{
  "schema_version": "1.0",
  "generated_at": "2026-08-04T18:53:45.251604Z",
  "location": {
    "city_id": "tromso",
    "city": "Tromsø",
    "country_code": "NO",
    "country": "Norway",
    "latitude": 69.6489,
    "longitude": 18.9551,
    "timezone": "Europe/Oslo"
  },
  "reference_system": {
    "installedKwp": 10,
    "orientation": "S",
    "tiltDeg": 35,
    "systemLossPct": 14
  },
  "tomorrow_forecast": {
    "cityId": "tromso",
    "name": "Tromsø",
    "lat": 69.6489,
    "lon": 18.9551,
    "timezone": "Europe/Oslo",
    "featured": false,
    "targetDate": "2026-08-05",
    "expectedKwh": 39.1,
    "lowKwh": 27.3,
    "highKwh": 49.6,
    "bestWindowStart": "2026-08-05T15:00:00+02:00",
    "bestWindowEnd": "2026-08-05T19:00:00+02:00",
    "confidence": "medium",
    "fetchedAt": "2026-08-04T18:53:45.251604Z",
    "freshness": "fresh",
    "stale": false
  },
  "typical_year": {
    "lat": 69.6489,
    "lon": 18.9551,
    "annualKwh": 7187.61,
    "averageDailyKwh": 19.69,
    "monthly": [
      {
        "month": 1,
        "averageDailyKwh": 0.02,
        "monthlyKwh": 0.57,
        "variabilityKwh": 0.16
      },
      {
        "month": 2,
        "averageDailyKwh": 5.28,
        "monthlyKwh": 147.96,
        "variabilityKwh": 45.12
      },
      {
        "month": 3,
        "averageDailyKwh": 22.42,
        "monthlyKwh": 695.11,
        "variabilityKwh": 111.25
      },
      {
        "month": 4,
        "averageDailyKwh": 38.66,
        "monthlyKwh": 1159.7,
        "variabilityKwh": 147.21
      },
      {
        "month": 5,
        "averageDailyKwh": 42.56,
        "monthlyKwh": 1319.46,
        "variabilityKwh": 138.52
      },
      {
        "month": 6,
        "averageDailyKwh": 36.69,
        "monthlyKwh": 1100.74,
        "variabilityKwh": 176.7
      },
      {
        "month": 7,
        "averageDailyKwh": 34.31,
        "monthlyKwh": 1063.5,
        "variabilityKwh": 141.38
      },
      {
        "month": 8,
        "averageDailyKwh": 28.46,
        "monthlyKwh": 882.38,
        "variabilityKwh": 105.44
      },
      {
        "month": 9,
        "averageDailyKwh": 19.2,
        "monthlyKwh": 575.94,
        "variabilityKwh": 113.82
      },
      {
        "month": 10,
        "averageDailyKwh": 7.48,
        "monthlyKwh": 231.77,
        "variabilityKwh": 59.34
      },
      {
        "month": 11,
        "averageDailyKwh": 0.35,
        "monthlyKwh": 10.48,
        "variabilityKwh": 4.96
      },
      {
        "month": 12,
        "averageDailyKwh": 0,
        "monthlyKwh": 0,
        "variabilityKwh": 0
      }
    ]
  },
  "comparison": {
    "annual_output_rank_in_country_sample": 7,
    "country_city_count": 7,
    "annual_yield_kwh_per_kwp": 718.761
  },
  "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/"
}