Callisto I BESS and Substation

The Callisto I Energy Center is a 200MW/400MWh battery energy storage system located in central Houston, five miles from the Medical Center and ten miles from the Houston Ship Channel at the site of a former HL&P H.O. Clarke fossil fuel power plant. Being Houston’s first grid-scale battery energy storage system, this new facility will significantly increase Houston’s supply of reliable, zero emissions power as it faces record demand increases. The project achieved commercial operation in August 2024. “The announcement of Jupiter Power’s Callisto I Energy Storage project is significant and exciting for the region, as it’s the first large-scale, transmission-connected energy storage project in the City of Houston. This critical project will help address peak power demand and is another great example of our region's leadership in scaling and deploying impactful solutions for an all the above energy future,” said Jane Stricker, Greater Houston Partnership, Senior Vice President and Houston Energy Transition Initiative (HETI) Executive Director.


https://www.houston.org/news/jupiter-power-announces-commercial-operations-400mwh-dispatchable-power-houston-and-continued