Germany's first Tesla Megapack goes into test operation at our site

At LLEC, we have recently put the long-planned high-energy battery system into test operation at our campus. Weighing approximately 24 tons, with a maximum power of 595 kW and a usable capacity of 2,616 kWh, the Tesla Megapack is the first stationary battery system of its kind in Germany.

The Tesla Megapack stores energy when grid demand is low and feeds energy back into the grid when demand is high. The battery system is integrated into the medium-voltage grid for operational optimization. The LLEC's cloud-based control platform manages load flows between generated energy from photovoltaics, demand usage, and grid requirements, thus relieving the power grid and minimizing electricity costs. In addition, part of the battery capacity is reserved for the nearby pubils laboratory as part of the LLEC subproject "JuPilot".

In addition to stabilizing the energy network, the LLEC project team plans to experimentally perform different load profiles and mimic them with model simulations down to the cell level. Using a digital twin, researchers will gain insight into the internal components of the high-energy battery, which will allow them to study long-term properties of the battery system and cell aging under different types of use. The investigation of different uses of the battery system should also provide information on how battery systems can be further optimized in the future.

More detailed information on battery research in the LLEC can be found here.