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In October 2014, the European Council agreed on a target of improving overall energy efficiency by at least 27 per cent by 2030. According to the European Council's conclusions, this target should not be translated into nationally binding targets. Nevertheless individual Member States are free to set higher national objectives if desired. However, it is difficult to assess the degree of ambition of a national target because so far not much light has been shed upon the exact size of the untapped efficiency potentials.
This paper provides an in-depth analysis and comparison of existing studies on energy efficiency potentials in the European Union's (EU) Member States by 2030. It includes a structured overview of the results, information on the quality of the available data and suggestions for improvement.
The review shows that comprehensive studies on national energy efficiency potentials are rare and hardly comparable. The existing studies agree on the existence of significant potentials for energy efficiency. Their outcomes, however, vary significantly in terms of national levels. Assuming low policy intensity, energy savings between 10 and 28 per cent could be realised by 2030 compared to a baseline development, in the case of high policy intensity 7-44 per cent. Technical energy efficiency potentials in the different EU Member States are estimated at 14-52 per cent. On average, energy savings of 27 per cent by 2030 appear to be feasible with significant policy effort. We conclude that the deviation in Member States' energy efficiency potentials resulting from different studies represents an indication of the so far poor quality of underlying data. In order to allow for a concretisation of efficiency potential estimates, the comparability and detail of information sources should be improved.
Energy-intensive processing industries (EPIs) produce iron and steel, aluminum, chemicals, cement, glass, and paper and pulp and are responsible for a large share of global greenhouse gas emissions. To meet 2050 emission targets, an accelerated transition towards deep decarbonization is required in these industries. Insights from sociotechnical and innovation systems perspectives are needed to better understand how to steer and facilitate this transition process. The transitions literature has so far, however, not featured EPIs. This paper positions EPIs within the transitions literature by characterizing their sociotechnical and innovation systems in terms of industry structure, innovation strategies, networks, markets and governmental interventions. We subsequently explore how these characteristics may influence the transition to deep decarbonization and identify gaps in the literature from which we formulate an agenda for further transitions research on EPIs and consider policy implications. Furthering this research field would not only enrich discussions on policy for achieving deep decarbonization, but would also develop transitions theory since the distinctive EPI characteristics are likely to yield new patterns in transition dynamics.
Following the decisions of the Paris climate conference at the end of 2015 as well as similar announcements e.g. from the G7 in Elmau (Germany) in the summer of 2015, long-term strategies aiming at (almost) full decarbonisation of the energy systems increasingly move into the focus of climate and energy policy. Deep decarbonisation obviously requires a complete switch of energy supply towards zero GHG emission sources, such as renewable energy. A large number of both global as well as national climate change mitigation scenarios emphasize that energy efficiency will likewise play a key role in achieving deep decarbonization. However, the interdependencies between a transformation of energy supply on the one hand and the role of and prospects for energy efficiency on the other hand are rarely explored in detail.
This article explores these interdependencies based on a scenario for Germany that describes a future energy system relying entirely on renewable energy sources. Our analysis emphasizes that generally, considerable energy efficiency improvements on the demand side are required in order to have a realistic chance of transforming the German energy system towards 100 % renewables. Efficiency improvements are especially important if energy demand sectors will continue to require large amounts of liquid and gaseous fuels, as the production of these fuels are associated with considerable energy losses in a 100 % renewables future. Energy efficiency on the supply side will therefore differ considerably depending on how strongly the use of liquid and gaseous fuels in the various demand sectors can be substituted through the direct use of electricity. Apart from a general discussion of the role of energy efficiency in a 100 % renewable future, we also look at the role of and prospects for energy efficiency in each individual demand sector.
In spite of current multiple political crises, global warming will remain a prime issue on the global agenda. The adoption of the Paris Agreement in 2015 and its quick ratification in 2016 have created a strong momentum for worldwide action against climate change. As global greenhouse gas emissions must decline towards levels close to zero by the middle of the century, the rapid decarbonisation of energy systems is high on the agenda of most countries around the globe.
This publication delivers insights into cutting edge research on the necessary transitions towards low carbon societies and by this aims to contribute to international as well as national policymaking.
The topics covered in more than 20 concise original articles are among the most important issues for progressing solutions for climate change and sustainable development. The papers discuss recent findings and case studies in the following subject areas:
Governance of the necessary long-term transitions in the context of potential known and unknown adverse developments;
Policy instruments and strategies that allow for financing the transition to low carbon economies and, at the same time, respond to today's economic and social challenges;
Integrated strategies for three of the most important arenas of global decarbonisation: Cities, as much of the change and necessary investment for low carbon societies must take place, be planned, be financed and be built in cities; industry, particularly the energy-intensive processing industries, which are at the core of society's metabolism and are responsible for a large and growing share of global emissions and science as a whole, which must become more solutions-oriented because the transitions needed will rely heavily on research providing solutions for technological as well as societal problems.
As a contribution to these great challenges and at the request of the G7 Environment Ministers, the Low Carbon Society Research Network (LCS-RNet) acts as a forum aimed at fostering research and policymaking to jointly achieve decarbonised energy systems in countries around the world. It convenes leading scientists, practitioners and policymakers and aims at supporting governments in proceeding jointly towards the design and implementation of climate-friendly low carbon societies.