The UK and other EU countries are concerned to deliver secure, sustainable and affordable electricity, to meet challenging targets for decarbonisation and renewable energy. The UK Government has consulted and concluded that the present electricity market arrangements will not deliver all three...

The UK Government proposes offering long-term Feed-in-Tariffs (FiTs) to low-carbon generation to reduce risk and encourage new entrants. Their preference is for a Contract-for-Difference (CfD) or a premium FiT (pFiT) for all generation regardless of type. I argue that neither is suitable for...

The supply function equilibrium provides a game-theoretic model of strategic bidding in oligopolistic wholesale electricity auctions. This paper presents an intuitive account of current understanding and shows how welfare losses depend on the number of firms in the market and their asymmetry....

The traditional measure of market power is the HHI, which gives implausible results given the low elasticity of demand in electricity spot markets, unless it is adapted to take account of contracting. In its place the Residual Supply Index has been proposed as a more suitable index to measure...

Electricity transmission has emerged as critical for successfully liberalising power markets. This paper surveys the issues currently under discussion and provides a framework for the remaining papers in this issue. We conclude that signalling the efficient location of generation investment...

Should regulation of potentially competitive elements of network utilities be left with sector regulators or solely subject to normal competition laws? Britain evolved licenses for network activities overseen by regulators while the EU places more emphasis on making sector regulation consistent...

Europe is liberalising electricity in accordance with the European Commission’s Electricity Directives. Different countries have responded differently, notably in the extent of restructuring, treatment of mergers, market power, and vertical unbundling. While Britain and Norway have achieved...

In order to achieve overall economic efficiency, incentive regulation of electricity distribution utilities must address two important and inter-related issues. First, the utilities’ allowed revenues need to be set at correct levels. Second, the access charging mechanism by which the utilities...

The paper surveys the literature and publicly available information on market power monitoring in electricity wholesale markets. After briefly reviewing definitions, strategies and methods of mitigating market power we examine the various methods of detecting market power that have been employed...

Privatisation of utilities is about ownership rather than control. Liberalisation can induce greather improvements in performance than privatisation alone. Regulation id inevitably inefficient, and adequately competitive network services may improve efficiency. History indicates that regulated...