German Red Cross Retirement Home Jungfernkopf

Secure power supply with Sunny Backup 5000

The German Red Cross in Kassel relies on solar power: the retirement home Jungfernkopf with 77 residents provides space for five common rooms that are grouped around four inner courtyards. The photovoltaic plant with a total power output of 57.6 kWp on the roof of the retirement home ensures a environmentally friendly solar power supply.

Thanks to the SMA Sunny Backup-System, the retirement home is optimally protected against power outage. In the event of a grid failure, the intelligent system automatically switches to Backup operation within only 20 ms: the main consumers will continue to be supplied from the battery or parts of the solar power plant.

Kassel, Germany

November 2008

Nominal power
57,6 kWp

Sunny Backup 5000
Sunny Mini Central 10000TL

Planning and realization
Solartechnik Stiens GmbH & Co. KG, Kaufungen


SMA America, LLC
6020 West Oaks Blvd, Ste 300
Rocklin, CA 95765 U.S.A.

Tel. +1 916 625 0870
Fax +1 916 625 0871
Toll Free 1-888-4SMAUSA
Service Line phone number (Toll free):

+1 877-697-6283
+1 877-MY-SMATech

Our Service Line team is available to provide competent advice Monday to Friday from 6:00 a.m. to 5:00 p.m. Pacific time.