Integrating intermittent renewable energy technologies with coal-fired power plant, CCC/189

Author(s): Stephen Mills

Ref: CCC/189
ISBN: 978-92-9029-509-9
Published Date: 01/10/2011
No. of Tables: 16
No. of Figures: 16
No. of Pages: 85


Historically, coal-fired power plants have faced competition from other forms of power generation such as nuclear, natural gas and oil. Like most coal-fired plants, many of these were designed to operate primarily on base load. However, competition is now increasingly coming from a range of renewable energy sources that include biomass, geothermal, hydro, solar, and wind. Unlike conventional power plants, several of these (particularly wind and solar power) are wholly dependent on prevailing weather patterns and consequently only generate electricity on an intermittent/variable basis. Changes in operating patterns mean that many existing coal-fired power plants no longer operate solely on base load, but are now subject to two-shifting or some other irregular form of operation. Switching a plant originally designed for base load can have implications in a number of areas that include plant economics, operation and performance. Environmental performance may also be impaired. This report discusses the growing level of intermittent renewable energy in the global power sector and examines the potential impact on associated coal-fired plants that have been obliged to change their mode of operation.

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