Holding Its Own Customers Below the National Load-Shedding Stage
This overview was generated with AI from the public sources listed below and checked against them before publication. It has not had a complete human fact-check — treat it as a starting point and follow the sources.
1 sourced claim on this page, none individually verified yet — turn on “Sources in the text” to see each one.
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✎ Updated 20 Aug 2026 Publication date recorded for 1 source. What changed →
A pumped-storage scheme built in 1979 held the city a load-shedding stage below the country, and an independent study found it averted deaths. It also covered 81 percent of white residents and 27 percent of black African ones.
what does this mean?
The strongest source is an independent non-academic evaluation: an audit office, a government or EU review, or an NGO. It grades who did the looking — not how well the project went. All four grades →Part of 1001 Smart Cities — 1,167 documented projects · 🏙️ 4 more in Cape Town · 🔌 Smart grid & energy guide · ⚡ Energy projects
Cape Town owns Steenbras, a pumped-storage scheme built in 1979 in the mountains above Gordon's Bay, and from June 2015 used it to hold its own electricity customers one stage below the national load-shedding stage — occasionally two, and at times none at all, which the City labelled Stage 0. The mechanism is dispatch, not sensing: four reversible turbines run through the evening peak and pump the water back overnight, shaving enough demand that the City can shed less than Eskom orders. Protection was never guaranteed. It collapsed at Stage 6, and weekends went on rebuilding the reservoir for the week ahead. It also stopped at the City's billing boundary: Cape Town distributes roughly 70 percent of the metro's electricity, Eskom supplies the rest directly, and those customers cannot be protected. Eskom rejected the City's 2023 bid to buy out those supply areas. An independent synthetic-control study found the policy significantly reduced deaths — and that the protected areas hold 81 percent of the city's white residents but 27 percent of its black African residents. No national load-shedding has occurred since 15 May 2025; the scheme stays in service under a R1.2bn refurbishment.
📊 Impact
City of Cape Town figures (self-reported): about 514 hours, roughly 21 days, of one-stage protection for City-supplied customers between January and May 2022; Stage 4 held for City customers while Eskom ran Stage 6 nationally in June 2022. Independent estimate (Joshua Budlender, UNU-WIDER working paper 2024-44, stacked synthetic control): about 547 premature deaths averted among City-supplied residents aged 65 and over, 2015-2019, 95% confidence interval 94 to 1,002 — the author stresses the estimate is imprecise. Same study: 81% of Cape Town's white residents live in the protected City-supplied areas, against 27% of its black African residents.
🎓 Lesson
One dispatchable asset the city already owned bought a stage of relief that measurably saved lives — but nothing about it was smart, and the relief followed apartheid-era supply lines rather than need. Pumped storage also consumes more grid power than it returns; Cape Town shifted Eskom's electricity in time, it never made any.
Sources
Show 4 more sourcesShow fewer
📅 How old is the evidence?
Two clocks, kept apart: when this entry’s sources were published, and what has happened to its record in the atlas. Documented span: since 2015. 8 of 9 sources carry a publication date, from 30 June 2022 to 21 May 2026.
When the sources were published
- Daily Maverick · pressDaily Maverick, 30 June 2022 (press)
- City of Cape Town · city governmentCity of Cape Town: How it works — City and Eskom electricity supply areas
- Engineering News · pressEngineering News, 18 April 2023 (trade press)
- UNU-WIDER (United Nations University) · researchUNU-WIDER blog: A tale of two cities
- Daily Maverick · pressDaily Maverick / Bloomberg, 25 May 2023 (press)
- UNU-WIDER (United Nations University) · researchUNU-WIDER: Surviving in the Dark (WP2024-44)
- University of Cape Town · researchSALDRU, University of Cape Town (academic summary)
- Crown Publications · pressCrown Publications, 21 May 2026 (trade press)
What happened to this record
- Sources last read
- Publication date recorded for 1 source
- Entered the record
Show your work What this page rests on and what it can’t tell you · all 1 claims with their sources · the forensic record
Evidence Passport · public beta 1 addressable claim, 9 source dossiers, one permanent baseline. The passport is unreviewed — an AI-assisted structural migration, not a human or expert endorsement. Every revision keeps a permanent copy under revision history.
Inspect the claims, one by one — verbatim text, sources and caveats for all 1
The text below is copied verbatim from the published record. Each claim names the source dossiers that carry it; caveats stay attached to the claim they qualify.
clm-8894b8478e746133
quantitative
about 547 premature deaths averted among City-supplied residents aged 65 and over, 2015-2019, 95% confidence interval 94 to 1,002
Sources carrying this claim
Forensic record — source dossiers, gaps, hashes and the exact revision this page renders
This layer records what is known about each source, what is still missing, and the exact snapshot this page is rendering. A missing date, archive or hash stays visible as missing.
Awaiting operator and domain-expert review; publication of this revision implies neither.
sha256:c68d89bcbaf27213b209de1c71300f024aa84ba41a1621414b4c4e034b7b3f45
- 1
- of 1 claims mapped
- 9
- source dossiers
- 7
- publication dates recorded
- 1
- archives linked
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- exact locators
- 0
- content captures hashed
Governance facts carried by the record
- Operator
- City of Cape Town — Energy Directorate (Steenbras Hydro Pump Station)
- Actor types
- utility
- Funding model
- public
- Funding description
- City of Cape Town capital budget
- Cost
- ≈R1.2bn budgeted in 2023 for Steenbras: about R1bn refurbishment and expansion plus about R200m maintenance over nine years
- Ownership
- Not recorded
- Decision rights
- Not recorded
- Exit conditions
- Not recorded
9 source dossiers
UNU-WIDER: Surviving in the Dark (WP2024-44)
- Stable source ID
src-da8ca68a8bf269c3- Publisher
- Name not classified · wider.unu.edu
- Type / language
- web-page · language not classified
- Published
- Not recorded
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-07-26
- Dossier created
- 2026-08-20
- Retrieved copy
- No local capture recorded
- Archive
- Open archived copy ↗ · 2026-03-25
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
Fetched. Joshua Budlender, July 2024. Abstract: 'the introduction of a unique load shedding reduction policy in parts of South Africa's second-largest city'. Confirms the policy statistically significantly reduces mortality and that 'the incomplete geographic coverage of the mitigation policy entrenches existing inequalities in the city'. The page states explicitly that this is a working paper, not peer-reviewed — hence evidence graded independent, not peer-reviewed.
- Claims linked
SALDRU, University of Cape Town (academic summary)
- Stable source ID
src-a0875eea1ed0b7d3- Publisher
- Name not classified · saldru.uct.ac.za
- Type / language
- web-page · language not classified
- Published
- 2024-07-25
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-07-26
- Dossier created
- 2026-08-20
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
Fetched. Author's home institution summarising the paper: synthetic control across the 2015, 2018 and 2019 mitigation episodes; Steenbras used to mitigate load shedding since June 2015 — the source for yearStart; 547 deaths averted, 95% CI 94-1,002; mitigation covered about 73% of the City's 65+ population; mortality data from the SA Medical Research Council, load-shedding data from the City and EskomSePush.
- Claims linked
- Background source; no baseline claim points here
UNU-WIDER blog: A tale of two cities
- Stable source ID
src-98f735e96f1cf8a8- Publisher
- Name not classified · wider.unu.edu
- Type / language
- web-page · language not classified
- Published
- 2023-05-25
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-07-26
- Dossier created
- 2026-08-20
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
Fetched. Sole verified source for the 81% white / 27% black African split between protected and unprotected areas, and for the author's framing of it as a legacy of apartheid-era urban planning.
- Claims linked
- Background source; no baseline claim points here
Daily Maverick, 30 June 2022 (press)
- Stable source ID
src-930139edd154e798- Publisher
- Name not classified · dailymaverick.co.za
- Type / language
- web-page · language not classified
- Published
- 2022-06-30
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-07-26
- Dossier created
- 2026-08-20
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
Fetched. 180 MW, four turbines, City owns and operates it, only South African city to do so; Stage 4 held while Eskom ran Stage 6 in June 2022; 514 hours or 21 days of one-stage protection January to May 2022 (City figures); analyst Chris Yelland on fast hydro ramping and on why other municipalities cannot copy it.
- Claims linked
- Background source; no baseline claim points here
Engineering News, 18 April 2023 (trade press)
- Stable source ID
src-7083a6479c9bc8e4- Publisher
- Name not classified · engineeringnews.co.za
- Type / language
- web-page · language not classified
- Published
- 2023-04-18
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-07-26
- Dossier created
- 2026-08-20
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
Fetched. R1bn refurbishment plus R200m maintenance over nine years; Energy MMC Beverley van Reenen on protecting 'a stage or two, where possible' and the plan to reach four stages. Note the capacity discrepancy: this source and most City statements say 160 MW (available output), the plant record says 180 MW nameplate.
- Claims linked
- Background source; no baseline claim points here
Daily Maverick / Bloomberg, 25 May 2023 (press)
- Stable source ID
src-bee826797942e1b0- Publisher
- Name not classified · dailymaverick.co.za
- Type / language
- web-page · language not classified
- Published
- 2023-05-25
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-07-26
- Dossier created
- 2026-08-20
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
Fetched. The 70/30 City-Eskom supply split; protection of about two stages applies to City-supplied zones only; Mayor Geordin Hill-Lewis, 'We want to supply the entire city'; the takeover talks Eskom later declined.
- Claims linked
- Background source; no baseline claim points here
Steenbras Power Station (plant record)
- Stable source ID
src-647e5f0faf1bb6e8- Publisher
- Name not classified · en.wikipedia.org
- Type / language
- web-page · language not classified
- Published
- Not recorded
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-07-26
- Dossier created
- 2026-08-20
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
Fetched. Used only for plant specification: 4 x 45 MW reversible turbines, 180 MW installed, commissioned 1979, owned and operated by the City of Cape Town Electricity Department. Low-authority source, cited only for specification, and its claim of being Africa's first pumped-storage scheme was NOT used — single weak citation.
- Claims linked
- Background source; no baseline claim points here
Crown Publications, 21 May 2026 (trade press)
- Stable source ID
src-fdeac7b516cad688- Publisher
- Name not classified · crown.co.za
- Type / language
- web-page · language not classified
- Published
- 2026-05-21
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-07-26
- Dossier created
- 2026-08-20
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
Fetched. Currency check: last national load-shedding 15 May 2025; at 00:01 on 16 May 2026 Eskom had gone one full year without it, the first since September 2018. Basis for status live but function dormant, outcome ongoing. Eskom's own milestone page returned HTTP 403 to automated fetching.
- Claims linked
- Background source; no baseline claim points here
City of Cape Town: How it works — City and Eskom electricity supply areas
- Stable source ID
src-4b3d0c53b3e3d2c6- Publisher
- Name not classified · capetown.gov.za
- Type / language
- web-page · language not classified
- Published
- 2022-11-01
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-07-26
- Dossier created
- 2026-08-20
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
FETCH FAILED — capetown.gov.za returned HTTP 502 to every automated request across three attempts, and its load-shedding FAQ PDF could not be parsed. Listed as the authoritative municipal statement of the supply split; every fact drawn from it here is instead carried by the independently fetched Bloomberg and UNU-WIDER sources.
- Claims linked
- Background source; no baseline claim points here
Known limits of this passport
- Publisher names and source languages have not yet been classified; domains are recorded without guessing.
- Existing source notes are descriptive locators, not page- or paragraph-exact citations.
- A missing archive, publication date or content hash is shown as null rather than inferred.
- The project-level evidence grade ranks the strongest source in the entry; it is not a truth score for every claim.
Continue exploring
Compare this project
When the power is short: four utilities, four things published
None of these adds a megawatt. Each is a data layer laid over a shortage, and what the utility chooses to publish decides what a household can do about it — and what the neighbours can see.
| Project | Since | Status | Outcome | Evidence | Run by | Cost | What the utility publishes |
|---|---|---|---|---|---|---|---|
| EDM-SA Published Load-Shedding Schedule for BamakoBamako, 🇲🇱 | 2024 | Live | Ongoing | Media | Utility or public operator | not public | When the power will go off, by neighbourhood — which turned the complaint from 'there is no power' into 'the plan is not respected here'. |
| Jirama Load-Shedding Forecasts and Water Rotation SchedulesAntananarivo, 🇲🇬 | 2024 | Live | Ongoing | Official | Utility or public operator | not public | A weekly forecast for power and a nightly rota for water. The gap between the schedule and the street became a political fact rather than a private one. |
| GECOL Prepaid Electricity MetersTripoli, 🇱🇾 | 2022 | Live | Ongoing | Official | Utility or public operator | not public | Who has paid, and nothing about supply — so a household can be cut off twice, for two unrelated reasons. |
| Holding Its Own Customers Below the National Load-Shedding StageCape Town, 🇿🇦 | 2015 | Live | Ongoing | Independent | Utility or public operator | ≈R1.2bn budgeted in 2023 for Steenbras: about R1bn refurbishment and expansion plus about R200m maintenance over nine years | Nothing, and it does not need to: the city dispatches a pumped-storage scheme it already owned and simply sheds less than it was told to. |
Explore the wider context
📎 Cite this project
1001 Smart Cities (2026). “Holding Its Own Customers Below the National Load-Shedding Stage” — Cape Town, South Africa. The Smart City Atlas. https://1001smartcities.org/projects/cape-town-load-shedding-protection/ (last verified 2026-07-26). Data: CC BY 4.0.
The underlying data is free to reuse with attribution — see the open data page.