{
  "schema_version": "1.0",
  "generated_at": "2026-08-04T18:53:40.830363Z",
  "location": {
    "city_id": "aarhus",
    "city": "Aarhus",
    "country_code": "DK",
    "country": "Denmark",
    "latitude": 56.1629,
    "longitude": 10.2039,
    "timezone": "Europe/Copenhagen"
  },
  "reference_system": {
    "installedKwp": 10,
    "orientation": "S",
    "tiltDeg": 35,
    "systemLossPct": 14
  },
  "tomorrow_forecast": {
    "cityId": "aarhus",
    "name": "Aarhus",
    "lat": 56.1629,
    "lon": 10.2039,
    "timezone": "Europe/Copenhagen",
    "featured": true,
    "targetDate": "2026-08-05",
    "expectedKwh": 41.7,
    "lowKwh": 31,
    "highKwh": 50.3,
    "bestWindowStart": "2026-08-05T13:00:00+02:00",
    "bestWindowEnd": "2026-08-05T17:00:00+02:00",
    "confidence": "medium",
    "fetchedAt": "2026-08-04T18:53:40.830363Z",
    "freshness": "fresh",
    "stale": false
  },
  "typical_year": {
    "lat": 56.1629,
    "lon": 10.2039,
    "annualKwh": 9695.46,
    "averageDailyKwh": 26.56,
    "monthly": [
      {
        "month": 1,
        "averageDailyKwh": 7.75,
        "monthlyKwh": 240.23,
        "variabilityKwh": 53.88
      },
      {
        "month": 2,
        "averageDailyKwh": 13.74,
        "monthlyKwh": 384.67,
        "variabilityKwh": 97.87
      },
      {
        "month": 3,
        "averageDailyKwh": 27.49,
        "monthlyKwh": 852.14,
        "variabilityKwh": 179.71
      },
      {
        "month": 4,
        "averageDailyKwh": 40.45,
        "monthlyKwh": 1213.59,
        "variabilityKwh": 176.7
      },
      {
        "month": 5,
        "averageDailyKwh": 43.82,
        "monthlyKwh": 1358.28,
        "variabilityKwh": 179.06
      },
      {
        "month": 6,
        "averageDailyKwh": 44.97,
        "monthlyKwh": 1349.24,
        "variabilityKwh": 127.19
      },
      {
        "month": 7,
        "averageDailyKwh": 41.19,
        "monthlyKwh": 1276.89,
        "variabilityKwh": 163.1
      },
      {
        "month": 8,
        "averageDailyKwh": 35.94,
        "monthlyKwh": 1114.13,
        "variabilityKwh": 98.85
      },
      {
        "month": 9,
        "averageDailyKwh": 30.04,
        "monthlyKwh": 901.21,
        "variabilityKwh": 84.81
      },
      {
        "month": 10,
        "averageDailyKwh": 18.11,
        "monthlyKwh": 561.53,
        "variabilityKwh": 95.77
      },
      {
        "month": 11,
        "averageDailyKwh": 8.66,
        "monthlyKwh": 259.76,
        "variabilityKwh": 69.42
      },
      {
        "month": 12,
        "averageDailyKwh": 5.93,
        "monthlyKwh": 183.78,
        "variabilityKwh": 50.93
      }
    ]
  },
  "comparison": {
    "annual_output_rank_in_country_sample": 5,
    "country_city_count": 5,
    "annual_yield_kwh_per_kwp": 969.5459999999999
  },
  "sources": {
    "tomorrow": {
      "weather": {
        "source_id": "OPEN_METEO",
        "name": "Open-Meteo weather forecast",
        "public_display_allowed": true,
        "requires_commercial_license": true,
        "terms_url": "https://open-meteo.com/en/terms",
        "pricing_url": "https://open-meteo.com/en/pricing"
      },
      "model": {
        "source_id": "GRIDPASSPORT_PV_PUBLIC_V1",
        "name": "GridPassport public PV forecast model",
        "description": "Weather-based physical PV estimate with public-safe inputs."
      },
      "attribution": {
        "text": "Weather forecast by Open-Meteo, PV estimate by GridPassport.",
        "transformation_notes": "GridPassport projects irradiance onto the configured PV array and applies public lead-magnet loss assumptions."
      }
    },
    "typical_year": {
      "name": "European Commission Joint Research Centre PVGIS 5.3",
      "url": "https://joint-research-centre.ec.europa.eu/photovoltaic-geographical-information-system-pvgis_en",
      "api": "https://re.jrc.ec.europa.eu/api/v5_3/PVcalc",
      "method": "Monthly average fixed-system output calculated from a multi-year solar radiation and climate series."
    }
  },
  "methodology_url": "https://gridpassport.com/solar-forecast/methodology/"
}