NCL Energy Ltd, has identified number of hydro-electric power projects from irrigation sources in Andhra Pradesh, Karnataka.
It has executed its first project of 7.5 Mega Watts hydel power project at the head of regulator of Srisailam Right main canal in the village limits of Pothireddypadu near Kurnool District, Andhra Pradesh.
The right main canal takes off from the fore shore of Srisailam reservoir about 60 K.M. up stream of Srisailam dam.
The regulator constructed across the canal has a maximum discharging capacity of 11,250 cusecs.
The releases from this regulator are taken to Banakacherla cross regulator, 16 K.M. down stream of the regulator and distributed through 3 independent regulators.
One for catering the ayacut of Srisailam right branch canal, the other for Telugu Ganga link canal including water supply to Chennai city, and the other for supplementing K.C. canal.
Based on flow duration analysis and techno economic studies, the optimum installed capacity for the scheme is 7500 K.W. with 10% overload.
Accordingly, 3 Nos. of 2500 K.W. T.G. units with 10% continuous over load capacity were provided for the scheme.
The scheme consists of an approach channel in Rock Cut about 100 meters upstream of the regulator with 450 inclination to lead the flow in to powerhouse.
The tail race is connected back to main canal 70 meters down stream of the regulator with a smooth transition.
Powerhouse complex has all amenities for efficient working and effective maintenance.
It has spacious repair bay, clean rooms for master controls, well laid out control panels, auxiliary equipment controls, etc., including station generator as required with high standards of quality.
This project was approved by Non-Conventional Energy Development Corporation of Andhra Pradesh in July, 1999.
The scheme was completed with in a short period of 11 months with the financial assistance from Indian Renewable Energy Development Agency Ltd., i.e., IREDA.