Currently France's biggest electrochemical energy storage plant — although it looks set to be overtaken for that crown soon — energy major Total was contracted by grid operator RTE to deliver the battery energy storage system (BESS) and it was announced as in operation earlier this year. The BESS comprises 11x 2.3MWh lithium-ion container solutions made by Total subsidiary Saft. AutoGrid's flexible energy management platform suite will be used to run the battery system's frequency regulation applications, responding to grid signals from RTE to help balance the system in under 500 milliseconds, to participate in the European Frequency Containment Reserve (FCR) market. Total's venture capital arm is a minority investor in AutoGrid, which was recently tapped by US residential solar and storage installer Sunrun to optimise a fleet of its assets.