StecaGrid SEM

Smart Energy Manager for coolcept, coolcept-120, coolcept-x, StecaGrid 8000+ 3ph and 10000+ 3ph
The feed-in management solution
In Germany, photovoltaic systems require feed-in management. To this end, ripple control receivers of the respective grid operators are installed. These ripple control receivers transmit a reduction signal from the grid operator whenever the system has to be throttled due to grid overloads.
StecaGrid SEM is the easiest way to connect your StecaGrid inverter to the ripple control receiver. StecaGrid SEM evaluates the relay outputs of the ripple control receiver and transmits the signals via the Steca solar bus (or Steca RS485 bus) to the connected inverters.
SEM stands for Smart Energy Manager
Easiest installation
StecaGrid SEM can be installed in the switching cabinet right next to the ripple control receiver. The casing features a dimensioning typical for switching cabinets and can be mounted onto a top-hat rail. Its width is 4 HP. Direct power supply at 230 V. A mains adapter plug or an external direct current power supply are not required.
Easily accessible service interface
All connected StecaGrid inverters can be accessed via a USB interface on the StecaGrid SEM. Connection to a PC is possible via a standard USB cable. The interface is on the front side of the casing – the cover does not need to be removed in the switching cabinet.
Other functions
As of firmware version 3.x, StecaGrid SEM offers additional functions: data can be read from an energy meter via a S0 interface. This allows for a distinction between the share of PV energy used at home and that fed into the grid. With this measurement data, StecaGrid SEM monitors the house connection and ensures that no more than 70% of the system‘s output is fed into the grid. If required, it accurately reduces the output of the connected inverters.