Proximity to the house connection
The backup system must be installed close to the house connection as this helps to minimize the installation cost. In single-phase systems (System S), it must be connected to the same line conductor as the PV plant as otherwise the PV inverter will be unable to feed in when in backup mode.
For comprehensive information on the installation, see the Sunny Backup installation manual. If you do not have the manual available, you can download it from the download section of our webiste www.sma.de.