Various system components are required to feed solar PV modules into a public power grid. These components ensure the conversion and recording of the solar PV power as well as the safety of the system. The ET 250.01 test module contains these components and is designed as an extension to the ET 250 test bench. Via an electrical connection to the ET 250, the generated direct current is transmitted from the photovoltaic modules to the socket of the ET 250.01.