Coal, Gas

GE, Toshiba Team For H Technology

Issue 8 and Volume 102.

GE, Toshiba Team For H Technology

General Electric and Toshiba Corp. have signed a risk and revenue sharing agreement covering all future sales of the H System combined-cycle power block, which is designed to break the 60% thermal-efficiency barrier while generating up to 480 MW of electricity.

The first H System gas turbine is undergoing extensive factory tests in Greenville, S.C. where it successfully operated under full-speed, no-load test conditions in mid-May. Full-load power plant tests are planned for 2000 with the first commercial power plant expected to be operational in 2001.

H System combined-cycle power blocks are based on a technology platform in which the gas turbine buckets and nozzles are steam-cooled by an integrated steam system. Steam cooling of the turbine airfoils enables higher firing temperatures–2,600 F–and efficiency improvements. Advanced emission control systems will enable the H System to meet strict environmental standards.

GE will continue to design and manufacture the turbine components and combustion system under the agreement with Toshiba. p