Tissue and toilet paper — BMP: 2 studies, weighted mean 372 m³ CH₄/t VS
372 m³ CH₄/t VS weighted mean from 2 studies
≈51 %
Knowledge compendium — page 38
1,083 articles on biogas, biomethane, bioLNG, biohydrogen, waste-to-energy, waste and regulation — since December 2019. Filter by category, type, year and tag.
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Chlamydomonas reinhardtii — BMP: 2 studies, weighted mean 346 m³ CH₄/t VS
346 m³ CH₄/t VS weighted mean from 2 studies
≈58 %
Waste activated sludge (secondary sludge) — BMP: 12 studies, weighted mean 151 m³ CH₄/t VS
151 m³ CH₄/t VS weighted mean from 12 studies
negative — editorial rating for biogas plants≈58 %
Pennisetum giganteum (Juncao grass) — BMP: 2 studies, weighted mean 246 m³ CH₄/t VS
246 m³ CH₄/t VS weighted mean from 2 studies
≈54 %
Pepper plant leaves and stems — BMP: 5 studies, weighted mean 170 m³ CH₄/t VS
170 m³ CH₄/t VS weighted mean from 5 studies
59 %
Confectionery waste — BMP: 6 studies, weighted mean 318 m³ CH₄/t VS
318 m³ CH₄/t VS weighted mean from 6 studies
neutral — editorial rating for biogas plants≈63 %
Digester start-up: inoculum, heating and load build-up
How to start a new or emptied digester: filling, inoculum, gradual heating, gas control and a safe path to the full feed rate over weeks.
RED II and electricity support: market premiums, auctions and protection against retroactive changes
Directive 2018/2001 requires renewable energy support to be market-based rather than fixed tariffs. It also prohibits retroactive changes and allows national support schemes to be opened to generators from other countries.
Biomethane grid injection station: components, layout and functions
The injection station is the last element of a biomethane plant: it measures the quality and quantity of the gas, regulates pressure, odorises and cuts off non-compliant gas. We describe the components and the order of the equipment.
Vinasse and filter cake: why Brazilian sugar mills combine biogas with fertilising fields
Vinasse is a liquid waste from distilling ethanol from cane, traditionally used as a fertiliser. We explain what anaerobic digestion changes, what role filter cake plays and what the limitations are.
Regulation (EU) 2021/241 on the Recovery and Resilience Facility signed
On 12 February 2021, the regulation establishing the RRF recovery fund, worth EUR 672.5 billion, was signed. At least 37% of the funds of national plans are to support climate goals.
Rice straw and pig slurry: biological pretreatment with a cellulolytic microflora gives 342 mL CH₄/g VS
Researchers from Jiangxi Agricultural University increased the methane yield from the co-digestion of rice straw and pig slurry by about 45% through biological pretreatment with a cellulolytic microflora.
UPPZ: Regulation 1069/2009 and material categories 1, 2 and 3 in a biogas plant
Animal by-products fall into three risk categories. We explain what belongs to categories 1, 2 and 3 and what may be done with them in a biogas or composting plant.
Turkey: YEKDEM reworked — biogas at 0.54 TL/kWh, lira rates with a USD cap
Presidential Decision No. 3453 of 30 January 2021 converted Turkish YEKDEM support into lira: 0.54 TL/kWh for biogas and 0.32 TL/kWh for landfill gas, with a cap in US cents.
Korea: the hydrogen economy act has been in force since 5 February 2021
The Act on the promotion of the hydrogen economy and hydrogen safety entered into force on 5 February 2021 and established a committee chaired by the prime minister.
Flotation sludge (DAF skimmings) — BMP: 3 studies, weighted mean 600 m³ CH₄/t VS
600 m³ CH₄/t VS weighted mean from 3 studies
neutral — editorial rating for biogas plants≈61 %
The government adopts Poland's Energy Policy to 2040 (PEP2040)
On 2 February 2021, the Council of Ministers adopted PEP2040: three pillars, a target of at least 23% RES in 2030, a falling share of coal in electricity generation, and the development of offshore wind, photovoltaics and nuclear power.
Orlen Południe is building its first own biogas plant in Głąbowo, with a biomethane plan
Orlen Południe has taken over an unfinished biogas plant in the Ryn municipality and intends to complete it as a biomethane plant producing about 7 million m³ per year. Completion was planned for the end of 2022.
Chile: the first targets decree under the REP law — tyres from 2021, full effect from 2023
On 20 January 2021 decree DS 8/2019 was published, setting collection and recovery targets for end-of-life tyres under Chile's REP law on extended producer responsibility.
EBA statistical report: 18,943 biogas plants and 725 biomethane plants in Europe
The European Biogas Association published on 25 January 2021 a report for 2019: 167 TWh of biogas and 26 TWh of biomethane, with data from 19 countries.
Foaming in the digester: causes, risks and control methods
Foam in the digester can block gas pipelines and damage the roof. We set out the causes, immediate measures, antifoams and prevention.
Dairy wastewater biological sludge — BMP: 2 studies, weighted mean 293 m³ CH₄/t VS
293 m³ CH₄/t VS weighted mean from 2 studies
negative — editorial rating for biogas plants≈66 %
Fixed price or day-ahead market? A biogas plant in H2 2020
Will a biogas plant on the RDN earn as much as on FIT? In H2 2020: no — PLN 236.6/MWh against PLN 617.5/MWh. The series method and support law.
Consultation begins on the draft Polish Hydrogen Strategy to 2030 with an outlook to 2040
On 14 January 2021, the Ministry of Climate and Environment published the draft hydrogen strategy. It assumes 2 GW of electrolyser capacity by 2030 and six strategic goals.