Sectors
Power
Sub Sectors
Hydroelectric
Services
Design & Engineering
Location
Madhya Pradesh, India
The Tawa Hydropower Project is a 2 x 6.75 MW installation located downstream of the Tawa dam in Hoshangabad district of Madhya Pradesh. The project is situated on the left bank irrigation canal outlet of Saddle Dam II of the Tawa dam, which was completed in 1975 for irrigation purposes.
The scheme harnesses the head available between the reservoir water level and the irrigation canal by routing regulated canal releases through a power station before discharging the water back into the canal system. The intake structure, water passage and powerhouse were designed as a single monolithic concrete structure, eliminating the need for long water conductor systems and surge shafts. This compact configuration enabled efficient utilisation of available head and discharge within a constrained site.
Site works commenced in February 1995. Pre commissioning tests were successfully completed for the first unit in January 1997 and for the second unit in March 1997. The project was implemented within a short execution timeframe for a hydropower scheme of this scale.
TCE’s scope
TCE was responsible for engineering services from feasibility through commissioning. The scope included site investigations and preparation of the feasibility report, followed by detailed engineering for civil, hydro mechanical and electrical works.
TCE assisted in obtaining statutory clearances from government agencies, prepared bid documents and provided pre tendering support. The scope also covered inspection and expediting during execution and support during commissioning and testing of both generating units.
Impact
The Tawa Hydropower Project demonstrates efficient recovery of energy from irrigation releases through a compact and integrated design approach. With an installed capacity of 2 x 6.75 MW, the station achieves an average annual generation of 55.6 million units, with a dependable generation of 43.7 million units at 75 percent reliability.
Each unit is equipped with a vertical axis Kaplan turbine designed for a discharge of 52 m³ per second, operating over a head range of 7.0 m to 21.0 m, with a rated head of 15.6 m and a rotational speed of 214.3 rpm. The project reinforces the role of engineering optimisation in delivering fast track hydropower projects on irrigation infrastructure while maintaining operational efficiency.
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