Steel storage to accelerate the energy transition
With its innovative high-temperature storage system, Berlin startup Lumen enables regional wind and solar energy to be used as heat and electricity. The steel storage block is now being tested in commercial use for the very first time.6 days ago Barbara Rusch
Lumenion’s high-temperature storage system stores generation peaks from regionally generated wind and solar energy at up to 650° Celsius, whereby an electric heater is used to heat a steel storage core. Thanks to the high temperatures, when required, the stored energy can be converted back into electricity by means of a turbine unit or be used entirely for heating or hot water.
Following a successful test phase with a 450 kWh prototype on the campus of the University of Applied Sciences (HTW) in Oberschöneweide, Berlin, Lumenion has now constructed a steel storage block in a residential area belonging to Berlin housing society Gewobag. The unit, with a storage volume of 2.4 MWh, will be integrated in the district power and local heating supply system operated by Vattenfall Energy Solutions in the Tegel-Süd housing estate. “This is an important milestone for our technology, but also for the speedy and cost-efficient decarbonization of our energy system,” says Lumenion founder Alexander Voigt. “Our steel storage technology enables clean energy to be used with a time lag – both as heat and as electricity. We’re already planning systems with 40 and even 500 MWh.”
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