combined cycle-power station This type of plant is flexible in response and can be built in the 100-600 MW capacity range. It produces electrical power from both a gas turbine (ca. 1300°C gas inlet temperature), fuelled by natural gas or oil plus a steam turbine supplied with the steam generated by the 500°C exhaust gases from the gas turbine. The thermal efficiency of these stations is ca. 50 per cent compared with a maximum of 40 per cent from steam turbine coal fired power stations. This type of plant can be built in two years compared with six years for a coal-fired station and 10-15 years for nuclear(这种发电站反应灵活，可在100-600兆瓦容量范围内兴建。它依靠气体涡轮机(入口温度约1300°C的气体)发电，由500℃所产生的蒸汽供应蒸汽涡轮机，使用天然气或石油天然气废气涡轮气体作为燃料。这些站的热效率大约为-50%，而燃煤蒸汽涡轮机最多只有-40%。这种电站类型可以在两年内建成，同等级的煤电站需要6年，核电站需要10-15年。)
