Technical performance requirements of CCGT plants

Restructuring of the UK electricity supply industry in 1990 has had a fundamental impact upon the traditional methods of planning and operation of the power system. Technical specifications favoured by the vertically integrated industry have been replaced through a progressive move to functional performance based specifications. The paper essentially concentrate on performance requirements for combined cycle gas turbine (CCGT) generating plant of output greater than 50 MW which by virtue of their Generation Licence and Master Connection and Use of System Agreement (MCUSA) are required to meet the functional specification contained in the Grid Code. However, it is important to note that all generators, irrespective of size, should be aware of the general system performance characteristics contained in the Grid Code and should take appropriate account of these factors in the plant design. Engineering Recommendations define requirements for smaller power plants