Siemens awarded contract to supply 15 gas turbines for Taiwan Power Co.

Siemens Power Corp. is working to fill a new contract for 15 gas turbines and other power generation equipment for what will become Taiwan`s largest combined-cycle power plant. The Taiwan Power Co. facility will be capable of producing 2,364 MW of electricity. Siemens values its contract at more than (US)$500 million. At least eight of the 15 gas turbines will be manufactured, assembled and shipped to Taiwan from Siemens worldwide manufacturing headquarters for 60-Hz cycle power generation equipment in Milwaukee, Wis., USA.

When Taiwan Power`s new plant begins full combined-cycle operation in 1998, it will become the world`s largest combined-cycle power plant for 60-Hz cycle generation, exceeding by nearly 1,000 MW the Midland combined-cycle plant in Jackson, Mich., USA, which will fall into second place. The power plant will be built at Hsinta, on the island`s southwest coast.

This is the second contract Siemens has received from Taiwan Power. The first was for four V84.2 gas turbines, which were exported to Taiwan Power`s Nanpu combined-cycle power plant in 1992. The first four gas turbines, totalling 100 MW, went on line in June 1993 and have more than 7,000 hours in service already. When completed in 1996, the plant will have a 920-MW capacity. Steam turbine systems are being erected and will later be coupled with the gas turbines. The gas turbines will initially be fired with distillate fuel until natural gas becomes available.

The first of the Hsinta combined-cycle plant gas turbines is scheduled to begin commercial, simple-cycle operation by mid-1995, with the last unit in place by July of 1996. Siemens is also supplying five 173-MW steam turbines, 15 heat recovery steam generators (HRSG), plant instrumentation and controls. Plant construction will be provided by local Taiwan industries. NEM of the Netherlands will build the 15 HRSGs. Auxiliary equipment, amounting to approximately 15 percent of the total contract value of the plant, is being locally subcontracted.

Both power plants are part of Taiwan Power`s long range development program, working toward its goal of extending generating capacity to 34,000 MW by the year 2000. Installed capacity in 1993 was 19,355 MW.

Taiwan Power is installing combined-cycle plants in an attempt to stay ahead of the steady increase in electricity demand. Approximately 60 percent of the total capacity of a combined-cycle block can be made available in a little more than one year, using simple-cycle operation of the gas turbosets. The HRSGs and steam turboset can then be added to allow all the gas turbines of a block to be converted to combined-cycle operation, bringing the block to 100 percent output. Taiwan Power said combined-cycle plants were chosen for their fast start-up and rapid load pick-up capability.