Average full (including capital, operation and maintenance costs) annual heating costs in a 2 standard family house with 180 m of floor surface are compared for various heating systems under the Polish economic conditions. The compared heating technologies comprise water to water and ground loop...

Control power (regulating power, balancing power) is used to quickly restore the supply-demand balance in power systems. Variable renewable energy sources (VRE) such as wind and solar power are often thought to increase the reserve requirement significantly. This paper provides a comprehensive...

Efficient district heat production systems (DHSs) can contribute to achieving environmental targets and energy security for countries that have demands for space and water heating. The optimal options for a DHS vary with the environmental and social-political contexts and the scale of district...

Recent work has shown that for high-penetration renewable electricity systems, it is less expensive to install higher capacity of renewables and to allow generation to exceed load during some hours, rather than to build so much storage that all electricity can be used to meet electrical load....

The University of Debrecen, Faculty of Engineering, has been conducting a research program in geothermal energy since 2008. This program enabled me to devise an analytical study of the monetary and non-monetary criteria of geothermal projects. The monetary criteria of a region or a location for...

The market of heating systems changed considerably in 12 years. Due to their high losses, poor quality, and high prices, the district heating systems were replaced by micro thermal plants that seemed more cost efficient at that time. As the market changed the interest for affordable modern...

Data mining and knowledge discovery applied to the billing data provide the diagnostic instruments for the evaluation of energy use in buildings connected to a district heating network. To ensure the validity of an algorithm-based classification system, the dynamic properties of a sequence of...

Distributed energy systems facilitated by heat networks are rising in the UK as a viable option to decarbonise the heating sector, particularly at a community level (up to several MW). However, in this respect there is lack of suitable modelling tools and studies to assess the techno-economic...

District heating is regarded as a key element of energy saving actions in the Chinese national energy strategy, while space heating in China is currently still dominated by coal boilers. However, there is no existing quantitative study to analyse the future heat strategy for China. Therefore, it...

Since the 70s of last century, precisely in 1973th when the first oil crisis happened due to a sudden increase in the price of oil, and 1979th when the second oil crisis happened, energy has become one of the priority themes of the European Union. In terms of the common electricity and natural...