TWAD's Big Leap: PPP Model to Power Up Water Efficiency

For the first time, the Tamil Nadu Water Supply and Drainage (TWAD) Board will implement a public-private partnership (PPP) model to replace over 228 outdated, high-capacity pump sets across 20 Combined Water Supply Schemes (CWSS) in the state. The initiative aims to enhance energy efficiency and ensure consistent daily water supply to key regions.

A tender for the project will be issued within a week, with the work order expected by August or September, pending approval from the Tamil Nadu Infrastructure Development Board. According to TWAD officials, electricity accounts for nearly 55% of the Board’s operating expenses, largely due to the use of aging pump sets—many over 15 years old—operating at just 50% efficiency.

The new pump sets, each above 50 HP, are expected to achieve a minimum energy efficiency of 80%, potentially reducing annual power costs by approximately ₹60 crore. The project will cover critical areas including Thoothukudi, Pollachi, Perundurai, Sathyamangalam, Tiruchi, and 236 fluoride-affected habitations in Salem.

Under the PPP model, the selected private partner will be responsible for maintaining the new pump sets for five years, with a mandate to ensure at least 25% energy savings. Performance-based incentives will be built into the contract.

A similar PPP model is also being considered for a ₹1,820 crore CWSS project in Pudukottai district.

News by Rahul Yelligetti.