Abstract
The climate in Poland is slightly disparate in each region. The differences in temperature not always come along with the intensity of solar radiation in 5 climate zones. South of the country is colder, but well irradiated by the Sun and northern regions have milder climate, but are less irradiated. This fact alone makes people consider the suitability and safety of using renewable energy sources such as air-to-water heat pumps, solar collectors and photovoltaics instead of more traditional, fossil fuel powered sources. This paper presents a comparison analysis of energy demand and the cost for heating in a group of single-family buildings by 4 variants (gas boiler, gas boiler and solar collectors, air-to-water heat pump, air-to-water heat pump and photovoltaics) in 5 chosen cities in each polish climate zone. Calculations were done for space heating and domestic hot water energy demand, CO2 emissions and cumulative costs for all variants and locations. The results confirm the inconsistency of polish climate and have shown profitability and utility of renewable energy sources.
Highlights
The energy consumption is constantly rising, meaning the harmful effects of burning fossil fuels will be more dangerous [1], as the current emissions level is already affecting environment and peoples heath strongly [2]
The main aim of this paper is to show performance of 3 variants of ecological heat source systems for a group of houses compared by emission and combined investment and maintenance cost to natural gas boiler heating system in all five climate zones in Poland
Analysis of solar powered sources were calculated with simplified efficiency methods presented in Efficient Buildings with Solar and Geothermal Resources [3], which are accurate enough for an analysis based on statistic data [11]
Summary
The energy consumption is constantly rising, meaning the harmful effects of burning fossil fuels will be more dangerous [1], as the current emissions level is already affecting environment and peoples heath strongly [2]. The implementation of new technologies and renewable energy and heat sources is desperately needed in Poland in order to decrease current emission level, but the application of renewable energy sources in Poland slowly grows every year This fact is mostly determined by high investment cost in new energy sources and people awareness, that because of polish cold climate and solar irradiation weaker than in the southern countries, this type of powering will not be safe. In favour of renewable energy sources usage for heating is the indication, that harshness of climate in Poland goes together with bigger intensity of solar irradiation [6]. This paradox results from the geographical characteristic of polish climate. The results will show effectiveness and profitability of using renewable energy sources and the differences in efficiency of the same heating systems. depending on their location
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
