Big Battery for Western Germany

March 2021

German business newspaper Handelsblatt has reported that energy company Steag is planning to construct a gigantic battery for energy storage in a decommissioned coalmine in the west of the country.

The facility is planned to go onto the grid in mid-2022 and will initially have a capacity of 250 megawatts. Currently, the largest battery in the world is Tesla’s 300 MW one in California, but the Steag facility is potentially expandable to 500 MW.

“Batteries play a crucial role in the transition to clean energy in a wide variety of applications, Steag battery expert Christian Karalis told Handelsblatt. “As we have seen, the grid is always encountering critical situations, and battery storage facilities, spread over the entire country, help improve energy provision.”

Batteries, big and small, are a booming business in Germany, especially as the country goes over to clean energy sources like wind and solar that don’t deliver constant amounts of power. According to industry association BVES, turnover in the battery storage sector in Germany should increase from EUR 6.3 billion to EUR 7.6 billion between 2019 and 2021 (estimated). Revenue in the home battery market is set from EUR 600 million to ER 1.3 billion in that period.

Energy storage battery facility in Schwerin © WEMAG