How Have Unseasonal Rains Affected Power Demand in Tamil Nadu?
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Synopsis
Unseasonal rains in Tamil Nadu have led to a remarkable reduction in power demand, providing relief from the sweltering summer heat. Explore how these weather changes have impacted energy consumption and the state’s electricity infrastructure.
Key Takeaways
- Unseasonal rains have led to a drop in power demand.
- The peak demand in April 2025 was 20,148 MW.
- Energy consumption fell from 12,648 million units to 11,986 million units.
- Daily consumption dropped below 400 million units on fewer days than last year.
- Tangedco attributes the decline in demand to cooler temperatures.
Chennai, May 12 (NationPress) Unexpected rainfall across numerous regions of Tamil Nadu has provided relief from the oppressive summer temperatures and resulted in a significant decrease in electricity consumption during April and the early part of May this year.
According to data from the Southern Regional Load Despatch Centre (SRLDC), the peak power demand for Tamil Nadu in April 2025 reached 20,148 MW on April 24, which is considerably lower than the Tamil Nadu Power Distribution Corporation Ltd (Tangedco)'s earlier forecast of 21,943 MW for that month.
Tangedco had projected that the demand would exceed the previous record of 20,830 MW, established on May 2, 2024. In contrast to last summer, when the power demand escalated due to an unyielding heatwave, this summer has been more temperate, with intermittent rain across various districts, including Chennai.
These showers have not only moderated temperatures but also lessened the reliance on cooling devices in homes and businesses, thereby reducing the strain on the state's power grid.
Power demand statistics further support this observation. In April 2024, the demand crossed the 20,000 MW threshold on eight different occasions. However, in April 2025, this milestone was reached only once. The average peak demand for April last year was 19,482 MW, while this year it dropped to 18,354 MW, reflecting a nearly six percent decline.
Energy consumption data mirrors this trend. In April 2024, the state utilized 12,648 million units, whereas in April 2025, this figure fell to 11,986 million units. Daily energy consumption also decreased from an average of 421 million units per day in April 2024 to 399 million units in April 2025.
Interestingly, daily consumption exceeded 400 million units on 28 days in April 2024, while in April 2025, it only occurred on 16 days.
A senior official from Tangedco confirmed that the reduction in demand is closely linked to the current weather patterns.
“The extensive use of air conditioning is a significant factor affecting peak demand. With cooler temperatures this year, air conditioner usage has noticeably decreased,” the official stated.
With the Southwest Monsoon likely to approach soon, power management teams are hopeful about sustaining stable supply conditions in the forthcoming months.
Point of View
It's crucial to recognize the broader implications for energy management and policy. The significant drop in electricity consumption due to unseasonal rains highlights the need for adaptable strategies in response to changing climate patterns. At NationPress, we remain committed to delivering accurate and insightful reporting on such vital issues.
NationPress
10/09/2025
Frequently Asked Questions
What caused the drop in power demand in Tamil Nadu?
The drop in power demand was primarily due to unseasonal rainfall, which provided relief from the summer heat and reduced reliance on cooling appliances.
How much did the peak power demand decrease?
The peak power demand in April 2025 was 20,148 MW, significantly lower than the projected 21,943 MW and the previous year's average of 19,482 MW.
What impact did the rains have on energy consumption?
Energy consumption fell from 12,648 million units in April 2024 to 11,986 million units in April 2025, reflecting a change in cooling appliance usage due to cooler temperatures.
How has Tangedco responded to this change?
Tangedco officials confirmed that the decline in demand is closely related to weather conditions, particularly the reduced use of air conditioners.
What are the expectations for the upcoming months?
With the Southwest Monsoon approaching, power managers are optimistic about maintaining stable supply conditions.
