UPSC Mains
GS Paper III
Economy / Energy
Power Exchange Reforms and Renewable Energy Market: UPSC Mains Notes
As India’s solar capacity crosses 162 GW, over two billion units of solar electricity were curtailed between May and December 2025 — exposing a deeper debate over whether India’s power market reform should centralise trading under Grid-India or open it to competitive innovation.
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Solar Capacity (June 2026)
162 GW
India’s installed solar capacity
Curtailed Solar Power
Over 2 Billion Units
May–December 2025, grid could not absorb surplus
IEX Market Share
~80–85% of Trading Volume
Dominant exchange in Day-Ahead & Real-Time Markets
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Renewable Energy Regulation in India: Context and Background
- India’s solar capacity has expanded to 162 GW by June 2026, but between May and December 2025, over two billion units of solar electricity were curtailed.
- The grid could not absorb surplus renewable generation at peak solar hours; the solution requires transmission investment, flexible plants and battery storage — not just added generation capacity.
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Key Aspects of India’s Electricity Market Reform
- Most electricity trades in the Day-Ahead Market (DAM) and Real-Time Market (RTM); the Indian Energy Exchange (IEX) handles roughly 80–85% of trading volumes, making it the dominant exchange.
- The Central Electricity Regulatory Commission (CERC) has proposed that Grid-India become the Market Coupling Operator (MCO), pooling bids from all three power exchanges.
- Grid-India’s stated mission is to balance the grid, not compete for customers — raising the core question of whether a system operator should also run the central trading algorithm.
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Challenges in Power Market Regulation
Grid CurtailmentOver 2 billion units of solar power wasted last year
Market FragmentationCERC’s own shadow pilot showed only 0.3% welfare improvement over 4 months
Regulatory OverreachControl handed to a government utility, not a commercial operator
Innovation RiskA government-owned entity would control the central clearing algorithm
MCO ComplexityRound-robin approach forces every exchange to duplicate capital costs
Slow PaceGrid-India’s administrative simplicity suits a system operator, not a market innovator
- Full Coupling Problem: Every new trading product would require rewriting an algorithm controlled by Grid-India, tethering market innovation to a public utility’s pace.
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CERC’s own shadow pilot data — just a 0.3% welfare improvement over four months — suggests market coupling under a non-commercial system operator may not deliver the efficiency gains it promises, while risking a slowdown in the pace of market innovation.
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Way Forward for India’s Renewable Energy Market
Reward Flexible Capacity
Build market architecture that rewards flexible capacity through real-time pricing signals.
Open Frequency-Regulation Markets
Replace centralised control with open, competitive markets for frequency-regulation services.
Let Storage Price Itself
Allow storage investors to price their business case through market signals, not regulatory mandates.
Enable Time-of-Day Pricing
Let prices fall when power is abundant at noon and rise when it is scarce, reflecting real supply-demand dynamics.
Design Tradeable Products
Build a robust market around products that sellers and buyers actually want to trade.
Enable Cross-Regional Trading
Make surplus generation tradeable across regions facing shortage through flexible market mechanisms.
Target Market Dominance, Not Innovation
Focus regulatory priorities on addressing market dominance rather than stifling innovation through administrative control.
The core policy tension: India’s renewable transition needs a market that prices flexibility and scarcity dynamically — a goal better served by competitive innovation among exchanges than by centralising control under a single non-commercial operator.
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Source: Indian Express