{
  "id": "wet-megawatt-counter",
  "version": "1.0.0",
  "asOf": "2026-08-20",
  "dataVintage": 2023,
  "status": "scenario-model",
  "language": "bilingual",
  "observed": {
    "hydroGW": 199.9,
    "nuclearGW": 94.4,
    "classicThermalGW": 319.6,
    "totalCapacityGW": 1040.2
  },
  "assumptions": {
    "thermalWaterCooledSharePct": 50
  },
  "limits": {
    "thermalWaterCooledSharePct": {
      "min": 0,
      "max": 100
    }
  },
  "presetsPct": [
    0,
    25,
    50,
    75,
    100
  ],
  "formulas": {
    "knownFloor": "Known floor (GW) = hydropower capacity (GW) + nuclear capacity (GW)",
    "classifiedThermal": "Classified thermal (GW) = classic thermal capacity (GW) × assumed water-cooled share (%) ÷ 100",
    "waterCoupled": "Water-coupled capacity (GW) = known floor (GW) + classified thermal (GW)",
    "shareOfTotal": "Share of total (%) = water-coupled capacity (GW) ÷ total installed capacity (GW) × 100"
  },
  "sources": [
    {
      "label": "Red Eléctrica, European installed-capacity panorama for 2023",
      "url": "https://www.sistemaelectrico-ree.es/en/2023/spanish-electricity-system/european-landscape/generation",
      "role": "Observed ENTSO-E member-state capacities used in every calculation"
    },
    {
      "label": "European Environment Agency, Water savings for a water-resilient Europe",
      "url": "https://www.eea.europa.eu/en/analysis/publications/water-savings-for-a-water-resilient-europe",
      "role": "Context on electricity cooling, water abstraction and data limitations"
    },
    {
      "label": "JRC Open Power Plants Database",
      "url": "https://data.jrc.ec.europa.eu/dataset/9810feeb-f062-49cd-8e76-8d8cfd488a05",
      "role": "Evidence that cooling and water fields can exist at unit level, with incomplete and irregularly updated coverage"
    }
  ],
  "scope": {
    "includes": [
      "accounting perimeter",
      "observed hydro and nuclear floor",
      "assumed share of classic thermal capacity",
      "share of total installed capacity"
    ],
    "excludes": [
      "unit-level cooling inventory",
      "freshwater exposure",
      "water stress",
      "simultaneous outage probability",
      "generation",
      "energy lost",
      "market prices"
    ],
    "warning": "The thermal water-cooled share is a reader assumption, not an estimate. The result is a capacity classification exercise, not a risk forecast."
  }
}