System Topology

The Sunny Home Manager must be installed behind the meter and the input fuse of the grid operator and in front of the first distributor in the house. SMA recommends using the Sunny Home Manager for measuring at the point of interconnection. As a bidirectional device, the Sunny Home Manager measures both the grid-supplied power and the grid feed-in at the point of interconnection. For the function Limiting of the active power feed-in, at least one measurement at the grid-connection point is required.

The Sunny Home Manager receives the measured data for PV generation, grid feed-in, and grid-supplied power via the integrated measuring device directly from the connected SMA inverters or via a separate, optionally connected SMA Energy Meter.
If third-party inverters are installed in the system ( > Operation of a PV system with third-party inverters), an energy meter must measure the PV generation of all inverters. The Sunny Home Manager adopts the data and processes it. A maximum of one PV generation meter may be used.

Operation of the PV system with SMA inverters or with optional third-party inverters by using an SMA Energy Meter

Topology showing SMA storage solutions and various controlled loads (general example)