Eneco and Mitsubishi Corporation (MC) constructed Europe’s largest battery, known as EnspireME, in Germany. With this battery, they can deliver reserve capacity to the European power grid. Additionally, both parties are currently investigating the option of storing surplus energy produced by local wind farms.
Germany’s energy transition has made it a leader in sustainable energy production; a growing number of wind turbines and solar panels are producing energy that is slowly replacing the supply generated by the country’s existing fossil fuel-based power plants. These existing power plants still have a role to play, however: They keep the electrical grid balanced by providing reserve capacity. The new battery system can take over this role as primary reserve, offering a sustainable alternative to the reserve capacity currently provided by coal and gas power plants.
The close proximity of an electrical substation allows the battery to combat the loss of energy – known as wattless power – in the substation. The battery will initially be used in the primary reserve market, where grid operators can purchase the reserve capacity they need to guarantee the required 50-hertz frequency in the power grid.