Renewable portfolio standards (RPS) are the most common state-level policies for promoting renewable electricity in the United States. State RPS policies are heterogeneously designed, particularly with respect to their use of flexibility mechanisms that allow obligations to be met with renewable energy generated in other states. However, the renewable energy that is produced within an…
The Green Paradox of U.S. Biofuel Subsidies: Impact on Greenhouse Gas Emissions
This paper presents the first comprehensive estimates of the impact of U.S. biofuel subsidies on greenhouse gas emissions. Although U.S. support for biofuels is large and growing, the associated impact on greenhouse gas emissions remains unclear. The effect of biofuel subsidies on emissions is determined by the relative magnitudes of countervailing substitution and price effects….
The Dynamics of Energy Poverty: Evidence from Spain
Reducing the proportion of households defined as energy poor is an increasingly important policy objective. This paper uses longitudinal data to examine the level and dynamics of energy poverty in Spain, comparing the results to the level and dynamics of income poverty. Two alternative measures of energy poverty are used in the analysis – one…
Book Reviews
Power System Transformation toward Renewables: Investment Scenarios for Germany
We analyze distinctive investment scenarios for the integration of fluctuating renewables in the German power system. Using a combined model for dispatch, transmission, and investment, three different investment options are considered, including gas-fired power plants, pumped hydro storage, and transmission lines. We find that geographically optimized power plant investments dominate in the reference scenarios for…
The German “Energiewende”—An Introduction
The German government’s multi-decade effort to transition to a low-carbon, renew-ables-based energy economy is now commonly known as “energiewende” (“energy transition”). The transition has four major objectives: increasing the share of renewables to at least 80% (in electricity) and 60% for total final energy consumption, reducing greenhouse gas emissions by 80-95% (basis: 1990), phasing out…
Regional Cooperation Potentials in the European Context: Survey and Case Study Evidence from the Alpine Region
The energiewende (“Energy Turnaround”) in Germany will occur within the context of setting up Europe’s internal electricity market. An important initial step will be to intensify regional cooperation between neighboring countries. We assert that the full benefits of regional cooperation will be realized by integrating Europe’s market segments, e.g., real-time, day ahead, reserve markets and…
Germany’s Nuclear Phase Out – A Survey of the Impact since 2011 and Outlook to 2023
In this paper we analyze the effects of the German nuclear phase out, focusing on the seven nuclear power plants affected by the March 2011 moratorium, and continuing through the final phase out of the last plant in 2022. We provide an ex-post assessment of model analyses on the impact of the nuclear moratorium presented…
Optionality and Policymaking in Re-Transforming the British Power Market
Conventional models to support policymaking for the energy sector have been largely based on deterministic or static settings that focus on planning welfare- maximising investment pathways. But, in a liberalised market, since investments are made by competitive, profit-maximising companies, the increased intervention of government policy in the trading arrangements creates uncertain responses to incentives. Industry…
How Should Different Countries Tax Fuels to Correct Environmental Externalities?
This essay discusses (based on a recent IMF study) how developed and developing countries alike might put into practice the principle of ‘getting prices right’ to address the major externalities from energy. The efficient set of taxes includes charges on fuel use for carbon and local pollution (with credits for emissions capture during combustion) and…