Kerala's Solar Paradox: Power Cuts Despite High Solar Adoption
The article investigates why Kerala, despite being a leading state in rooftop solar adoption, is experiencing power cuts. The core issue is a mismatch between solar energy generation (high during the day) and peak demand (high during the evening, 6-11 pm, primarily from domestic consumers). While solar power is exported to the grid during the day, low consumption leads to voltage increases, risking damage. At night, when solar generation ceases, Kerala's electricity utility must purchase power from the national market at higher prices, leading to shortages and increased costs. The article emphasizes that as renewable energy sources increase, the need for energy storage solutions, like battery energy storage systems, becomes critical to bridge this demand-supply gap and ensure stable power supply.
Key Points
- Kerala leads in rooftop solar adoption but faces power cuts due to a demand-supply mismatch.
- Peak electricity demand in Kerala occurs in the evening (6-11 pm) from domestic consumers, not during daytime solar generation.
- Excess daytime solar power can cause grid voltage issues if not consumed or stored.
- Kerala is forced to buy expensive power from the national market at night when solar generation is absent.
- Battery energy storage systems are crucial to store daytime solar power for evening peak demand.
Exam Facts
- Kerala ranks fourth in India for installed rooftop solar capacity.
- Kerala's solar power installed capacity reached 2,508 MW by May 2026, with 2,036 MW from rooftop panels.
- 75% of Kerala's consumers are domestic, leading to evening peak demand.
- India's total installed capacity from all sources is 532 GW, with 150 GW from solar.
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