Solar Systems Over 1 MW: Tax and Regulatory Considerations

Systems above 1 MW require registration with the National Energy Regulator of South Africa (NERSA). The registration process includes technical specifications, environmental considerations, and grid impact assessments.\n\nNERSA registration is mandatory but has been streamlined in recent years. The process typically takes 2-4 months and should be initiated early in the project timeline.

Systems over 1 MW may fall under Section 12BA rather than Section 12B, depending on commissioning date and specific circumstances. Section 12BA provides a three-year depreciation (50/30/20) instead of 125% first-year.\n\nThe financial impact is significant. On a R20 million installation, Section 12B would provide a R25 million first-year deduction, while Section 12BA spreads R20 million over three years. Professional tax advice is essential.

Large solar systems may generate more power than a single site can consume. Wheeling agreements allow excess electricity to be transmitted through the grid to other consumption points owned by the same entity.\n\nWheeling is particularly relevant for businesses with multiple sites. The regulatory framework for wheeling is evolving, and connection agreements with municipalities or Eskom require careful negotiation.

Ground-mounted systems over 1 MW typically require environmental impact assessments under NEMA. Rooftop installations may be exempt depending on local regulations.\n\nLand use approvals from the local municipality may also be required for ground-mount installations. Allow 6-12 months for environmental and planning approvals on large ground-mount projects.