Chapter 4: The UK Energy Research Centre Review of the Costs and Impacts of Intermittency.

Chapter 4 of the book "Renewable Electricity and the Grid: The Challenge of Variability," edited by Godfrey Boyle is presented. It offers overview of fundamental concepts related to power system's reliability and operation in Great Britain. It explains the changes when intermittent generation is brought in. It also discusses the findings of the Energy Research Center regarding the costs and impact of intermittency.