“…These crops will not only effectively protect the soil from erosion, but will also serve as a source of bio-raw materials for the production of solid fuels, such as fuel briquettes or pellets, in rural areas [Petrychenko et al, 2014;Kurgak et al, 2020]. According to the analysis of literary sources [Roik et al, 2011;Heletukha et al, 2013;Heletukha et al, 2013;Dumych et al, 2013;Liu et al, 2023] it can be determined that research on the energy potential of perennial herbaceous phytocenosis of Ukraine and measures to increase their energy productivity has been carried out rather limitedly. The relevance of further research on this issue increases due to the increase in the cost of non-renewable primary energy sources and the decrease in the need for grass feed, as the number of livestock decreases [Kurgak, 2010;Woźniak, 2019;Lys et al, 2023].…”