The current distribution of power markets around intermediate structures that fall between the two extremes of full integration and unbundling suggests that there has not been a linear path to power market structure reform. Rather, many developing countries may retain intermediate structures into the foreseeable future. This possibility exposes a gap in the understanding of power market structures, since most theoretical work has focused on the two extreme possibilities and there is limited evidence of the impact of unbundling for developing countries. Power Market Structure takes a novel analytical approach to modeling market structure, together with ownership and regulation, in determining performance across several indicators, including access, operational and financial performance, and environmental sustainability. Its conclusions―which will be of particular interest to policy makers, academics, and development practitioners―reflect evidence drawn from statistical analysis and a representative sample of 20 case studies, selected based on initial conditions such as income and power system size. The key result of the analysis is that unbundling delivers results when used as an entry point to implementing broader reforms, particularly introducing a sound regulatory framework, and reducing the degree of concentration of the generation and distribution segments of the market by attracting additional public and private players and greater private sector participation. In addition, there seems to be a credible empirical basis for selecting a threshold power system size and per capita income level below which unbundling of the power supply chain is not expected to be worthwhile. Partial forms of vertical unbundling do not appear to drive improvements. The most likely reason is that the owner was able to continue exercising control over the affairs of the sector and hinder the development of competitive pressure within the power market.

Power Market Structure: Revisiting Policy Options (Directions in Development - Energy and Mining)

Business & Money

Vagliasindi, Maria

Besant-Jones, John

Industries

World Bank Publications

The novelty of this work is the fact that it introduces a rigorous and objective economic perspective of current renewable energy support mechanisms and an empirical analysis of the strengths and weaknesses of these mechanisms, which is much needed in a debate often dominated by widespread misconceptions. The economic rationale for renewable energy is straightforward: the optimum amount of renewable energy for grid-connected generation is given by the intersection of the renewable energy supply curve with the avoided cost of thermal electricity generation. The proposed analytical framework: (i) differentiates and illustrates trade-offs--among local, regional, and national impacts, in the short and long run; (ii) captures distributional impacts; and (iii) captures externalities and compares alternative projects based on equivalent output and cost. Accordingly, the study advocates for the need to get the economic, financial, and institutional basics right for the deployment of renewable energy. The study's integration of renewable energy subsidies with fossil subsidies is another novel and important contribution. This allows important comparisons. For example, to reduce carbon intensity in developing country economies, is it more efficient to deploy renewable energy or implement alternative options, such as eliminating subsidies on fossil fuels? The work is based on case studies of Vietnam, Indonesia, Sri Lanka, South Africa, Tanzania, Egypt, Brazil, and Turkey, selected to provide a representative sample of countries with different energy endowments (coal, natural gas, and hydro-based systems) and policy incentives (from feed-in tariffs to auctions). Along the way, the incremental cost of renewable energy is compared with the average cost of generation. The selection and design of support mechanisms in turn determines the impacts on the budget and residential consumers. The main lessons emerging from the case studies are that successful renewable energy policies: - Will only be effective once the state-owned utilities who are the buyers of grid-connected renewable energy are themselves in good financial health - Need to be grounded in economic analysis and accompanied by the application of market principles to ensure economic efficiency - Require a sustainable, equitable, and transparent recovery of incremental costs

The Design and Sustainability of Renewable Energy Incentives: An Economic Analysis (Directions in Development - Energy and Mining)

Meier, Peter

Imran, Mudassar

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