The utility sells the system dubbed 'E.ON Aura' together with an app, and on demand also with an electricity tariff that provides power 100% from renewable sources during the hours when neither the sun, nor storage, can provide power.
"With a storage capacity of 4.4kWh, E.ON Aura can meet the entire electricity needs of a three- to four-person family during the evening and night hours," says Robert Hienz, managing director of E.ON's
