Context
India’s night-time energy crisis arises from a combination of rapidly rising electricity demand and the inherent absence of solar power generation after sunset, which together create a critical gap in meeting peak evening and night-time power requirements.
Current Situation and Key Developments
- India’s peak electricity demand has reached an unprecedented 256 GW (April 2026).
- A supply shortfall of around 4–5 GW has been recorded during night peak hours.
- Interestingly, daytime demand is being met without shortages, indicating adequate solar generation during sunlight hours.
- However, evening and night hours (post-sunset period) are witnessing stress due to falling renewable output and rising residential cooling demand.
Structural Issue: Solar–Demand Mismatch
- India’s rapid expansion in solar energy (around 150 GW installed capacity) has improved daytime power availability. However, it has also created a structural imbalance:
- Solar power peaks during midday but falls sharply after sunset.
- Electricity demand peaks in the evening due to household cooling needs.
- This results in a “duck curve” type situation, where supply declines while demand remains high.
- Thus, the core issue is not generation shortage, but timing mismatch between supply and demand.
Thermal Generation Constraints
- Coal-based plants, which act as the backbone of night-time supply, have faced operational stress.
- High temperatures have increased forced outages and reduced plant efficiency.
- As a result, available thermal generation has been lower than installed capacity during peak demand hours.
- This has further tightened supply conditions in the evening.
Market Impact
- Electricity spot prices in short-term markets have shown extreme volatility.
- Prices have reached the upper regulatory limit during peak night hours, while remaining low during daytime surplus periods.
- This reflects uneven distribution of power availability within a single day.
Challenges and Way Forward
| Challenges | Way Forward |
| Evening peak demand coincides with the complete absence of solar power after sunset, creating a daily supply gap. | Development of grid-scale Battery Energy Storage Systems (BESS) to store daytime solar energy for evening use. |
| Heavy dependence on coal-based thermal plants for night-time supply leads to system stress during extreme heat conditions. | Improving thermal plant efficiency and heat resilience, along with flexible generation scheduling. |
| Forced and partial outages in coal plants reduce available capacity during peak demand hours. | Strengthening predictive maintenance systems and operational monitoring to reduce unexpected outages. |
| Lack of adequate energy storage infrastructure prevents effective utilisation of surplus daytime renewable energy. | Expansion of pumped hydro storage projects and other long-duration storage solutions. |
| High volatility in electricity prices in short-term markets reflects imbalance between supply and demand. | Introduction of time-of-day tariffs and demand-side management policies to smoothen consumption patterns. |
| Limited flexibility in the grid restricts efficient power transfer from surplus to deficit regions | Expansion of inter-state transmission networks and grid modernisation for better load balancing. |
Conclusion
India’s present electricity challenge reflects a transition-phase issue in the energy sector. While renewable energy expansion, especially solar, has strengthened daytime supply, the lack of storage and flexible backup systems has created night-time vulnerability.
Addressing this requires a balanced approach combining storage infrastructure, grid modernization, and demand management, ensuring that India’s clean energy transition remains both sustainable and reliable.
