Each of the following criteria must be fulfilled to be relevant according to §9 EEG "Solar peak amendment" (Solarspitzengesetz):

For systems that meet both criteria, §9 EEG is automatically enabled and cannot be disabled. The operator (homeowner) must ensure that the grid feed-in is limited to 60% of the PV installation's peak power (PV module capacity), unless an SMGW + Steuerbox is installed and successfully tested for this household.

The configuration steps below are required for §9 EEG to function correctly. If either the EMS (configured via the commissioning wizard) or the inverter is not configured as described, §9 EEG remains active but will not enforce the feed-in limitation. The system will be non-compliant.

For each supported inverter, open its commissioning article and follow the Country-specific configurations → Germany section.

Inverters controlled via GCP Limit
The system is limited by the inverter using the grid connection point as reference; EMS is steering all other controllable assets accordingly

Inverters controlled via PV Limit
The system is controlled by the EMS, which limits the inverter's PV output (DC side).

Multiple inverters that require §9 EEG can be combined. However, only one of the inverters may have a battery; multiple batteries are not supported.

If multiple GCP Limit inverters are combined, each needs a meter at the GCP.