Pergau Hydroelectric Project – Stage 1 and 2

Client:

National Electricity Board(NEB)

Terang pumping station-interior

Description of Project:

The Project consists of an underground power station drawing water from a dam located on the Sg Pergau just downstream of its confluence with the Sg Yong. The flow capture of the scheme is enhanced by the pumped transfer of water from adjoining southern catchments through a 24 km long aqueduct. A re-regulating weir on the Sg Pergau in the vicinity of Kg Lawa will controls outflow from the power station. Principal features of the project include:

• Earthfill dam 77m high, crest length 405m , storage capacity 62.6 x 10 .6m3
• Power intake and concrete and steel lined pressure tunnel
• Underground power station with 4 x 150MW vertical Francis turbines, 495m rated head catchments
• 24km long aqueduct with a number of drop shafts for flow diversion from intervening catchments
• 8 bay double bus 275kV indoor GIS installation, 8km of 275kV transmission line and 30km of 33kV transmission line

Services Provided:

Stage 1: SMEC carried out a full feasibility study including hydrological, survey, geotechnical and environmental aspects, power system studies, preparation of tender designs and tender documents for civil and electrical and mechanical plant contracts.

Stage 2: National Electricity Board of Malaysia commissioned SMEC to review the turnkey Specification and Proposal submitted by Kerjaya Balfour Beatty Cementation Sdn Bhd to design and build the Pergau Hydroelectric Project. Following the SMEC report, NEB asked SMEC to provide specifications for civil, electrical and mechanical works for the 600MW power station and dam to be included in a turnkey contract with KBBC.