-
DIW Wochenbericht 41 / 2023
Grüner Wasserstoff aus erneuerbaren Energien soll künftig fossile Energieträger in bestimmten Anwendungen in der Industrie und im Verkehr ersetzen, die nicht direkt elektrifizierbar sind. Laut Nationaler Wasserstoffstrategie soll ein Teil des künftigen Wasserstoffbedarfs inländisch durch Elektrolyse mit erneuerbarem Strom erzeugt werden. In dieser Studie wird mit einem Stromsektormodell untersucht, ...
2023| Dana Kirchem, Wolf-Peter Schill
-
DIW Wochenbericht 41 / 2023
Der Ersatz fossiler durch erneuerbare Energieträger ist ein wesentlicher Baustein der Energiewende. In bestimmten Bereichen soll künftig grüner Wasserstoff eine wichtige Rolle spielen. Dies geht auch aus der überarbeiteten Nationalen Wasserstoffstrategie hervor, die die Bundesregierung kürzlich vorgestellt hat. In diesem Wochenbericht werden wichtige Änderungen gegenüber der ersten Fassung aus dem ...
2023| Martin Kittel, Dana Kirchem, Wolf-Peter Schill, Claudia Kemfert
-
DIW Wochenbericht 22 / 2022
Die verstärkte Nutzung von Wärmepumpen ist eine wichtige Maßnahme zur Senkung der CO2-Emissionen im Wärmesektor. Zudem können Wärmepumpen dazu beitragen, die Importe von Erdgas zu reduzieren. Mit Hilfe eines Stromsektormodells werden die Auswirkungen eines beschleunigten Ausbaus von Wärmepumpen auf den deutschen Stromsektor untersucht. Knapp sechs Millionen zusätzliche Wärmepumpen würden den Strombedarf ...
2022| Alexander Roth, Carlos David Gaete Morales, Adeline Guéret, Dana Kirchem, Martin Kittel, Wolf-Peter Schill
-
DIW Weekly Report 40/41/42 / 2023
Replacing fossil fuels with renewable energy sources is one cornerstone of the energy transition. In certain sectors, green hydrogen will play an important role in the future, as is envisioned in the revised National Hydrogen Strategy recently presented by the German Federal Government. This Weekly Report discusses important changes in this strategy compared to the first National Hydrogen Strategy ...
2023| Martin Kittel, Dana Kirchem, Wolf-Peter Schill, Claudia Kemfert
-
DIW Weekly Report 22/23 / 2022
Increasing the use of heat pumps is an important measure for reducing carbon emissions in the heating sector as well as natural gas imports. This report uses an electricity sector model to investigate the effects of an accelerated expansion of the heat pump stock on the German electricity sector in 2030. Adding around six million heat pumps would increase electricity demand by nine percent in 2030; ...
2022| Alexander Roth, Carlos David Gaete Morales, Adeline Guéret, Dana Kirchem, Martin Kittel, Wolf-Peter Schill
-
Refereed essays Web of Science
Significant amounts of electricity consumed in air and water pumping make wastewater treatment energy-intensive. This study investigates the potential power system benefits of load shifting within these pumping processes. As a case study, the Irish power system and wastewater sector are studied by using an integrated modelling approach. The results show that demand flexibility within the wastewater ...
In:
Applied Energy
381 (2025), 125128, 19 S.
| Dana Kirchem, Recep Kaan Dereli, Muireann Á. Lynch, Eoin Casey
-
Refereed essays Web of Science
Conventional wastewater treatment plants consume significant amounts of electricity. The constant aeration of the wastewater in order to foster the growth of microorganisms or the pumping of wastewater are two examples for energy-intensive processes within a plant. Case studies have shown that switching off blowers and inlet pumps for a certain period of time is possible without a loss in water quality. ...
In:
Journal of Environmental Chemical Engineering
12 (2024), 1, 111717
| Dana Kirchem, Matteo Giberti, Recep Kaan Dereli, Juha Kiviluoma, Muireann Á. Lynch, Eoin Casey
-
Refereed essays Web of Science
Heat pumps play a major role in decreasing fossil fuel use in heating. They increase electricity demand, but could also foster the system integration of variable renewable energy sources. We analyze three scenarios for expanding decentralized heat pumps in Germany by 2030, focusing on the role of buffer heat storage. Using an open-source power sector model, we assess costs, capacity investments, and ...
In:
Communications Earth & Environment
5 (2024), 718, 12 S.
| Alexander Roth, Carlos Gaete-Morales, Dana Kirchem, Wolf-Peter Schill
-
Refereed essays Web of Science
The use of green hydrogen can support the decarbonization of sectors which are difficult to electrify, such as industry or heavy transport. Yet, the wider power sector effects of providing green hydrogen are not well understood so far. We use an open-source electricity sector model to investigate potential power sector interactions of three alternative supply chains for green hydrogen in Germany in ...
In:
Energy Policy
182 (2023), 113738, 15 S.
| Dana Kirchem, Wolf-Peter Schill
-
Externe Monographien
Heat pumps are a key technology for reducing fossil fuel use in the heating sector. A transition to heat pumps implies an increase in electricity demand, especially in cold winter months. Using an open-source power sector model, we examine the power sector impacts of a massive expansion of decentralized heat pumps in Germany in 2030, combined with buffer heat storage of different sizes. Assuming that ...
Ithaca:
arXiv.org,
2023,
27 S.
(arXiv ; 2307.12918)
| Alexander Roth, Dana Kirchem, Carlos Gaete-Morales, Wolf-Peter Schill