The supply function model of the English electricity spot market is extended to include equilibrium in a contract market in the presence of entry threats, both of which have dramatic effects on the determination of equilibrium. The paper presents an analytically tractable model which can be...

The market power of the incumbents means that average pool prices are set by the costs of entry. Reforms which raise entry costs will be proposed and should be resisted. Reforms to capacity payments may have little effect on prices, but could affect system security. The values of Value of Lost...