Cash for Power: Cape Town Buys Back Rooftop Solar
Cape Town runs its own electricity distribution across roughly 70% of the metro, and since 2023 it has bought surplus power back from customers on that network. Exports from authorised small-scale embedded generators, mostly rooftop solar, are credited to the municipal account at a feed-in rate approved by the national regulator NERSA, plus a 25c/kWh incentive the City adds itself. Once a bill reaches zero, remaining credit can be paid out as cash — a minimum of R1,000 for households, paid annually, or R5,000 for business, paid monthly. Sellers need an authorised installation and an approved bidirectional meter; in 2024 the City cut the single-phase meter to R6,043 including VAT, from R10,508 for the three-phase unit. The roughly 30% of the metro that Eskom supplies directly cannot take part, and applies to Eskom instead. Uptake stays narrow. The City reported 1,842 sellers at 31 January 2025, a small share of authorised rooftop installations, and said the headline earnings were largely municipal bill credits rather than cash. Selling requires a roof you own, capital for an array, and a City account — and a peer-reviewed national study published in 2025 found South African rooftop solar concentrated overwhelmingly in wealthy, historically white suburbs.
📊 Impact
City of Cape Town figures, as at 31 January 2025: sellers earned more than R55 million since the 2022/23 financial year — R43.1 million on the feed-in tariff plus R12.9 million from the 25c/kWh incentive — across 1,842 sellers, of which 1,090 residential and 752 commercial or industrial. Earlier City figures: R25.8 million and 1,461 sellers at 1 February 2024; R30.8 million and 1,537 sellers at 1 April 2024. These are self-reported and announced by media release; no independent audit of the programme was found.
🎓 Lesson
Paying cash rather than bill credit is a genuinely new answer to who gets money out of a meter — but it only reaches people who already own a roof, an array and a City account. A buy-back tariff moves money upward unless it is paired with something that puts panels on the roofs that do not have them.
Sources
📎 Cite this project
1001 Smart Cities (2026). “Cash for Power: Cape Town Buys Back Rooftop Solar” — Cape Town, South Africa. The Smart City Atlas. https://1001smartcities.org/projects/cape-town-cash-for-power/ (last verified 2026-07-26). Data: CC BY 4.0.
The underlying data is free to reuse with attribution — see the open data page.
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