{
  "schema_version": "1.0",
  "generated_at": "2026-08-04T18:53:46.316874Z",
  "location": {
    "city_id": "stockholm",
    "city": "Stockholm",
    "country_code": "SE",
    "country": "Sweden",
    "latitude": 59.3293,
    "longitude": 18.0686,
    "timezone": "Europe/Stockholm"
  },
  "reference_system": {
    "installedKwp": 10,
    "orientation": "S",
    "tiltDeg": 35,
    "systemLossPct": 14
  },
  "tomorrow_forecast": {
    "cityId": "stockholm",
    "name": "Stockholm",
    "lat": 59.3293,
    "lon": 18.0686,
    "timezone": "Europe/Stockholm",
    "featured": true,
    "targetDate": "2026-08-05",
    "expectedKwh": 19.6,
    "lowKwh": 12.7,
    "highKwh": 26.5,
    "bestWindowStart": "2026-08-05T09:00:00+02:00",
    "bestWindowEnd": "2026-08-05T13:00:00+02:00",
    "confidence": "medium",
    "fetchedAt": "2026-08-04T18:53:46.316874Z",
    "freshness": "fresh",
    "stale": false
  },
  "typical_year": {
    "lat": 59.3293,
    "lon": 18.0686,
    "annualKwh": 9822.35,
    "averageDailyKwh": 26.91,
    "monthly": [
      {
        "month": 1,
        "averageDailyKwh": 5.6,
        "monthlyKwh": 173.6,
        "variabilityKwh": 39.06
      },
      {
        "month": 2,
        "averageDailyKwh": 13.91,
        "monthlyKwh": 389.6,
        "variabilityKwh": 92.32
      },
      {
        "month": 3,
        "averageDailyKwh": 28.68,
        "monthlyKwh": 889.2,
        "variabilityKwh": 189.01
      },
      {
        "month": 4,
        "averageDailyKwh": 41.03,
        "monthlyKwh": 1231.01,
        "variabilityKwh": 110.37
      },
      {
        "month": 5,
        "averageDailyKwh": 45.05,
        "monthlyKwh": 1396.5,
        "variabilityKwh": 177.85
      },
      {
        "month": 6,
        "averageDailyKwh": 47.65,
        "monthlyKwh": 1429.53,
        "variabilityKwh": 139.75
      },
      {
        "month": 7,
        "averageDailyKwh": 44.55,
        "monthlyKwh": 1381.01,
        "variabilityKwh": 131.79
      },
      {
        "month": 8,
        "averageDailyKwh": 37.68,
        "monthlyKwh": 1167.99,
        "variabilityKwh": 152.61
      },
      {
        "month": 9,
        "averageDailyKwh": 29.54,
        "monthlyKwh": 886.32,
        "variabilityKwh": 142.15
      },
      {
        "month": 10,
        "averageDailyKwh": 17.52,
        "monthlyKwh": 543.18,
        "variabilityKwh": 111.98
      },
      {
        "month": 11,
        "averageDailyKwh": 7.19,
        "monthlyKwh": 215.62,
        "variabilityKwh": 65.02
      },
      {
        "month": 12,
        "averageDailyKwh": 3.83,
        "monthlyKwh": 118.78,
        "variabilityKwh": 49.54
      }
    ]
  },
  "comparison": {
    "annual_output_rank_in_country_sample": 2,
    "country_city_count": 7,
    "annual_yield_kwh_per_kwp": 982.235
  },
  "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/"
}