Malea Energy Hydropower

Power Production

Malea HEPP 2x45 MW

-

General

The Malea 2x45 MW hydropower project is one of the government's new renewable energy projects for the acceleration of 35,000 MW, this project has contracted with PLN on May 4, 2015 with the BOO (Build Operate Own) type. This development was financially supported by the Syndicated Banks BNI and BRI, and was stated in the Credit Agreement on June 29, 2016 with a total funding of USD 180 million Loan and USD 45 Million Equity.


Technical Specifications


Weir

Type : Ogee-Shaped Weir , Wide : 94.5 m , Height : 5 m , Capacity : 3,837 m3/s (Q1000 period) , Structure Type : Reinforced Concrete

SAND TRAP

Wide : 22 m, Building Length : 138.48 m, Structure Type : Reinforced Concrete

INTAKE

Type : Opened with Gate, Discharge Plan : 90 m3/s, Elevation Floor : +724.0 m.asl, Structure Type : Reinforced Concrete,

HEADRACE TUNNEL

Type : U-Shape, Discharge Plan : 90 m3/s, Average Dia. : 6.5 m, Wall : K300 reinforced concrete /shotcrete 15cm ~ 40cm thick ,Length : 8.49 km Average Slope : 3.2% – 5.5%, Average Water Velocity Design : 1.5 m/s – 2.5 m/s

PENSTOCK

Dia. Penstock : 4.5 m, Pipe Lenght :1075 m, Pipe Thickness :32mm, 34mm, 36mm, 38mm, 40mm, 42mm, 44mm, 46mm, 48mm, 50mm, s/d 54mm, Pipe Mat’l : Q345R & 07MnMoVr, Backfill : Concrete K-300

Air Cushion Surge Chamber

Type Surge Tank : ACSC (Air Cushion Surge Chamber), Type : U-Shape, Dim. (PxLxT) : 110m x10.4mx15.2 m, Dim.Gallery (PxLxT) : 15 m x 5 m x 5.7 m, Wall : Steel Plate and reinforced Concrete

Power House

Type : Semi Underground, Reinforced Concrete and Steel Structure, Type Hoist : (OHC) Cap. 150 T, 50 T, and 10 T., Dimension (PxL) : 43 m x 18 m, Elv. Center Turbin : +293.6 m.asl

Turbine

Type : Vertical Francis, Series : SF45-10/3900, Rated output : 49.5 MW, Rated speed : 600 r/min, Runaway speed : 1020 r/min, Rated discharge : 12.95 m3/s, Brand : Toshiba

Transformer

Type : 3 phase winding transformer suitable, For outdoor installation, oil immersed, ONAN/ONAF, Rated Voltage : 11/150 kV, Rated Capacity : 60 MVA / unit

Transmission

Type Switchyard : Gas Insulated Substation (GIS) & Air Insulated Substation (AIS) Transmission line : Malea – Makale, Panjang : 22.24 km, Rated Voltage : 150 kV, Conductor : ACSR (double zebra), Location : Rano Village Feeder : 150 kV (Double bus)

-

Our Group