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PublicationDevelopment of 5G - Identifying organizations active in publishing, patenting, and standardization( 2022)
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PublicationMetastudie Wasserstoff. Was lässt sich aus Energiesystemstudien schlussfolgern?( 2022)Im Auftrag des Nationalen Wasserstoffrats haben die drei Fraunhofer-Institute ISI, ISE und IEG in einer Metastudie die potentielle Nachfrage nach Wasserstoff sowie Wasserstoffderivaten bis 2050 analysiert. Hierzu wurden aktuelle Systemstudien für die EU und für Deutschland mit Szenarien für einen ambitionierten Klimaschutz analysiert. Die ausgewerteten Studien haben eine (stark techno-ökonomische) Systemsicht aus einer Energieperspektive heraus. Nicht alle Aspekte eines Transformationspfades (z. B. heimische Arbeitsplätze und Wertschöpfung, bestehende Regulierung, beschlossene Fördermaßnahmen etc.) werden dabei berücksichtigt. Diese Studien arbeiten mit Szenarien, die keine Vorhersagen darstellen, sondern die möglichen Entwicklungen und techno-ökonomische Pfade unter verschiedenen Annahmen abbilden.
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PublicationProduktion in Deutschland zu Corona-Zeiten( 2021)
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PublicationRationelle Energieverwendung( 2021)
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PublicationRationelle Energieverwendung( 2020)
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PublicationData portability effects on data-driven innovation of online platforms: Analyzing Spotify( 2020)
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PublicationCustomer economics of residential PV-battery systems in Thailand( 2020)
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PublicationForecasting residential electricity consumption: A bottom-up approach for Brazil by region( 2020)In this paper, we forecast residential electricity consumption in Brazil considering the variability in consumption behavior in different regions. In order to do so, we use a bottom-up approach to estimate long-term electricity consumption that considers three technology-driven scenarios: one assuming reference efficiency development, another one based on the Brazilian government's predictions, and the third one assuming high efficiency. The results show an increase of residential electricity consumption due to the increasing appliance ownership rate, especially air conditioning, as well as the increasing number of households. In addition, it is shown that 96 TWh of electricity could be saved in the highest efficiency scenario due to significant efficiency gains between 2016 and 2050. Further, the results indicate the southeast of the country has the highest potential for consumption reduction: by 27% in the most efficient scenario. This work is the first to use a bottom-up approach to forecast the residential electricity consumption by region and by technology-driven scenarios in Brazil. With this methodology, it is possible to indicate which types of appliances should be targeted by policy makers when designing energy efficiency incentives. Hence, this model can be used as a roadmap to achieve the desired efficiency gains in Brazil.
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PublicationThe future need for flexibility and the impact of fluctuating renewable power generation( 2020)
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PublicationPolicy strategies for achieving large long-term savings from retrofitting existing buildings( 2019)In order to achieve long-term targets for energy savings and emission reductions, substantial savings will be needed from existing buildings. For example, a recent analysis for the USA examines aggressive strategies to cut carbon emissions in half by 2040 and finds that in order to achieve this emission reduction target, more than half of existing buildings will need comprehensive energy efficiency retrofits. Germany is targeting an overall primary energy consumption reduction of 50% in 2050 including increasing building renovation rate to 2% per year. In France, ambitious targets have also been set for existing buildings: 50% reduction of primary energy consumption in 2050 compared to the 2012 level. Multiple countries have realized the importance of comprehensive building retrofits and have begun to adopt policies to spur these improvements. For example, Germany is emphasizing grants and loans through the KfW Development Bank, complemented with building and heating system labels, a new ""heating check"" programme, and possible technical renovation requirements. France has established a goal of bringing all buildings up to ""A"" performance level (on their A-G scale) by 2050 in order for them to be sold or leased, with lower performance levels required as soon as 2020. In the USA, the focus has been on a combination of rating and disclosure of energy use, financing, and technical assistance. Focused community approaches show promise. This paper summarizes the efforts, successes and challenges, future directions, and savings of building retrofit policies in the three countries. We conclude by contrasting the three countries and discussing areas of opportunity for these and other countries.
