The Real-Time Market (RTM) on the Indian Energy Exchange has quietly become one of the most effective tools for industrial buyers to cut power costs. By procuring electricity in 15-minute slots close to the time of delivery, flexible consumers are routinely landing power 20–25% below their DISCOM HT tariff.
What is the Real-Time Market?
Launched to give participants a way to balance their power position near real time, the RTM holds auctions throughout the day for delivery just an hour or so later. Prices are discovered every 15 minutes based on supply and demand across the grid. When generation is plentiful and demand is soft, clearing prices can fall well below conventional tariffs.
Why it produces savings
HT industrial tariffs are typically fixed, high, and loaded with fixed charges. The exchange, by contrast, reflects the actual marginal cost of power at that moment. For consumers who can shift or sustain load when prices are low, the arbitrage is significant.
- Off-peak abundance: midday solar surplus and overnight troughs frequently clear at low prices.
- Granular procurement: 15-minute blocks let buyers match purchases to their actual load curve.
- No long-term lock-in: unlike a PPA, the RTM requires no multi-year commitment.
Key Takeaways
- RTM auctions clear every 15 minutes for near-term delivery.
- Flexible consumers achieve 20–25% savings vs. HT tariffs.
- Savings depend on load flexibility and the ability to schedule accurately.
- Open access approval and a registered trading arrangement are prerequisites.
- Deviation settlement risk must be managed actively.
Who benefits most
The RTM rewards flexibility. Consumers with the following characteristics tend to capture the largest savings:
- Continuous or shiftable loads that can absorb power during low-price windows.
- Energy-intensive processes where power is a large share of operating cost.
- An energy team (or partner) capable of accurate scheduling and forecasting.
What it takes to participate
Accessing the RTM is not as simple as opening an account. You need open access approval, a registered relationship with a trader or direct membership, accurate scheduling capability, and a plan to manage deviation settlement risk. The savings are real, but they reward operational discipline — a poorly managed exchange strategy can give back its gains through deviation penalties.
For the right consumer, the Real-Time Market is one of the highest-return, lowest-commitment levers available in Indian power procurement today. The question is whether your load profile and operations are positioned to use it.
