Energy Storage Startups

A materials company focused on nanotechnology for renewable energy and clean technology applications, manufacturing various classes of materials to address problems in those fields.

12 investors

Prometheus uses solar and wind power to capture CO2 and water from the air and convert them into zero net carbon electrofuels—gasoline, diesel, and jet fuel that work in existing engines without modification. The company targets transportation fuel markets, including aviation, with price-competitive drop-in fuels.

7 investors

Posh builds rapidly deployable battery storage and on-site power generation systems for commercial, industrial, and data-center customers, paired with intelligent energy management software. The company serves businesses that require fast power deployment when grid infrastructure cannot keep pace with demand.

6 investors

GBatteries develops smart control algorithms that allow lithium-ion batteries to charge very quickly while preserving long cycle life. The company works in the energy storage and battery technology space.

4 investors

inBalance uses machine learning to predict electricity prices, helping energy storage operators, EV charging networks, and similar businesses optimize revenue.

4 investors

Phoenix Hydrogen operates a marketplace platform for buying and selling hydrogen as a commodity, targeting utilities and industrial customers in the emerging hydrogen infrastructure sector.

4 investors

Spark provides AI-powered permitting and zoning intelligence for renewable energy, battery storage, and data center developers to accelerate site selection and reduce development risk. The platform analyzes zoning ordinances, permitting requirements, and community sentiment across U.S. jurisdictions.

4 investors

Airthium develops high-temperature Stirling-engine-based heat pumps that replace gas-fired steam boilers for food and mining companies, producing more heat per unit of electricity at temperatures up to 1000°F. It plans to use the same proprietary engine for long-duration seasonal energy storage as an alternative to lithium-ion batteries and fossil-fired power plants.

3 investors

OneKey helps site developers and operators identify optimal locations for building electric vehicle charging stations based on profitability analysis.

3 investors

NODI is a plug-in home battery that stores cheap or surplus solar electricity and discharges it during expensive peak periods, with automatic backup power during grid outages. Aimed at homeowners and renters, the device installs without an electrician or rewiring and is designed to sit visibly in living spaces like furniture.

2 investors

Micora produces palletized, shippable solar microgrid systems that can be assembled without specialized labor, autonomously building 100kWp of capacity per day and scaling to utility-scale megawatt deployments. It targets customers with large, fast-growing power needs such as data centers, advanced manufacturing, and electrification projects.

1 investor

Viridi manufactures lithium-ion energy storage systems designed for installation in occupied spaces and around critical equipment without requiring additional construction or grid upgrades. The company serves customers seeking compliant, scalable distributed energy storage solutions in the United States.

1 investor

Vista Power installs and manages battery energy storage and solar panels on commercial, industrial, and multifamily properties, with customers paying a portion of realized energy cost savings. The company handles design, installation, operations, and maintenance to help property owners reduce expenses and achieve energy resilience.

1 investor