Massachusetts Clean Energy Center

Lithios is a technology company that uses electrochemistry for advanced lithium extraction from tough mixtures.

Found Energy is a renewable energy company engaging in turning aluminum into a renewable energy carrier. It recovers aluminum waste from landfills and uses a carbon-free process to produce hydrogen on-demand for less than $0.50 per kilogram of hydrogen and at five times the volumetric energy density of liquid hydrogen.

Blaze Power operates as a lithium-ion battery materials manufacturer. It innovates and commercializes iron-based cathode materials to enable mass-market electrification in transportation and energy storage. The company is driven to industrialize these cathodes in purpose-built inflation reduction act-compliant facilities.

BlocPower is an energy technology startup based in Los Angeles, California, focused on creating healthier, greener, and smarter buildings. Founded in 2014 in Brooklyn, New York, by Donnel Baird and Morris Cox, the company specializes in retrofitting urban buildings with advanced energy efficiency technologies and green heating and cooling systems. BlocPower identifies energy-wasting buildings and utilizes a proprietary machine learning platform to determine the most effective retrofits for maximizing energy savings. The company connects various stakeholders, including government agencies, utilities, building owners, and equipment providers, to facilitate these upgrades. With a mission to serve financially underserved communities, BlocPower has completed projects in nearly 1,000 buildings, helping customers save 20–40% on their annual energy bills. By leveraging data and innovative financing, BlocPower aims to reduce carbon emissions and improve health outcomes while addressing the climate crisis.

Feon develops new-molecule-based liquid electrolytes for lithium-ion and lithium-metal batteries.

Nth Cycle is a metal processing technology company that focuses on recovering critical minerals through innovative electro-extraction methods. It collaborates with battery recyclers and mining operations to extract production-grade minerals from e-waste and low-grade mine tailings, offering a cleaner and more customizable alternative to traditional hydrometallurgical and pyrometallurgical processes. By utilizing its advanced recycling technology, Nth Cycle aims to reduce reliance on primary mining, thereby creating a sustainable secondary source of rare earth metals in the United States. This approach supports the manufacturing and recycling industries while contributing to advancements in clean energy.

Takachar is focused on creating a network of waste management enterprises in Kenya that convert agricultural residues into eco-friendly charcoal, providing an affordable cooking fuel for low-income households. The company has developed low-cost technologies that can be locally manufactured and have been successfully tested in Kenya over the past three years. Since its inception, Takachar has assisted in establishing seven local waste-to-charcoal enterprises, some of which have achieved operational profitability. To date, Takachar has created approximately 100 jobs and sold 50 tons of eco-char. The company aims to demonstrate the long-term financial sustainability of these enterprises, with the intention of developing a franchise network in the future. Additionally, Takachar employs oxygen-lean torrefaction reactors to transform biomass into commercially viable products, helping farmers prevent the open burning of agricultural waste while providing them with opportunities to generate extra income through value-added chemicals.

Heila Technologies develops a platform that connects solar arrays, batteries, and other distributed energy resources (DERs) to create self-managing microgrids. The Heila IQ Platform is a decentralized optimization system that simplifies the integration and operation of these resources, allowing for autonomous management and optimization. This technology transforms various components, such as batteries and solar arrays, into independent intelligent agents capable of self-organization and regulation. Heila Technologies serves a diverse clientele, including utility representatives, developers, energy users, and public officials. Founded in 2017 and based in Somerville, Massachusetts, the company aims to facilitate the commercialization of its platform, providing granular analysis and data-driven recommendations to enhance the resilience and efficiency of energy networks while promoting energy savings and reducing carbon emissions.

Blackburn Energy, Inc. specializes in renewable energy solutions for the commercial trucking industry through its innovative product, RelGen. This technology harnesses kinetic energy from a truck's drive shaft, converting it into electricity via a custom alternator. The generated power is stored in a battery array, enabling it to supply energy to various truck subsystems including liftgates, electric auxiliary power units (APUs), and sensors for driver-assist and autonomous features. Blackburn Energy's solutions aim to reduce reliance on engine idling, thus cutting fuel and maintenance costs while minimizing carbon emissions. The company's products are particularly beneficial for long-haul drivers, providing essential power for climate control and operational needs during rest periods. Blackburn Energy was founded in 2008 and is headquartered in Amesbury, Massachusetts.

FLxDER creates a prototype of its cloud-based software to optimize electric fleet vehicle charging so as to reduce electric grid impacts and costs, and coordinate operation with other distributed energy resources.

Titan Advanced Energy Solutions (Titan) develops advanced battery management systems for lithium-ion batteries (LiB).Their patented ultrasound technology provides over 99% SoH/SoC accuracy over the life of the battery. The benefits of this dramatically improved accuracy are significant: at least 20% increase in charge capacity and 125% increase in battery life. The technology also provides unprecedented safety monitoring and control, real-time cell level monitoring and balancing. Suitable for automotive, ESS and consumer markets, Titan’s ultrasound ionView™ technology is priced comparably to traditional solutions, while adding significant benefits to manufacturers, integrators, producers and consumers.

SYSO Technologies specializes in renewable energy and storage management technology and services. The company has developed a cloud-based platform aimed at enhancing the performance of renewable energy assets. By integrating artificial intelligence with a product-agnostic server, the platform enables asset owners to transform passive renewable generators, such as photovoltaics and wind power, into active energy producers. This approach allows asset owners to maximize the value of their investments by increasing revenue, reducing operational costs, and improving the reliability of their energy systems. SYSO Technologies focuses on providing comprehensive solutions that support the effective management of renewable energy and storage assets.

Lydian Labs manufactures renewable energy equipment from industrial plants, landfills or directly from air.

Titan Advanced Energy Solutions (Titan) develops advanced battery management systems for lithium-ion batteries (LiB).Their patented ultrasound technology provides over 99% SoH/SoC accuracy over the life of the battery. The benefits of this dramatically improved accuracy are significant: at least 20% increase in charge capacity and 125% increase in battery life. The technology also provides unprecedented safety monitoring and control, real-time cell level monitoring and balancing. Suitable for automotive, ESS and consumer markets, Titan’s ultrasound ionView™ technology is priced comparably to traditional solutions, while adding significant benefits to manufacturers, integrators, producers and consumers.

Blackburn Energy, Inc. specializes in renewable energy solutions for the commercial trucking industry through its innovative product, RelGen. This technology harnesses kinetic energy from a truck's drive shaft, converting it into electricity via a custom alternator. The generated power is stored in a battery array, enabling it to supply energy to various truck subsystems including liftgates, electric auxiliary power units (APUs), and sensors for driver-assist and autonomous features. Blackburn Energy's solutions aim to reduce reliance on engine idling, thus cutting fuel and maintenance costs while minimizing carbon emissions. The company's products are particularly beneficial for long-haul drivers, providing essential power for climate control and operational needs during rest periods. Blackburn Energy was founded in 2008 and is headquartered in Amesbury, Massachusetts.

Titan Advanced Energy Solutions (Titan) develops advanced battery management systems for lithium-ion batteries (LiB).Their patented ultrasound technology provides over 99% SoH/SoC accuracy over the life of the battery. The benefits of this dramatically improved accuracy are significant: at least 20% increase in charge capacity and 125% increase in battery life. The technology also provides unprecedented safety monitoring and control, real-time cell level monitoring and balancing. Suitable for automotive, ESS and consumer markets, Titan’s ultrasound ionView™ technology is priced comparably to traditional solutions, while adding significant benefits to manufacturers, integrators, producers and consumers.

Ascend Elements specializes in the production of advanced battery materials by reclaiming valuable elements from spent lithium-ion batteries. The company employs hydroprocess recycling and direct recycling methods, which deconstruct old cathode materials at the atomic level to generate new cathode materials. This innovative approach not only enhances the efficiency of recycling processes but also enables clients to maximize their returns on assets, ultimately supporting the production of economically viable and low-cost battery materials.

Idle Smart specializes in automated engine start-stop solutions aimed at enhancing fleet uptime and minimizing idle time. The company has developed a battery management platform that offers remote management capabilities, allowing transportation companies to monitor important metrics such as battery status and coolant temperature. This system also automates engine operation and manages cabin temperature, providing real-time performance analysis and diagnostics to ensure that batteries remain charged and engines are kept warm. By implementing this technology, Idle Smart enables fleet operators to optimize their vehicles' performance while significantly reducing overnight idle time.

Takachar is focused on creating a network of waste management enterprises in Kenya that convert agricultural residues into eco-friendly charcoal, providing an affordable cooking fuel for low-income households. The company has developed low-cost technologies that can be locally manufactured and have been successfully tested in Kenya over the past three years. Since its inception, Takachar has assisted in establishing seven local waste-to-charcoal enterprises, some of which have achieved operational profitability. To date, Takachar has created approximately 100 jobs and sold 50 tons of eco-char. The company aims to demonstrate the long-term financial sustainability of these enterprises, with the intention of developing a franchise network in the future. Additionally, Takachar employs oxygen-lean torrefaction reactors to transform biomass into commercially viable products, helping farmers prevent the open burning of agricultural waste while providing them with opportunities to generate extra income through value-added chemicals.

EnergySage, LLC is an online marketplace based in Boston, Massachusetts, specializing in solar and clean energy technologies for homeowners, businesses, and non-profits. Founded in 2009, the company provides a platform that offers educational resources and analytical tools, helping consumers identify and compare suitable clean energy solutions, including rooftop solar, battery storage, community solar, heat pumps, and electric vehicle charging. Through its service, EnergySage guides potential buyers in requesting and evaluating competitive quotes from pre-screened installers, facilitating a convenient and cost-effective shopping experience for clean energy products and services.

Titan Advanced Energy Solutions (Titan) develops advanced battery management systems for lithium-ion batteries (LiB).Their patented ultrasound technology provides over 99% SoH/SoC accuracy over the life of the battery. The benefits of this dramatically improved accuracy are significant: at least 20% increase in charge capacity and 125% increase in battery life. The technology also provides unprecedented safety monitoring and control, real-time cell level monitoring and balancing. Suitable for automotive, ESS and consumer markets, Titan’s ultrasound ionView™ technology is priced comparably to traditional solutions, while adding significant benefits to manufacturers, integrators, producers and consumers.

Sunrun Inc. is a leading provider of residential solar energy systems in the United States, specializing in the design, development, installation, ownership, and maintenance of solar power solutions. Founded in 2007 and headquartered in San Francisco, California, the company offers a unique solar service model that allows homeowners to pay for the electricity generated by the solar systems rather than purchasing the panels outright. This approach enables customers to benefit from lower, locked-in electricity rates while Sunrun maintains and monitors the systems. Operating in twelve states, Sunrun installs solar systems at a rapid pace, averaging one installation every ten minutes. The company utilizes a direct-to-consumer marketing strategy complemented by partnerships with various solar and strategic entities. In addition to solar energy systems, Sunrun also provides battery storage solutions and sells solar products such as panels and racking. With a workforce of over 3,000 employees, Sunrun continues to lead the residential solar market by prioritizing customer savings and sustainable energy solutions.

Tesla, Inc. designs, develops, manufactures, and sells electric vehicles and energy generation and storage systems globally, with a significant presence in the United States, China, the Netherlands, and Norway. The company operates in two main segments: Automotive and Energy Generation and Storage. The Automotive segment includes a range of vehicles, such as luxury and midsize sedans, crossover SUVs, and light trucks, alongside electric powertrain components and services. Tesla markets its vehicles through company-owned showrooms and its website. The Energy Generation and Storage segment offers lithium-ion battery systems for residential and commercial use, as well as solar energy products, including solar panels and solar roofs. Additionally, Tesla provides vehicle insurance and operates a fast-charging network. Founded in 2003 and headquartered in Palo Alto, California, Tesla aims to accelerate the transition to sustainable energy and mobility.

Ameresco, Inc. provides energy efficiency solutions for facilities in North America. The company engages in the development, design, engineering, and installation of projects that reduce the energy, as well as operation and maintenance costs of governmental, educational, utility, healthcare, and other institutional, commercial, and industrial entities facilities. Its set of services includes upgrades to a facility's energy infrastructure. Ameresco provides renewable energy products and services that include the construction of small-scale plants that produce electricity, gas, heat, or cooling from renewable sources of energy; the sale of such electricity, processed landfill gas, heat, or cooling from plants that it owns; and the sale and installation of solar energy products and systems for both on-grid and off-grid applications. It distributes solar energy products and systems, such as PV panels, solar regulators, solar charge controllers, inverters, solar-powered lighting systems, solar-powered water pumps, solar panel mounting hardware, and other system components. The company was founded in 2000 and is headquartered in Framingham, Massachusetts.

National Grid is a leading energy company that operates electricity and gas transmission systems, focusing on delivering cleaner and more resilient energy solutions. As one of the largest investor-owned energy companies globally, it is dedicated to providing safe, reliable, and efficient energy services to customers and communities in both the UK and the US. National Grid plays a crucial role in connecting millions of people to essential energy resources through its regulated utility businesses, as well as its ventures in innovation. The company is actively committed to reducing greenhouse gas emissions and is shaping future energy systems by collaborating with customers, partners, and communities to address the challenges of transitioning to decarbonized and decentralized energy solutions.

NextEra Energy is a leading renewable energy company engaged in the generation of wind and solar power, as well as nuclear and natural gas energy. It operates through its regulated utility, Florida Power & Light, which is the largest rate-regulated utility in Florida, serving nearly 6 million customer accounts and owning 34 gigawatts of generation capacity. Florida Power & Light significantly contributes to NextEra's overall earnings, accounting for approximately 70% of its consolidated operating income. The company's renewable energy segment, NextEra Energy Resources, generates and sells power across the United States and Canada, boasting an additional 34 gigawatts of capacity. Through its investments in infrastructure, NextEra Energy creates thousands of high-paying jobs, positioning itself as a major player in the energy sector.

Ivys Energy Solutions is a solutions provider delivering effective engineering services and products to the global energy, renewables.

Greentown Labs, Inc. is a climate technology incubator founded in 2011 and located in Somerville, Massachusetts. The company provides co-located prototyping, office, and event spaces specifically designed for businesses in the clean technology, energy, and environmental sectors. Its mission is to foster a vibrant community of entrepreneurs by offering the necessary resources and support to help early-stage companies thrive. By creating shared warehouse spaces and facilitating collaboration, Greentown Labs aims to enable innovative solutions that address pressing climate challenges.

Tank Utility, Inc. specializes in developing software solutions for the fuel and energy sector, focusing on enhancing operational efficiency for fuel distribution companies. Founded in 2014 and based in Boston, Massachusetts, the company offers smart meters and cloud-based software that integrates wireless sensors to monitor propane levels in real time. By utilizing IoT technology and business intelligence software, Tank Utility enables fuel providers to reduce unnecessary delivery miles, thereby minimizing waste and improving customer engagement. Their products include easy-to-install wireless tank monitors and web applications that deliver real-time data on tank levels, usage, and pricing, ultimately enhancing service efficiency and customer retention. Additionally, Tank Utility provides installation and support services to ensure optimal utilization of its solutions.

EnergySage, LLC is an online marketplace based in Boston, Massachusetts, specializing in solar and clean energy technologies for homeowners, businesses, and non-profits. Founded in 2009, the company provides a platform that offers educational resources and analytical tools, helping consumers identify and compare suitable clean energy solutions, including rooftop solar, battery storage, community solar, heat pumps, and electric vehicle charging. Through its service, EnergySage guides potential buyers in requesting and evaluating competitive quotes from pre-screened installers, facilitating a convenient and cost-effective shopping experience for clean energy products and services.

Blackburn Energy, Inc. specializes in renewable energy solutions for the commercial trucking industry through its innovative product, RelGen. This technology harnesses kinetic energy from a truck's drive shaft, converting it into electricity via a custom alternator. The generated power is stored in a battery array, enabling it to supply energy to various truck subsystems including liftgates, electric auxiliary power units (APUs), and sensors for driver-assist and autonomous features. Blackburn Energy's solutions aim to reduce reliance on engine idling, thus cutting fuel and maintenance costs while minimizing carbon emissions. The company's products are particularly beneficial for long-haul drivers, providing essential power for climate control and operational needs during rest periods. Blackburn Energy was founded in 2008 and is headquartered in Amesbury, Massachusetts.

Xilectric specializes in the development of energy and environmental technologies, particularly in the field of lithium-ion battery innovation. The company manufactures rechargeable batteries designed to enhance abuse tolerance, enabling them to withstand high voltage, elevated temperatures, and rapid charging. Xilectric also offers a novel class of low-cost rechargeable batteries based on nickel-iron technology, which minimizes electrolyte degradation and ensures reliable performance in extreme weather conditions. This advancement provides electric vehicle manufacturers with durable and dependable battery solutions, addressing the growing demand for efficient energy storage in the automotive sector.

Greentown Labs, Inc. is a climate technology incubator founded in 2011 and located in Somerville, Massachusetts. The company provides co-located prototyping, office, and event spaces specifically designed for businesses in the clean technology, energy, and environmental sectors. Its mission is to foster a vibrant community of entrepreneurs by offering the necessary resources and support to help early-stage companies thrive. By creating shared warehouse spaces and facilitating collaboration, Greentown Labs aims to enable innovative solutions that address pressing climate challenges.

Nuvera Fuel Cells, LLC specializes in manufacturing heavy-duty, zero-emissions engines tailored for mobility applications. The company operates facilities in both the United States and Europe, focusing on clean and efficient fuel cell technology. Nuvera's products serve a diverse range of markets, including on- and off-road vehicles, industrial equipment, port and maritime applications, as well as stationary and portable power solutions. By addressing the demanding requirements of these sectors, Nuvera enables its clients to meet global commercial standards for sustainability and efficiency.

Greentown Labs, Inc. is a climate technology incubator founded in 2011 and located in Somerville, Massachusetts. The company provides co-located prototyping, office, and event spaces specifically designed for businesses in the clean technology, energy, and environmental sectors. Its mission is to foster a vibrant community of entrepreneurs by offering the necessary resources and support to help early-stage companies thrive. By creating shared warehouse spaces and facilitating collaboration, Greentown Labs aims to enable innovative solutions that address pressing climate challenges.

Spruce Power is a prominent owner and operator of distributed solar energy assets in the United States, focusing on making renewable energy accessible to homeowners. The company provides subscription-based services to approximately 75,000 home solar systems, allowing customers to benefit from solar energy without the need for upfront costs. Its primary revenue streams include selling electricity generated by these systems directly to homeowners, entering third-party contracts to sell solar renewable energy credits, and servicing agreements related to these solar energy systems. By simplifying the adoption of solar energy, Spruce Power plays a significant role in promoting sustainable energy solutions.

Ambri, Inc. is a company based in Marlborough, Massachusetts, focused on developing innovative electricity storage solutions through its liquid metal battery technology. Founded in 2010 and originally known as Liquid Metal Battery Corporation, Ambri aims to revolutionize grid-scale power storage by offering batteries that are low-cost, long-lasting, and capable of storing significant amounts of energy. These batteries are particularly suited for applications in renewable energy systems and grid stabilization. Ambri's technology is designed to enhance the reliability and efficiency of energy storage, with systems that can tolerate short circuits and other operational challenges, making them a robust choice for grid operators.

Bandgap Engineering specializes in the development of advanced nanostructuring technologies for silicon, focusing on applications in high-efficiency photovoltaic systems and lithium-ion batteries. The company aims to enhance the performance of silicon-based solar cells and battery technologies by employing innovative methods that lower production costs and improve efficiency. By engineering these nanostructured materials, Bandgap Engineering seeks to contribute to the advancement of solar energy solutions and the broader adoption of renewable energy technologies, ultimately supporting the goal of making solar energy competitive with traditional energy sources.

Vecarius is an energy efficiency in mass markets with broad societal impact, particularly in markets involving energy-intensive mobile or portable applications. They offer power management systems, thermal management systems, power electronics, advanced heat exchangers, and waste heat recovery.

Thermeleon offers a greenhouse screening system with the added capability of passively cooling and heating the greenhouse. It is a next-generation screen system with integrated thermal energy storage for horticulture. During the day, it will absorb the excess energy, which will be released at night when there is high energy demand. As a result, both the gas costs and CO2 emissions are reduced significantly.

Takachar is focused on creating a network of waste management enterprises in Kenya that convert agricultural residues into eco-friendly charcoal, providing an affordable cooking fuel for low-income households. The company has developed low-cost technologies that can be locally manufactured and have been successfully tested in Kenya over the past three years. Since its inception, Takachar has assisted in establishing seven local waste-to-charcoal enterprises, some of which have achieved operational profitability. To date, Takachar has created approximately 100 jobs and sold 50 tons of eco-char. The company aims to demonstrate the long-term financial sustainability of these enterprises, with the intention of developing a franchise network in the future. Additionally, Takachar employs oxygen-lean torrefaction reactors to transform biomass into commercially viable products, helping farmers prevent the open burning of agricultural waste while providing them with opportunities to generate extra income through value-added chemicals.

SolidEnergy Systems Corp. develops and manufactures rechargeable lithium metal batteries primarily for applications in drones, wearables, smartphones, and electric vehicles. Founded in 2012 and based in Woburn, Massachusetts, the company focuses on producing high-performance lithium metal batteries and supplying essential materials, such as anodes and electrolytes, to major lithium-ion cell manufacturers. These materials can be integrated into existing manufacturing processes, allowing for scalability without significant infrastructure investments. SolidEnergy's pilot-scale production caters to prototype demonstrations and specialized aerospace markets, while its future growth is aimed at mainstream sectors like consumer electronics and electric vehicles. Additionally, the company is involved in developing AI-powered safety algorithms and recycling solutions, positioning itself as an integrated battery manufacturer with a commitment to innovation and sustainability.

WindPole sells actual hub height wind resource data that solves two problems: 1) historical wind data that de-risks and improves finance terms for wind power development projects, and 2) real-time data based wind forecasting that improves operational effectiveness for utilities, grid operators, wind farm operators, and power traders. WindPole installs weather monitoring sensors and systems on existing narrow faced, 80+ meters (hub height), broadcast towers. Each tower is polled every five minutes to compile real-time wind resource data. WindPole’s clients include five of the top ten wind developers, grid operators, and industry analysts.