29/03/2025
Understanding SSEG systems
Small scale embedded generation (SSEG) systems generate electricity, typically via solar panels, primarily for use on-site, with the potential to feed surplus power back into the municipal grid.
In South Africa, registering these systems is mandatory to ensure grid stability, safety, and compliance.
What you need to know about compliance
1. Approved inverters: Only NRS 097-2-1 type-approved inverters may be used for solar installations—whether off-grid, hybrid, or grid-tied, with or without solar panels. Many municipalities, including the City of Cape Town, maintain a list of approved inverters, and all electricity distributors require compliance with this standard.
2. Certifications required: Every solar installation must have a Certificate of Compliance (CoC) issued by a qualified electrical contractor registered with the Department of Employment and Labour. This certificate confirms that the installation meets all necessary safety and technical standards. Additionally, an electrical engineer must verify and approve that the installed system meets the design criteria. SANS10142 and SANS60634 for example…
3. Structural sign-off for large systems: For roofs with 14 or more panels, a civil engineer must approve the structural design to ensure the roof can support the weight of the solar panels. However, structural sign-off is only required in certain municipalities when the PV array exceeds 20kWp.
4. PV registration: Before installation, it’s also essential to obtain approval from your local municipality or Eskom, depending on your service provider. This step ensures that your system complies with local regulations and can be safely integrated into the existing grid.
5. National standards: All solar installations must comply with South African National Standards (SANS) and the NERSA Grid Code, which set out the safety and technical requirements for connecting renewable energy systems to the grid.
6. Solar Panel Certification: Photovoltaic panels must be tested and certified to IEC 61215 and 61730 by an authorised independent test laboratory.
7. Qualified installers: Only accredited professionals should undertake solar installations. Insurers often require that installations be performed by certified installers to ensure safety and compliance.
8. Grid-tied systems and metering: If you plan to export surplus energy back to the grid, you’ll need a bi-directional meter upgrade and a tariff change from your electricity provider.
9. Battery charging limits: To comply with national regulations (specifically NRS 097-2-3), your battery charging rate must not exceed 25% of your grid connection size. This is to prevent overloading the grid after load shedding, especially during high-demand periods.
10. Solar system insurance: Installing a solar system means updating your insurance policy to cover theft, damage, and compliance-related risks. Without proper coverage, insurers may refuse to pay out in the event of a fire if the system isn’t compliant. A valid CoC is usually required for insurance approval.
11. Landlord approval for renters: If you’re renting a property, you’ll need written approval from your landlord before installing a solar system. This ensures compliance with lease agreements and avoids potential disputes.
First Consult Solar Finance Solutions attends to all the above requirements on your behalf in a fully compliant manner.
www.firstconsult-solar.co.za
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