Kapaia Power Station, Hawaii

Ken Daubert
Plant Superintendent
KIUC – Kapaia Power Station
Lihue, Kauai, Hawaii, USA

“IST’s Once Through Steam Generator (OTSG) is highly efficient in recovering our gas turbine’s exhaust heat in the form of super-heated steam. The steam is injected back into the gas turbine
in two ways; first, adding mass flow to the combustor which increases MW output without burning additional fuel, and secondly, into the fuel nozzles which greatly reduces NOx emissions and demand on the plant’s SCR system. Since commissioning in 2002, maintenance on this highly reliable boiler has been minimal, and the fast startup time enables us to get the power plant on line, with full steam injection in less than one hour.”