Breakthrough Energy Ventures

HyperHeat develops advanced electric heating solutions capable of reaching temperatures up to 2000°C. Utilizing renewable electricity, HyperHeat provides an efficient alternative to fossil fuels for industries like steel, cement, and chemicals. With a high efficiency rate and scalability, the technology offers significant CO2 emission reductions.

RedoxBlox develops thermochemical energy storage technology to decarbonize high-temperature industrial thermal processing and provide long-duration energy storage for the grid. The technology enables continuous high-temperature heat while integrating with existing infrastructure to replace natural gas combustion, supporting electrification and renewables deployment. It reduces carbon dioxide and nitrogen oxides emissions, enhances safety and resilience, and aims to lower total capital cost for industrial processors and power plant operators. By delivering scalable, long-duration heat, RedoxBlox helps industries leverage renewable energy and move toward low-emission operations.

TS Conductor specializes in advanced electrical transmission conductors. Utilizing a carbon-fiber-composite core instead of steel, their products are lighter, stronger, and more efficient, carrying higher current with reduced energy loss.

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

Fourth Power specializes in utility-scale thermal battery storage solutions. It converts renewable energy into a reliable on-demand power source, addressing grid needs while facilitating the transition to decarbonized infrastructure.

Malta is a developer of industrial-grade, grid-scale electro-thermal energy storage technology. The system captures energy from wind, solar, and fossil generators, converts electrical energy into thermal energy by creating a temperature difference, stores heat in molten salt, and reconverts it to electricity with a heat engine to be dispatched to the grid when needed. The technology enables long-duration energy storage, helping mitigate wind and solar curtailment and improve the matching of generation and demand, addressing bottlenecks in distribution and transmission and supporting affordable, reliable electricity on demand. Founded in 2018 and based in Cambridge, Massachusetts, Malta's solution targets grid operators and energy players seeking to balance supply and demand with grid-scale storage.

CubicPV is a solar manufacturing company that focuses on producing wafers and tandem modules using advanced silicon and perovskite technologies. The company develops innovative semiconductor combinations for tandem modules, which enhance energy harvesting by utilizing two different light absorbers, thus improving efficiency across a broader spectrum of sunlight. This technology aims to reduce the cost of solar electricity to be competitive with conventional energy sources, such as coal. By manufacturing silicon wafers directly from the silicon melt, CubicPV streamlines the production process, eliminating several steps and effectively doubling the yield. This approach not only lowers the cost of clean electricity but also minimizes the carbon footprint associated with solar panel production, supporting the growing global demand for sustainable energy solutions.

Xcel Energy is a leading electric and natural gas utility company serving approximately 6 million customers across eight states. It generates power through diverse sources including coal, nuclear, natural gas, hydro, solar, wind, and biomass. The company is committed to reducing carbon emissions and aims to supply more than half of its electricity from renewable sources by 2030.

Electra is a company dedicated to revolutionizing iron and steel production by significantly reducing carbon dioxide emissions. It specializes in alternative steelmaking technology that employs innovative electrochemical and hydrometallurgical processes. By electrifying and decarbonizing the steelmaking process, Electra enables the production of low-carbon clean iron from various ores and renewable energy sources. This approach not only minimizes the environmental impact associated with traditional steel production but also helps companies lower energy intensity and costs, promoting sustainability within the industry.

Turntide Technologies specializes in sustainable technologies that reduce energy consumption and operating costs in buildings, agriculture, and electric transport. It has developed an efficient electric motor system based on switched reluctance technology, managed by cloud software and connected to precise controls via IoT. The company aims to eliminate the roughly 25% of global electricity wasted by legacy motors, accelerating the transition from fossil fuels toward renewable energy. Founded in 2013 and headquartered in Sunnyvale, California, Turntide's solutions target improvements in space conditioning, maintenance, and refrigeration energy use.

SparkMeter develops smart electricity metering systems and grid management software for underserved markets. Its products include residential and commercial meters, along with software solutions that enhance grid efficiency, enable prepaid billing, and facilitate remote monitoring. Founded in 2012, SparkMeter operates from Washington D.C. and Nairobi, Kenya.

Antora Energy specializes in delivering reliable, zero-carbon industrial heat and power solutions to heavy industries. The company's core technology involves thermal energy storage that absorbs excess solar and wind electricity, converting it into usable heat for industrial processes.

TS Conductor specializes in advanced electrical transmission conductors. Utilizing a carbon-fiber-composite core instead of steel, their products are lighter, stronger, and more efficient, carrying higher current with reduced energy loss.

Founded in 2005, Natel Energy designs, builds, and sells restoration hydro turbines for generating renewable electricity from moving water across drops. Its turbines can be installed in various settings, including retrofit of existing turbines, non-power dams, irrigation canals, and new stream reach developments. The company also offers digital services like HydroForecast, which uses satellite imagery and machine learning for hydrologic modeling and power generation forecasting.

Turntide Technologies specializes in sustainable technologies that reduce energy consumption and operating costs in buildings, agriculture, and electric transport. It has developed an efficient electric motor system based on switched reluctance technology, managed by cloud software and connected to precise controls via IoT. The company aims to eliminate the roughly 25% of global electricity wasted by legacy motors, accelerating the transition from fossil fuels toward renewable energy. Founded in 2013 and headquartered in Sunnyvale, California, Turntide's solutions target improvements in space conditioning, maintenance, and refrigeration energy use.

CubicPV is a solar manufacturing company that focuses on producing wafers and tandem modules using advanced silicon and perovskite technologies. The company develops innovative semiconductor combinations for tandem modules, which enhance energy harvesting by utilizing two different light absorbers, thus improving efficiency across a broader spectrum of sunlight. This technology aims to reduce the cost of solar electricity to be competitive with conventional energy sources, such as coal. By manufacturing silicon wafers directly from the silicon melt, CubicPV streamlines the production process, eliminating several steps and effectively doubling the yield. This approach not only lowers the cost of clean electricity but also minimizes the carbon footprint associated with solar panel production, supporting the growing global demand for sustainable energy solutions.

Ecocem Ireland is a cement manufacturing company that specializes in producing low-carbon cementitious products, specifically Ground Granulated Blast Furnace Slag (GGBS) and CEM III-A technology. Their eco-friendly cement is created using slag from steel furnaces through an advanced process that significantly reduces carbon emissions compared to traditional methods. This innovation allows concrete companies to decrease environmental pollutants while conserving electricity and natural resources. In addition to their manufacturing capabilities, Ecocem Ireland also offers architectural design services to their clients, who can reach the company through phone, email, and online applications.

Turntide Technologies specializes in sustainable technologies that reduce energy consumption and operating costs in buildings, agriculture, and electric transport. It has developed an efficient electric motor system based on switched reluctance technology, managed by cloud software and connected to precise controls via IoT. The company aims to eliminate the roughly 25% of global electricity wasted by legacy motors, accelerating the transition from fossil fuels toward renewable energy. Founded in 2013 and headquartered in Sunnyvale, California, Turntide's solutions target improvements in space conditioning, maintenance, and refrigeration energy use.

Malta is a developer of industrial-grade, grid-scale electro-thermal energy storage technology. The system captures energy from wind, solar, and fossil generators, converts electrical energy into thermal energy by creating a temperature difference, stores heat in molten salt, and reconverts it to electricity with a heat engine to be dispatched to the grid when needed. The technology enables long-duration energy storage, helping mitigate wind and solar curtailment and improve the matching of generation and demand, addressing bottlenecks in distribution and transmission and supporting affordable, reliable electricity on demand. Founded in 2018 and based in Cambridge, Massachusetts, Malta's solution targets grid operators and energy players seeking to balance supply and demand with grid-scale storage.

Blip Energy develops smart battery systems designed to mitigate peak demand on the power grid. Their plug-and-play hardware optimizes energy costs for users while reducing operational expenses for utilities, with no permitting or installation barriers.

SparkMeter develops smart electricity metering systems and grid management software for underserved markets. Its products include residential and commercial meters, along with software solutions that enhance grid efficiency, enable prepaid billing, and facilitate remote monitoring. Founded in 2012, SparkMeter operates from Washington D.C. and Nairobi, Kenya.

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.

Founded in 2005, Natel Energy designs, builds, and sells restoration hydro turbines for generating renewable electricity from moving water across drops. Its turbines can be installed in various settings, including retrofit of existing turbines, non-power dams, irrigation canals, and new stream reach developments. The company also offers digital services like HydroForecast, which uses satellite imagery and machine learning for hydrologic modeling and power generation forecasting.

Malta is a developer of industrial-grade, grid-scale electro-thermal energy storage technology. The system captures energy from wind, solar, and fossil generators, converts electrical energy into thermal energy by creating a temperature difference, stores heat in molten salt, and reconverts it to electricity with a heat engine to be dispatched to the grid when needed. The technology enables long-duration energy storage, helping mitigate wind and solar curtailment and improve the matching of generation and demand, addressing bottlenecks in distribution and transmission and supporting affordable, reliable electricity on demand. Founded in 2018 and based in Cambridge, Massachusetts, Malta's solution targets grid operators and energy players seeking to balance supply and demand with grid-scale storage.