Data API Catalogue

National grid frequency, recorded continuously. Useful for ancillary-services and balancing modelling.

Per-state grid frequency observations from individual SLDC scrapers.

Net interstate flow (MW), in-state generation, and demand for every state. Sourced from POSOCO NPP + SRLDC publications.

Available Transfer Capability (ATC) revisions on inter-regional corridors, parsed from Grid-India NLDC publications. Joinable with congestion blocks for attribution.

Raw 15-min metered demand directly from each state's SLDC. Includes peak, frequency, and source-document provenance.

LightGBM-modelled state demand for slots/states where the official SLDC source was unavailable. Explicitly labelled `modelled` so production users can filter.

4-minute national demand from POSOCO/MERIT. Highest-cadence national demand series available.

LightGBM 24-hour demand forecast for every state, refreshed hourly. Versioned forecast log accumulates from 2026-04 onwards for backtest use.

Every demand-forecast vintage as it was published. Use for honest backtests against true as-of forecasts (no look-ahead).

Per-area DAM market clearing prices across the current IEX bid areas, joined to the national MCP so congestion divergence can be read directly.

Latest Day-Ahead Market blocks: MCP, MCV, purchase bids, and sell bids at 15-minute resolution. Use market_type=DAM on the public developer endpoint.

Latest Real-Time Market blocks: MCP, MCV, purchase bids, and sell bids at 15-minute resolution. Use market_type=RTM on the public developer endpoint.

Green DAM clearing prices, volumes, REC trades, and green premium analytics. This production route is currently served from the intelligence namespace.

Bid-area buy/sell volumes are collected internally, but the public HTTP route advertised earlier is not mounted today. Request a sample or use the IEX market data routes while the v1 area-volume endpoint is being mounted.

Per-state retail tariff structures from SERC orders.

Per-state open-access wheeling, transmission, and cross-subsidy surcharges. Critical for IEX bilateral cost-stack modelling.

Tracked public investment announcements with state, sector, value, and timeline.

4-minute fuel-wise generation (coal, gas, hydro, nuclear, renewables) for the national grid.

Per-state fuel mix at hourly cadence. Constrained allocator (not LightGBM) — splits national fuel mix across states by installed-capacity weights anchored to state-level metered totals.

Plant-level and state-level generation history from NPP + CEA publications.

Per-state hourly carbon intensity (gCO2/kWh) derived from fuel-mix and emission factors.

15-minute average and marginal carbon intensity for every state, with explicit signal-type discrimination, audit-ready source citations, and historical restatement versioning. Average for Scope 2 disclosure; marginal for load-shift dispatch — never mixed.

5-year daily power supply position per state and region: peak demand, peak met, energy met, shortage. Sourced from POSOCO PSP PDFs.

Daily CEA power supply position table.

Installed-capacity inventory of power plants across India with location, fuel, commissioning year, and operator.

Tabular transmission-line inventory by state. Separate from the geospatial Atlas map tiles.

Operational substations by state with kV class.

Tracked renewable project pipeline by state.

Hourly temperature, humidity, precipitation across 11+ states. Critical exogenous feature for demand forecasts.

Derived stress score combining demand, generation headroom, and frequency deviation.

State and regional renewable-constraint proxy combining generation, transmission capacity, and investment.

Rollup index of investment momentum by state.

MAPE between modelled state demand and official metered demand. Quality assurance for the modelled fill.