India's rapid expansion of renewable energy capacity has exposed critical gaps in transmission infrastructure, leading to large-scale curtailment of solar power. Examine the causes and suggest measures to ensure effective generation-transmission synchronisation.

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Introduction

India’s rapid scaling of renewable energy, especially solar, has outpaced transmission readiness, resulting in curtailment (forced reduction) of generation and inefficiencies in the power sector.

Causes of Generation–Transmission Mismatch

Asynchronous planning: Generation projects commissioned faster than transmission evacuation infrastructure.
Land and right-of-way issues: Delays in building transmission lines due to land acquisition and forest clearances.
Grid congestion: Renewable-rich states (Rajasthan, Gujarat, Tamil Nadu) face intra- and inter-state bottlenecks.
Variability of renewables: Intermittency creates load balancing challenges for grid operators.
Financial stress of DISCOMs: Preference for cheaper or contracted power leads to backing down of renewable energy.
Weak forecasting mechanisms: Inadequate demand and generation forecasting increases curtailment risks.
Policy and regulatory gaps: Lack of strict enforcement of “must-run” status for renewables.

Measures for Effective Synchronisation

Integrated planning: Align generation and transmission expansion through coordinated agencies (CEA, POWERGRID).
Green Energy Corridors (GEC): Accelerate dedicated transmission networks for renewable evacuation.
Energy storage solutions: Promote battery storage, pumped hydro to manage intermittency.
Smart grid and forecasting: Use AI-based forecasting, real-time monitoring, and flexible grid management.
Market reforms: Introduce real-time markets, ancillary services, and time-of-day pricing.
Strengthening DISCOMs: Improve financial health to ensure timely procurement and payment discipline.
Decentralised generation: Encourage rooftop solar and local consumption to reduce transmission burden.
Regulatory enforcement: Ensure strict adherence to must-run status and penalise arbitrary curtailment.

Conclusion

Bridging the generation-transmission gap is essential for maximising renewable potential. A holistic approach combining infrastructure, market reforms, and regulatory discipline will ensure efficient and reliable green energy integration.

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