Since the start of commercial operation on October 1st 1994, YTL Power Services' engineers and technicians have managed all O&M activities at both the Paka and Pasir Gudang power stations, operating them in open cycle mode prior to completion of the water/steam cycle.

The plants are gas-fired using the CCGT (combined cycle gas turbine) concept for optimum efficiency and minimal environmental impact, and consist of three 404 MW generating blocks; two at Paka and one at Pasir Gudang.

As the company gained more and more experienced, YTL Power Services began
extending O&M services to power plants in other countries  - Indonesia,
Singapore and Lebanon.