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Article
Energy & Fuels
Christina Kockel et al.
Summary: While progress has been made in reducing greenhouse gas emissions in the power sector, sectors such as transportation and heating are lagging behind. Sector coupling is a strategy to extend emission reductions from the power sector to other sectors. This study analyzes the extent of energy demand matching renewable energy supply and explores the impacts of sector coupling pathways on future infrastructure requirements. Findings provide policy recommendations for integrating renewable energy sources into present energy systems effectively and efficiently.
Article
Environmental Sciences
Oliver Ruhnau et al.
Summary: This article investigates the relationship between scarcity periods of wind and solar resources and energy storage requirements in a 100% renewable electricity system. The study reveals that while scarcity periods typically do not exceed two weeks, the maximum energy deficit may persist for nine weeks. Considering storage losses and charging limitations, the period defining storage requirements may extend up to 12 weeks. The cost-optimal storage capacity needs to be large enough to supply 36 TWh of electricity.
ENVIRONMENTAL RESEARCH LETTERS
(2022)
Article
Thermodynamics
Manuel Laemmle et al.
Summary: Heat pumps face challenges in existing buildings due to high temperature requirements of existing radiator systems. This paper links heat pump performance analysis with methods to reduce space heating temperatures, demonstrating the potential for energy and cost-efficient operation of retrofitted heat pumps in existing radiator heating systems.
Article
Thermodynamics
Andreas V. Olympios et al.
Summary: This paper develops a consistent thermodynamic and economic methodology to assess the competitiveness of different options for transitioning away from natural gas in domestic heating. The study compares electrification, hydrogen substitution, and district heating, and shows that electrification with electric heat pumps is the least-cost decarbonisation pathway. However, if hydrogen is produced cost-effectively by methane reforming and carbon capture and storage, the total system cost associated with hydrogen technologies becomes more competitive.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Green & Sustainable Science & Technology
Evan Mills
Summary: Despite extensive public funding and promotion of highly energy-efficient heat pump water heaters (HPWHs) in the US, market adoption has fallen far short of expectations. In contrast, in countries across Europe, Asia, and the Middle East, greater public-private coordination has led to relative success of HPWHs in residential, commercial, industrial, and municipal settings.
Article
Thermodynamics
Jacek Kapica et al.
Summary: This study addresses the lack of global complementarity study between solar and wind resources using the same data source and methodology. Findings show that Kendall's Tau correlation ranges between -0.75 and 0.75 globally, with a recommendation for solar dominance in tropical and subtropical regions to minimize daily energy production variability.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Meteorology & Atmospheric Sciences
Hein Dieter Behr et al.
Summary: The integration of solar energy in Germany's energy mix has grown significantly over the past two decades, highlighting the importance of quantifying spatiotemporal variations of solar energy for efficient promotion of photovoltaic systems and grid stability. Clouds and aerosols play a crucial role in affecting the solar energy penetrating the atmosphere. The long-term increase in solar radiation, particularly in spring, is mainly influenced by changes in cloud cover, emphasizing the need for storage systems to make good use of harvested solar energy.
METEOROLOGISCHE ZEITSCHRIFT
(2021)
Article
Green & Sustainable Science & Technology
Jaqueline Druecke et al.
Summary: Solar and wind energy are crucial for energy supply in Germany and Europe, with production highly dependent on weather conditions and seasonal variations. Shortfall events, mainly occurring in Germany during winter, are associated with high pressure systems over Central Europe. The study highlights the interdependence of renewable energy production and weather regimes.
Article
Construction & Building Technology
S. D. Watson et al.
Summary: Transitioning to heat pumps for heating can reduce the overall heat demand in UK households, as well as decrease peak heat demand and heat ramp rate. Accurately modeling heating patterns is crucial for reliable predictions of national heat demand.
ENERGY AND BUILDINGS
(2021)
Article
Thermodynamics
Dmitrii Bogdanov et al.
Summary: The article emphasizes the necessity of a rapid transformation of the global energy system, proposing a specific pathway towards renewable energy systems, which will bring important benefits such as energy savings, universal access to fresh water, and low-cost energy supply.
Article
Thermodynamics
Henrik Lund et al.
Summary: This article compares the differences and similarities between fourth-generation district heating (4GDH) and fifth-generation district heating and cooling (5GDHC) in terms of their goals and abilities, finding that they share common objectives in decarbonization and to some extent, essential abilities. Fifth-generation district heating and cooling focuses on combined heating and cooling using a collective network close to ambient temperature levels as a heat source or sink for building-level heat pumps.
Article
Multidisciplinary Sciences
Jan Priesmann et al.
Summary: The analysis of future energy systems requires appropriate data, with a focus on energy consumption patterns for heat, cold, mechanical energy, information and communication, and light. The dataset provides comprehensive data on residential, industrial, commerce, and mobility consumers, aggregated and disaggregated to the NUTS2 level for validation and calculations. Multiple data sources are combined to enhance the scope, validity, and reproducibility of energy system modeling, particularly for scenarios involving renewable electricity replacing fossil fuels.
Article
Construction & Building Technology
Zheng Wang et al.
Summary: Heat pumps are increasingly popular in buildings for their energy efficiency and ability to utilize renewable energy sources. Correct selection of a heat pump system can help increase self-consumption of solar PV generation and contribute to achieving net-zero energy building operation.
Review
Environmental Studies
Ankita Singh Gaur et al.
Summary: This paper highlights the significance of heat pumps in decarbonizing the heating sector globally and their role in providing flexibility and reducing carbon emissions in renewable-rich systems. Despite the great potential of heat pumps, they face challenges related to technology, location, and policy barriers.
ENERGY RESEARCH & SOCIAL SCIENCE
(2021)
Article
Energy & Fuels
Wilko Heitkoetter et al.
Article
Environmental Sciences
Silvia Madeddu et al.
ENVIRONMENTAL RESEARCH LETTERS
(2020)
Article
Green & Sustainable Science & Technology
Florian Knobloch et al.
NATURE SUSTAINABILITY
(2020)
Article
Environmental Sciences
Jens Clausen et al.
ENVIRONMENTAL INNOVATION AND SOCIETAL TRANSITIONS
(2019)
Article
Multidisciplinary Sciences
Dan Tong et al.
Article
Construction & Building Technology
S. Kozarcanin et al.
ENERGY AND BUILDINGS
(2019)
Article
Multidisciplinary Sciences
Oliver Ruhnau et al.
Article
Environmental Sciences
Riyanti Djalante
PROGRESS IN DISASTER SCIENCE
(2019)
Article
Green & Sustainable Science & Technology
Mark Z. Jacobson et al.
Article
Thermodynamics
T. Brown et al.
Review
Chemistry, Multidisciplinary
Iain Staffell et al.
ENERGY & ENVIRONMENTAL SCIENCE
(2012)
