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

GS3 Infrastructure
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.

Examine

  • 10 marks
  • 8 min
  • 150 words
  • Hard

The Hindu

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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.