The recent energy crisis in Europe has underlined the importance of a fast replacement of fossil fuels like natural gas by green energy carriers. Great hopes for quick decarbonisation mostly rest on two technologies, hypothesized to form a "perfect match": Combined heat and power (CHP)...

I examine the pricing behavior of municipal and private firms in the unregulated Swedish district heating market, characterized by geographically bounded local monopoly networks. Conditional on exogenous cost factors, private firms charge on average seven percent higher prices compared to their...

The recent energy crisis in Europe has underlined the importance of a fast replacement of fossil fuels like natural gas by green energy carriers. Great hopes for quick decarbonisation mostly rest on two technologies, hypothesized to form a "perfect match": Combined heat and power (CHP)...

I examine the pricing behavior of municipal and private firms in the unregulated Swedish district heating market, characterized by geographically bounded local monopoly networks. Conditional on exogenous cost factors, private firms charge on average seven percent higher prices compared to their...

RESTORE focuses on making district heating and cooling networks 100% renewable through an innovative concept. The project developed a reversible organic Rankine cycle system (rORC) capable of storing renewable energy in a thermochemical energy storage. The storage is discharged to generate...

Numerous measures have been taken in recent years to achieve climate protection targets in Germany’s building sector. With the newly established Ariadne German Heating and Housing Panel (GHHP), the prerequisite for a well-founded evaluation of the effectiveness, distribution effects, and...

Urban manufacturing is increasingly discussed as a contributor to sustainable urban development, particularly through its potential to supply industrial waste heat for district heating networks (DHN). This paper examines whether urban manufacturing in Germany can provide a meaningful source of...

This paper analyzes decarbonization strategies for district heating and their carbon footprint based on two separate literature reviews. The first review evaluates 90 studies to identify and classify decarbonization strategies along the district heating supply chain using the Avoid-Shift-Improve...

Existing energy security index (ESI) studies focus on individual countries, with indicators chosen according to the specifics of the country or the region. This study assesses the ESI for district heating (DH) in Latvia through a composite index methodology. The index consists of 10 indicators,...

By its Climate Protection Act Germany is committed to net zero GHG emissions by 2045, implying zero emissions from space heating, a major part of final energy consumption. The present political discussion reflected in recent legislation is dominated by use of heat pumps and renewable power. This...

While electricity-based energy communities (ECs) have received significant scientific attention, heat-based ECs have not gotten the attention they deserve. This paper builds upon the hypothesis that ECs could be a lever to increase the adoption rates of district heating and thus contribute...

The district heating system in Heerlen, the Netherlands makes use of an innovative approach: using mine water from a former coal mine as a geothermal heating source and for energy storage. The system is one of the first so-called 5th generation district heating and cooling (5GDHC) grids, an...

To tackle climate change, residential heating must become climate-neutral. Which technology cost-efficiently achieves this goal is a complex question, given the heterogeneity of buildings and existing infrastructure, as well as the uncertainty regarding future energy prices and grid fees. This...

A substantial body of systematic literature reviews has focused on the topic of industrial decarbonization. However, the decarbonization of industrial heating systems has been hampered by the continued reliance on fossil fuels for industrial heating. Remarkably, at the temperature level of...

By its Climate Protection Act Germany is committed to net zero GHG emissions by 2045, implying zero emissions from space heating, a major part of final energy consumption. The present political discussion reflected in recent legislation is dominated by use of heat pumps and renewable power. This...

This investigation examines the impact of COVID-19 on households in Mongolia, particularly the choice of fuel for heating and cooking and awareness about harmful effects of indoor pollution due to the combustion of solid fuels for heating and cooking. This study uses publicly available MICS Plus...

The People's Republic of China (PRC) has taken bold actions since 2016 to utilize low-grade industrial excess heat to improve the energy efficiency of district heating systems. This study aims to draw policy insights into the PRC's field experience of overcoming barriers to energy efficiency...

Article 24 of the Renewable Energy Directive (RED II) addresses district heating and cooling (DHC) by strengthening the role of consumers (paragraphs 1, 2, 3) and by encouraging an increase of renewable energy sources (RES) in DHC (paragraphs 4, 5, 6). According to paragraph 1 of this Article,...

In this study, the actual operation status of the cogeneration model was investigated to examine the difference between the theoretical evaluation and the field operation situation. The adequacy of the installed capacity of the cogeneration system was assessed by using in-house developed...

This report was created within the project "Overview of Heating and Cooling: Perceptions, Markets and Regulatory Frameworks for Decarbonisation." The focus of this report is on the evaluation of the final cost for owning and operating district heating (DH) connections and heat pumps (HPs) for...

District heating can help to integrate renewable generation within the electricity domain and thus reach climate and energy goals by providing flexibility services and stabilizing the electricity grid. To determine the economic viability of such flexibility services, this work presents a...

Homeowners face a water versus heat tradeoff when it comes to replacing thirsty grass lawns with water-conserving landscaping, a process touted by water agencies in the U.S. West as a top way to conserve water. Using nearly 200,000 rebate records and remotely-sensed temperature data from...

Die integrierte Netzentwicklungsplanung beschreibt den Prozess für eine gemeinsame strategische Infrastrukturplanung für die leitungsgebundenen Energieträger Strom, Gas und Fern-/bzw. Nahwärme. Im Projekt iNeP wird dafür am Beispiel der Industriemetropole Hamburg eine Methodik entwickelt,...

Using industrial excess heat for residential heating can increase energy efficiency and thus be part of the solution to achieving the EU's climate targets. However, industrial plants are often located in industrial areas and thus away from residential areas. Therefore, the excess heat has to be...

District heating grids worldwide are still powered predominantly by combustion of fossil fuels. In order to decarbonize them, new designs for the district heating and cooling systems are required. This paper describes the laboratory at the research center for Combined Smart Energy Systems...

The feasibility of using air-water heat pumps to provide residential and industrial buildings with heating, cooling and ventilation requires taking into account a large number of different factors, such as the estimated and average outdoor temperature for the heating period in the considered...

Numerical simulations of district heating and cooling networks constitute a valuable tool for system design and optimization. This paper presents a novel thermo-hydraulic network model, which addresses particularly large 5th generation district heating and cooling (5GDHC) networks. We paid...

In order to verify the versatility of the experimental correlations of the previous work, and the same experimental method from the previous work is selected to obtain the heat transfer characteristics of the salt and subcritical water in the model of tube-shell heat exchanger. and it is...