Renewable energy capacity and energy security are not the same thing. Examine.

GS3 Infrastructure
Renewable energy capacity and energy security are not the same thing. Examine.

Examine

  • 15 marks
  • 8 min
  • 250 words
  • Medium

The Hindu

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Renewable Capacity vs Energy Security: Concept

  • Renewable energy capacity = installed MW.
  • Energy security = reliable, affordable, uninterrupted supply (usable MWh when needed).
  • India’s pattern—high solar share in capacity but low contribution during evening peaks—reveals the gap.

Capacity without Dispatchability

  • Intermittency Constraint Solar/wind output is time- and weather-dependent, misaligned with demand peaks.
  • Curtailment Paradox Instances of renewable curtailment show surplus capacity alongside unmet demand, implying installed MW ≠ deliverable MWh.
  • Grid Stability Needs Without balancing resources, high RE penetration can destabilise frequency and supply (CEA reports).

Security Requires Storage & Flexibility

  • Storage Deficit Limited Battery Energy Storage Systems (BESS) relative to ~250+ GW peak demand constrains load shifting (day → evening).
  • Dispatchability as Core In shocks, systems rely on coal/gas hydro flexibility, not intermittent RE—highlighting that security = on-demand supply.
  • Ancillary & Market Gaps Underdeveloped ancillary services and Time-of-Day pricing weaken system responsiveness.

Persistence of Import Dependence

  • Sectoral Mismatch RE growth is power-centric, while imports are driven by transport (oil) and industry.
  • Continued Vulnerability High dependence on crude, gas, and coal imports persists despite RE expansion—capacity growth hasn’t translated into import substitution.

Qualification

  • Positive Trajectory Falling RE costs, Green Hydrogen Mission, and PLI schemes indicate long-term potential.
  • Climate Variability Heatwaves and weak monsoons raise demand when RE delivery systems are weakest, widening the gap.

Conclusion

  • Renewable capacity is necessary but not sufficient for energy security.
  • True security requires storage, grid integration, flexible generation, diversification, and reserves—shifting focus from installed capacity to reliable delivery.