Until relatively recently international political economy (IPE) scholarship on energy has tended to focus on oil, rather than energy understood in its full, current diversity through IPE's tripartite liberal, realist or critical lenses. Over the past decade or so there have, however, been far-reaching transformations in the global economy, not least in response to the increased recognition, and visibility, of damaging manifestations of fossil fuel usage and human-induced climate change. In the light of such changes this article, and the special section as a whole, represents a distinctive departure from earlier IPE of energy traditions by collectively deepening our understanding of how the IPE of energy is changing: in scalar, material, distributional and political terms. An appeal is made for greater engagement by IPE scholars with energy, given its wide-ranging relevance to debates about climate change, development, technology and equity and justice.
Since its initial adoption, the EU's 2020 Strategy-to reduce its greenhouse gas emissions by 20%, increase the share of renewable energy to at least 20% of consumption, and achieve energy savings of 20% or more by 2020-has witnessed substantial albeit uneven progress. This article addresses the question of what role nuclear power generation has played, and can or should play in future, towards attaining the EU 2020 Strategy, particularly with reference to decreasing emissions and increasing renewables. It also explores the persistent diversity in energy strategies among member states. To do so, it first surveys the current landscape of nuclear energy use and then presents the interrelated concepts of path dependency, momentum, and lock-in. The article proceeds to examine five factors that help explain national nuclear divergence: technological capacity and consumption; economic cost; security and materiality; national perceptions; and political, ideological and institutional factors. This divergence reveals a more general weakness in the 2020 Strategy's underlying assumptions. Although energy security-defined as energy availability, reliability, affordability, and sustainability-remains a vital concern for all member states, the 2020 Strategy does not explicitly address questions of political participation, control, and power. The inverse relationship identified here-between intensity of nuclear commitments, and emissions mitigation and uptake of renewable sources-underscores the importance of increasing citizens' levels of energy policy awareness and participation in policy design. Policy relevance This article highlights the significance of non-market forces in shaping the EU's energy markets. It finds that intensities of national commitment to nuclear power tend to be inversely related to degrees of success in achieving EU climate policy goals. While the nuclear sector is increasingly economically uncompetitive and appears to be in decline for the EU as a whole, an abiding political challenge remains one of increasing interests and incentives in popular participation and interest in energy systems management.
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