Perak Grati Generation Business Unit at A Glance
Perak-Grati Generation Business Unit operationally main office is located in Desa Wates, Kec. Lekok Kabupaten Pasuruan which consist of Perak Steam Power Plant in Surabaya, Grati Combined Cycle Power Plant and Gas Power Plant in Pasuruan.
Perak Power Plant is located in six hectare area of the industrial and business area near Tanjung Perak Harbour, northern coast of Surabaya, East Java. Plant's commercial operation commenced in 1964 when the two steam power plant (SPP) units (Unit 1 and Unit 2) were brought into commercial service to meet the electricity demand of Surabaya and other eastern Java region. Due to their low efficiency, however, they have not been used since 1995. The other units (Unit 3 and 4), are still being operated until now.
Grati Power Plant consist of one unit of combined cycle power plant (PLTGU) and three gas turbine generators for use in open cycle (PLTG). The gas turbine has been designed for dual firing using both natural gas or high speed diesel oil.Since October 2009 Grati Power Plan received 60 Bbtud of natural gas from Santos PTE LTD. But Grati still using HSD, sent from offshore facility via tanker (approximately 4 km from Grati location). Initial operation GT#2.1,#2.2 dan #2.3 since 2002.The power plant is build in a 70 hectare site in Pasuruan, which made up 35 hectares of natural Grati coast area and 35 hectares of reclaimed land.