Sectors
Power
Sub Sectors
Hydroelectric
Services
Design & Engineering
Location
Karnataka, India
The Shahapur Mini Hydel Schemes comprise 5 canal based hydropower installations located along the Shahapur Branch Canal within Shahapur taluk of Karnataka. The schemes are grouped within a stretch of approximately 15 km and together have a total installed capacity of 6600 kW, comprising 4 schemes of 1300 kW each and 1 scheme of 1400 kW.
Each scheme harnesses available canal drops through a compact layout consisting of canal bank raising, diversion weirs, power canals, intake structures, short penstocks, single unit powerhouses and tailrace canals. The schemes were commissioned between March 1997 and November 1998.
TCE’s scope
TCE was appointed as consultant for detailed engineering of all 5 schemes. The scope included civil engineering design for canal modifications, diversion structures, power canals, intake structures, powerhouses and tailrace systems. TCE also engineered hydro mechanical systems including stoplog gates, trashracks, penstocks and draft tube gates.
Electrical and mechanical engineering included selection and integration of horizontal S type Kaplan turbines, synchronous generators, gearboxes, governors, protection systems, transformers and switchgear. TCE designed the interconnection and evacuation system, including pooling of power at 11 kV and evacuation at 33 kV through a central grid transformer.
Impact
The schemes together generate approximately 30 GWh annually. Each unit operates at rated heads of 6.2 m or 9.8 m with a continuous overload capacity of 120 percent. The project demonstrates scalable canal based hydropower development integrated with irrigation infrastructure.
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