Biogas is produced in methane fermentation, i.e. the anaerobic decomposition of organic matter by microorganisms. It is a mixture of mainly methane and carbon dioxide, and its energy value depends on the methane share.
RSSArticles on agricultural, waste-processing and municipal biogas plants: choice of substrates, process parameters, cogeneration, safety and plant economics.
Construction of the Słupsk Bioenergy Island (Słupska Wyspa Bioenergetyczna) is under way at the wastewater treatment plant in Słupsk: sludge hydrolysis, a 2,700 m³ biogas tank, 1 MW cogeneration, 1 MW/2.4 MWh energy storage and a heat pump. Cost PLN 62.1 million, of which about PLN 37.25 million from the National Recovery and Resilience Plan (KPO).
The Local Government Appeals Board in Katowice upheld the environmental decision for the municipal biogas plant in Rybnik-Niewiadom on a reclaimed spoil heap. A residents' association protested; the decision can be appealed to the Voivodeship Administrative Court (WSA).
Three main routes: cogeneration, heat alone and upgrading to biomethane. A comparison of technical requirements, scale, off-takers, efficiency and risks, without rates and prices.
Agricultural biogas is usually 50–65% CH₄, the rest mainly CO₂. Where fluctuations over the day and the season come from, how the substrate affects composition, and how to measure gas flow and composition correctly.
Step by step: from the mass of substrates and their VS to methane production, energy in the fuel, and net electricity and heat. Explicit assumptions, tables and a sanity check of the result.
Acidogenesis and acetogenesis convert the products of hydrolysis into acids, hydrogen and acetate. We explain why these stages depend on cooperation with methanogens and what their disruption means for the operator.
According to the CIBiogás Biogas Panorama 2025, about 1,803 biogas installations operate in Brazil, and production is approaching 5 billion Nm³ a year; a 5% rise in number and 6% in volume.
The Environmental Conservation Center in Shikaoi has operated since 2007 and processes slurry; since 2017 biogas has been upgraded with membranes and converted to hydrogen, and since 2022 a hydrogen station has operated there.
On 26 March 2025 NFOŚiGW announced the acceptance by the European Investment Bank of the programme "High-efficiency cogeneration from biogas produced from biomass, including municipal waste": PLN 1 billion from the Modernisation Fund.
The British Anaerobic Digestion and Bioresources Association (ADBA) has warned that after FiT and ROC support expires, hundreds of small biogas plants will cease operation by 2031. More than 160 installations will lose support within five years, and more than 400 in the following five.
The company Polska Grupa Biogazowa (part of TotalEnergies) has launched in Bagdad in Greater Poland an agricultural biogas plant producing about 8.3 GWh of electricity and 8 GWh of heat a year. It is its 19th installation in Poland.
NFOŚiGW published for consultation (until 18 August 2024) a programme supporting high-efficiency cogeneration from municipal biogas: up to PLN 2.5 billion, including up to PLN 1 billion in grants and PLN 1.5 billion in loans.
E.ON Polska has advanced construction of its first own agricultural biogas plant near Pułtusk: 1 MWe, about 8 GWh of electricity a year, with commissioning planned for December 2024.
The environment ministry strategy aims at producing up to 500 million Nm³ of biogas a year by 2026, cutting emissions by 1 million t a year and processing 5.57 million t of organic waste.
The Bundesnetzagentur tender for continued support of biogas plants: 788 bids for 742 MW against a volume of 240 MW. The industry warns of closures of installations that heat schools and homes.
According to EPA AgSTAR, 343 commercial farm biogas plants (290 dairy) were operating in January 2023, and 400 as of June 2024; in 2023 emissions fell by 14.8 million t CO₂e.
Berlin processes biowaste at Ruhleben into biomethane for refuse trucks, and since 2012 Oslo has fuelled buses with biogas from food waste. What do these examples mean for Polish cities?
NFOŚiGW announced the FENX.02.02 "Renewable energy development" call under the FEnIKS programme with a pool of PLN 300 million. Applications were to be accepted from 29 February to 13 May 2024.
For decades China built small digesters at farms. Since the middle of the previous decade state support has been shifting towards large projects, and the number of active household installations is falling.
On 28 December 2023 the Ministry of Environment announced that, from 31 December, an act has applied that obliges large producers of organic waste – pig farms, slurry treatment plants and food waste producers – to produce biogas (from 2025 for public entities, from 2026 for private ones).
On 5 December 2023 the European Biogas Association published a new statistical report: biomethane production in 2022 rose by 20% to 4.2 billion m³, and biogas and biomethane together supply 21 billion m³ of gas.
The regulation of 12 October 2023 sets out the detailed list of substrates that may be used in an agricultural biogas plant: manure, straw, agricultural and food industry waste, by-products. It enters into force on 18 October.
On 13 July 2023 the Sejm accepted the Senate's amendments to the act on facilitations for agricultural biogas plants. The act sets capacity limits (3.5 MW electrical), shortens land development decisions to 65 days and introduces a siting resolution.
On 27 June 2023 the Swedish government announced support equivalent to gödselgasstöd also for Q4 2023. The pilot scheme from 2014 pays up to 40 öre per kWh of biogas from slurry.
