Unintended Effects of Residential Energy Storage on Emissions from the Electric Power System.

In many jurisdictions, policy-makers are seeking to decentralize the electric power system while also promoting deep reductions in the emission of greenhouse gases (GHG). We examine the potential roles for residential energy storage (RES), a technology thought to be at the epicenter of these twin revolutions. We model the impact of grid-connected RES operation on electricity costs and GHG emissions for households in 16 of the largest U.S. utility service territories under 3 plausible operational modes. Regardless of operation mode, RES mostly increases emissions when users seek to minimize their electricity cost. When operated with the goal of minimizing emissions, RES can reduce average household emissions by 2.2-6.4%, implying a cost equivalent of $180 to$5160 per metric ton of carbon dioxide avoided. While RES is costly compared with many other emission-control measures, tariffs that internalize the social cost of carbon would reduce emissions by 0.1-5.9% relative to cost-minimizing operation. Policy-makers should be careful about assuming that decentralization will clean the electric power system, especially if it proceeds without carbon-mindful tariff reforms

Do Americans Consume Too Little Natural Gas? An Empirical Test Of Marginal Cost Pricing

This paper measures the extent to which prices exceed marginal costs in the U.S. natural gas distribution market during the period 1991-2007. We find large departures from marginal cost pricing in all 50 states, with residential and commercial customers facing average markups of over 40%. Based on conservative estimates of the price elasticity of demand these distortions impose hundreds of millions of dollars of annual welfare loss. Moreover, current price schedules are an important pre-existing distortion which should be taken into account when evaluating carbon taxes and other policies aimed at addressing external costs.

The emergence of markets in the natural gas industry

As countries have deregulated prices and lowered entry barriers in the natural gas industry, many new participants have emerged, promoting competition in the newly created markets. The increased competition has benefited everyone through more efficient pricing and greater choice among natural gas contracts. Four distinctstructural models have emerged in the industry's restructuring. The traditional model (a vertically integrated industry) has been increasingly replaced by models that decentralize the industry along horizontal and vertical lines. With increasing decentralization, regulation of the industry focuses on the pipeline transportation and distribution, the industry segments with natural monopoly characteristics. Regulation aims to protect both end users and participants in the deregulated segments from the market power of companies operating in the monopolistic segments. As a result of deregulation, two major markets emerge: the natural gas market (which facilitates the trading of natural gas as a commodity) and the transportation market (which enables market participants to trade the services needed to ship natural gas through pipelines). Competition and open entry are crucial for these two markets to function efficiently. The transportation market is affected by the market power of pipeline companies, but resale of transportation contracts brings competition to this market and facilitates the efficient allocation of contracts. Intermediaries and spot markets promote efficient pricing and minimize transaction costs. Markets have become more complex with deregulation, and trading mechanisms are needed to ensure the simultaneous clearing of natural gas and transportation markets at minimum cost to the industry. Two main trading models guide transactions: the bilateral trading model (which relies on decentralized bilateral negotiated between market participants) and the poolco model (which relies on a centralized entity to coordinate transactions). Properly applied, both models lead to the same outcome. The bilateral trading model has dominated because of its simplicity of implementation, but the poolco model has great potential once problems of sharing and processing information are addressed.Environmental Economics&Policies,Water and Industry,Economic Theory&Research,Markets and Market Access,Oil&Gas,Water and Industry,Oil Refining&Gas Industry,Markets and Market Access,Access to Markets,Oil&Gas

Rethinking Electricity Restructuring

Electric utility restructuring was initiated in the 1990s to remedy the problem of relatively high electricity costs in the Northeast and California. While politicians hoped that reform would allow low-cost electricity to flow to highcost states and that competition would reduce prices, economists wanted reform to eliminate regulatory incentives to overbuild generating capacity and spur the introduction of real-time prices for electricity. Unfortunately, high-cost states have seen little price relief, and competition has had a negligible impact on prices. Meanwhile, the California crisis of 2000-2001 has led many states to adopt policies that would once again encourage excess capacity. Finally, real-time pricing, although the subject of experiments, has yet to emerge. Most arresting, however, is the fact that restructuring contributed to the severity of the 2000-2001 California electricity crisis and (some scholars also argue) the August 2003 blackout in the Northeast, without delivering many efficiency gains. The poor track record of restructuring stems from systemic problems inherent in the reforms themselves. We recommend total abandonment of restructuring and a more thoroughgoing embrace of markets than contemplated in current restructuring initiatives. But we recognize that such reforms are politically difficult to achieve. A second-best alternative would be for those states that have already embraced restructuring to return to an updated version of the old, vertically integrated, regulated status quo. It's likely that such an arrangement would not be that different from the arrangements that would have developed under laissez faire

Electricity Restructuring and Regulation in the Provinces: Ontario and Beyond

Competitive electricity markets are artificial markets with extensive rules for all participants arising from the complex interconnections of the electricity network. Governments or regulatory agencies oversee the market design process and the operation and maintenance of the market, so market design is necessarily a political process. The conceptual design of the market must recognise the political forces that will operate on the market design process so that the political process will not thwart the intended outcome of the market as it has in some jurisdictions including Ontario. The limited ability of consumers to understand changes in the electricity sector in the short run poses a real constraint on what can be achieved politically. Letting the market set the price means that governments cannot ensure any particular future price level and both theory and experience tell us that prices may increase after restructuring (California, Ontario, Alberta). This makes it difficult to sell restructuring to consumers who will be interested in the price they pay and not much interested in abstractions like efficiency. Another challenge for electricity restructuring is that the starting points differ from one jurisdiction to another and the starting points matter. The problems are different if you begin with a crown monopoly than if you have investor-owned utilities; if expected prices are higher than recent prices rather than lower; if governments have been deeply involved in the electricity sector rather than distant from it; if the public has experience with stable electricity prices rather than fluctuating prices. Finally, the situation in neighbouring jurisdictions matters as well. Restructuring in a low-price jurisdiction surrounded by high prices will increase the prospect of price increases at home, while a high-price island is more likely to see its prices decline. If workable competition will be difficult to achieve at home, strong interties to neighbouring jurisdictions can improve competitive performance if the market is appropriately designed. Air pollution, like electricity, moves across borders, so one must assess and evaluate the pollution implications of competition and make any appropriate adjustments to the market design.electricity restructuring, electric utilities, market design, electricity price, electricity market, spot price, retail competition

Reform and Regulation of the Electricity Sectors in Developing Countries

Reform and Regulation of the Electricity Sectors in Developing Countrie

Price and Environment in Electricity Restructuring

One purpose of electricity restructuring is to create a market in which prices reflect costs to which both generators and consumers may respond efficiently. Yet in many jurisdictions, spot prices may be quite volatile, and both consumers and generators of electricity have made it clear that they do not prices that are highly volatile. This paper examines price plans that have been and might be used in restructured electricity markets assessing their ability to face consumers with efficient prices at the margin but to minimize their exposure to volatility, considering the welfare losses that may be associated with them. It notes that electricity markets are necessarily artificial and that few have managed to create price plans that seem to improve on the efficiency of pre-restructuring prices. Moreover in the California market, the operation of a separate market for air pollution emissions gave rise to emission prices far above reasonable estimates of environmental harm, further exacerbating wholesale price fluctuations in 2000. Solutions to these problems are explored.electric utilities, electricity restructuring, air pollution, spot market, price volatility, price structure, Ontario

Electricity Restructuring: What Has Worked, What Has Not, and What is Next

In the 1990s and early 2000s, a series of state and federal initiatives restructured electric markets. In many areas of the country generation was unbundled from transmission and distribution and competitive markets for energy generation were established. A decade has now passed since many of these market reforms were implemented, and increasing energy prices have re-focused attention on these reforms. In particular, commentators are blaming the reforms for the rising energy prices and, in several states, legislators are now considering re-imposing regulation. In this paper I discuss some successful features of industry restructuring, and consider areas where further reform may be warranted. It appears that market restructuring is now producing significant tangible benefits in the areas of the country where it has been most fully implemented. Calls for the reimposition of heavy-handed regulation should be resisted.

Market design

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 effective competition, others like Germany, Spain and France are still struggling to deal with dominant and sometimes vertically integrated companies. The Netherlands offers an interesting intermediate case, where good economic analysis has sometimes been thwarted by legalistic interpretations. Investment under the new Emissions Trading system could further transform the electricity industry but may be hampered by slow progress in liberalising European gas markets