ONS (Operador Nacional do Sistema Elétrico) — Brazil's national electricity grid operator. Public Tempo Real REST/JSON feed, no credentials. Real-time national system load (SIN, ~77 GW), generation mix by source (hydro, thermal, wind, solar, nuclear), marginal operating cost (CMO) by submarket (Southeast/Center-West, South, North, Northeast) in R$/MWh, the energy balance snapshot (generation, load, import/export and interchange by submarket plus international ties with Argentina/Paraguay/Uruguay), and reservoir energy storage (EAR). Joins the power-markets family (ercot/spp/nyiso/caiso/aemo/cammesa/eirgrid).
6 methodsFreshness not declaredCAMMESA is Argentina's wholesale electricity market and grid operator (SADI). This connector exposes real-time, public demand and temperature for the 24 provinces and 8 regions plus the system-wide total, refreshed every 5 minutes (today, yesterday, same-day-last-week, and the dispatch forecast), and the live generation mix by fuel (hydro, thermal, nuclear, renewable, imports). No setup needed.
5 methodsFreshness not declaredEirGrid Smart Grid Dashboard — the all-island Irish transmission system operator (Republic of Ireland + Northern Ireland). Public REST/JSON, no credentials. Live 15-minute system demand (MW), wind and solar generation actuals and forecasts (MW), the live fuel mix (gas/coal/renewable/net-import shares), named interconnector flows (EWIC, Moyle, Greenlink), carbon intensity and emissions, and System Non-Synchronous Penetration (SNSP). Region can be all-island, Republic of Ireland (ROI), or Northern Ireland (NI). Joins the power-markets family (caiso/ercot/aemo/entsoe/cammesa).
10 methodsFreshness not declaredNOAA NCEI historical climate data via the keyless Access Data Service: - Daily summaries (GHCN-Daily): TMAX/TMIN/PRCP by station + date range - Climate normals (1991-2020): annual, seasonal, monthly heating/cooling degree-days (HDD/CDD) - Station + dataset discovery (by bbox or id) CRITICAL USAGE RULES: 1. No auth — keyless /access/services path, NOT the token-gated CDO v2 API 2. Degree-days (HDD/CDD) drive heating-oil / natural-gas / power demand — getDegreeDays() weather-normalizes production/load and models seasonal gas demand 3. Daily temps scaled tenths-°C→°C, precip tenths-mm→mm; degree-days are whole, °F base (65°F) 4. searchStations() (bbox order north,west,south,east) finds station ids for the data methods
5 methodsFreshness not declared
Knowledge
Know your data sources.
The public data contract for every source PatchOps exposes over MCP: provenance, freshness, coverage, caveats, and per-method schemas. Also available as JSON at /api/knowledge/data-sources.
tag: demand