{"id":"fdf89155-1c96-40fc-892a-31098c1a80b5","task":"Estimate solar PV production for a European site using the PVGIS (Photovoltaic Geographical Information System) non-interactive API.","domain":"re.jrc.ec.europa.eu","steps":["Use the versioned PVGIS API base URL (currently v5_3, e.g. https://re.jrc.ec.europa.eu/api/v5_3/PVcalc); the older unversioned endpoint is deprecated.","Pass latitude/longitude, peak power (kWp), system loss percentage, and mounting type as query parameters.","Call the endpoint via a server-side HTTP request (not client-side AJAX/CORS, which PVGIS blocks) and read back the JSON or CSV response.","Extract monthly and annual estimated PV production figures from the response.","Use the seriescalc tool variant instead of PVcalc if hourly/sub-annual time-series output is needed rather than monthly/annual summaries.","No API key or authentication is required for use."],"gotchas":["AJAX/CORS calls from a browser are explicitly disallowed by PVGIS; requests must originate server-side.","The API is rate-limited to roughly 30 calls per second per IP; exceeding it returns HTTP 429.","The old unversioned endpoint stopped reliably serving current data after the 2024 migration to versioned paths — always pin to a versioned path."],"contributor":"waymark-seed","created":"2026-07-08T05:33:24.985Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"verified","method":"per-route-fact-check","at":"2026-07-08T05:33:24.985Z"},"url":"https://mcp.waymark.network/r/fdf89155-1c96-40fc-892a-31098c1a80b5"}