In 2015, a historic double success was achieved for sustainability and climate policy. The 2030 Agenda for Sustainable Development with its Sustainable Development Goals (SDGs) and the Paris Agreement on climate protection define an ambitious global target system. The group of the twenty most important industrialised and emerging countries (G20) should now resolutely press ahead with the implementation of both agreements and perceive the Great Transformation towards sustainability as a unique modernisation project that offers considerable economic development opportunities. For example, the complete decarbonisation of the global economy needed to avoid the greatest climate risks can only be implemented with a profound transformation of energy systems and other emissions-intensive infrastructures. The transformation inspires innovation and directs investments towards sustainability and climate protection, including in the sustainable infrastructures to be built and expanded. At the same time, the transformation can be used to fight inequality, i.e. to advance inclusion within societies as well as globally, and thus become a justice project.
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In the context of the Green Deal, the EU's tightened targets on the path to climate neutrality envisage a reduction in CO2 emissions of 55% by 2030 and 100% by 2050. Against the background of these tightened parameters, the question arises as to the impact on the energy transition in Germany. Based on its energy system model REMod, Fraunhofer ISE has calculated the consequences of the new EU targets for the expansion of renewable energies in Germany and now presents the results in a short study.
In February 2020, Fraunhofer ISE presented the study "Pathways to a Climate-Neutral Energy System - The Energy Transition in the Context of Societal Behaviour", which investigated the influence of societal behaviour on possible transformation paths of the German energy system towards an almost complete reduction of energy-related CO2-emissions in the year 2050. The calculations carried out with the REMod energy system model were based on the targets set by the German government at the time of preparation, i.e. a reduction in German CO2-emissions by 55% in 2030 and 95% in 2050 compared to 1990.
In response to the tightening of the European targets from 40% to 55% by 2030, which has now been implemented as part of the European Green Deal, the Institute has recalculated. The transformation paths for Germany considered in the February study were revised with a view to reducing Germany's CO2-emissions of 65% in 2030 and complete climate neutrality of the energy system in 2050. The scientists from Freiburg recalculated all scenarios of their study from February (reference, insistence on conventional technologies, unacceptance of large infrastructure measures, sufficiency). As an additional aspect, they added an investigation of the sensitivity for import prices of green hydrogen and synthetic fuels. The short study mainly considers the reference scenario in order to be able to go into more detail on the changes caused by the target tightening. However, the study also identifies corridors for the expansion of a variety of technologies that can be derived from different scenarios. In the case of photovoltaics and wind, annual additions of 10-14 GW and 9 GW respectively are required by 2030 in order to achieve sufficient CO2-free electricity for Germany.
"The update of our energy end-use study shows that achieving the climate protection targets, even with a greater reduction in greenhouse gas emissions than previously assumed, is feasible from a technical and systemic point of view, albeit with greater efforts," says Dr Christoph Kost, head of the Energy Systems and Energy Economics Group and author of the short study. "A target tightening of energy-related CO2-emissions leads to a higher direct or indirect use of renewably generated electricity in the consumption sectors. This in turn requires a much greater expansion of wind and solar power generation facilities." Furthermore, the short study shows that the expansion of fluctuating renewable energies requires a strong expansion of system flexibility.
If we want to achieve a reduction in CO2emissions by 65% by 2030, battery-electric vehicles must account for 30-35% of passenger transport in the mobility sector, for example. In a climate-neutral energy system by 2050, conventional internal combustion engines will be virtually eliminated from passenger car transport as well as from freight transport.
"Heat pumps - used in households or to supply district heating networks - must become a key technology for heat supply with immediate effect," says Institute Director Prof. Dr. Hans-Martin Henning, summarising the results for the building sector. With a view to the CO2-avoidance costs, he adds: "The tightening of the target used here leads to an increase in CO2-avoidance costs. However, these depend to a large extent on the development of final energy demand."
Link to the study "Pathways to a climate-neutral energy system - The energy transition in the context of societal behaviour", February 2020, update December 2020:
Düsseldorf. With the Förder.Navi, an online tool of the EnergyAgency.NRW, you can now find your way through the funding jungle even faster. The tool (www.energieagentur.nrw/foerder-navi) helps private individuals, companies and municipalities to find funding opportunities when it comes to energy-efficient renovation, for example.
Whether a committed citizen, entrepreneur or representative of a municipality - financial support is often helpful for investments in energy efficiency, climate protection and renewable energies. And this is available from the state of North Rhine-Westphalia, the federal government or local public utilities. This is because the public sector and regional energy suppliers promote numerous measures to implement the energy transition. But what subsidies are available for individual measures and which of them are available to whom? What are the requirements? And can subsidies be combined?
The Förder.Navi shows the way. With the EnergyAgency.NRW's online tool, it is possible to access the right information on the various funding programmes quickly, efficiently and in a target group-oriented manner. The tool allows filtering by applicant, funding topic, funding type and funding agency. To make this even easier and clearer for the user, the Förder.Navi was recently relaunched.
From now on, a brief overview of all funding programmes will appear first in the user's respective query. This simplified structure provides an initial overview and orientation of the diverse funding programmes. If required, the user can then request more detailed information in the detailed view. Both the brief overview and the detailed view can also be downloaded as a PDF.
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