Zukünftige Energie- und Industriesysteme
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Die Energiewende stellt eine gesellschaftliche Herausforderung dar und bedarf neuer Arbeitskonzepte. Diese These vertreten Uta von Winterfeld und Adelheid Biesecker in ihrem Beitrag "Bitte zweimal wenden! - Die Transformation der Energie- und Arbeitswelt". Ausgehend davon, dass die Energiewende einer sozial-ökonomischen Revolution gleichkomme und die Geschichte der Energie eine Geschichte steigender Arbeitsproduktivität sei, weswegen regenerative Energiequellen wie Sonne und Wind die Entwicklung bedrohen und zu einer Rückkehr zu einer früheren zivilisatorischen Phase führen würden, zeigen die Autorinnen, dass man zu letzterer Einsicht nur dann gelangt, wenn man die Energiewende ohne die notwendige Arbeitswende betrachtet. Damit die Energiewende nicht nur gelingt, sondern auch wirtschaftlich und gesellschaftlich positiv verläuft, braucht es laut Autorinnen eine Neuorganisation von Energie und Arbeit.
The climate impact of the iron and steel industry can be mitigated through increased energy efficiency, emission efficiency, material efficiency, and product use efficiency resulting in reduced product demand. For achieving ambitious greenhouse gas (GHG) mitigation targets in this sector all measures could become necessary. The current paper focuses on one of those four key measures: emission efficiency via innovative primary steelmaking technologies. After analysing their techno-economical potential until 2100 in part A of this publication, the current research broadens the evaluation scope for the crucial year 2050, based on a Multicriteria-Analysis (MCA). 12 criteria from five different categories ("technology", "society and politics", "economy", "safety and vulnerability" and "ecology") are used to assess the same four future steelmaking technologies in a systematic and holistic way in Germany, as one possible location. The technologies in focus are the blast furnace route (BF-BOF), blast furnace with carbon capture and storage (BF-CCS), hydrogen direct reduction (H-DR), and iron ore electrolysis (EW). These four technologies have been selected, as explained in part A of this paper, because they are the most commonly discussed technological options under discussion by policymakers and the iron and steel industry. The results of the current work should provide decision makers in industry and government with a long-term guidance on technological choices.
In 2050 the MCA shows significantly higher preference scores for the two innovative routes H-DR and EW compared to the blast furnace based routes. The main reasons being higher scores in the economical and environmental criteria. BF-CCS shows its greatest weakness in the social acceptance and the safety and vulnerability criteria. BF-BOF has the lowest economy and ecology score of all assessed routes, which is due to the projected high cost for carbon dioxide emission and increasing prices for fossil fuels. A first indicative trend assessment from today towards 2050 shows that H-DR is the preferred MCA option from today on.
Three exemplary weighting distributions (representing the perspectives of the steel industry, environmental organisations and the government), used to simulate different stakeholder angle of view, don't have a strong influence on the overall evaluation of the steelmaking routes. The results remain very similar, with the highest scores for the innovative routes (H-DR and EW). This leads to the conclusion that EW and in particular H-DR can be identified as the preferred future steelmaking technology across different perspectives.
Specific innovation efforts and dedicated programs are necessary to minimize the time until marketability and to share the development burden. The similarity of the MCA results from different perspectives indicates a great opportunity to reach a political consensus and to work together towards a common future goal. Regarding the pressing time horizon a concentrated engagement for one (or few) technological choices would be highly recommended.
Durch den zu erwartenden Rückgang der Braunkohleverstromung in Deutschland wird der Strukturwandel in der Lausitz weiter beschleunigt werden. Die Energiewende erfordert also eine konsistente strukturpolitische Flankierung, für diejenigen Regionen, die bisher ökonomisch stark vom Braunkohlebergbau (inklusive Vorketten und Folgeindustrien) abhänging sind. Vor diesem Hintergrund hat die Brandenburger Landtagsfraktion von Bündnis 90 / Die Grünen das Wuppertal Institut beauftragt, erste Empfehlungen für strategische Ansätze einer präventiven Strukturpolitik in der Lausitz zu entwickeln. Die Kurzstudie nimmt besonders in den Blick, welche Erkenntnisse sich aus den Erfahrungen mit dem Strukturwandel in Nordrhein-Westfalen und insbesondere dem Rheinischen Revier für die Gestaltung des Strukturwandels in der Lausitz ableiten lassen.
Um weltweit hochindustrialisierte, energieintensive Bundesländer und Regionen bei der Entwicklung und Umsetzung von innovativer Klimapolitik zu unterstützen, wurde die "Energy Transition Platform" ins Leben gerufen. Ziel ist der Austausch von Erfahrungen sowie eine Einflussnahme auf den internationalen Klimadialog. Für diesen Austausch- und Dialogprozess erarbeitete das Wuppertal Institut für die "Climate Group" die Fallstudie "Eine Industrieregion im Wandel - Energie- und klimapolitische Rahmenbedingungen, Strategien und Instrumente in NRW". In dem Bericht werden aktuelle energie- und klimapolitische Entwicklungen, Politikinstrumente und Modellprojekte dargestellt und diskutiert.
Die Fallstudie macht deutlich, dass Nordrhein-Westfalen bei der Umsetzung der Energiewende zwar vor besonderen Herausforderungen steht, die Modernisierung des Energiesystems und des Industriestandortes NRW jedoch mit Hilfe eines vielfältigen Instrumentariums systematisch und intensiv angeht. Eine solche proaktive und langfristig ausgelegte Herangehensweise ist zentrale Voraussetzung dafür, dass die bevorstehende Transformation letztlich nicht zu einem kaum steuerbaren Strukturbruch in NRW und seinen Regionen und Kommunen führt, sondern zu einem schrittweisen Strukturwandel, der von Politik, Wirtschaft und Gesellschaft gemeinsam gestaltet wird.
Als Beitrag zu einer fundierten Diskussion über adäquate Politikinstrumente in der Wärmewende hat der FVEE mit seinen Mitgliedsinstituten im September 2015 ein Positionspapier erstellt: "Erneuerbare Energien im Wärmesektor - Aufgaben, Empfehlungen und Perspektiven". Dieses gibt einen umfassenden Überblick über die Herausforderungen und Handlungsoptionen im Wärmesektor und bietet damit eine wichtige Orientierung bei der Gestaltung der Energiewende.
Um die Energiewende erfolgreich umzusetzen, plädiert der FVEE für eine deutliche Stärkung des Wärmesektors in der Energiepolitik und eine entschiedene und langfristig angelegte Politik der Wärmewende, die den besonderen Anforderungen des Wärmesektors gerecht wird. Im vorliegenden Beitrag werden ausgewählte Analyseergebnisse und Empfehlungen des Positionspapiers vorgestellt.
Rather than examining aggregate emissions trends, this study delves deep into the dynamics affecting each sector of the EU energy system. It examines the structural changes taking place in power production, transport, buildings and industry, and benchmarks these with the changes required to reach the 2030 and 2050 targets. In so doing it aims to influence both the ambition and direction of future policy decisions, both at Member State and EU level.
In order to assess the adequacy of the EU and its Member States policies with the 2030 and 2050 decarbonisation objectives, this study goes beyond the aggregate GHG emissions or energy use figures and analyse the underlying drivers of emission changes, following a sectoral approach (power generation, buildings, industry, and transport). Historical trends of emission drivers are compared with the required long-term deep decarbonisation pathways, which provide sectoral "benchmarks" or "corridors" against which to analyse the rate and direction of historical change for each Member State and the EU in aggregate. This approach allows the identification of the necessary structural changes in the energy system and policy interventions to reach deep decarbonisation, and therefore the comparison with the current policy programs at European and Member State level.
Distributed cogeneration units are flexible and suited to providing balancing power, thereby contributing to the integration of renewable electricity. Against this background, we analysed the technical potential and ecological impact of CHP (combined heat and power) systems on the German minutes reserve market for 2010, 2020 and 2030. Typical CHP plants (from 1 to 2800 kWel) were evaluated in relation to typical buildings or supply cases in different sectors. The minutes reserve potential was determined by an optimisation model with a temporal resolution of 15 min. The results were scaled up to national level using a scenario analysis for the future development of CHP. Additionally, the extent to which three different flexibility measures (double plant size/fourfold storage volume/emergency cooler) increase the potential provision of balancing power was examined. Key findings demonstrate that distributed CHP could contribute significantly to the provision of minutes reserve in future decades. Flexibility options would further enhance the theoretical potential. The grid-orientated operating mode slightly increases CO2 emissions compared to the heat-orientated mode, but it is still preferable to the separate generation of heat and power. However, the impacts of a flexible mode depend greatly on the application and power-to-heat ratio of the individual CHP system.
Das Forschungsvorhaben befasst sich mit der Fragestellung, welche Faktoren und Bedingungen die Anpassungskapazität von Kommunen in Deutschland maßgeblich beeinflussen. Dazu wurden im Projekt empirische Befragungen mit kleineren und mittleren Kommunen wie auch eine Fachworkshopreihe mit insgesamt elf Kommunen durchgeführt. Vor diesem Hintergrund erarbeitete das Projekt Vorschläge und Unterstützungsangebote zum systematischen Aufbau von Kapazitäten zur Anpassung an den Klimawandel auf lokaler Ebene. Insbesondere die Stärkung institutioneller Faktoren, die die Fähigkeit einer Kommune beeinflussen, sich organisatorisch, prozedural und fachlich-strategisch auf neue Herausforderungen wie den Folgewirkungen des Klimawandels adäquat einzustellen, erweisen sich hier als ein wichtiger Baustein für Unterstützungsansätze.
Heat integration and industrial symbiosis have been identified as key strategies to foster energy efficient and low carbon manufacturing industries (see e.g. contribution of Working Group III in IPCC's 5th assessment report). As energy efficiency potentials through horizontal and vertical integration are highly specific by site and technology they are often not explicitly reflected in national energy strategies and GHG emission scenarios. One of the reasons is that the energy models used to formulate such macro-level scenarios lack either the necessary high technical or the spatial micro-level resolution or both. Due to this lack of adequate tools the assumed huge existing potentials for energy efficiency in the energy intensive industry cannot be appropriately appreciated by national or EU level policies. Due to this background our paper describes a recent approach for a combined micro-macro energy model for selected manufacturing industries. It combines national level technical scenario modelling with a micro-modelling approach analogous to total site analysis (TSA), a methodology used by companies to analyse energy integration potentials on the level of production sites. Current spatial structures are reproduced with capacity, technical and energy efficiency data on the level of single facilities (e.g. blast furnaces) using ETS data and other sources. Based on this, both, the investments in specific technologies and in production sites are modelled and the evolvement of future structures of (interconnected) industry sites are explored in scenarios under different conditions and with different objectives (microeconomic vs. energy efficiency optimization). We further present a preliminary scenario that explores the relevance of these potentials and developments for the German steel industry.
On behalf of the Port of Rotterdam Authority, the Wuppertal Institute developed three possible pathways for a decarbonised port of Rotterdam until 2050. The port area is home to about 80 per cent of the Netherlands' petrochemical industry and significant power plant capacities. Consequently, the port of Rotterdam has the potential of being an international leader for the global energy transition, playing an important role when it comes to reducing CO2 emissions in order to deliver on the EU's long-term climate goals.
The three decarbonisation scenarios all built on the increasing use of renewables (wind and solar power) and the adoption of the best available technologies (efficiency). The analysis focuses on power plants, refineries and the chemical industry, which together are responsible for more than 90 per cent of the port area's current CO2 emissions.
The decarbonisation scenarios describe how CO2 emissions could be reduced by 75 to 98 per cent in 2050 (compared to 2015). Depending on the scenario, different mitigation strategies are relied upon, including electrification, closure of carbon cycles or carbon capture and storage (CCS). The study includes recommendations for local companies, the Port Authority as well as policy makers. In addition, the study includes a reference scenario, which makes it clear that a "business as usual" mentality will fall well short of contributing adequately to the EU's long-term climate goals.