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"confidence": "medium", "fetchedAt": "2026-08-04T18:53:40.541443Z", "freshness": "fresh", "stale": false }, "typical_annual_kwh": 11307.33, "typical_monthly": [ { "month": 1, "averageDailyKwh": 14.54, "monthlyKwh": 450.81, "variabilityKwh": 97.24 }, { "month": 2, "averageDailyKwh": 23.34, "monthlyKwh": 653.57, "variabilityKwh": 163.5 }, { "month": 3, "averageDailyKwh": 33.31, "monthlyKwh": 1032.46, "variabilityKwh": 170.82 }, { "month": 4, "averageDailyKwh": 40.4, "monthlyKwh": 1211.95, "variabilityKwh": 223.91 }, { "month": 5, "averageDailyKwh": 40.2, "monthlyKwh": 1246.2, "variabilityKwh": 167.58 }, { "month": 6, "averageDailyKwh": 43.56, "monthlyKwh": 1306.75, "variabilityKwh": 145.72 }, { "month": 7, "averageDailyKwh": 42.92, "monthlyKwh": 1330.61, "variabilityKwh": 134.85 }, { "month": 8, "averageDailyKwh": 39.29, "monthlyKwh": 1217.88, "variabilityKwh": 122.71 }, { "month": 9, "averageDailyKwh": 36.35, "monthlyKwh": 1090.48, "variabilityKwh": 125.83 }, { "month": 10, "averageDailyKwh": 26.28, "monthlyKwh": 814.65, "variabilityKwh": 128.21 }, { "month": 11, "averageDailyKwh": 17.41, "monthlyKwh": 522.35, "variabilityKwh": 105.5 }, { "month": 12, "averageDailyKwh": 13.86, "monthlyKwh": 429.61, "variabilityKwh": 136.84 } ] } ], "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/" }