Utility interaction management for large-scale PV plants

With the Power Reducer Box, SMA provides the solution for large-scale PV systems which are obliged to engage in utility interaction management: It enables the grid operator to limit the system's power using remote control. It achieves this by translating the nominal values transmitted via radio ripple control receiver into control commands for the Sunny WebBox, which forwards them to the inverters. During this process, each change of status is logged twice: once in the Power Reducer Box and once in the Sunny WebBox. If required, the Sunny WebBox automatically transmits the data to the Sunny Portal – thus, the system operator is immediately informed of the utility operator's specifications.