PT. MALEA 2X45 MW

Welcome

PT. MALEA ENERGY

HYDROPOWER

2x45 MW

PART OF THE GROUP

KALLA GROUP

BUKAKA

KMH

MALEA

POSO ENERGY

Profile

We are Background

With the technological development, nowadays the utilization of water resources increasingly diverse. River as abundant water resources in Indonesia became potential alternative for power plants. These are in line with the fact that demand for electricity continues to grow each year.

Saddang rivers in Tana Toraja has an average annual discharge of 129.9 m3 /sec . Thus Saddang river became a river with huge potential for generating electrical energy.

In accordance with the vision and mission of PT Malea Energy, the selection of the construction site in eastern Indonesia aims to develop the region through infrastructure development and hydroelectricity.

Technical

Technical Specification

WEIR

Type : Ogee-Shaped Weir Width Total : 107 m , Width spillway : 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 : K250 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

Powerhouse

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)

Power Plant 2X45 MW

Construction of Power Plant PT. Malea Energy is located in South Sulawesi. Intake location is in Makale Selatan District with coordinates point E.119° 47′ 33″, N. 3° 7′ 44″ & Power House is in Bonggakaradeng District with the coordinates of E. 119° 44′ 54″, N.3° 11′ 25”. With Total power generation capacity 90 MW, Head DAS Saddang, debit ±363 m³/second, Wide area 6.639 km². The PPA term is 30 years with an annual production target of 474 GWh/year.