LEW Rain am Lech

24. June 2023

juniz dot element

The economic model of this battery storage system represents a very interesting example application for grid service (in this case primary control power) and hybrid application at the same time. A run-of-river power plant has already been marketed in the past as a primary control power plant, but this has increasingly led to problems, as the control speed is very limited and many control interventions also severely impair the service life of the turbines. These disadvantages could be optimally compensated for by the combination with a battery storage system. The energy management system was programmed specifically for this project and adapted to the existing control system of the hydropower plant so that the highest possible output could be prequalified for PRL operation.


1,5 MW


1,6 MWh

Voltage level

20 kV


Samsung SDI


1 Container with battery racks