{
  "schema_version": "1.0",
  "generated_at": "2026-08-04T18:53:46.655341Z",
  "location": {
    "city_id": "bratislava",
    "city": "Bratislava",
    "country_code": "SK",
    "country": "Slovakia",
    "latitude": 48.1486,
    "longitude": 17.1077,
    "timezone": "Europe/Bratislava"
  },
  "reference_system": {
    "installedKwp": 10,
    "orientation": "S",
    "tiltDeg": 35,
    "systemLossPct": 14
  },
  "tomorrow_forecast": {
    "cityId": "bratislava",
    "name": "Bratislava",
    "lat": 48.1486,
    "lon": 17.1077,
    "timezone": "Europe/Bratislava",
    "featured": true,
    "targetDate": "2026-08-05",
    "expectedKwh": 54.7,
    "lowKwh": 48.1,
    "highKwh": 56.5,
    "bestWindowStart": "2026-08-05T12:00:00+02:00",
    "bestWindowEnd": "2026-08-05T16:00:00+02:00",
    "confidence": "high",
    "fetchedAt": "2026-08-04T18:53:46.655341Z",
    "freshness": "fresh",
    "stale": false
  },
  "typical_year": {
    "lat": 48.1486,
    "lon": 17.1077,
    "annualKwh": 12046.3,
    "averageDailyKwh": 33,
    "monthly": [
      {
        "month": 1,
        "averageDailyKwh": 15.42,
        "monthlyKwh": 478.15,
        "variabilityKwh": 94.86
      },
      {
        "month": 2,
        "averageDailyKwh": 23.86,
        "monthlyKwh": 668.09,
        "variabilityKwh": 147.27
      },
      {
        "month": 3,
        "averageDailyKwh": 35.42,
        "monthlyKwh": 1098,
        "variabilityKwh": 187.95
      },
      {
        "month": 4,
        "averageDailyKwh": 44.06,
        "monthlyKwh": 1321.82,
        "variabilityKwh": 147.28
      },
      {
        "month": 5,
        "averageDailyKwh": 44.1,
        "monthlyKwh": 1366.99,
        "variabilityKwh": 166.22
      },
      {
        "month": 6,
        "averageDailyKwh": 46.7,
        "monthlyKwh": 1401.05,
        "variabilityKwh": 127.95
      },
      {
        "month": 7,
        "averageDailyKwh": 46.85,
        "monthlyKwh": 1452.5,
        "variabilityKwh": 126.18
      },
      {
        "month": 8,
        "averageDailyKwh": 43.46,
        "monthlyKwh": 1347.14,
        "variabilityKwh": 115.26
      },
      {
        "month": 9,
        "averageDailyKwh": 38.6,
        "monthlyKwh": 1158.09,
        "variabilityKwh": 133.53
      },
      {
        "month": 10,
        "averageDailyKwh": 27.82,
        "monthlyKwh": 862.48,
        "variabilityKwh": 153.99
      },
      {
        "month": 11,
        "averageDailyKwh": 16.75,
        "monthlyKwh": 502.46,
        "variabilityKwh": 94.7
      },
      {
        "month": 12,
        "averageDailyKwh": 12.57,
        "monthlyKwh": 389.54,
        "variabilityKwh": 59.74
      }
    ]
  },
  "comparison": {
    "annual_output_rank_in_country_sample": 1,
    "country_city_count": 5,
    "annual_yield_kwh_per_kwp": 1204.6299999999999
  },
  "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/"
}