Technical Visit
Date: 19.05.2009

TRAKYA ELEKTRİK
Natural Gas Combined Cycle
Power Plant

The Trakya Elektrik Power Plant is the first Build-Operate-Transfer (BOT) power plant brought to operation in Turkey using foreign capital and applying international environment standards. This 478 MW gas-fired, combined-cycle power plant  will contribute an annual output of 3.6 billion kilowatt-hours( 3.5% of Turkey’s energy supply) to meet the fast-growing needs of the Turkish economy.

Output of the Trakya Elektrik Power Plant will be a nominal 478 MW. The plant is designed for centrally controlled , automatic operation allowing minimum staffing levels. The plant is designed for base load operation at an expected efficiency of approximately 52% and will have the capability for rapid load response and fast starting after shutdown.

Two 154 MW Siemens V94.2 gas turbines are individually  coupled to separate generators and exhaust into a Heat Recovery Steam Generator (HRSG). Steam produced by the HRSG is fed into a 182 MW triple pressure steam turbine coupled to a generator. The gas turbines have the capability during operation to change from natural gas to distillate fuel as a back up if required. Storage facilities will have sufficient fuel for 15 days of full load operation.

COMBINED CYCLE GAS TURBINE TECHNOLOGY
CCGT technology is more efficient in generating power than conventional single cycle power plants. Using gas turbines, CCGT Technology can achieve a thermal efficiency approaching 55% compared with 37% in the most efficient coal plants. This represents a 45% reduction in fuel consumption per kWh generated. Natural gas is delivered to the site by pipeline from the BOTAŞ Liquid Natural Gas(LNG) Terminal adjacent to the power plant.