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| 1 |
ID:
094219
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2010.
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| Summary/Abstract |
Large appliances are major power consumers in households of industrialized countries. Although their energy efficiency has been increasing substantially in past decades, still additional energy efficiency potentials exist. Energy policy that aims at realizing these potentials faces, however, growing concerns about possible adverse effects on commodity prices. Here, we address these concerns by applying the experience curve approach to analyze long-term price and energy efficiency trends of three wet appliances (washing machines, laundry dryers, and dishwashers) and two cold appliances (refrigerators and freezers). We identify a robust long-term decline in both specific price and specific energy consumption of large appliances. Specific prices of wet appliances decline at learning rates (LR) of 29±8% and thereby much faster than those of cold appliances (LR of 9±4%). Our results demonstrate that technological learning leads to substantial price decline, thus indicating that the introduction of novel and initially expensive energy efficiency technologies does not necessarily imply adverse price effects in the long term. By extending the conventional experience curve approach, we find a steady decline in the specific energy consumption of wet appliances (LR of 20-35%) and cold appliances (LR of 13-17%). Our analysis suggests that energy policy might be able to bend down energy experience curves.
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| 2 |
ID:
133215
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2014.
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| Summary/Abstract |
The current project-based carbon market mechanisms such as the Clean Development Mechanism (CDM) and the Joint Implementation (JI) do not have a direct impact on global greenhouse gas emission levels, because they only replace or offset emissions. Nor do they contribute to host country×s national greenhouse gas emission reduction targets. Contributions to net emission reductions in host countries is likely to become mandatory in new mechanisms under development such as in the framework for various approaches, a new market-based mechanism and even in a reformed JI. This research analysed the question if approaches for carbon market-based mechanisms exist that allow the generation of net emission reductions in host countries while keeping project initiation attractive. We present a criteria-based assessment method and apply it for four generic options in existing mechanisms and derive implications for future mechanism frameworks. We identified the application of "discounts" on the amount of avoided emissions for the issuance of carbon credits and "standardisation below business as usual" as most promising options over "limiting the crediting period" and "over-conservativeness". We propose to apply these options differentiated over project types based on internal rate of return to ensure cost-efficiency and attractiveness.
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| 3 |
ID:
105753
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2011.
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| Summary/Abstract |
On 19 May 2010, the European Union adopted a Directive stipulating that by the end of 2020, Member States must ensure that all newly constructed buildings consume 'nearly zero' energy. In Germany, drastic reductions of energy demand for space heating have already become a policy target over the last decade, both for new and existing dwellings. In this article, we evaluate the impact of past and future policies on the development of buildings with a very high energy performance (VHEP) and on their primary energy demand and emissions. These dwellings account for 4% of all dwellings which have been constructed since 2001 and 1% of the total building stock. We have defined different policy scenarios, all of which assume a gradual increase of requirements for new and existing buildings and a continuation of the support policies that stimulate both new constructions and ambitious refurbishments. In the most ambitious scenario, the proportion of VHEP dwellings will increase by up to 30% of the total stock in 2020 and the share of nearly zero and zero-energy dwellings will then make up 6%. This will lead to emission reductions of over 50% of the 1990 level and primary energy reductions of 25% compared with today.
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| 4 |
ID:
113450
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2012.
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| Summary/Abstract |
In the development of effective product efficiency policy, the critical element for policy makers is comprehensive, independent information. However, easily accessible, reliable information on the energy performance of products and policies is often scarce within a particular market, and rarer still if the policy maker is seeking comparisons on an international level. This article presents a method (Mapping & Benchmarking) to compare energy efficiency of products across countries, and the results for 3 products: refrigerators-freezers, washing machines and laundry driers. The results show an improvement of the efficiency over time for these products. However, part of this improvement is due to increased capacity of the products and not to lower energy consumption. Therefore policy makers should consider the development of policies based on product energy consumption and not (only) on product efficiency in order to capture the full potential of technology improvements for energy savings. Results for refrigerator-freezers suggest that in the long run both a policy strategy where minimum efficiency requirements are prominent and a policy strategy where a mandatory energy label is prominent can provide for increasing efficiencies.
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| 5 |
ID:
097282
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2010.
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| Summary/Abstract |
Industrial energy policies often require the setting of quantitative targets to reduce energy use and/or greenhouse gas emissions. In this paper a taxonomy has been developed for categorizing SMART industrial energy use or greenhouse gas emission reduction targets. The taxonomy includes volume reduction targets, physical efficiency improvement targets, economic intensity improvement targets and economic targets. This paper also provides a comprehensive overview of targets for industrial energy use or greenhouse gas emission reductions at sector or firm level in past, current and proposed future policies worldwide. This overview includes approximately 50 different emission permit systems, voluntary or negotiated agreement schemes and emission trading systems. Finally, the paper includes an assessment of the various types of targets. The target types are compared with respect to the certainty of the environmental outcome and compliance costs, the targets' relevance for the public and for industry and their environmental integrity, as well as their complexity and potential for comparison.
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