Issues and Options for Restructuring Electricity Supply Industries

The electricity supply industry is highly capital-intensive, whose success depends critically upon the management of its investment. In most developing countries investment is poorly managed, poorly maintained, and often inadequate. Inadequate regulation or political control lead to low prices that undermine the finance of investment and give poor incentives for management and operation. The paper argues that regulation must be carefully designed to provide efficient incentives and adequate guarantees to sustain investment and operations and only then will privatisation improve performance and benefit consumers. The paper discusses the evidence for these claims, the circumstances required for full unbundling and liberalisation to be successful, and those where the Single Buyer Model or continued, ideally reformed, state ownership, may be preferable, at least until conditions improve.Electricity, reform, restructuring, regulation, developing countries

Regulatory Challenges to European Electricity Liberalisation

The European Commission proposed to reform the Electricity and Gas Directives to improve access to transmission, increase cross-border capacity, and fully open the electricity and gas markets. The California electricity crisis has weakened support for liberalisation, removed the commitment to full market opening, and raised concerns over supply security. Providing adequate reserve capacity is risky in a competitive wholesale electricity market without suitable contracts, and unattractive to oligopolists unless they face a credible entry threat from IPPs. Ending the domestic franchise could remove the counterparty for the contracts required for adequate investment to sustain competitive pricing. Gas liberalisation is key to making electricity markets contestable and reducing pressures on scarce electricity interconnection capacity. Environmental concerns increase uncertainty and further deter entry, while raising other policy issues that need to be addressed. Compared to the US, much of the EU lacks the necessary legislative and regulatory power to mitigate generator market power. Unless markets are made more contestable, transmission capacity expanded and adequate generation capacity ensured, liberalisation may lead to higher prices.Competition, regulation, electricity, contracts, market power

Electricity Liberalisation in Britain: the quest for a satisfactory wholesale market design

Britain was the exemplar of electricity market reform, demonstrating the importance of ownership unbundling and workable competition in generation and supply. Privatisation created de facto duopolies that supported increasing price-cost margins and induced excessive (English) entry. Concentration was ended by trading horizontal for vertical integration in subsequent mergers. Competition arrived just as the Pool was replaced by New Electricity Trading Arrangements (NETA) intended to address its claimed shortcomings. NETA cost over £700 million, and had ambiguous market impacts. Prices fell dramatically as a result of (pre-NETA) competition, generating companies withdrew plant, causing fears about security of supply and a subsequent widening of price-cost margins.electricity, liberalisation, market design, market power

Why Tax Energy? Towards a More Rational Energy Policy

The same fuels are taxed at widely different rates in different countries while different fuels are taxed at widely different rates within and across countries. Coal, oil and gas are all used to generate electricity, but are subject to very different tax or subsidy regimes. This paper considers what tax theory has to say about efficient energy tax design. The main factors for energy taxes are the optimal tariff argument, the need to correct externalities such as global warming, and second-best considerations for taxing transport fuels as road charges, but these are inadequate to explain current energy taxes. EU energy tax harmonisation and Kyoto suggest that the time is ripe to reform energy taxation.tax, energy, oil, optimal tariff, externalities, exhaustible resources, global warming, road charges

Auctions and trading in energy markets -- an economic analysis

Auctions are playing an increasingly prominent role in the planning and operation of energy markets. Comparing the New Electricity Trading Arrangements to the former electricity Pool in England and Wales requires some analysis of the relative merits of uniform versus discriminatory pricing rules, and use of the gas network in Britain and electricity interconnectors around Europe is allocated on the basis of auction results. In this paper we discuss the changes in the trading arrangements in the electricity industry in England and Wales as well as some of the results to date. We also look at the wider issue of using auctions to replace regulation by market solutions for managing the natural monopolies in energy markets.auctions, electricity, gas, interconnectors, networks

Designing an electricity wholesale market to accommodate significant renewables penetration: Lessons from Britain

The wholesale market has to address two major market failures - inadequate carbon prices in the EU ETS, and the learning externalities and missing futures markets for energy and ancillary services needed to guide flexible dispatchable plant. The paper discusses the importance of locational price signals to guide investment, the need to reform transmission pricing and renewables support. The case for capacity auctions for renewables and quantifies the justifiable level of renewables support. These proposals are consistent with the EU Clean Energy Package, but the nature of the renewables target and its financing should change

The long-run equilibrium impact of intermittent renewables on wholesale electricity prices

High levels of low variable cost intermittent renewables lower wholesale electricity prices, and the depression of these prices could legitimately be recovered from consumers, preferably through capacity payments. Given that renewables are frequently subsidized for their learning benefits and carbon reduction, this paper asks what part of these subsidies should be recovered from final consumers. In long-run equilibrium, renewables have no impact on the number of hours peaking capacity runs, and its impact is to displace largely baseload capacity. The fall in competitive prices is considerably less than the fall in fossil operating costs and provides a case for only a modest share of total subsidies to be charged to electricity consumers. The paper quantifies the amount that can legitimately be charged

Evaluating the case for supporting renewable electricity

Renewable electricity, particularly solar PV and wind, creates external benefits of learning-by-doing that drive down costs and reduce emissions. The Global Apollo Programme called for collective action to develop renewable energy. This paper sets out a method for assessing whether a trajectory of investment that involves initial subsidies is justified by the subsequent learning-by-doing spillovers and if so, computes the maximum justifiable additional subsidy to provide, taking account of the special features of renewable electricity – geographically dispersed and variable quality resource base and local saturation. Given current costs and learning rates, accelerating the current rate of investment appears globally socially beneficial for solar PV in most but not all cases, less so for on-shore wind. The optimal trajectory appears to involve a gradually decreasing rate of growth of installed capacity

How to judge whether supporting solar PV is justified

Renewable electricity, particularly solar PV, creates external benefits of learning-by-doing that drives down costs. If eventually economic, these technologies will thereafter create social value by reducing carbon emissions with value greater than the cost of abatement. This paper sets out a method for assessing whether a trajectory of investment that involves initial subsidies is justified by the subsequent learning-by-doing spillovers and whether it is worth accelerating current investment rates. Given current costs and learning rates, accelerating the current rate of investment appears globally socially beneficial, particularly if that investment is deployed in high insolation locations