Welcome to the Green Stock News brief for Wednesday, December 18th. Here are today’s top headlines:

Oklo (NYSE: OKLO) and Switch have signed a landmark Master Power Agreement to deploy 12 gigawatts of advanced nuclear power projects through 2044, marking one of the largest corporate clean energy deals ever. This partnership will provide sustainable power for Switch’s AI-driven data centers while accelerating Oklo’s nuclear technology deployment and scaling capabilities.

Vistra (NYSE: VST) has announced that two new utility-scale solar projects in Illinois are now online and that the Baldwin Power Plant will continue operations until 2027. The Baldwin site now includes a $135-million, 68-MW solar facility with energy storage, producing 140,000 MWh of zero-carbon electricity annually, showcasing Vistra's strategy to combine thermal, solar, and storage technologies.

Eos Energy (NASDAQ: EOSE) has secured a 400 MWh storage order with International Electric Power for a project at Camp Pendleton, partially funded by California’s Long Duration Energy Storage Program. Powered by Eos Z3™ Cubes, the project highlights Eos’ commitment to grid resiliency and sustainable energy, leveraging its advanced U.S.-based manufacturing and supply chain.

SunHydrogen (OTC: HYSR) has successfully demonstrated its green hydrogen production technology, achieving clean hydrogen generation even in subfreezing temperatures. This milestone follows the integration of CTF Solar’s solar cells into its core technology, enabling faster market entry with an efficient, economical solar-to-hydrogen process.