{
  "schema": "ges.capacity-insights.v1",
  "version": "2026-10-20.1",
  "verified_on": "2026-10-20",
  "coverage": "National PV estimate and explicitly scoped public procurement snapshots. National installed BESS totals unverified.",
  "sources": {
    "irena": {
      "title": "IRENA Renewable Capacity Statistics 2026, solar PV table, printed p.25 / PDF p.37",
      "url": "https://www.irena.org/-/media/Files/IRENA/Agency/Publication/2026/Mar/IRENA_DAT_RE_capacity_statistics_2026.pdf",
      "published": "2026-03",
      "note": "End-2025 maximum net generating capacity; South Africa PV value marked e (IRENA estimate). \u00a9 IRENA 2026. Excludes CSP."
    },
    "treasury": {
      "title": "National Treasury, 2026 Budget Review, Annexure D, p.142",
      "url": "https://www.treasury.gov.za/documents/National%20Budget/2026/review/Annexure%20D.pdf",
      "published": "2026-02",
      "note": "Programme snapshots at end-December 2025. Programme capacity is not a full national project census."
    },
    "scatec": {
      "title": "Scatec South Africa asset portfolio",
      "url": "https://www.scatec.com/en/project/south-africa/",
      "published": null,
      "note": "Undated owner portfolio, checked 20 October 2026. Retains owner-reported status and units."
    },
    "hex": {
      "title": "Eskom Hex commissioning announcement",
      "url": "https://www.eskom.co.za/eskom-unveils-a-first-of-its-kind-largest-battery-storage-project-in-the-african-continent/",
      "published": "2023-11-10",
      "note": "Commissioned Hex asset, Worcester, Western Cape, 100 MWh. Evidence of commissioning does not certify present availability."
    }
  },
  "metrics": [
    {
      "id": "pv-installed",
      "technology": "Solar PV",
      "label": "Installed solar PV",
      "value": 10655,
      "unit": "MW",
      "status": "Installed",
      "scope": "IRENA national estimate; installed and connected at year-end",
      "capacity_basis": "IRENA maximum net generating capacity; e = estimate",
      "source_ids": [
        "irena"
      ],
      "as_of": "2025-12-31",
      "note": "Not a DC module-nameplate total. No rooftop estimate is added separately; CSP excluded.",
      "geography": "South Africa",
      "verified_on": "2026-10-20"
    },
    {
      "id": "pv-construction",
      "technology": "Solar PV",
      "label": "PV under construction \u2014 BW6 only",
      "value": 360,
      "unit": "MW",
      "status": "Under construction",
      "scope": "Two REIPPPP Bid Window 6 projects only",
      "capacity_basis": "Source-reported project MW; AC/DC boundary not specified in cited passage",
      "source_ids": [
        "treasury"
      ],
      "as_of": "2025-12-31",
      "note": "Partial programme scope; not total South African PV under construction.",
      "geography": "South Africa",
      "verified_on": "2026-10-20"
    },
    {
      "id": "pv-planned",
      "technology": "Solar PV",
      "label": "Planned PV \u2014 procured BW7",
      "value": 3940,
      "unit": "MW",
      "status": "Procured / planned",
      "scope": "18 REIPPPP Bid Window 7 bidders",
      "capacity_basis": "Source-reported procurement MW",
      "source_ids": [
        "treasury"
      ],
      "as_of": "2025-12-31",
      "note": "Procured does not mean commissioned, construction-started or financially closed.",
      "geography": "South Africa",
      "verified_on": "2026-10-20"
    },
    {
      "id": "bess-installed-power",
      "technology": "BESS",
      "label": "Installed BESS power \u2014 national",
      "value": null,
      "unit": "MW",
      "status": "Installed",
      "scope": "Whole-country total not verified",
      "capacity_basis": "Power",
      "source_ids": [
        "hex",
        "scatec"
      ],
      "as_of": "Not established",
      "note": "Selected public assets are documented; this release does not assert an exhaustive national total.",
      "geography": "South Africa",
      "verified_on": "2026-10-20"
    },
    {
      "id": "bess-installed-energy",
      "technology": "BESS",
      "label": "Installed BESS energy \u2014 national",
      "value": null,
      "unit": "MWh",
      "status": "Installed",
      "scope": "Whole-country total not verified",
      "capacity_basis": "Energy; usable/gross boundary not harmonised",
      "source_ids": [
        "hex",
        "scatec"
      ],
      "as_of": "Not established",
      "note": "Missing data is not zero. Pumped storage is excluded.",
      "geography": "South Africa",
      "verified_on": "2026-10-20"
    },
    {
      "id": "bess-construction-power",
      "technology": "BESS",
      "label": "BESS construction \u2014 BW1",
      "value": 513,
      "unit": "MW",
      "status": "Under construction",
      "scope": "Five BESIPPPP Bid Window 1 projects",
      "capacity_basis": "Source-reported programme power",
      "source_ids": [
        "treasury"
      ],
      "as_of": "2025-12-31",
      "note": "An end-2025 programme snapshot; project-specific subsequent changes are not inferred.",
      "geography": "South Africa",
      "verified_on": "2026-10-20"
    },
    {
      "id": "bess-construction-energy",
      "technology": "BESS",
      "label": "BESS construction energy \u2014 BW1",
      "value": null,
      "unit": "MWh",
      "status": "Under construction",
      "scope": "Same BW1 programme; energy aggregate not verified",
      "capacity_basis": "Energy",
      "source_ids": [
        "treasury"
      ],
      "as_of": "2025-12-31",
      "note": "No assumed storage duration is used to derive MWh.",
      "geography": "South Africa",
      "verified_on": "2026-10-20"
    },
    {
      "id": "bess-planned-power",
      "technology": "BESS",
      "label": "Planned BESS \u2014 BW2 + BW3",
      "value": 1231,
      "unit": "MW",
      "status": "Preferred bidders / pre-close",
      "scope": "BESIPPPP BW2 (615 MW) + BW3 (616 MW)",
      "capacity_basis": "Sum of two disjoint programme windows",
      "source_ids": [
        "treasury"
      ],
      "as_of": "2025-12-31",
      "note": "615 + 616 = 1,231 MW. Excludes BW1 construction; not a complete private-sector pipeline.",
      "geography": "South Africa",
      "verified_on": "2026-10-20"
    },
    {
      "id": "bess-planned-energy",
      "technology": "BESS",
      "label": "Planned BESS energy \u2014 BW2 + BW3",
      "value": null,
      "unit": "MWh",
      "status": "Preferred bidders / pre-close",
      "scope": "Same two programme windows; energy aggregate not verified",
      "capacity_basis": "Energy",
      "source_ids": [
        "treasury"
      ],
      "as_of": "2025-12-31",
      "note": "Not estimated from a generic four-hour assumption.",
      "geography": "South Africa",
      "verified_on": "2026-10-20"
    }
  ],
  "reconciliation": [
    "Do not sum national installed PV and procurement windows into one current fleet.",
    "Do not add project-register records to national totals or to procurement totals: populations overlap.",
    "BW2 and BW3 are disjoint windows; only their power ratings are summed.",
    "Do not convert owner-reported PV MW to MWac/MWp without supporting evidence.",
    "No coordinates inferred; province-level overview only.",
    "Undated owner pages are marked as checked, not as newly published."
  ]
}