countries in 2023. This substitution occurs because biomethane and biogas are produced and used in the same local and regional markets, allowing them to directly replace the volume of natural gas overall dependence on natural gas. Denmark has used this local model to replace 34% of its natural other European countries represented in the graph, this localised production and consumption cycle generally offset between 3% and 6% of national natural gas needs. According to EBA (European Biogas Association, 2024), there were 29 active bio-liquefied natural gas (Bio-LNG) plants in operation in Europe by the end of 2023, and this number increased sharply in 2024 (+ 28 plants) and is expected to increase further in 2025 (+ 47 plants), with an estimated total production capacity of 21.1 TWh in 2025. (Regulation (EU) 2023/1804) establishes in Article 8 "Infrastructure for liquefied methane for road transport vehicles" that by 31 December 2024, liquefied methane are deployed, at least along the TEN-T core network, in order to allow heavy-duty motor vehicles using liquefied methane to circulate throughout the Union, where there is demand, unless the costs of doing so are disproportionate to the benefits, including environmental benefits. This solution is of a particular importance in countries with less developed natural gas grid. The EU