential homes and the grid. By transforming the electricity meter socket into an interconnection point, ConnectDER enhances the integration and management of DERs. The company also offers ConnectDER Cloud, a system that allows fleet operators to access metering data, manage operational parameters, and control firmware remotely. This technology improves the efficiency and resilience of home energy systems while benefiting users, the grid, and the environment.
Noon Energy
Venture Round in 2022
Noon Energy is a Palo Alto, California-based company founded in 2018 that focuses on developing innovative flow battery technology for economical long-duration energy storage. This technology is designed to convert intermittent renewable electricity, such as solar and wind energy, into on-demand power, allowing for a more reliable energy supply. Noon Energy's rechargeable batteries utilize low-cost storage media that decouples energy and power capacity, providing long-duration storage while eliminating the need for mining precious metals. By enabling customers to scale up the use of renewable electricity, Noon Energy aims to reduce reliance on fossil fuels, as well as decrease pollution and emissions associated with energy production.
Electrified Thermal Solutions
Venture Round in 2022
Electrified Thermal Solutions, founded in 2021 and based in Medford, Massachusetts, develops innovative energy storage technology. The company converts intermittent renewable electricity into constant heat using low-cost conductive ceramic blocks, enabling industrial sectors to replace fossil fuels with zero-carbon heat.
Itselectric
Pre Seed Round in 2022
Itselectric provides curbside electric vehicle charging solutions tailored for urban environments, connecting charging posts behind the meter to adjacent buildings. The system expands public charging access, helping overcome infrastructure and environmental justice barriers, encouraging EV adoption, and improving air quality and community health. Property owners can earn passive income by hosting the charging posts.
Advanced Ionics
Seed Round in 2022
Advanced Ionics specializes in developing innovative electrolyzer technology for generating green hydrogen. The company's primary goal is to lower the costs associated with green hydrogen production by leveraging existing industrial infrastructure and minimizing electricity consumption. This approach supports global decarbonization efforts by offering tailored solutions for various industries.
Nth Cycle
Series A in 2022
Nth Cycle is a company specializing in metal processing technology. It collaborates with battery recyclers and miners to recover critical minerals from electronic waste and low-grade mine tailings using its proprietary electro-extraction method, offering an alternative to traditional hydrometallurgy and pyrometallurgy processes.
60Hertz Inc. is a company that designs and develops mobile application software specifically for power plant operators, focusing on the management of energy assets and maintenance tasks. Established in 2016 and based in Anchorage, Alaska, the company's computerized maintenance management system (CMMS) supports operators of distributed energy resources, including microgrids and large-scale solar and battery energy storage systems. The software features custom preventative maintenance checklists, scheduling for corrective work, and integration with monitoring platforms, which allows for the creation of smart work orders and condition-based maintenance. Additionally, it enhances operational efficiency by validating task completion through photo uploads, streamlining work order placement, and providing visibility into operations. By enabling operators to make data-informed decisions, 60Hertz aims to reduce operating costs and enhance asset longevity while improving workforce retention and reducing training expenses.
Volexion
Seed Round in 2021
Founded in Chicago, Illinois in 2018, Volexion specializes in manufacturing lithium ion batteries. Its proprietary graphene coating technology enhances conventional lithium-ion batteries, offering clients improved battery life, power performance, and a wider temperature and voltage range.
Nth Cycle
Venture Round in 2021
Nth Cycle is a company specializing in metal processing technology. It collaborates with battery recyclers and miners to recover critical minerals from electronic waste and low-grade mine tailings using its proprietary electro-extraction method, offering an alternative to traditional hydrometallurgy and pyrometallurgy processes.
ConnectDER
Series B in 2020
ConnectDER is a solar technology company based in Philadelphia, Pennsylvania, founded in 2011. It specializes in designing and manufacturing meter collars that facilitate the connection of distributed energy resources (DERs) such as solar photovoltaic systems, battery storage, and electric vehicle charging to residential homes and the grid. By transforming the electricity meter socket into an interconnection point, ConnectDER enhances the integration and management of DERs. The company also offers ConnectDER Cloud, a system that allows fleet operators to access metering data, manage operational parameters, and control firmware remotely. This technology improves the efficiency and resilience of home energy systems while benefiting users, the grid, and the environment.
Rebound Technologies
Series A in 2020
Rebound Technologies manufactures innovative thermal energy storage systems for commercial freezer environments and off-grid cooling. Its flagship products include IcePoint, a low-temperature refrigeration solution for supermarkets, and SunChill, an off-grid refrigeration system designed to improve agricultural productivity by removing field heat from crops post-harvest. The company's solutions are used by retail stores and farmers in the United States.
ConnectDER
Series B in 2019
ConnectDER is a solar technology company based in Philadelphia, Pennsylvania, founded in 2011. It specializes in designing and manufacturing meter collars that facilitate the connection of distributed energy resources (DERs) such as solar photovoltaic systems, battery storage, and electric vehicle charging to residential homes and the grid. By transforming the electricity meter socket into an interconnection point, ConnectDER enhances the integration and management of DERs. The company also offers ConnectDER Cloud, a system that allows fleet operators to access metering data, manage operational parameters, and control firmware remotely. This technology improves the efficiency and resilience of home energy systems while benefiting users, the grid, and the environment.
Rebound Technologies
Series A in 2019
Rebound Technologies manufactures innovative thermal energy storage systems for commercial freezer environments and off-grid cooling. Its flagship products include IcePoint, a low-temperature refrigeration solution for supermarkets, and SunChill, an off-grid refrigeration system designed to improve agricultural productivity by removing field heat from crops post-harvest. The company's solutions are used by retail stores and farmers in the United States.
EnergySage
Series A in 2018
EnergySage, LLC is an online marketplace based in Boston, Massachusetts, that specializes in solar and clean energy technologies for homeowners, businesses, and non-profits. Founded in 2009, the company provides a platform that enables consumers to explore a variety of energy solutions, including rooftop solar, battery storage, community solar, heat pumps, electric vehicle charging, and more. EnergySage offers educational content, analytical tools, and standardized shopping experiences, allowing users to request and compare competitive quotes from pre-screened installers. This facilitates informed decision-making and streamlines the process of selecting and installing clean energy systems, making it a valuable resource for those seeking sustainable energy alternatives.
Pika Energy
Series A in 2016
Pika Energy, Inc. is a manufacturer based in Westbrook, Maine, specializing in the development and production of renewable energy technologies for the residential market. Founded in 2010 by engineers from MIT, the company offers a range of products, including small wind turbines, high-efficiency bidirectional inverters, charge controllers, and solar optimizers. Its patented REbus DC Nanogrid technology facilitates efficient power transmission and integration of various energy sources, allowing homes to collect, store, and utilize clean energy. Pika Energy's products are designed and manufactured in the United States, using domestic materials, and are marketed through a network of trained dealers and installers across North America. The company operates as a subsidiary of Generac Holdings Inc.
Quidnet Energy
Seed Round in 2015
Founded in 2013, Quidnet Energy develops grid-scale energy storage systems using a unique hydroelectric technology. The company stores excess renewable energy by pumping water under pressure into underground geological reservoirs and releases it to drive hydroelectric turbines when needed. This process enables seamless integration with existing electricity-generating facilities at a lower cost than lithium-ion batteries.
VCharge
Seed Round in 2011
VCharge, Inc. is a technology company that specializes in intelligent infrastructure for managing transactive electric loads, primarily across Maine, Massachusetts, Pennsylvania, and expanding into international markets such as Germany, Ireland, and the United Kingdom. Founded in 2009 and headquartered in Providence, Rhode Island, VCharge develops the VNet power management platform, which coordinates the activities of distributed transactive load assets. The company also provides SmartBricks and SmartHydro, controllers for electric thermal storage heating systems, and VConsole, a web-based interface for users and utilities. VCharge focuses on retrofitting existing electric thermal storage systems, which are more common in Europe, to enhance energy efficiency and reduce costs for homeowners. Through energy arbitrage and grid services, VCharge helps users save significantly on heating costs while contributing to the stability and efficiency of the electric grid, particularly as the energy landscape shifts towards greater reliance on renewable sources.
MyEnergy is a company dedicated to helping households across the United States reduce energy consumption and save on utility bills. It offers a free platform where users can access personalized energy-saving tips and incentives, compare their energy usage with others, and set goals to track their progress. The platform includes algorithms that collect and analyze utility energy data to provide tailored recommendations. Additionally, users can earn rewards for successfully lowering their energy bills. MyEnergy is compatible with hundreds of utilities nationwide and aims to serve over 90% of the U.S. population.
OutSmart Power Systems
Seed Round in 2009
OutSmart Power Systems, LLC is a Massachusetts-based company that specializes in lean energy management software and services designed for commercial and industrial (C&I) buildings, particularly grocery stores, convenience stores, and cold storage facilities. Established in 2008, the company offers innovative solutions such as EnergyMate, a miniature metering technology that monitors energy and power parameters, and the OutSmart Analytics Platform (OSAP), which stores and analyzes data to uncover energy-saving opportunities. OutSmart's approach focuses on providing detailed insights into energy consumption and equipment health, particularly for critical systems like refrigeration, HVAC, and lighting. The company enhances energy management by categorizing and prioritizing activities related to energy use while offering basic and advanced analytics, reporting programs, and total energy savings services. By leveraging specialized sensor technology and data extraction techniques, OutSmart delivers granular monitoring capabilities that improve operational efficiency and reduce energy costs, often achieving payback periods of less than a year for its clients.