Most of the electricity generated by a solar system is consumed by the user. There may be times however, when generation exceeds consumption, and a limited amount of power can then be fed into the municipal grid.

The City of Cape Town allows for users to be credited for excess electricity fed back into the grid, through a formal application process, for the installation of a Small-Scale Embedded Generation System (SSEG). The Western Cape Government (WCG) is focused on ensuring a supportive regulatory environment for SSEG, across municipalities. Many municipalities already have the rules and tariffs in place for this, and the remaining municipalities are being supported by the WCG and GreenCape.