Net Metering and Feed-in Tariffs in South Africa

One of the most frequently asked questions from South African homeowners considering solar is whether they can sell excess electricity back to the grid. The answer is increasingly yes, though the landscape is evolving and varies significantly by municipality.

Small-Scale Embedded Generation (SSEG) regulations govern the connection of solar systems to the municipal grid in South Africa. Many municipalities now have established SSEG frameworks that allow homeowners and businesses with grid-tied solar systems to feed excess energy back into the grid and receive credit on their electricity accounts.

The City of Cape Town was an early pioneer, offering feed-in tariffs to residential and commercial solar producers. Johannesburg, Tshwane, eThekwini, and several other metros have followed with their own programs. The tariff rates vary by municipality but typically range from R0.50 to R1.50 per kWh — lower than what you pay for grid electricity, but still a valuable way to offset your bill.

To participate in a feed-in program, your solar system must be installed by a qualified installer and registered with your municipality. You will need a bidirectional meter that can measure both consumption from and export to the grid. Most municipalities require a formal application and inspection before activating the feed-in arrangement.

It is important to understand that net metering in South Africa is not typically a one-to-one credit system as seen in some other countries. Most municipalities pay a lower rate for exported electricity than they charge for consumed electricity. This means the most financially optimal approach is to size your system to match your daytime consumption as closely as possible, minimising excess export.

Despite the lower export rates, feed-in tariffs still improve the economics of solar. Any excess production that would otherwise be wasted instead generates a return, shortening your payback period and increasing overall savings.