Selling Solar Back to the Grid in South Africa: SSEG Registration Explained

South Africa is the market where "does my country have net metering?" has the least useful answer, because the honest response is: it depends on your municipality.

There is no national scheme. Your rights, your tariff and whether you may export at all are determined by whoever supplies your electricity - Eskom directly, or one of well over a hundred municipal distributors.

Municipal tariffs and SSEG rules change annually and vary enormously. Confirm with your own supplier before installing.

SSEG: the category you fall into

Rooftop solar that connects to the grid is a Small Scale Embedded Generator (SSEG). Registration is the mechanism through which everything else flows.

Two things are worth separating:

Registration is generally required whether or not you export. Even a system configured to export nothing usually needs to be registered and approved, because it is connected to the network. Many owners do not realise this, and an unregistered system can cause problems at property sale, with insurance, or if the utility audits.

Compensation is a separate question. Being registered does not automatically mean you get paid.

Whether you can feed in at all

This is the first question to ask, and the answer is genuinely variable:

• Some municipalities offer a feed-in tariff or net billing, crediting exports at a set rate, generally below the retail tariff.
• Some operate net metering, subtracting exported units from imported units on the bill, with credit for a net-positive month.
• Some allow connection but pay nothing, requiring zero-export configuration.
• Some have no SSEG process at all, which in practice means no legal route to connect.

Two houses a few kilometres apart, in different municipal boundaries, can face completely different rules. Advice from a friend in another city is frequently wrong for you.

The tariff structure catch

Even where feed-in is permitted, municipalities that buy solar exports commonly move those customers onto a different tariff structure - typically one with a higher fixed monthly charge and a lower energy rate.

This can be more consequential than the export rate itself. A higher fixed charge is payable whether the sun shines or not, and it can absorb a meaningful share of the savings from a small system.

When you compare options, compare the total annual bill under each tariff, not the export rate in isolation. Ask your municipality for both tariff schedules and model your actual consumption against each.

Why self-consumption dominates here

Given that export compensation is unreliable, often below retail, and sometimes zero, the South African case for solar rests almost entirely on avoided imports.

That is not a weak position. Electricity prices have risen steeply, and supply reliability has driven battery adoption independently of any tariff consideration. Most South African installations are sized around daytime consumption with storage for evening use, which is exactly the design that net-billing markets elsewhere are now converging on.

The practical upshot: treat any export income as a bonus, and build the business case on the units you do not buy. If your municipality later improves its terms, that is upside rather than a dependency.

Registering an SSEG

1. Identify your supplier - Eskom direct, or your municipality. This determines everything else.
2. Get the SSEG application pack from that supplier. Requirements differ.
3. Use a registered installer. Sign-off by a suitably qualified person is normally required, and a Certificate of Compliance is standard.
4. Confirm your inverter is on the approved list. Grid-tied inverters generally must meet the applicable national standard, and non-compliant equipment is a common rejection reason.
5. Submit the application with your single-line diagram, equipment datasheets and CoC.
6. Inspection and metering. If you are permitted to export, a bidirectional meter is installed. If you are on zero-export, the configuration is verified instead.
7. Approval, then legal operation.

The two most common failure points are non-compliant inverters and missing documentation. Both are avoidable by checking before you buy hardware rather than after.

Questions to ask your municipality

Ask these in writing, and keep the reply:

• Do you permit export from residential SSEG installations?
• What is the export rate, and how is it credited - cash, or bill credit?
• Will I be moved to a different tariff? What are the fixed charges on it?
• Do export credits expire?
• What are the registration fees and metering costs?
• What is the maximum system size for my connection?

A written answer is worth having. Municipal practice can differ from municipal policy, and a documented reply is what you rely on later.

Tracking your numbers

Whatever your municipality permits, you still want a clear picture of imports, exports and net position each cycle. Our free net metering calculator works in rands, keeps peak and off-peak imports separate, and carries surplus forward - useful for checking a municipal bill you cannot easily interpret.

Frequently asked questions

Is there net metering in South Africa? Not nationally. Some municipalities operate net metering or net billing; others permit no export at all. It depends entirely on your supplier.

Do I have to register if I do not export? Generally yes. Registration applies to grid-connected generation regardless of whether you feed in. Check your supplier's specific requirement.

What happens if I do not register? Risks include disconnection, penalties, insurance complications and problems at property transfer. It also leaves you with no recourse if there is a metering dispute.

Can I sell power directly to Eskom? If Eskom is your direct supplier, its SSEG process applies. If you are supplied by a municipality, your relationship is with them, not Eskom.

Is a battery worth it? In South Africa the reliability case often justifies storage on its own, before any tariff consideration. Where export pays little or nothing, storage also captures value that would otherwise be given away.