- South Africa 2026
- Executive summary
Executive summary
The edition on a few pages: the abstract, the key messages, the headline finding and what each steward reads in it.
Contents
- ·Edition home
- ·Executive summary
- 1South Africa’s risk runs through its pipes and its grid
- 2Key findings
- 3Systems and sectors at baseline
- 4Risks and capability
- 5Power shortfall and wastewater stress in a dense province
- 6Readings from the other desks
- 7The 2027 agenda
- 8Systems in depth
- AMethodology
- BData appendix
- CReferences and record
- ·Complete edition, for print
S.1Abstract
South Africa enters 2027 as a middle-income economy of 63.5 million people whose water and electricity systems are under strain, whose food supply is currently ample, and whose floods have become deadly at provincial scale171415. Greenhouse-gas emissions were about 478 Mt CO₂e in 2022 excluding land use, with energy supplying 78% of the total2. The second climate contribution, submitted on 24 October 2025, sets a 2035 range of 320 to 380 Mt CO₂e including land use, and the Climate Action Tracker rates it insufficient34. Energy shed by load-shedding fell 82% between the first halves of 2024 and 2025, while the Eskom fleet energy availability factor stayed near 58% and tariffs have risen 190% since 20145. Water is the nearer constraint. In the 2025 Green Drop assessment 47% of 848 wastewater systems were in a critical state, and non-revenue water was 47.3%89. The 2025 maize harvest was well above average and the 2026 forecast is 17.1 million tonnes7. Floods killed 459 people in KwaZulu-Natal in 2022 and, by the provincial count, 102 in the Eastern Cape in 20251415. About 7.8 million people were living with HIV in 2026, and life expectancy at birth was 65.5 years for men and 71.0 for women1. This Baseline Edition fixes the reference state for South Africa’s water, energy, food, health and biodiversity systems, maps the couplings through which grid, water and flood shocks travel, and sets the questions the first operational edition will answer with Foundry evidence in Q1 2027. It reads against peer distributions and thresholds, and it decides nothing.
S.2Key messages
Six readings that frame the South Africa baseline, and the eight questions this edition answers, each with its status and source.
About 478 Mt CO₂e in 2022 excluding land use, 78% from energy.2
Where do emissions stand?Reported
A 2035 range of 320 to 380 Mt CO₂e including land use, submitted in October 2025.34
What has South Africa committed to?Reported
Load-shedding energy fell 82% in a year, but fleet availability stayed near 58%.5
How secure is electricity?Reported
47% of wastewater systems were in a critical state in the 2025 assessment.89
How sound are water services?Reported
Supply is ample now: the 2025 harvest was well above average and 2026 is forecast at 17.1 million tonnes.7
Is food supply secure?Reported
459 deaths in KwaZulu-Natal in 2022 and 102 in the Eastern Cape in 2025.1415
What do floods cost in lives?Reported
Headline figures from the 2025 assessment are not bound in this edition.13
What is the state of biodiversity?Not bound
A power shortfall in a dense province with wastewater systems already in a critical state. SCN-ZAF-PWR-01
What will Q1 2027 test first?Expert input
S.3Headline finding
ReportedEQL 4NRF-COUNTRY-ZAF-2026-BASELINE-WAT-005
In the 2025 Green Drop assessment 47% of 848 wastewater treatment systems were in a critical state, up from 39%, and systems rated excellent or good fell from 14% to 8%.
| Item | Bar, scaled to the largest value | Value |
|---|---|---|
| Critical, previous assessment | 39 | |
| Critical, 2025 assessment | 47 | |
| Excellent or good, previous | 14 | |
| Excellent or good, 2025 | 8 |
Source: Department of Water and Sanitation Green Drop results, read in the parliamentary record of the ministry briefing of 9 June 20269.
Critical systems discharge poorly treated effluent to rivers that downstream towns, farms and ecosystems depend on. Treatment also needs reliable power, so the result links the water system to the grid. Reading the finding against provincial results matters: the critical share rose in KwaZulu-Natal, Gauteng and the Eastern Cape, and fell in Limpopo and Mpumalanga9.
S.4At a glance
S.5What each steward reads in it
GCRI · KEY T
Technical Truth
The evidence supports a coupled reading of South Africa’s risk: the grid is steadier than in 2024, but water services are weaker, and floods have become deadly at provincial scale.
GRF · KEY M
Public Meaning
For most people the risk arrives as a power cut, a water interruption or a flood warning.
GRA · KEY F
Capital Meaning
Readiness implications only. Tariffs are up 190% since 2014 and insured flood loss is not bound.
NEXUS
Synthesis
South Africa publishes strong open assessments of its water systems and its emissions.
S.6What this edition is, and is not
What this edition is
A baseline: the state of South Africa’s water, energy, food, health and biodiversity systems in 2026, the dependencies that connect them, the risks that travel through them and the capabilities that hold them. It sets out the questions the operational series will answer.
What it is not
Not a national risk assessment, an official warning or a rating. It decides nothing about any institution or asset. Competent authorities keep every mandate they hold, and national ownership of the series is unaffected.
What comes next
Q1 2027 opens the operational series with a sealed Foundry evidence cut. Each later edition reports what changed against this baseline, new observations, source revisions, method changes, scenario updates and corrections.
Notes
Numbers are the edition’s reference numbers, so a note reads the same in every chapter. The full list, with every source and its licence, is in Annex C. Annex C, references
- 1Statistics South Africa (ed.), Mid-year population estimates 2026, Statistical release P0302. Stats SA, Pretoria, July 2026.back
- 7Food and Agriculture Organization (ed.), GIEWS Country Brief: South Africa, reference date 22 April 2026. FAO, Rome, 2026.back
- 14Bloomberg (ed.), “Death toll from flooding in South Africa’s KZN rises to 459.” Bloomberg News, 29 May 2022.back
- 15Eastern Cape Provincial Government (ed.), flood recovery update reporting 102 flood-related deaths. Reported by Pondoland Times, Eastern Cape, 2025.back
- 2Department of Forestry, Fisheries and the Environment (ed.), GHG Inventory for South Africa: 2000–2022, 9th National Greenhouse Gas Inventory Report. DFFE, Pretoria, 2025.back
- 3Government of South Africa (ed.), Second Nationally Determined Contribution. Submission to the UNFCCC, 24 October 2025.back
- 4Climate Action Tracker (ed.), “South Africa: 2035 NDC.” Climate Analytics and NewClimate Institute, December 2025.back
- 5Council for Scientific and Industrial Research (ed.), “Loadshedding down 82% in H1 2025 as demand eases and EAF edges up, but tariffs still exceed inflation.” CSIR, Pretoria, 2025.back
- 8Department of Water and Sanitation (ed.), Green Drop, Blue Drop and No Drop reports 2025, released 31 March 2026. DWS, Pretoria, 2026.back
- 9Parliamentary Monitoring Group (ed.), “Green, Blue and No Drop Reports 2025: Ministry briefing,” Portfolio Committee on Water and Sanitation, 9 June 2026. PMG, Cape Town, 2026.back
- 13South African National Biodiversity Institute (ed.), National Biodiversity Assessment 2025: summary of findings and key messages. SANBI, Pretoria, launched 9 December 2025.back