Dein Suchergebnis zum Thema: buch

An important share of Middle European countries’ energy consumption is used for space heating. The latter is determined by building energy efficiency, user practices, and floor space. Research and policy tend to focus on the first two factors and neglect the latter. In the German residential sector, per capita floor space has been increasing for decades, causing important rebound effects. Reducing per capita floor space by only 2 m2 could bring 6% savings in heat energy. Senior homeowners are a relevant target group. When grown-up children move out, they typically remain in the homes constructed for a family. 13% of all households in Germany belong to this group. Their average floor space is 70.6 m2 per capita, compared to the national average of 43.8 m2. These homes are often in need of modernization, and not very energy efficient or barrier-free. The paper presents first results of the transdisciplinary research project “LivingSpaces”, carried out in the district of Steinfurt in Western Germany. Its objective is to develop and assess policy instruments which support senior citizens in choosing housing alternatives that are both space-saving and suitable for their future needs – for example in terms of accessibility, energy efficiency, convenience, or community. Examples are moving to a smaller place, letting out parts of the home, or rebuilding the home so it can be shared with others. The paper will present results of a representative survey that systematically explores senior citizens’ attitudes towards various housing options. Furthermore, it will explain the communication approach that is at the heart of LivingSpaces and consists of several modules such as an awareness campaign, an innovative personal advice service “new housing in old age”, workshops, and setting up a support structure that helps with practical issues such as legal, financial or organizational questions.
Energiewende und Klimapolitik Publikationen Produkte & Stoffströme Bücher

Hedychium gardnerianum is a major invader of native Hawaiian forests and suspected of smothering native understory species and preventing native tree seedlings’ establishment. In this study, effects on species composition in six vegetation layers of a Hawaiian rainforest were examined (Tree Layer 1, Tree Layer 2, Fern-Shrub Layer, Herb Layer, Bryophyte–Herb Layer, and Bryophyte Layer). Three different area types were compared, which included (i) Natural area types with no influence of non-native species, (ii) Ginger area types with a Hedychium gardnerianum dominated herb layer, and (iii) Cleared area types, which were treated with herbicide to remove alien species in 1998. Species composition sampled in 2004 of the upper three vegetation layers (Tree Layer 1, Tree Layer 2, and Fern-Shrub Layer) differed little. The lower three vegetation layers (Herb Layer, Bryophyte–Herb Layer, and Bryophyte Layer) showed highly significant differences. Species composition in the Ginger area types showed notable abundances of non-native Psidium cattleianum, but low coverage of native species. In the area freed of Hedychium gardnerianum (Cleared area types), native species are regenerating, although it still reveals signs of disturbance. If this area is managed to prevent reinvasion, then it is likely to regain a natural forest structure.
rainforest on the island of Hawai’i 01.04.2010 Energie & Klimaschutz Bücher

The Sustainable Development Goals (SDGs) adopted by the United Nations provide normative orientation for many national and regional governments as well as actors from industry and other parts of the civil society. There is a growing consensus that the corresponding transformation processes needed – e.g., in the field of production and consumption patterns (SDG 12) – have to be fostered by a corresponding institutional framework. Properly designed experiments that generate a learning system for all actors involved may be an important building block. Based on an interdisciplinary approach, we provide an overview of the various terminologies for experimentation currently discussed in the social sciences, derive common criteria for a broader approach to the concept of “regulatory experimentation” in reflexive governance structures and present a novel conceptual framework for analysing empirical studies of regulatory experiments. Bauknecht, D., Bischoff, T. S., Bizer, K., Führ, M., Gailhofer, P., Heyen, D. A., Proeger, T., & von der Leyen, K. (2020). Exploring the pathways: Regulatory experiments for sustainable development – An interdisciplinary approach. Journal of Governance & Regulation, 9(3), 49-71. https://doi.org/10.22495/jgrv9i3art4
Umweltrecht Energie & Klimaschutz Umweltrecht & Governance Bücher

The transition towards decarbonized energy systems requires the expansion of renewable and flexibility technologies in power sectors. Many powerful tools exist to find optimal capacity expansion. In a stylized comparison of six models, we evaluate the capacity expansion results of basic power sector technologies. The technologies under investigation include base- and peak load power plants, electricity storage, and transmission. We define four highly simplified and harmonized test cases that focus on the expansion of only one or two specific technologies to isolate their effects on model results. We find that deviating assumptions on limited availability factors of technologies cause technology-specific deviations between optimal capacity expansion in models in almost all test cases. Fixed energy-to-power ratios of storage can entirely change optimal expansion outcomes, especially shifting the ratio between short- and long-duration storage. Fixed initial and final-period storage levels can affect the seasonal use of long-duration storage. Models with a pre-ordered dispatch structure substantially deviate from linear optimization models, as missing foresight and limited flexibility can lead to higher capacity investments. A simplified net transfer capacity approach underestimates the need for grid infrastructure compared to a more detailed direct current load flow approach. We further find deviations in model results of optimal storage and transmission capacity expansion between regions, and link them to variable renewable energy generation and demand characteristics. We expect that the general effects identified in our stylized setting also hold in more detailed model applications, although they may be less visible there.
capacity expansion: A comparative study 30.04.2022 Energie & Klimaschutz Bücher

This paper examines how changes in an international climate regime would affect the European decarbonization strategy and costs through the mechanisms of trade, technology, and innovation. We present the results from the Energy Modeling Forum (EMF) model comparison study on European climate policy to 2050. Moving from a no-policy scenario to an existing-policies case reduces all energy imports, on average. Introducing a more stringent climate policy target for the EU only leads to slightly greater global emission reductions. Consumers and producers in Europe bear most of the additional burden and inevitably face some economic losses. More ambitious mitigation action outside Europe, especially when paired with a well-operating global carbon market, could reduce the burden for Europe significantly. Because of global learning, the costs of wind and especially solar-PV in Europe would decline below the levels observed in the existing-policy case and increased R&D spending outside the EU would leverage EU R&D investments as well. Published in Climate Change Economics, Volume 04, Issue supp01, November 2013 by World Scientific Publishing Co.
Implications on Trade, Technology, and Energy 04.11.2013 Energie & Klimaschutz Bücher

: The Open Energy Ontology (OEO) is being developed as a domain ontology for energy system modelling. To increase its usability and react to user requirements, we introduce a post-coordination extension to OEO, the Open Energy Ontology Extended (OEOX). We create OEOX as an ontology for specific energy-related terms with a high complexity that go beyond the level of detail of the standard OEO class hierarchy. It allows for a dynamic ontology composition, enabling precise and tailored annotations for energy system data sets, requiring only minimal manual intervention or curation. In this paper, we describe the user-driven motivation for this ontology extension (Section 2). We illustrate the methodology and early-state practical implementation on behalf of post-composition patterns (Section 3). The ontological annotation of datasets in real-world applications and the usage of OEOX is described in Section 4, complemented by conclusions and summary in Section 5. Published in: Proceedings of the Joint Ontology Worg
Facebook LinkedIn Publikationen Energie & Klimaschutz Bücher

Under the Paris Agreement, Parties must track the implementation and achievement of their nationally determined contributions (NDCs). In many cases, NDC targets are expressed as greenhouse gas emissions, and it is essential for countries that the effects of mitigation measures are visible in their inventories. Inventory visibility is understood as the degree to which a change in GHG emissions or removals resulting from mitigation actions is reflected in GHG inventories. Inventory visibility is found to be generally high for measures that reduce CO2 emissions from fossil fuel combustion, while in parts of the industrial processes sector and in the forestry sector there is a higher risk that emission reductions are not visible. An analysis of the portfolio of Clean Development Mechanism projects shows that for most projects this risk is low. However, as future carbon market mechanisms under Article 6 of the Paris Agreement may need to tap more into project types with medium to higher risk of non-visibility, national GHG inventory systems may need to be strengthened to assure visibility of mitigation projects.
greenhouse gas inventories 18.05.2022 Publikationen Energie & Klimaschutz Bücher

The Open Energy Ontology (OEO) is a BFO-based ontology for the domain of energy system analysis. Core of this domain is the concept of energy. Since the concept of energy is ambiguous and has not (yet) been introduced into BFO, we describe why the OEO classifies energy as a quality. We present how energy is differentiated from energy carriers, fuels and other related concepts. The process of energy conversion makes it possible to depict many different types of its generation and usage. Further, we describe the concept of origin of matter and energy. In this article, we define the core concepts of the OEO according to the BFO. We thus demonstrate how the OEO enables the consistent use of core concepts throughout the energy system analysis domain. Published in: Proceedings of the Joint Ontology Workshops 2022, Episode VIII: The Svear Sommar of Ontology, Jönköping, Sweden, August 15-19, 2022, CEUR-WS.org. © 2022 Copyright for this paper by its authors. Use permitted under Creative Commons Attribution 4.0 International (CC-BY-4.0). CEUR Workshop Proceedings http://ceur-ws.org ISSN 1613-0073 CEUR Workshop Proceedings (CEUR-WS.org)
Open Energy Ontology 28.11.2022 Publikationen Energie & Klimaschutz Bücher

The development of European power markets is highly influenced by integrated electricity and heat systems. Therefore, decarbonization policies for the electricity and heat sectors, as well as numerical models that are used to guide such policies, should consider cross-sectoral interdependencies and need evaluation. Many model-based policy assessments evaluate potential benefits of combined heat and power. However, the extent of benefits, such as emissions reductions, found in existing studies is subject to considerable variations. While scenarios and model inputs may partly explain such variations, differences in results may also be related to the model formulation itself. Against this background, this study is the first to compare electricity market models in the context of potential benefits of integrated electricity and heat systems in decarbonization. Five large-scale market models covering electricity and heat supply were utilized to study the interactions between a rather simple coal replacement scenario and a more ambitious policy that supports decarbonization through power-to-heat. With a focus on flexibility provision, emissions reduction, and economic efficiency, although the models agree on the qualitative effects, there are considerable quantitative differences. For example, the estimated reductions in overall CO2 emissions range between 0.2 and 9.0 MtCO2/a for a coal replacement scenario and between 0.2 and 25.0 MtCO2/a for a power-to-heat scenario. Model differences can be attributed mainly to the level of detail of combined heat and power modeling and the endogeneity of generation investments. Based on a detailed comparison of the modeling results, implications for modeling choices and political decisions are discussed.
comparison approach 26.05.2022 Publikationen Energie & Klimaschutz Bücher

Even though environmental innovations are generally considered a key element towards a green growth strategy, especially for the case of energy efficiency innovations, the impact on climate goals has been subject to a long-running debate. On the one hand, energy efficiency innovations provide a huge cost-effective CO2 reduction potential. On the other hand, increasing energy efficiency implies cost reductions which in turn may lead to increased consumption due to the so-called rebound effect. Our study investigates the long-term environmental impact of energy efficiency innovations on the EU-27 residential electricity demand (excluding heating systems) using a detailed bottom-up modelling approach. Assuming a rebound effect of 10 %, we show that the diffusion of energy efficiency technologies with current policy levels provides savings of around 140 TWh and additional 270 TWh may be saved through additional policy measures accelerating the diffusion and development of new technologies until 2030. By contrast, assuming a (rather pessimistic) rebound effect of 40 %, the savings are reduced to around 95 and 180 TWh until 2030, respectively. We conclude that there is a clear case for ambitious policies to support energy efficiency innovations for the residential sector, which ideally should be complemented by measures to limit the rebound effect.
case of EU residential electricity use 28.09.2015 Energie & Klimaschutz Bücher