U.S. Department of Energy

The U.S. Department of Energy is a government agency established in 1977, located in Washington, D.C. Its primary mission is to ensure the security and prosperity of the nation by tackling energy, environmental, and nuclear challenges. The Department focuses on promoting transformative scientific and technological solutions to address these issues, thereby supporting the country's energy needs and environmental sustainability.

Maria Robinson

Director of DOE's Grid Deployment Office

Jigar Shah

Director

Past deals in CleanTech

Carbon America

Grant in 2023
Carbon America transforms the carbon capture and sequestration (CCS) industry by lowering costs and rapidly increasing deployment. Carbon America is a carbon capture and sequestration developer. It is vertically integrated, nimble, and built to scale, with a multi-strategy approach to capture and sequester carbon dioxide faster, cheaper, and smarter than the competition. To achieve this, Carbon America has built a team combining world-class engineers, developers, and financiers into a vertically integrated CCS company.

Cellink

Debt Financing in 2023
CelLink Corporation is an innovative company based in Belmont, California, specializing in the development of flexible conductive backplanes and circuits designed for power electronics. Founded in 2012, the company focuses on applications that include batteries, light-emitting diodes, wire harnessing, and solar cells, among other devices that necessitate effective power transmission. By creating advanced backplane solutions, CelLink aims to enhance efficiency and performance across various electronic applications.
NREL is the only federal laboratory dedicated to the research, development, commercialization and deployment of renewable energy and energy efficiency technologies. Backed by 33 years of achievement, NREL leads the way in helping meet the growing demand for clean energy.

Jetcool

Grant in 2023
Jetcool Technologies Inc. specializes in the research and development of innovative cooling solutions for high-power electronics. Established in 2019 and headquartered in Littleton, Massachusetts, the company offers a range of cooling products, including microjet cooling modules designed for bare die, component, board, and system levels. Their technology, originally developed at MIT Lincoln Laboratory, utilizes small jets of fluid to effectively dissipate heat, making it suitable for industries such as defense, aerospace, advanced semiconductors, data centers, and electric vehicle power systems. Jetcool's focus on both customized solutions and stock products aims to enhance the performance and longevity of electronic devices while reducing heat generation and power consumption.

Redwood Materials

Debt Financing in 2023
Redwood Materials, Inc. is a recycling and materials processing company based in Carson City, Nevada, founded in 2017. The company specializes in developing sustainable methods for recycling various metals and materials, particularly from batteries and electronics, to support circular supply chains. Its focus includes lithium, nickel, copper, gold, silver, cobalt, and other critical elements used in electric vehicles, renewable energy storage, and consumer electronics. By providing environmentally sound recycling solutions, Redwood Materials aims to address the increasing demand for battery end-of-life management as the number of electric vehicles rises globally. The company's innovative technology not only recycles waste but also generates essential raw materials, enabling manufacturers to create sustainable products and significantly contributing to the transition towards a circular economy.

RePurpose Energy

Grant in 2022
Repurpose Energy provide affordable & sustainable energy storage solutions to enable the renewable energy transition.
Ocean Power Technologies, Inc. is a leader in developing systems that convert ocean wave energy into electricity. The company operates primarily in North and South America, Europe, and Asia, offering various products, including the PB3 PowerBuoy system, which generates power independently of the electric grid for use in remote offshore locations. Their product line includes both utility and autonomous PowerBuoy systems, as well as hybrid PowerBuoy products and subsea battery systems. Additionally, the company provides services such as electric power generation, real-time data communications, and marine installation for sectors like offshore oil and gas, defense and security, science and research, and communication. Founded in 1984 and headquartered in Monroe Township, New Jersey, Ocean Power Technologies targets public and private entities that require reliable remote power solutions.
NREL is the only federal laboratory dedicated to the research, development, commercialization and deployment of renewable energy and energy efficiency technologies. Backed by 33 years of achievement, NREL leads the way in helping meet the growing demand for clean energy.

SkyNano

Grant in 2022
SkyNano is a science-based technology company focused on commercializing a free-market solution to carbon pollution.

TEVERRA

Grant in 2022
PETROLERN LLC is a leading-edge technology company working on subsurface solutions for carbon storage, geothermal and oil and gas projects. It conducts cutting edge R&D and executes global service projects to increase its clients' profitability yet minimizing their environmental footprint. Petrolern’s mission is to apply the knowledge and learnings from the oil and gas industry to accelerate movement toward cleaner energy sources. We envision this by optimization and real-time monitoring of subsurface operations using advanced sensor technologies and artificial intelligence.

AirCapture

Grant in 2022
Developer of direct air capture technology designed to help businesses become carbon neutral, or even negative. The company leverages technology to develop modular and on-site technologies to efficiently capture carbon dioxide from the environment, enabling businesses to reduce greenhouse emissions.

OCOchem

Grant in 2022
OCOchem is a renewable chemical manufacturing company based in Vida, Oregon, focused on developing and commercializing a proprietary process that electro-catalytically converts carbon dioxide into formic acid and its derivatives. The company's innovative ECFORM process utilizes low-value carbon dioxide, water, and intermittent renewable electricity to produce high-value C1 chemicals. This method emphasizes energy efficiency and product selectivity, positioning OCOchem at the forefront of sustainable chemical manufacturing since its incorporation in 2016. By transforming CO2 into valuable products, OCOchem aims to contribute to environmental sustainability and the circular economy.
NREL is the only federal laboratory dedicated to the research, development, commercialization and deployment of renewable energy and energy efficiency technologies. Backed by 33 years of achievement, NREL leads the way in helping meet the growing demand for clean energy.

TerraPower

Grant in 2022
TerraPower, LLC, founded in 2008 and based in Bellevue, Washington, focuses on developing advanced nuclear energy technology aimed at providing sustainable and economical electricity production. The company is primarily known for its traveling wave reactor (TWR), which generates heat and electricity by utilizing fuel made from depleted uranium. In addition to its core TWR technology, TerraPower operates laboratories to support nuclear research and engineering, develops radioisotope generators for medical applications, and is working on molten chloride fast reactor (MCFR) solutions to extend the benefits of nuclear technology to sectors beyond electricity generation. The company aims to enhance the reliability of nuclear power plants while addressing issues of energy independence, environmental sustainability, and waste management.

Super.tech

Grant in 2022
Super.tech is a company that specializes in enhancing quantum computing by integrating software with hardware. Founded in 2020 by Pranav Gokhale and Fred Chong, Super.tech has developed a comprehensive quantum stack that addresses the challenges faced by quantum software developers. This innovative architecture allows software to be explicitly aware of the underlying quantum hardware, facilitating significant speed improvements for practical applications. By bridging the gap between quantum applications and hardware, Super.tech aims to advance the capabilities of quantum computing and support its practical implementation in various fields.
Littoral Power Systems, established in 2015 by experts in the alternative energy sector, focuses on innovative and sustainable hydropower technologies. The company specializes in providing renewable power solutions deployable in remote, non-grid-connected areas. A key feature of Littoral's approach is the development of prefabricated, modular equipment, which simplifies assembly and maintenance, allowing local installation crews with limited resources to effectively implement hydropower systems. The firm produces equipment made from recycled materials, addressing challenges related to cost, environmental impact, and regulatory complexities in ocean energy. Their designs cater to various applications, from small configurations suitable for tight waterways to large energy farms, enabling clients to efficiently harness energy with minimal environmental footprint.

C-Power

Grant in 2022
Columbia Power Technologies, Inc. specializes in the development and commercialization of wave energy harvesting systems, focusing on offshore applications. One of its key products, StingRAY, is designed to be deployed in water depths exceeding 60 meters and operates similarly to wind turbines in arrays. This innovative system captures energy from ocean waves and generates electricity on-board, making it suitable for various applications, including powering oceanographic sensors and generating megawatt-scale electricity. Founded in 2005 and headquartered in Charlottesville, Virginia, the company also maintains a research facility in Corvallis, Oregon, where it continues to advance its wave energy technology for reliable performance in diverse sea conditions.

Oscilla Power

Grant in 2022
Oscilla Power, Inc. is focused on developing renewable energy solutions, primarily through its Triton wave energy converter, which harnesses the potential of ocean waves to generate electricity. The company utilizes its patented iMEC technology platform, which leverages low-cost magnetostrictive alloys to efficiently convert mechanical energy into electrical energy. This technology can be applied to both new systems for large-scale renewable energy production and existing structures to capture energy from vibrational sources. Oscilla Power's efforts are directed towards utility-scale wave energy generation and providing downhole power solutions for the oil and gas industry. The company has received support for its innovative projects from various federal agencies, including the National Science Foundation and the Department of Energy. Founded in 2009 and based in Seattle, Washington, Oscilla Power also maintains satellite offices in Edinburgh, United Kingdom, and Kochi, India.

CalWave

Grant in 2022
CalWave is bringing superior power generating technology to market with global reach. Our proprietary wave energy converter technology achieves high performance while surviving storms and extreme conditions. Ocean waves are 20-60 times more energy-dense, predictable, and consistent compared to other forms of renewable energy. They are available at night and during winters. CalWave's patented technology converts this energy to electricity, equipping coastal communities with clean, reliable and local energy while keeping our planet and the health of future generations in mind.

Transitional Energy

Grant in 2022
Transitional Energy brings geothermal technology to the oil and gas industry to generate clean, baseload power from heat waste.

Geothermix

Grant in 2022
Geothermix is to increase heat recovery from geothermal resources by an order of magnitude or more through the application of horizontal wells and novel well-completion methods.
ICE Thermal Harvesting was founded as a partnership between like-minded individuals who view the global energy supply holistically. We desire to help piece together the energy mosaic that will provide for the society of the future. ICE Thermal Harvesting is based in The Woodlands, TX and focuses on supplying zero-emission power in various regions around the world.

TEVERRA

Grant in 2022
PETROLERN LLC is a leading-edge technology company working on subsurface solutions for carbon storage, geothermal and oil and gas projects. It conducts cutting edge R&D and executes global service projects to increase its clients' profitability yet minimizing their environmental footprint. Petrolern’s mission is to apply the knowledge and learnings from the oil and gas industry to accelerate movement toward cleaner energy sources. We envision this by optimization and real-time monitoring of subsurface operations using advanced sensor technologies and artificial intelligence.
Novoreach Technologies develops innovative material solutions for clean energy and environment applications.

Greenway Energy

Grant in 2022
Greenway Energy (GWE) is making substantial progress in the areas of hydrogen solutions and fuel cell technologies that will be environmentally beneficial.

Heliogen

Grant in 2021
Heliogen, Inc. is a clean energy company based in Pasadena, California, focused on utilizing sunlight to produce hydrogen and syngas fuels, aiming to replace fossil fuels across various sectors. Founded in 2013 at Idealab, Heliogen has developed a concentrated solar energy system powered by artificial intelligence, which offers a range of solutions including HelioMax, a closed-loop control system for electricity generation and process heat applications; HelioHeat, which provides carbon-free, ultra-high temperature heat for industries like cement, refining, and mining; and HelioFuel, renewable fuels suitable for transportation, heavy equipment, and household heating. Heliogen's mission is to create technology that can commercially replace fossil fuels in industrial processes with sustainable energy sources.

ReactWell

Grant in 2021
ReactWell, L.L.C. is an innovative company based in New Orleans, Louisiana, specializing in the development of underground reactor systems that convert lower-value liquids, gases, and solids into synthetic oil and various valuable liquid chemicals. Founded in 2011, the company also offers the Electromagnetic Oil Pipe Plugger (EMOPP), a system designed to effectively clog pipes. ReactWell provides its advanced technology services and products to a range of industries, including oil and gas, mining, petrochemicals, utilities, clean technology, and renewable energy. Their offerings support numerous applications such as crude oil substitutes, synthesis starting products, sterilization, mineral scavenging, and wastewater treatment, among others. By leveraging science, engineering, and information technology, ReactWell aims to deliver cost-effective renewable oil and chemical solutions, addressing the challenges posed by dwindling supplies of conventional hydrocarbons.

Terrestrial Energy

Grant in 2021
Terrestrial Energy Inc. is dedicated to the development and deployment of nuclear reactors utilizing its proprietary Integral Molten Salt Reactor (IMSR) technology, based in Oakville, Canada. Founded in 2012, the company focuses on creating advanced reactor power plants that employ molten salt as both fuel and coolant, enabling efficient heat generation. IMSR technology is designed to provide clean and cost-competitive heat for various industrial applications, extending the use of nuclear energy beyond traditional electric power markets to include processes such as chemical synthesis and desalination. This innovative approach aims to enhance industrial competitiveness and energy security while facilitating rapid global decarbonization by replacing fossil fuel combustion. Terrestrial Energy's IMSR power plants are positioned to enter the market within the 2020s, offering a safe and economically viable solution for harnessing clean energy.

Dimensional Energy

Grant in 2021
Dimensional Energy is a chemistry company focused on advancing artificial photosynthesis to produce sustainable polymers and chemical intermediates. The company develops innovative technology that efficiently captures and converts carbon dioxide, utilizing waveguides to distribute sunlight evenly throughout scalable reactors. By enhancing the reactivity of carbon dioxide molecules, Dimensional Energy aims to create hydrocarbon fuels that address significant energy requirements while promoting environmental responsibility. Their approach positions them at the forefront of solar fuel viability, leveraging novel, functionalized catalysts to transform energy production.

Quino Energy

Grant in 2021
Quino Energy manufactures batteries that use specially designed reactants called quinones that are dissolved in water. It is made from low-cost coal tar and wood tar, and is more cost-effective than competing battery technologies at longer storage durations of 5-12 hours. Quino Energy has licensed the quinone flow battery technology from Harvard University, where it was first developed.

Baryon

Grant in 2021
Baryon develops and commercializes energy efficiency technologies with applications in building cooling, water production, desalination, cold chain, and other industries.
Titan Advanced Energy Solutions specializes in developing advanced battery management systems for lithium-ion batteries, leveraging patented ultrasound technology to enhance battery performance. Their flagship product, ionView, delivers over 99% accuracy in state-of-health and state-of-charge assessments, which leads to a minimum 20% increase in charge capacity and a 125% extension of battery life. The systems also offer real-time monitoring, safety controls, and cell-level balancing. Titan's solutions cater to a diverse range of industries, including automotive, energy storage, mobile devices, and battery manufacturing, ultimately supporting the electrification and decarbonization efforts for a sustainable future. Founded in 2016 and located in Somerville, Massachusetts, the company was previously known as Titan Energy Analytics.

TEVERRA

Grant in 2021
PETROLERN LLC is a leading-edge technology company working on subsurface solutions for carbon storage, geothermal and oil and gas projects. It conducts cutting edge R&D and executes global service projects to increase its clients' profitability yet minimizing their environmental footprint. Petrolern’s mission is to apply the knowledge and learnings from the oil and gas industry to accelerate movement toward cleaner energy sources. We envision this by optimization and real-time monitoring of subsurface operations using advanced sensor technologies and artificial intelligence.

Tandem PV

Grant in 2021
Tandem PV, Inc. is a manufacturer of innovative photovoltaic cells that combine perovskite and silicon technologies to enhance solar panel efficiency. Founded in 2016 and based in Palo Alto, California, the company, previously known as Iris Photovoltaics, rebranded in February 2018. Tandem PV specializes in mechanically-stacked solar panels that integrate metal-halide perovskite semiconductors with traditional silicon cells. This integration aims to significantly improve the efficiency and economic viability of solar energy systems, providing clients with a substantial increase in the value and market potential of solar power while reducing installation costs. By leveraging advanced materials and technologies, Tandem PV seeks to contribute to the advancement of solar energy solutions.
Element 16 Technologies, founded in 2016 and based in Glendale, California, specializes in high-temperature heat energy storage systems aimed at enhancing energy efficiency for commercial and industrial facilities. The company has developed an innovative thermal energy storage technology that utilizes a molten sulfur mixture, replacing traditional molten salts and thermal oils. This advancement allows customers to minimize wasted heat in cogeneration plants, thereby improving overall efficiency and significantly reducing their carbon footprint. Through its solutions, Element 16 Technologies seeks to provide cost-effective energy management options that contribute to sustainability in the energy sector.

Onboard

Grant in 2021
Developer of machine-learning software designed to support businesses in building software infrastructure and creation. The company specializes in developing software and API to collect, enrich and stream data from buildings to their digital products and services, enabling engineers to collect commercial building data, which powers their Building Optimization, Cx, RCx, MBCx, and M&V services.

Heliogen

Grant in 2020
Heliogen, Inc. is a clean energy company based in Pasadena, California, focused on utilizing sunlight to produce hydrogen and syngas fuels, aiming to replace fossil fuels across various sectors. Founded in 2013 at Idealab, Heliogen has developed a concentrated solar energy system powered by artificial intelligence, which offers a range of solutions including HelioMax, a closed-loop control system for electricity generation and process heat applications; HelioHeat, which provides carbon-free, ultra-high temperature heat for industries like cement, refining, and mining; and HelioFuel, renewable fuels suitable for transportation, heavy equipment, and household heating. Heliogen's mission is to create technology that can commercially replace fossil fuels in industrial processes with sustainable energy sources.

Trident Desal

Grant in 2020
Developer of a desalination technique designed to solve the toxic brine problem that exists in desalination. The company's technology utilizes a solvent that, when heated attracts brine in high-salinity water separating it from freshwater, enabling organizations to reuse the solvent in subsequent cycles.

ReactWell

Grant in 2020
ReactWell, L.L.C. is an innovative company based in New Orleans, Louisiana, specializing in the development of underground reactor systems that convert lower-value liquids, gases, and solids into synthetic oil and various valuable liquid chemicals. Founded in 2011, the company also offers the Electromagnetic Oil Pipe Plugger (EMOPP), a system designed to effectively clog pipes. ReactWell provides its advanced technology services and products to a range of industries, including oil and gas, mining, petrochemicals, utilities, clean technology, and renewable energy. Their offerings support numerous applications such as crude oil substitutes, synthesis starting products, sterilization, mineral scavenging, and wastewater treatment, among others. By leveraging science, engineering, and information technology, ReactWell aims to deliver cost-effective renewable oil and chemical solutions, addressing the challenges posed by dwindling supplies of conventional hydrocarbons.

LanzaJet

Grant in 2020
LanzaJet producer of aviation fuel that captures waste gas emissions and uses bacteria to turn it into useable ethanol fuel.

SAFI-Tech

Grant in 2020
SAFI-Tech, Inc. produces no-heat solders for use in electronics manufacturing and assembly. It offers No-heat SAC305 technology. The company was incorporated in 2014 and is based in Ames, Iowa.
NREL is the only federal laboratory dedicated to the research, development, commercialization and deployment of renewable energy and energy efficiency technologies. Backed by 33 years of achievement, NREL leads the way in helping meet the growing demand for clean energy.

Maalka

Grant in 2019
Maalka is a developer of an energy efficiency platform aimed at assisting cities and building owners in measuring, managing, and reducing their environmental impact. The Maalka Platform provides a comprehensive suite of tools that enables organizations to track their energy, water, and waste consumption, delivering insights on how to enhance efficiency and minimize environmental footprints. By facilitating automated energy efficiency initiatives and streamlining data-driven outreach and reporting, Maalka supports private organizations and agencies in the United States to effectively manage their building portfolios. The platform is characterized by its open, secure, and scalable design, making data-driven program management accessible and affordable for a diverse range of users.

BlueDot Photonics

Grant in 2019
BlueDot Photonics, Inc., based in Kirkland, Washington, specializes in the design, development, and production of solar panels and photonic devices. Founded in 2019, the company aims to significantly advance solar power deployment by reducing the cost of silicon solar panels by 10% while improving their efficiency by 16%. Additionally, BlueDot Photonics is focused on innovative manufacturing techniques to create flexible, lightweight solar modules with efficiencies exceeding 25%. By utilizing new semiconductor materials, the company enhances the performance and durability of solar panels, enabling customers to access affordable alternative energy solutions.

Principle Power

Grant in 2019
Principle Power, Inc. specializes in providing technology and services for the offshore wind industry, focusing on the deep-water market where traditional installations have faced economic and technological challenges. Founded in 2007 and headquartered in Emeryville, California, with additional offices in France and Portugal, the company has developed the WindFloat, a semi-submersible floating wind turbine foundation. This innovative technology allows offshore wind projects to be established in transitional and deep-water locations, enabling optimal wind resource harvesting regardless of water depth or seabed conditions. Principle Power serves a diverse clientele, including developers, utilities, and independent power producers, aiming to unlock the potential of offshore wind energy on a global scale.

Jolt Energy

Grant in 2019
Jolt Energy Storage Technologies, LLC, founded in 2015 and based in West Michigan, specializes in developing innovative compounds for lithium-ion batteries. The company focuses on creating organic electrochemical additives that enhance battery performance by increasing capacity, preventing overcharging, and simplifying electronic control systems. These advancements allow battery manufacturers to improve the safety, functionality, and cost-effectiveness of their products. Additionally, Jolt is working on all-organic nonaqueous redox flow batteries (RFBs) designed for large-scale energy storage, offering a reliable and environmentally friendly alternative to traditional battery technologies. With a commitment to sustainability, Jolt Energy aims to revolutionize the energy storage sector.

Sunvapor

Grant in 2019
Sunvapor, Inc. is a renewable energy technology and project development company based in Livermore, California. Founded in 2014, the company specializes in the development of solar parabolic trough collectors that utilize solar thermal energy to produce steam on an industrial scale. Sunvapor offers a solar steam plant that integrates innovative energy storage technology with its solar collectors, enhancing the efficiency and reliability of solar energy production.

NexTC

Grant in 2019
NexTC manufactures insulator and conductive oxide coatings for the energy and large area electronics markets. The company was founded in 2018 and is headquartered in Corvallis, Oregon.

AquaNRG

Seed Round in 2019
AquaNRG has developed a state-of-the-art cloud-based application for energy, water and environmental markets which merges physics-chemistry simulation with machine learning for faster, more accurate and less expensive product and process design and engineering

Carbon Clean

Grant in 2019
Carbon Clean Solutions Pvt. Ltd. specializes in carbon dioxide (CO2) separation technology aimed at reducing emissions from industrial applications, particularly in sectors such as power generation, steel, cement, and chemicals. Founded in 2009 and based in Mumbai, India, the company has research and operational facilities in the United Kingdom and the United States. Its proprietary technologies include CDRMax, which recovers CO2 from flue gases in the fertilizer industry, and Meth Pure, designed for biogas purification without methane loss. Additionally, CCS TGR technology targets CO2 emissions from iron production processes. The firm’s advanced, energy-efficient carbon capture systems can be integrated into new power plants or retrofitted to existing facilities, allowing for the extraction of up to 90% of CO2 from flue gases. By providing scalable and cost-effective solutions, Carbon Clean Solutions helps industries decarbonize and take advantage of the value of captured carbon.

Onboard

Grant in 2019
Developer of machine-learning software designed to support businesses in building software infrastructure and creation. The company specializes in developing software and API to collect, enrich and stream data from buildings to their digital products and services, enabling engineers to collect commercial building data, which powers their Building Optimization, Cx, RCx, MBCx, and M&V services.

EcoLectro

Grant in 2018
Ecolectro makes materials that make clean fuels and chemicals. The company is commercializing a proprietary platform of novel polymers that are best in class, allowing its customers to produce devices that last longer and cost less. Ecolectro has defensible IP, state-of-the-art facilities, experienced personnel, and strong customer traction.

SolarReserve

Grant in 2018
SolarReserve, a venture-backed renewable energy company, focuses on advanced solar thermal storage technology. SolarReserve was formed to solve two of the fundamental barriers of renewable energy: scalability and storage. Unlike hydroelectric, geothermal, biomass, and other renewable energy technologies that use limited renewable fuel sources, SolarReserve's power plants draw their heat from the sun - earth's ultimate source of clean energy. And unlike wind and photovoltaics, SolarReserve's power plants can deliver power whenever it is needed, either 24 hours per day or only during "peak" demand. By overcoming these two key barriers, SolarReserve enables utility-scale, clean, renewable electricity generation.

Fracsun

Grant in 2018
Fracsun is the creator of the most accurate PV soiling monitor device to maximize PV array output.

Grid7

Grant in 2018
Grid7’s project, E-Blockchain: A Scalable Platform for Secure Energy Transactions and Control, aims to use blockchain technology to address power plant cybersecurity issues and explore how a decentralized approach can improve the reliability of energy networks.

PolarPanel

Grant in 2018
PolarPanel is a Forbes 30 Under 30 renewable energy startup focused on bringing clean, reliable, and low-maintenance refrigeration technology to the commercial cold chain.

Hearth Labs

Grant in 2018
Hearth Labs is making sensors to better control the built environment and reduce energy consumption.

FuelCell Energy

Grant in 2018
FuelCell Energy, Inc. specializes in the design, manufacture, installation, operation, and servicing of stationary fuel cell power plants designed for distributed power generation. The company offers a range of products, including those based on carbonate fuel cell technology, which can be configured for on-site power generation, utility grid support, and hydrogen production, among others. FuelCell Energy also provides carbon capture systems that extract carbon dioxide from emissions produced by various industrial sources. The company has approximately 300 megawatts of power generation capacity installed or in backlog and serves diverse sectors such as utilities, industrial operations, healthcare, and government facilities. With a strong presence primarily in the United States, South Korea, England, and Germany, FuelCell Energy has generated over 1.5 billion kilowatt hours of power from renewable biogas and clean natural gas. Headquartered in Danbury, Connecticut, the company is also engaged in ongoing research to advance hydrogen generation and solid oxide fuel cell technology.

Eonix

Grant in 2018
Eonix is a manufacturer focused on developing semi-autonomous materials that streamline the design process for lithium-ion batteries. The company has introduced the ATLAS-system, an innovative research and development platform that significantly cuts down the time and costs associated with creating new materials. This system allows for the rapid design of drop-in compatible electrolyte solutions that enhance energy density and support higher voltage operations. By addressing specific challenges faced by electric vehicles, grid storage, and hybrid defense systems, Eonix aims to facilitate the adoption of clean technology and advance the performance of next-generation energy storage solutions.

AquaNRG

Pre Seed Round in 2018
AquaNRG has developed a state-of-the-art cloud-based application for energy, water and environmental markets which merges physics-chemistry simulation with machine learning for faster, more accurate and less expensive product and process design and engineering

Mesodyne

Non Equity Assistance in 2018
Mesodyne's solution is a novel ultra-high energy density, multi-fuel, silent, compact power generator. Our generators convert fuel to electricity with heat and light as intermediaries: a small micro combustor heats a photonic crystal to incandescence and the resulting light is tailored to the bandgap of an infrared cell resulting in unprecedented high efficiencies.

Saratoga Energy

Grant in 2017
Saratoga Energy Research Partners is focused on developing an innovative and cost-effective process to synthesize graphite from carbon dioxide. The company's technology utilizes electrochemical methods to separate CO2 into oxygen and graphitic carbon, which is a vital component for lithium-ion batteries. The graphite produced through this process is particularly advantageous for fast-charging electric vehicles and grid storage, making it suitable for a wide range of energy and industrial applications. Additionally, Saratoga is involved in the development of carbon nanotubes, which are nano-scale carbon fibers that exhibit high strength, electrical conductivity, and thermal conductivity. These properties enable various sectors to leverage fast charging solutions at competitive prices.
Danforth Technology Company (DTC) is a venture builder based in St. Louis, Missouri, and operates as a subsidiary of the Donald Danforth Plant Science Center. Its primary role is to facilitate the early-stage development of startup companies that leverage technologies developed by the Center's scientists. DTC focuses on moving scientific discoveries into the marketplace more efficiently by providing intellectual property development, licensing, and entrepreneurship support. The company also offers seed funding and early management assistance to promising startups, enhancing the potential for innovation in plant science and contributing to broader societal goals such as improving human health and environmental sustainability.

Sironix Renewables

Grant in 2017
Sironix Renewables, Inc. is a Seattle-based company founded in 2016 that specializes in producing environmentally friendly ingredients for cleaning and personal care products derived from plants. The company focuses on the development of oleo-furan surfactant technology, which enables the production of plant-based detergents with fewer harmful chemicals and higher effectiveness. Sironix Renewables aims to create safer consumer products, offering alternatives that are free from harmful additives. Additionally, the company’s innovations have potential applications in various industries, including agricultural pesticides and oil spill remediation, reflecting its commitment to sustainability and safety in industrial consumer products.

PowerMarket

Grant in 2017
ProjectEconomics specializes in providing software and solutions designed to enhance the efficiency of distributed generation programs within the energy sector, particularly focusing on community solar initiatives. The company caters to utilities, energy retailers, and solar developers, facilitating the implementation and administration of community solar projects. By streamlining these processes, ProjectEconomics aims to support the growth of renewable energy and promote more accessible solar power options for communities.

Echogen Power Systems

Grant in 2017
Echogen Power Systems, LLC develops heat-to-power generation systems. The company’s product captures heat energy and converts into usable power. It offers heat recovery systems for bottom cycling in gas turbines, industrial waste heat recovery, solar thermal, geothermal, and hybrid alternatives to the internal combustion engines. The company also offers heat recovery engines for various power outputs. It serves companies that generate heat as a byproduct of their processes, and others. The company was founded in 2007 and is based in Akron, Ohio. Echogen Power Systems, LLC is a former subsidiary of Cognitek Management Systems Inc.
Next Energy Technologies, founded in 2010 and based in Santa Barbara, California, specializes in transparent energy harvesting window technology. The company's innovative approach allows windows to generate energy from sunlight while maintaining aesthetic appeal and high performance. Their technology is designed to work efficiently even in challenging lighting conditions, and it features coatings integrated directly into dual-pane windows, eliminating additional encapsulation costs. This enables clients to convert windows and glass facades into low-cost, on-site renewable energy sources for buildings. Through its advancements, Next Energy Technologies aims to reshape the landscape of energy production in the built environment.

Fracsun

Grant in 2017
Fracsun is the creator of the most accurate PV soiling monitor device to maximize PV array output.

Solstice Energy Solutions

Venture Round in 2017
Solstice Energy Solutions uses IoT and software to enable, connect, and intelligently manage the shared-economy of distributed energy resources in emerging markets. The company was founded in 2016 and is headquartered in San Francisco, California.

Sironix Renewables

Grant in 2016
Sironix Renewables, Inc. is a Seattle-based company founded in 2016 that specializes in producing environmentally friendly ingredients for cleaning and personal care products derived from plants. The company focuses on the development of oleo-furan surfactant technology, which enables the production of plant-based detergents with fewer harmful chemicals and higher effectiveness. Sironix Renewables aims to create safer consumer products, offering alternatives that are free from harmful additives. Additionally, the company’s innovations have potential applications in various industries, including agricultural pesticides and oil spill remediation, reflecting its commitment to sustainability and safety in industrial consumer products.

Solstice

Grant in 2016
Solstice Power Technologies, Inc. develops customer management software for solar power companies. It provides an online platform for solar marketplace that offers subscriber aggregation and management services to solar developers, utilities, and other providers of shared solar energy. Solstice Power Technologies, Inc. was formerly known as Solstice Initiative, Inc. The company was founded in 2014 and is based in Cambridge, Massachusetts.

Atrex Energy

Grant in 2016
Atrex Energy, Inc. specializes in the design and manufacture of advanced power generation systems that utilize tubular solid oxide fuel cell technology. This innovative approach allows the conversion of conventional natural gas and propane into direct current electrical power with high efficiency, eliminating the need for hydrogen and combustion methods found in traditional generators. The company's product offerings include uninterruptible power supplies for first responders, portable telemedicine systems, and solutions tailored for various industries such as oil and gas, mining, construction, off-grid telecommunications, railroads, and environmental monitoring. Atrex Energy's systems are distributed through a network of authorized partners across Alaska, Canada, the United States, and Mexico. Established in 1994 and headquartered in Walpole, Massachusetts, Atrex Energy is poised for growth, anticipating an expansion of its workforce to meet increasing demand for its cost-effective and reliable power generation solutions.

PowerScout

Grant in 2016
PowerScout, Inc. is an online platform based in San Francisco that assists California residents in finding and comparing deals on clean energy solutions. The company specializes in smart home improvements, including solar panels, electric vehicle charging, battery storage, and energy-efficient appliances. By entering their address and sharing their electric bill, users can receive customized offers, choose purchase options, and schedule home surveys and installations. Utilizing artificial intelligence and extensive data analysis, PowerScout helps consumers understand their options and make informed decisions by providing competitive bids from a curated selection of top installation service providers. Founded in 2015, PowerScout aims to streamline the decision-making process for smart home improvement similar to how Credit Karma simplifies credit card selection. The company has received significant grants from the U.S. Department of Energy, underscoring its commitment to promoting clean energy solutions.

PowerMarket

Grant in 2016
ProjectEconomics specializes in providing software and solutions designed to enhance the efficiency of distributed generation programs within the energy sector, particularly focusing on community solar initiatives. The company caters to utilities, energy retailers, and solar developers, facilitating the implementation and administration of community solar projects. By streamlining these processes, ProjectEconomics aims to support the growth of renewable energy and promote more accessible solar power options for communities.

Inventev

Grant in 2016
Inventev delivers mobile power generation using an innovative Plug-in Hybrid Electric Vehicle (PHEV) commercial truck architecture. They are developing and applying their key next-gen propulsion and controls technology to OEM-branded trucks creating electrically-biased drive systems.Their market focus is on medium duty classes 2B to 5 (such as F250/350/450/550; 2500/3500; etc.) where many work trucks carry cargo or perform job site tasks.

Pick My Solar

Seed Round in 2015
Solar Merchant operates an online solar marketplace that focuses on the development process for the small commercial solar sector using a suite of in-house and industry-networked software. The company was founded in 2015 and it operates as a subsidiary of Pick My Solar Corp.

Accio Energy

Grant in 2015
Accio Energy is making distributed wind energy systems scalable, reliable, and affordable with Aerovoltaic energy systems that directly convert wind energy to electricity without any moving parts. Accio Energy Aerovoltaic energy systems offer the low cost of big wind with the modularity and flexibility of solar. It's a new direction in wind energy. The company was founded in 2007 and is based in Ann Arbor, Michigan.

PowerScout

Grant in 2015
PowerScout, Inc. is an online platform based in San Francisco that assists California residents in finding and comparing deals on clean energy solutions. The company specializes in smart home improvements, including solar panels, electric vehicle charging, battery storage, and energy-efficient appliances. By entering their address and sharing their electric bill, users can receive customized offers, choose purchase options, and schedule home surveys and installations. Utilizing artificial intelligence and extensive data analysis, PowerScout helps consumers understand their options and make informed decisions by providing competitive bids from a curated selection of top installation service providers. Founded in 2015, PowerScout aims to streamline the decision-making process for smart home improvement similar to how Credit Karma simplifies credit card selection. The company has received significant grants from the U.S. Department of Energy, underscoring its commitment to promoting clean energy solutions.

Ecovia Renewables

Grant in 2015
Ecovia Renewables Inc., founded in 2014 as a spin-out from the University of Michigan and based in Ann Arbor, specializes in developing bio-based ingredients and materials through a proprietary fermentation process utilizing renewable biomass. The company offers a variety of products, including the EcoSynth platform for biochemical and biofuel production, a suite of biopolymers designed as biodegradable alternatives to traditional polymers, and cellulosic biofuels derived from lignocellulosic biomass. Ecovia's biopolymers are versatile, finding applications in agriculture, such as soil additives for water retention, and in personal care products, serving as thickeners and super-absorbent materials. The company is committed to sustainable practices, aiming to provide high-performing, cost-effective biobased solutions for various industries.

ConnectDER

Grant in 2014
ConnectDER LLC specializes in designing and manufacturing solutions that facilitate the connection of grid-ready distributed energy resources, particularly solar photovoltaic systems. The company creates a connection point that installs between residential electric meters and meter sockets, enhancing the integration of renewable energy. Additionally, ConnectDER offers a cloud-based platform that allows fleet operators to access metering and operational data, as well as manage the commissioning and decommissioning of ConnectDER units, including firmware updates. Founded in 2011 and based in Philadelphia, Pennsylvania, ConnectDER was previously known as Infinite Invention LLC before rebranding in 2015. The company aims to provide effective solutions to complex challenges in the power and water sectors.
Next Energy Technologies, founded in 2010 and based in Santa Barbara, California, specializes in transparent energy harvesting window technology. The company's innovative approach allows windows to generate energy from sunlight while maintaining aesthetic appeal and high performance. Their technology is designed to work efficiently even in challenging lighting conditions, and it features coatings integrated directly into dual-pane windows, eliminating additional encapsulation costs. This enables clients to convert windows and glass facades into low-cost, on-site renewable energy sources for buildings. Through its advancements, Next Energy Technologies aims to reshape the landscape of energy production in the built environment.

WattBuy

Grant in 2014
WattBuy is an online marketplace that assists residents in saving on electricity costs by facilitating the selection of cheaper electricity providers. Founded in 2017, the platform empowers users to make informed decisions about their home electricity expenses by enabling them to browse and choose from a variety of plans available in their area. As several state governments have deregulated the electricity market, homeowners in 14 states can now access over 50 electricity providers and plans tailored to their needs. WattBuy utilizes a personalized recommendation engine to help clients set up electricity plans that align with their preferences and usage, ultimately allowing them to switch to more cost-effective options. The company is supported by the Department of Energy and Techstars Accelerator.

Brittmore Group

Grant in 2014
Established in 2010, Brittmore Group LLC’s mission is to radically reduce the cost of solar by applying industrial automation to solar farm construction. Just as robotics and automation have revolutionized the repetitive actions in manufacturing, Brittmore Group is bringing this revolution to photovoltaic (PV) power plant construction. Brittmore Group is an exciting startup company in the heart of California’s Silicon Valley. Taking advantage of the Valley’s network of world leadingSilicon Valley engineering and manufacturing resources, Brittmore is able to apply, with economy, mature technologies and concepts from high tech manufacturing processes to the challenges of PV power plant construction.

Primus Power

Series C in 2014
Primus Power Corporation, founded in 2009 and based in Hayward, California, designs and manufactures advanced electrical energy storage systems, particularly focusing on flow batteries. Its flagship product, the EnergyPod 2, offers flexible capacity ranging from 25 kW to 25 MW, catering to various applications such as peak shaving, bulk energy shifting, renewable energy integration, grid support, and islanding. The EnergyPod provides up to five hours of energy discharge with a lifespan of twenty years, utilizing safe and low-maintenance Zinc Bromine chemistry. Primus Power serves a diverse clientele, including commercial and industrial sectors, data centers, microgrids, and utility customers, with systems deployed both domestically and internationally. The company is recognized for its patented innovations in battery technology, cell design, and system engineering, which contribute to its competitive pricing and reliability.

Cree

Grant in 2013
Cree is a market-leading innovator of lighting-class LEDs, LED lighting, and semiconductor solutions for wireless and power applications.

SMASHsolar

Seed Round in 2013
SMASHsolar specializes in simplifying solar energy installation for homeowners and contractors by addressing common barriers such as cost and complexity. The company has created an innovative solar module that can be easily assembled, which allows for installations that are twice as fast as traditional solar panels. This design significantly lowers labor skill requirements and costs, while also enhancing crew efficiency, ultimately reducing overall installation expenses. The modular system is designed for easy expansion, enabling homeowners to purchase only what they need initially and upgrade their solar capacity as desired. This approach not only streamlines the installation process but also makes solar energy more accessible to a broader audience.

IDC Westinghouse

Grant in 2013
IDC Westinghouse operates in the energy sector, primarily focusing on nuclear technology and solar lighting solutions. The company is recognized for supplying safe and innovative nuclear technology, delivering reliable nuclear power plants, nuclear fuel, and various plant automation services to utility customers globally. Emphasizing a commitment to safety and sustainability, IDC Westinghouse leverages its extensive history and experience to enhance the efficiency and dependability of nuclear energy. Additionally, the company offers a diverse range of solar landscape lighting products that are noted for their durability and professional quality, catering to both residential and commercial markets.

Gen4 Energy

Grant in 2013
Gen4 Energy, originally established as Hyperion Power Generation Inc. in 2007, is focused on commercializing the Gen4 Module, an advanced mini nuclear reactor. Developed from intellectual property by scientists at Los Alamos National Laboratory, the Gen4 Module aims to address the demand for a compact and transportable power source that is safe, clean, sustainable, and cost-effective. The G4M reactor, designed by Gen4 Energy, offers a low-cost and efficient alternative to traditional large water reactors, enhancing the licensing processes for next-generation nuclear technologies. This small-scale reactor is particularly suited for applications in mining, oil and gas operations, large government facilities, and isolated communities, providing a reliable source of baseload power.
Next Energy Technologies, founded in 2010 and based in Santa Barbara, California, specializes in transparent energy harvesting window technology. The company's innovative approach allows windows to generate energy from sunlight while maintaining aesthetic appeal and high performance. Their technology is designed to work efficiently even in challenging lighting conditions, and it features coatings integrated directly into dual-pane windows, eliminating additional encapsulation costs. This enables clients to convert windows and glass facades into low-cost, on-site renewable energy sources for buildings. Through its advancements, Next Energy Technologies aims to reshape the landscape of energy production in the built environment.

ConnectDER

Grant in 2012
ConnectDER LLC specializes in designing and manufacturing solutions that facilitate the connection of grid-ready distributed energy resources, particularly solar photovoltaic systems. The company creates a connection point that installs between residential electric meters and meter sockets, enhancing the integration of renewable energy. Additionally, ConnectDER offers a cloud-based platform that allows fleet operators to access metering and operational data, as well as manage the commissioning and decommissioning of ConnectDER units, including firmware updates. Founded in 2011 and based in Philadelphia, Pennsylvania, ConnectDER was previously known as Infinite Invention LLC before rebranding in 2015. The company aims to provide effective solutions to complex challenges in the power and water sectors.

ITN Energy Systems

Venture Round in 2012
ITN Energy Systems (ITN) is a research and product development organization focused specifically on technology development and commercialization. As of February 2011, ITN has invested over $180 Million in the development and commercialization of core technologies. ITN’s mission is to develop and commercialize emerging technologies for commercial and government markets by establishing successful spinoffs, joint ventures, and/or licensing arrangements.

ThermoEnergy

Grant in 2012
ThermoEnergy Corporation, founded in 1988 and headquartered in Worcester, Massachusetts, specializes in the development and commercialization of advanced wastewater treatment and carbon-reducing combustion technologies. The company offers a variety of wastewater treatment systems based on its controlled atmosphere separation technology (CAST) platform, which includes solutions for treating brackish and natural water sources, recycling wastewater, and ensuring compliance with regulatory standards. Key products include Turbo CAST for heat recuperation and Mobile CAST for self-contained wastewater processing. Additionally, ThermoEnergy provides ammonia recovery processes for agricultural fertilizers, renewable energy solutions that convert waste into usable fuel, and enhanced biogas production methods for animal waste treatment. The company also holds a patented pressurized oxycombustion technology that facilitates the conversion of fossil fuels and biomass into electricity while significantly reducing air emissions and capturing carbon dioxide. Its technologies serve various sectors, including heavy manufacturing, petrochemicals, and municipal wastewater treatment, aiming to support clients in enhancing efficiency, reducing costs, and achieving sustainability goals.
Symbios Technologies is commercializing its disruptive advanced low-cost aqueous plasma oxidation technology, the Symbios Tubular Plasma Reactor, to clean water, preserve the environment, and protect human health.
SolarBridge Technologies, originally founded as SmartSpark Energy Systems in 2004, specializes in power electronics technologies developed at the University of Illinois. In 2009, the company shifted its focus to the solar industry, offering advanced microinverter and monitoring solutions. With major research and development facilities in Champaign, Illinois, and a corporate headquarters in Austin, Texas, SolarBridge is led by experienced professionals from both industry and academia. The company's mission centers on reducing the Levelized Cost of Energy (LCOE) for solar installations by enhancing reliability, boosting energy production, and streamlining installation processes.
SolarBridge Technologies, originally founded as SmartSpark Energy Systems in 2004, specializes in power electronics technologies developed at the University of Illinois. In 2009, the company shifted its focus to the solar industry, offering advanced microinverter and monitoring solutions. With major research and development facilities in Champaign, Illinois, and a corporate headquarters in Austin, Texas, SolarBridge is led by experienced professionals from both industry and academia. The company's mission centers on reducing the Levelized Cost of Energy (LCOE) for solar installations by enhancing reliability, boosting energy production, and streamlining installation processes.

Solectria Renewables

Grant in 2011
Solectria Renewables, LLC is the U.S. based grid-tied PV inverter, string combiner and web-based monitoring manufacturer for residential, commercial and utility-scale solar projects. Our wide range of products includes 1.8kW to 500kW grid-tied inverters for systems 1kW to multi-MWs. Solectria Renewables is backed by over 20 years of power electronics and inverter experience and world class warranties. All of our commercial and utility-scale PV inverters are manufactured in the USA, ARRA compliant, Ontario FIT Content Compliant, and listed to UL 1741/IEEE 1547.

Innovalight

Venture Round in 2011
Innovalight, founded by Conrad Burke, specializes in the development of high-efficiency, low-cost solar modules utilizing a unique silicon ink technology. This innovative approach, which has been in development since 2005, allows for the processing of silicon in a liquid form, significantly enhancing the cost and efficiency of solar power generation. Innovalight's focus is on creating ultra-thin film power modules suitable for both residential and commercial applications, contributing to a manufacturing paradigm shift in the solar industry. By emphasizing the use of silicon-based solar cells, the company aims to improve the accessibility and effectiveness of grid-connected solar power solutions.

1366 Technologies

Grant in 2011
1366 Technologies Inc. is a manufacturer of silicon wafers primarily used in solar cell modules. Founded in 2007 and based in Bedford, Massachusetts, the company specializes in producing 3D direct wafers and traditional silicon solar wafers. Its innovative technology allows for the direct creation of silicon wafers from molten silicon, resulting in lower production costs, reduced energy requirements, and improved uniformity. This approach enables businesses to develop solar cells that offer a better price-to-performance ratio. 1366 Technologies has established strategic partnerships with Hanwha Q CELLS and operates additional locations in Shanghai, China, and Mumbai, India.
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