Impact of Integrating Renewables and CHP into the UK Transmission Network

TitleImpact of Integrating Renewables and CHP into the UK Transmission Network
Publication TypeTyndall Working Paper
SeriesTyndall Centre Working Papers
Tyndall Consortium Institution


Secondary TitleTyndall Centre Working Paper 24
AuthorsWu, X., G. Strbac, and N. Jenkins
Year of Publication2002

This paper provides an understanding of the significant technical issues for the transmission system that would be associated with the replacement of a substantial proportion of existing generation by Renewables and CHP. This has involved an examination of the voltage profiles and power flows that may occur, together with an examination of reactive power compensation that may be required. An investigation of the likely development of various types of Renewables and CHP has been made, particularly in terms of regional distribution of generators for each type of energy. The considerable volume of information that has been generated and brought together to provide a comprehensive overview of the potential of Renewables and CHP generation. Using this information the possible effects of integrating the Government's 2010 Renewable and CHP targets into the UK network, in terms of steady state operation of the UK transmission system, have been investigated based on typical operation cases, i.e. winter peak and summer valley loads. The results of the studies indicate that the UK transmission network can accommodate the 10% target for renewables and the 10GWe of CHP by 2010, but only with appropriate reduction in the output of existing conventional generation. Clearly, the changes in output of central generation are critical for the stable operation of the transmission network. The studies indicate that power losses and transfer of power across system boundaries, particularly between North and South, may be decreased due to introduction of significant quantities of Renewables and CHP generation in the South of the UK. In the studies, the voltage profiles were improved by installation of shunt reactive power compensators in the network.

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