S4 Energy designs, builds, and operates large-scale battery systems that make renewable energy reliable and available when it’s needed most. Our storage solutions stabilise the grid, reduce CO₂ emissions, and help Europe move faster toward a carbon-neutral future. From the Netherlands to Germany and the UK, we’re building the flexible backbone of tomorrow’s energy system.
Our purpose
The challenge of the energy transition is no longer generation, it’s timing.
Renewables produce more electricity than ever before, but not always when demand is high.
Our battery systems bridge that gap: storing energy when the sun shines and the wind blows and releasing it when the grid needs support. That’s how we turn renewable power into dependable power.