Congestion pricing and network expansion

Over the past decade network industries (such as gas, electricity, and telecommunications) have undergone a dramatic transformation. Competition has been introduced in industries that had long been viewed as textbook examples of natural monopolies. Production and transport have been unbundled to foster the introduction of competition: the capacity provider (the owner of the infrastructure) now often differs from the service provider. Chief among the challenges this raises for economists and policymakers: to design institutions that lead to"optimal"network expansion. Different arrangements have been suggested, ranging from indicative planning to decentralization of investment decisions through congestion pricing. Two questions lie at the core of the debate: Is the infrastructure network still a natural monopoly? And what role should congestion pricing play in ensuring optimal network expansion? The author shows that simple economic principles apply to the use of congestion pricing to induce network expansion: a) If network provision is competitive, congestion pricing leads to optimal investment. b) If network provision is monopolistic, congestion pricing leads to underinvestment. He shows the model applying to power networks as well as to the Internet. Policymakers must therefore assess whether network expansion is indeed competitive and design institutions that ease entry, or design an appropriate regulatory framework.Banks&Banking Reform,Economic Theory&Research,Common Carriers Industry,Transport and Trade Logistics,Markets and Market Access,Common Carriers Industry,Economic Theory&Research,Geographical Information Systems,Banks&Banking Reform,Transport and Trade Logistics

Determining Utility System Value of Demand Flexibility From Grid-interactive Efficient Buildings

This report focuses on ways current methods and practices that establish the value to electric utility systems of distributed energy resource (DER) investments can be enhanced to determine the value of demand flexibility in grid-interactive efficient buildings that can provide grid services. The report introduces key valuation concepts that are applicable to demand flexibility that these buildings can provide and links to other documents that describe these concepts and their implementation in more detail.The scope of this report is limited to the valuation of economic benefits to the utility system. These are the foundational values on which other benefits (and costs) can be built. Establishing the economic value to the grid of demand flexibility provides the information needed to design programs, market rules, and rates that align the economic interest of utility customers with building owners and occupants. By nature, DERs directly impact customers and provide societal benefits external to the utility system. Jurisdictions can use utility system benefits and costs as the foundation of their economic analysis but align their primary cost-effectiveness metric with all applicable policy objectives, which may include customer and societal (non-utility system) impacts.This report suggests enhancements to current methods and practices that state and local policymakers, public utility commissions, state energy offices, utilities, state utility consumer representatives, and other stakeholders might support. These enhancements can improve the consistency and robustness of economic valuation of demand flexibility for grid services. The report concludes with a discussion of considerations for prioritizing implementation of these improvements

Regulation of transmission expansion in Argentina Part I: State ownership, reform and the Fourth Line

From 1992 to 2002, major expansions of the Argentine electricity transmission sector depended on users proposing, voting and paying for such expansions, which were then put out to competitive tender. Commentators hold this novel policy to have been unsuccessful, mainly on the ground that it substantially delayed investment in a much needed “Fourth Line” to Buenos Aire. This paper challenges this interpretation. The policy was chosen because the conventional regulatory framework could not be trusted to deliver more efficient transmission investment decisions. The delay to the Fourth Line was short. Most importantly, the Fourth Line was not economic. Hence the delay was beneficial both in deferring and in reducing costs. It indicated a need to reappraise transmission investment policy because the availability of gas had made it more economic to generate electricity near Buenos Aires than to transmit it a long distance.Argentina, electricity, transmission, regulation

A Review of ISO New England's Proposed Market Rules

This report reviews the proposed rules for restructured wholesale electricity markets in New England. We review the market rules, both individually and collectively, and identify potential problems that might limit the efficiency of these markets. We examine alternatives and identify the key tradeoffs among alternative designs. We believe that the wholesale electricity market in New England can begin on December 1, 1998. However, improvements are needed for long-run success. We have identified four major recommendations: 1. Switch to a multi-settlement system. 2. Introduce demand-side bidding. 3. Adopt location-based transmission congestion pricing, especially for the import/export interfaces. 4. Fix the pricing of the ten minute spinning reserves.Auctions; Multiple Object Auctions; Electricity Auctions

Nodal Pricing and Transmissions Losses. An Application to a Hydroelectric Power System

Since January 1st, 1997, the wholesale electricity market in the U.S. has been open to competition through FERC Order 888. In order to satisfy the reciprocity requirements which were imposed by FERC to foreign utilities, Hydro-Québec made her transmission grid accessible to third parties. A single flat rate is applied to account for transmission losses; location and time of use play no role. Hydro-Québec is a hydro based utility and it has very long linear high voltage power lines which link hydro power sites in the north to consumption centres in the south. In this paper, we compare three different methods of incorporating transmission losses into nodal prices for a simpplified model of Hydro-Québec electric network: flat rate, linear power loss rates, and quadratic power loss rates. The latter two vary by node and time of use. We estimate that nodal price differences between the flat rate and the quadratic power loss rates can be as large as 27.8% on the producer side and 32.7% on the consumer side. The implications of such price differences for the location of economic activity over the service area could be significant.Electricity, Transmission Pricing, Hydro Power

Final Report: Market and Economic Modelling of the Intelligent Grid

The overall goal of Project 2 has been to provide a comprehensive understanding of the impacts of distributed energy (DG) on the Australian Electricity System. The research team at the UQ Energy Economics and Management Group (EEMG) has constructed a variety of sophisticated models to analyse the various impacts of significant increases in DG. These models stress that the spatial configuration of the grid really matters - this has tended to be neglected in economic discussions of the costs of DG relative to conventional, centralized power generation. The modelling also makes it clear that efficient storage systems will often be critical in solving transient stability problems on the grid as we move to the greater provision of renewable DG. We show that DG can help to defer of transmission investments in certain conditions. The existing grid structure was constructed with different priorities in mind and we show that its replacement can come at a prohibitive cost unless the capability of the local grid to accommodate DG is assessed very carefully.Distributed Generation. Energy Economics, Electricity Markets, Renewable Energy

Public sector pricing policies : a review of Bank policy and practice

Nearly a decade has passed since the Bank codified its position on cost recovery policies (OMS 2.25) for public sector projects. In a review of 13 sectors, the authors find that the Bank guidelines are followed fairly closely in seven sectors: coal, irrigation, oil/gas, power, roads, telecommunications, and water/sewerage. In the other six sectors the focus is heavily on either distributional (health, education, housing) or financial (fertilizer, ports, railways) concerns - with little attempt to incorporate economic pricing principles. Efficiency pricing is not irrelevant or impossible in these sectors, and - even if used only as a benchmark - could improve sector management and project selection and design.Environmental Economics&Policies,Economic Theory&Research,Health Monitoring&Evaluation,Public Sector Economics&Finance,Banks&Banking Reform

A Quantitative Analysis of Pricing Behavior In California’s Wholesale Electricity Market During Summer 2000

During the Summer of 2000, wholesale electricity prices in California were nearly 500% higher than they were during the same months in 1998 or 1999. This price explosion was unexpected and has called into question whether electricity restructuring will bring the benefits of competition promised to consumers. The purpose of this paper is to examine the factors that explain this increase in wholesale electricity prices. We simulate competitive benchmark prices for Summer of 2000 taking account of all relevant supply and demand factors --- gas prices, demand, imports from other states, and emission permit prices. We then compare the simulated competitive benchmark prices with the actual prices observed. We find that there is a large gap between our benchmark competitive prices and observed prices, suggesting that the prices observed during summer 2000 reflect, in part, the exercise of market power by suppliers. We then proceed to examine supplier behavior during high-price hours. We find evidence that suppliers withheld supply from the market that would have been profitable for price-taking firms to sell at the market price.electricity, market power, deregulation

Integrating independent power producers into emerging wholesale power markets

Many developing and industrial countries have sought to open their electricity industries to competition. In both contexts, policymakers and investors have to deal with the consequences of earlier, more partial sector liberalization measures. Foremost among these is the existence of long-term contracts with independent power producers (IPPs). The long-term nature of these contracts has complicated the introduction of more far-reaching sectoral reform designed to harness competitive market forces for the benefit of consumers. In developing countries, introducing competition is often coupled with breaking up and privatizing state-owned electricity monopolies. In this context, discussion of renegotiation of power purchase agreements has tended toward the polemical. At one end are those who resist any change, arguing that the"sanctity of contracts"precludes modification of contract terms. At the other end are those who favor governments taking coercive measures to modify existing contracts in the name of maximizing economic welfare and minimizing the burden of sector reform on consumers and on the state. Drawing on recent country experiences, the authors analyze alternative approaches to restructuring contracts and designing power markets to reduce rigidities and incentivize IPPs to participate more fully in wholesale power markets and to take on greater market risk. The authors conclude that forced market integration or forced contract negotiation have failed and are counterproductive. Conversely, in countries where IPPs provide a sizable proportion of generation capacity, ignoring market integration may result in insufficient market liquidity and discourage new entry, attenuating the scope for market forces to act for the benefit of consumers. Failure to adapt power purchase contracts and market rules imposes huge resource costs on the economy beyond the financial obligations consumers and taxpayers must bear. Based on recent experience, a combination of measures, including adaptation of specific market rules, contractual alternatives for enhancing market liquidity, contract buyout provisions, transitional financing mechanisms, and characteristics of the successor entity to the power purchaser, offer promising approaches for reconciling preexisting IPP contracts with new market structures and reducing the magnitude of above-market costs associated with such contracts.Markets and Market Access,Payment Systems&Infrastructure,General Technology,Labor Policies,Banks&Banking Reform,Markets and Market Access,Access to Markets,Banks&Banking Reform,Economic Theory&Research,General Technology

The support of multipath routing in IPv6-based internet of things

The development of IPv6-based network architectures for Internet of Things (IoT) systems is a feasible approach to widen the horizon for more effective applications, but remains a challenge. Network routing needs to be effectively addressed in such environments of scarce computational and energy resources. The Internet Engineering Task Force (IETF) specified the IPv6 Routing Protocol for Low Power and Lossy Network (RPL) to provide a basic IPv6-based routing framework for IoT networks. However, the RPL design has the potential of extending its functionality to a further limit and incorporating the support of advanced routing mechanisms. These include multipath routing which has opened the doors for great improvements towards efficient energy balancing, load distribution, and even more. This paper fulfilled a need for an effective review of recent advancements in Internet of Things (IoT) networking. In particular, it presented an effective review and provided a taxonomy of the different multipath routing solutions enhancing the RPL protocol. The aim was to discover its current state and outline the importance of integrating such a mechanism into RPL to revive its potentiality to a wider range of IoT applications. This paper also discussed the latest research findings and provided some insights into plausible follow-up researches