The 720MW Karot Hydropower Project is designed exclusively for power generation under Build Own Operate Transfer (BOOT) basis with a concession period of 30 years. It has an asphalt core rock-fill dam of 95.5 m height, a separate spillway, intake structure, 3 diversion tunnels, 4 power tunnels and a surface power house containing 4 x 180 MW Francis turbines with warranted output of 116.1MW, average annual electricity output of 3,206 million kW·h, and annual utilization hours of 4,452h.
The dam site controls the drainage area of 26,700km2; having long term average runoff of 819m3/s and long term average annual runoff of 25.83 billion m3. The project is a single power generation task hydropower complex, with reservoir’s Full Water Level (FWL) of 461m, reservoir storage at FWL of 152 million m3.
Construction Time Line: The EPC Contract’s construction period is 5 years plus Defects Notification Period of 2 years for civil works and 3 years for E & M Works. Trial run and commercial operation is planned at the end of 5th year.
EPC Contractors: The Civil Works and E & M Works are two separate Contracts with Civil Works Contractor bearing the responsibility to coordinate with the E & M Contractor for timely delivery of the project. Following are the EPC Contracts:
1. Engineering and Construction Contract: Three Gorges Economy Development Company (TGDC)
2. Equipment Supply Contract: China Machinery & Electric Company (CMEC).