Especially tenants who do not have space for a larger solar panel system can generate their own electricity from solar energy with a photovoltaic module on the balcony. The Berlin SolarPlus subsidy program is being expanded for this purpose, as the Senate Department for Economic Affairs announced on Wednesday. Starting Friday (Feb. 10), it will be possible to submit applications for a grant of up to 500 euros for the purchase of a so-called plug-in solar device. A total of seven million euros is available for this purpose.