Burg Patrik author Mašán Vladimír author Dušek Martin author Zemánek Pavel author Rutkowski Kazimierz author text journal article 2017 The most important sources of biomass energy are currently coming from agricultural activity. A sizeable portion in production areas is waste wood after the winter cut of orchards and vineyards, which cover areas exceeding 30,000 ha in the Czech Republic. The most important are species like apples, peaches, apricots, plums, sweet cherries, sour cherries and grapevines. Average production of wood mass for individual species of fruit trees and grapevines ranges from 1,540 kg/ha up to 6,762 kg/ha, i.e. 1.5 t/ha to 6.8 t/ha. The calorific value for these species ranges from 14.70 to 16.39 MJ/kg, with moisture between 6 and 8%. The results show that the total measured energy potential of the fruit species-cultivated areas is 1,469.7 TJ for the whole Czech Republic. net calorific value; waste wood; wood production; total energetic potential 10.17221/30/2017-RAE https://rae.agriculturejournals.cz/artkey/rae-201710-0001.php https://rae.agriculturejournals.cz/artkey/rae-201710-0001.php continuing 63 10 S1 S7 2017 12129151 periodical academic journal