City of Cape Town SSEG Application and Approved Inverter List

Key Takeaways

• All grid-connected small-scale embedded generation (SSEG) systems within the City of Cape Town's electricity distribution boundary require formal authorisation.
• Your inverter must be NRS 097-2-1 compliant and ideally appear on the City's official approved inverter list.
• Unauthorized solar installations face disconnection fees and municipal service charges, and pre-paid meters will lock out.
• Installation and commissioning must be overseen by a registered professional, with a Certificate of Compliance (CoC) and Engineering Commissioning Report submitted.

Applying for Small-Scale Embedded Generation (SSEG) in the City of Cape Town

If you are considering installing a grid-connected solar power system within the City of Cape Town's electricity distribution boundary, formal authorisation is mandatory prior to installation. This process ensures your system complies with safety standards and grid integration requirements, preventing penalties and ensuring eligibility for benefits like feed-in tariffs. This guide details the City of Cape Town's specific requirements and application steps.

Understanding the City's Requirements for Your Solar System

The City of Cape Town's Electricity Generation and Distribution Department regulates grid-connected solar installations to maintain grid stability and safety. The governing standard for grid interconnection of embedded generation is NRS 097-2-1. This standard dictates the technical requirements that your inverter and system must meet.

A crucial step is checking the City's official list of approved inverters. All inverters installed on the City grid must have a valid NRS 097-2-1 type-test certificate from an accredited testing laboratory. If your chosen inverter does not appear on this list, it will require individual engineering sign-off and certificate submission, which can complicate the approval process.

For customers wishing to export excess power back to the grid, an advanced metering infrastructure (AMI) bi-directional smart meter must be installed by the City. Systems configured for zero grid export, meaning they do not send any power back to the grid, must include a certified reverse power blocking device to prevent unsanctioned feed-in.

The City also sets limits on system sizing. Residential single-phase connections are permitted a maximum inverter capacity of 3.5kVA or up to 5kVA under specified network conditions. Residential three-phase connections may install up to 13.8kVA of inverter capacity, subject to main breaker and network capacity verification.

Step-by-Step: The City of Cape Town SSEG Application Process

The formal application for SSEG systems in the City of Cape Town is managed through the City Connect e-Services portal. Following these steps will help you navigate the process:

1. Determine if Authorisation is Required:

• • All small-scale embedded generation (SSEG) systems connected to the City of Cape Town electricity grid must be formally authorized prior to installation.
  • Standalone solar water heaters (geysers) and solar thermal systems without electrical generation capabilities do not require SSEG grid authorization.

2. Verify Inverter Compliance:

• • Ensure your chosen inverter has a valid NRS 097-2-1 type-test certificate from an accredited testing laboratory.
  • Check the City's official list of approved inverters. If your inverter is not on this list, it will require individual engineering sign-off and certificate submission, which may extend the approval timeline.

3. Prepare for Application:

• • Gather all necessary documentation, which typically includes system design specifications, inverter datasheets, and proof of professional installation qualifications.
  • If you plan to export power, be aware that customers wishing to export power must have an advanced metering infrastructure (AMI) bi-directional smart meter installed by the City.
  • If you plan for zero export, ensure your system includes a certified reverse power blocking device to prevent unsanctioned feed-in.

4. Submit Application via City Connect:

• • Access the City Connect (e-Services) portal.
  • Follow the prompts to submit your SSEG application, uploading all required documents.

5. Installation and Commissioning:

• • Once your application is provisionally approved, proceed with the installation of your solar system.
  • Installation must be carried out by a qualified and registered professional.
  • Upon completion, a Certificate of Compliance (CoC) and an Engineering Commissioning Report signed by a registered professional (Pr Eng / Pr Tech) must be submitted.

6. Final Approval and Meter Exchange (if exporting):

• • The City will review your submitted CoC and Engineering Commissioning Report.
  • For systems approved for export, the City will arrange for the installation of the AMI bi-directional smart meter.
  • Authorized SSEG customers who export excess generation receive a municipal feed-in tariff credit plus the City's feed-in incentive rate.

What you can check yourself, and what you cannot

As a homeowner, you can research and verify several aspects of your SSEG system before and during the application process. You can check if your property falls within the City of Cape Town's electricity distribution boundary, as Eskom direct supply customers within the metro must follow Eskom national connection procedures. You can also consult the City's official list of approved inverters to ensure your chosen model is compliant or understand the additional steps required if it is not.

However, the actual installation, electrical work, and grid connection aspects of an SSEG system are not DIY tasks. In South Africa, this work requires a registered person. A Certificate of Compliance (CoC) is a legal document issued by a qualified electrician or electrical contractor, confirming that the electrical installation complies with the South African National Standard SANS 10142-1. Furthermore, an Engineering Commissioning Report signed by a registered professional (Pr Eng / Pr Tech) must be submitted upon completion of the system. Attempting to work on live electrical systems without proper qualifications and safety equipment is extremely dangerous and illegal. Always rely on certified professionals for installation, wiring, and commissioning to ensure safety and compliance.

What the published sources do not tell you

The City of Cape Town's published guidelines provide a clear framework for SSEG applications. However, they do not detail the specific internal processing times for applications, which can vary based on the complexity of the system and the volume of submissions. While the requirement for an Engineering Commissioning Report is stated, the exact template or specific content requirements for this report beyond the professional's signature are not publicly itemised in the provided sources. Additionally, the specific tariffs for the municipal feed-in credit and incentive rate are not included in the general SSEG information, requiring a separate inquiry into the City's electricity tariff schedule. This information is exclusively applicable within the municipal electricity distribution boundary of the City of Cape Town; customers supplied directly by Eskom must consult Eskom's national connection procedures, which are not covered by these City of Cape Town documents.