India faces worst September power deficit in decade amid monsoon failure

India grappled with severe power supply constraints throughout September, marking the worst monthly deficit recorded in a decade as multiple weather-related factors converged to strain the grid. The nation recorded peak power shortfalls surpassing 2 gigawatts on more than 15 days during the month, reflecting the severity of the energy crisis.

The primary culprit was an exceptionally weak monsoon season, which severely hampered hydroelectric power generation—a critical component of India's electricity mix. Simultaneously, above-normal temperatures across large swathes of the country elevated cooling demand, forcing households and businesses to draw more heavily from the grid during peak hours.

The dual pressure of reduced renewable generation and surging demand created a perfect storm for India's power sector. Hydropower plants, which typically benefit from monsoon-driven rainfall, saw significantly lower water inflows, forcing operators to curtail output when the nation needed supply most.

The September figures underscore India's vulnerability to weather fluctuations as it pursues its energy transition. While the country has expanded renewable capacity in recent years, the reliance on monsoon-dependent hydropower and weather-sensitive demand patterns continues to pose challenges to grid stability during critical months.