The energy saving properi es of an exisi ng solar collector investment has been assessed based on factual data and stai si cal methods. The seasonality of electricity, water and gas consumpi on has been determined. The number of guest nights, the electricity and gas consumpi on showed a strong and a moderate correlai on. The costs saved did not... live up to the expectai ons, which makes the return indicators signifi cantly worse. The discrepancy may be due to the system being designed to be bigger than reasonable or the great energy loss as well. The lat er may be because of the distance between the collectors and the hot water containers. The system may have calibrai on problems as well. The whole area brings about saving an amount of energy that equals to HUF 851000, which translates into 8788 m3 of natural gas. The decrease of CO2 emission should come to 16.26 t. on an annual average.
The topic of our presentai on is the assessment of the current situai on of the Hungarian poultry sector. According to a forecast issued by the United States Department of Agriculture (USDA), of all types of meat, poultry meat produci on may expand to the greatest extent over the period of 2011 to 2020. The quesi on is whether it is possible fo...r Hungary to take advantage of this favourable situai on. We will outline the history of the poultry sector since the transii on period, the impact of the accession to the European Union and the current situai on and the problems of the sector. We will discuss the sector’s compei i ve disadvantages (drop in exports, growth of imports, technological backwardness, lack of sector strategy, underdeveloped integrai on etc.). We will also include other factors that make the situai on of the sector harder (energy prices, feed prices, tax system, black economy, etc.). Finally, we will examine the possible strategic steps to improve the situai on of the sector.
Ecology is ot en suppressed compared to produci vity, which makes us believe that economy is more important than ecology. With the growth of social need for traceability, food safety and food security, the trend is to turn away from conveni onal technologies. The ecological approaches all must cope with signifi cant loss of yield, which hinders... their wide applicai on. Precision farming can be an opi on for the management to keep the high yield levels and decrease inputs at the same i me. The authors analyse, according to primary and secondary sources, precision farming compared to conveni onal and ecological farming to see the advantages and drawbacks of the diff erent technologies.
In our paper, we survey the changes of the last 10 years regarding the use of renewable energy in Hungary and the surrounding EU countries (Austria, Bulgaria, Croatia, Czech Republic, Poland, Romania, Slovakia and Slovenia). In 2015, the share of renewable energy in EU28 is 16.7% of final energy consumption, 28.8% of electricity, 18.6% of heati...ng/cooling and 6.7% of transport. We present the renewable energy targets of Hungary and the surrounding member states and
their fulfillment in 2015. We also look at the share of the gross domestic energy and renewable energy consumption.