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⚡ Energy

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.

Live 📅 since 2023 ✔ Editor-reviewed

✔ Reviewed by the 1001 Smart Cities editorial desk · 🔎 Last verified

📊 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.

Evidence🏛️ Official
Scale🏙️ City-wide
CostR55M paid to sellers to Jan 2025 (City figure); bidirectional meter R6,043 incl VAT borne by the customer
FundingCity of Cape Town electricity revenue; feed-in rate approved by NERSA

Sources

↗ Engineering News — Capetonians reach R55m earnings mark in Cash for Power (25 Feb 2025)Strongest dated figures: R55m at 31 Jan 2025, split R43.1m feed-in / R12.9m incentive; 1,842 sellers (1,090 residential, 752 commercial). Also the source of the 'first metro to buy excess solar PV' claim, attributed there to Mayor Geordin Hill-Lewis — attributed here, not asserted.
↗ Engineering News — More than 430 Cape Town households apply to sell excess power (9 May 2024)Meter costs sentence-level: 'The new meter costs R6 043, including VAT, compared with R10 508 for the old meter.' Also R30.8m and 1,537 sellers (910 residential, 627 commercial) as at 1 April 2024 — this dates the seller figure that circulates undated.
↗ Engineering News — City of Cape Town to pay businesses, residents cash for electricity (24 Jan 2023)Programme announcement and structure: NERSA-approved 79c/kWh at launch plus the City's own 25c/kWh incentive.
↗ City of Cape Town — Electricity Consumptive Tariffs schedule (2025/26)Authoritative operator source for current rates: SSEG feed-in 101.23 c/kWh excl VAT plus a 25.00 c/kWh incentive for 2025/26, and the cash payout thresholds. Note: the main capetown.gov.za site returned HTTP 502 to automated fetching on 26 July 2026 across two attempts; this resource subdomain served the tariff documents.
↗ Venter, Chivanga, Davies, Monyai & Scott — Darkening nights and rooftop solar adoption under South Africa's electricity crisis (Environmental Research: Energy, 2025)Peer-reviewed and independent, and the only outside evidence bearing on the equity question. Important limit: it samples 300 urban census tracts nationally, does NOT break out Cape Town, and does not measure Cash for Power participation. Solar panel area per household 73x higher in majority-white tracts; 2.17 m2 per household in high-income areas versus 0.0004 m2 in poor areas.
↗ The Conversation — Satellite images reveal the dark side of household solar power (2025)Plain-language summary of the above by two of its authors; used only for framing, with the study itself as the citation of record.
↗ News24 — Cape Town residents can now register to sell power back to the city (12 Feb 2024)Dates the opening of the residential cash option; the first application window closed in March 2024 with 432 household applications.
↗ ESI-Africa — Latest list of municipalities with approved SSEG tariff structuresContext for the superlative: about 29 municipal utilities have some SSEG tariff component, so buying back is not unique — paying cash is what distinguishes Cape Town. Direct fetch returned HTTP 403; verified via search snippets only.
📎 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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