Cibalapulang 2 & 3 Mini Hydro Power Plant

Location

Cianjur, West Java

Client

PT Sasangka Hidro Barat

 

Cibalapulang 2 & 3 Mini Hydro Power Plant in Cianjur, West Java, are built by taking advantage of Cibalapulang river by using Run Off River System. Cibalapulang 2 Mini Hydro Power Plant’s Civil Building consist of 3 metres tall round-shaped parabolic weir with cyclope concrete construction, 3 intake doors, 54 x 16,2 m sandtrap with 3 drain doors, 1700 m long open reinforced concrete waterway with 2,09 m water level, waterway landfill with rock (2V : 1H) and soil (1V : 2H), 65 meters water gutter bridge with 248 MPa steel profile construction holding two Ø3 m steel pipes, 35 x 12 x 8,34 m headpond with reinforced concrete construction, using 30 Ø80 cm pile for 15 meters deep, headpond spillway with reinforced concrete and rock wall construction, 5 block anchor structure placed for Ø2,7 m penstock pipe, Power House structure with steel profile (BJ-37) and crane capacity of 45 tons, and tailrace as drain. Generally, Cibalapulang 3 Mini Hydro Power Plant’s Civil Buildings are similar to those in Cibalapulang 2, only the gutter bridge is using closed channel, the closed portion on top is used as access path, also Ø80 cm contiguous borepile for 20 m deep with permanent ground anchor with 20 tons capacity as Cibalapulang 3 Mini Hydro Power Plant’s headpond cut reinforcement. Annual energy in Cibalapulang 2 with Hnetto = 57,60 m and dependable discharge of 14,51 m3/s is 36,532,689 kWh/year and Cibalapulang 3 with Hnetto = 55,58 m and dependable discharge of 13,30 m3/s is 32,200,171 kWh/year.