Share of Clean Energy in Electricity Still Below 30%
India’s Clean Energy Paradox: Installed Capacity vs Actual Supply
Context
India has achieved a major milestone by reaching 50% installed capacity from non-fossil fuel sources, five years ahead of its Nationally Determined Contributions (NDCs) under the Paris Agreement. However, the actual share of clean energy in electricity generated and supplied remains below 30%, raising concerns over efficiency and integration.
Installed Capacity vs Actual Generation
| Indicator | 2014 | 2025 |
| Share in Installed Capacity (RE + nuclear + hydro) | ~30% | 50% |
| Share in Actual Generation | ~17% | ~28% |
- Installed Capacity (June 2025): ~484 GW total
- Clean Energy Share: Solar, wind, biomass, hydro (large & small), nuclear.
Why the Gap?
1. Low Capacity Utilisation Factor (CUF):
- CUF = % of installed capacity actually generating power.
- Solar CUF: ~20%
- Wind CUF: 25–30%
- Coal CUF: ~60%
- Nuclear CUF: ~80%
➡ Despite high capacity, actual output from renewables is limited.
2. Coal as Base Load Source:
- Coal still meets ~75% of India’s electricity needs.
- Critical for round-the-clock power availability.
- Solar power drops after sunset, increasing coal dependence in evenings.
Challenges to Integration
- Lack of flexible grids.
- Absence of large-scale battery storage.
- Flat electricity pricing (same tariff day/night).
- Inadequate smart grid infrastructure.
- Seasonal and diurnal variability in renewables.
Suggested Solutions
1. Smart Grids & Differential Tariffs
- Introduce time-of-day pricing: cheaper power during daytime to promote solar use.
- Requires robust grid automation and digital metering.
2. Battery Storage Systems
- Store excess solar/wind energy during the day.
- Release during peak demand (evenings/nights).
3. Hybrid Energy Models
- Combine solar + wind + hydro + storage for stable power supply.
- Encouraged in recent policy pushes for round-the-clock (RTC) renewable projects.
Significance
- Clean energy leadership: India progressing on its climate goals.
- But to move from capacity addition to real decarbonisation, the focus must shift to:
- Efficient utilisation
- Technology integration
- Demand-side management
- Lays foundation for energy transition, but real impact will depend on policy innovation, infrastructure, and behavioral economics.
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