New integrated scheme of the closed gas-turbine cycle with synthesis gas production was proposed. A comparative exergy analysis of the traditional gas-fired power generation cycle and proposed integrated gas-turbine cycle with synthesis gas production was carried out. The exergy losses in compressors and turbines are evaluated by using intrinsic coefficients. It has been shown that the integration of power generation and synthesis gas production technologies is an effective method to increase the electric energy generation by 9-12% or reduce methane consumption in its conversion into synthesis gas by 18-23%. Such integration is especially favourable if synthesis gas production is considered at initial stage of liquid synthetic fuels producing. (C) 2003 Elsevier Ltd. All rights reserved.