India's Spot Power Prices & Trends
15-minute Day-Ahead (DAM) and Real-Time Market (RTM) price dynamics, the solar duck curve, and price distributions from the Indian Energy Exchange (IEX).
National Grid Intraday Spot Prices & Dispatch
15-minute generation mix and spot power price trajectory across 96 time blocks
Power Price Distribution
Frequency of 15-minute spot prices across price buckets (₹/kWh)
Solar Impact on Prices (Duck Curve)
Average daily profile: Shift in hourly spot prices (₹/kWh) across years
15-Minute Spot Price Heatmap
Average price across all 96 time blocks. Color intensity indicates price bands.
India Spot Power Market Statistics & Benchmark Reference (IEX DAM & RTM)
| Time Interval / Metric | Market Segment | Typical Price Band (₹/kWh) | Key Driver |
|---|---|---|---|
| Solar Hours (10:00 – 15:00) | DAM & RTM | ₹2.20 – ₹3.50 / kWh | Surging utility solar PV generation (duck curve mid-day trough) |
| Evening Peak (18:30 – 22:30) | DAM & RTM | ₹6.50 – ₹9.50 / kWh | Residential cooling load spike, non-solar thermal ramping |
| Morning Peak (06:00 – 08:30) | DAM & RTM | ₹4.50 – ₹6.00 / kWh | Commercial opening, early industrial induction load |
| Regulatory Price Ceiling | CERC Regulated Cap | ₹10.00 / kWh (Standard DAM/RTM) | Statutory ceiling enforced to mitigate extreme scarcity bidding |
| High-Price DAM (HP-DAM) | Imported Coal / Gas / BESS | Up to ₹20.00 / kWh | High-variable-cost generators permitted during extreme stress periods |
Frequently Asked Questions
1. What is the difference between DAM and RTM on IEX?
The Day-Ahead Market (DAM) is a collective physical auction where electricity is traded 24 hours prior to delivery across ninety-six 15-minute time intervals. The Real-Time Market (RTM) operates in half-hourly continuous auction windows close to actual dispatch (roughly 1 hour prior to delivery), allowing distribution utilities and generators to balance unanticipated renewable intermittency and sudden demand shifts.
2. Why do Indian spot power prices collapse during afternoon hours?
India's solar capacity buildout has created a pronounced duck curve. Between 10:00 AM and 3:00 PM, over 90+ GW of zero-marginal-cost solar energy enters the grid under "must-run" status. This suppresses spot exchange clearing prices down to ₹2.00–₹3.50/kWh, contrasting sharply with evening peak periods where prices often test ₹7.00–₹10.00/kWh.
3. What is the maximum price cap on power exchanges in India?
The Central Electricity Regulatory Commission (CERC) has capped maximum clearing prices in standard DAM and RTM contracts at ₹10.00/kWh to protect consumers and utilities from extreme price gouging. A separate High-Price Day-Ahead Market (HP-DAM) segment allows high-variable-cost generators (e.g., imported gas and battery energy storage) to clear at up to ₹20.00/kWh.