Energy Efficiency companies

The Center for Energy and Environment is a Minnesota-based nonprofit that conducts energy research and deploys clean energy and efficiency solutions for residen…

IGS Energy is a leading independent energy retailer providing electricity, natural gas, solar, and energy efficiency solutions to customers in the United States…

Key Capture Energy is a US developer, owner and operator of utility-scale battery energy storage systems, with over 620 MW operating and a pipeline exceeding 8,…

SPAN develops AI-powered smart electrical panels and home energy software that let homeowners monitor and control circuits and integrate solar, battery storage…

Constellation Energy operates 55 GW of nuclear, gas, geothermal, hydro, wind and solar capacity and supplies electricity and natural gas to commercial and retai…

Nautilus Solar Energy develops, builds and operates community solar farms that residential and commercial customers subscribe to for local clean energy without…

Octopus Energy Group supplies green energy to over 10 million homes globally and licenses its Kraken technology platform to utilities for customer account manag…

Ameresco develops, constructs and operates energy infrastructure solutions spanning efficiency, renewables, storage, microgrids and EV charging for public and p…

Form Energy develops iron-air battery systems for multi-day grid storage and manufactures them at high volume in West Virginia.

Sunrun is America's leading residential solar and battery storage company, offering homeowners solar energy with little to no money down across the United State…

Sungrow develops power conversion technology for solar, wind, storage, EV charging and hydrogen, and builds PV inverters and the iSolarCloud energy management p…

esVolta develops, owns and operates utility-scale battery energy storage projects across their full lifecycle in the United States, including 1.4 GWh of operati…

X-energy develops Generation IV high-temperature gas-cooled nuclear reactors and the TRISO fuel designed to power them for applications in energy and space expl…

Fluence delivers intelligent energy storage systems and optimization, bidding and asset performance software for renewables and grid operators in nearly 50 mark…

Voltus operates a distributed energy platform that connects distributed energy resources to energy markets across the US and Canada, paying users to shift elect…