Tamil Nadu is bracing for a surge in electricity demand as temperatures soar across the state. Power authorities are set to maximize output from coal-based thermal plants to ensure uninterrupted supply during the upcoming peak summer period when consumption typically spikes. The state’s thermal power generation network, boasting an installed capacity of 5,120 MW, comprises major plants in North Chennai, Mettur, and Thoothukudi.
At present, these plants are collectively generating around 84 million units of electricity per day, operating at an average Plant Load Factor (PLF) of 60% to 75%. However, the recently-commissioned 800 MW unit at North Chennai Stage III is currently running at about half its capacity. Officials are planning to increase the PLF across thermal units by an additional 5% to 10% to meet the expected peak demand, aiming to boost generation significantly and reduce reliance on costly power purchases from private suppliers to manage costs effectively.
Operational readiness has been reinforced across the network, with senior engineering staff instructed to closely monitor plant performance, focusing on critical components like boilers and turbines. Preventive maintenance and continuous oversight are being prioritized to prevent any disruptions in generation during the high-demand period. Efforts are also underway to gradually enhance output from the North Chennai Stage III unit to optimize its capacity.
On the fuel front, the state currently has sufficient coal reserves to sustain operations for nearly four weeks. Regular coal supplies are ensured through long-term agreements with domestic producers, guaranteeing a steady fuel inflow. Additional shipments are anticipated soon, further bolstering stock levels and reducing the risk of shortages. While imported coal is still utilized in certain units, including those at North Chennai Stage III and Mettur, steps are being considered to transition more units to domestic coal to reduce import dependence.
Improved availability and quality of locally sourced coal have paved the way for decreasing reliance on imports. With these measures in place, Tamil Nadu aims to uphold grid stability and efficiently meet the escalating electricity demands during the summer months.
