ENGIE just signed Europe’s largest fixed‑price virtual flexibility purchase agreement (vFPA) powered by distributed battery systems.

Starting in 2027, ENGIE will tap into 100 MW of “virtual” battery capacity across Germany. Instead of one big battery site, these assets come from many smaller battery energy storage systems (BESS) aggregated through Return. Think of it as a giant, coordinated battery made up of hundreds of smaller ones working together.

Why does this matter? Because as renewable generation grows, so does the need for flexible resources that can step in quickly when the grid needs balancing. Batteries excel at this – they can absorb excess renewable energy and instantly discharge it when demand spikes or when solar/wind output dips. That stability keeps markets efficient and supports cleaner power.

Through this agreement, ENGIE can optimize battery flexibility across both wholesale power markets and ancillary services, strengthening long‑term reliability for customers and advancing its 24/7 green power solutions for customers.