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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Plastic, metal, stones and sand shorten the life of pumps and settle in the digester. An overview of size reduction methods and of separating contaminants before the digester.
243 m³ CH₄/t VS weighted mean from 6 studies
good — editorial rating for biogas plants≈51 %
520 m³ CH₄/t VS weighted mean from 4 studies
good — editorial rating for biogas plants61 %
275 m³ CH₄/t VS weighted mean from 2 studies
≈52 %
The TDBP programme built 12 thousand biodigesters, but an account from one of the master builders shows a sharp fall in orders after subsidies expired at the end of 2014. Lessons for designing support.
An overview of Mexican agricultural biodigesters based on an assessment prepared at UNAM (data from around 2010): 345 confirmed installations, and the role of the CDM and FIRCO support.
180 m³ CH₄/t VS weighted mean from 3 studies
≈52 %
152 m³ CH₄/t VS weighted mean from 3 studies
≈52 %
37 m³ CH₄/t VS weighted mean from 3 studies
≈58 %
256 m³ CH₄/t VS weighted mean from 6 studies
≈57 %
A biogas plant can be sited on the basis of a local plan or a decision on development conditions. We explain what to check before buying a plot and what changes the years 2023–2026 brought.
bioLNG is biomethane liquefied at about −162°C, with a volume about 600 times smaller than the gas. We explain its properties, advantages, costs and the situations in which liquefaction pays off.
In May 2021 the EPA published a final federal plan for existing municipal solid waste landfills; the plan will enter into force on 21 June 2021 and cover existing landfills where no state plan applies, implementing the 2016 emission guidelines on landfill gas.
Silage, manure and straw enter the digester through a feeder. We compare screw, piston, conveyor and feed-wagon feeders and show how to choose capacity and avoid failures.
The Norwegian company Biokraft ordered a liquefaction installation from Wärtsilä that will double the capacity of the bioLNG plant in Skogn from 25 to 50 tonnes per day. Delivery is planned for May 2022.
417 m³ CH₄/t VS weighted mean from 3 studies
≈66 %
The NDRC and the construction ministry presented a municipal waste infrastructure plan for 2021–2025: incineration capacity of 800,000 t a day and about 60% material utilisation of household waste.
The International Energy Agency's "Net Zero by 2050" report describes the path to neutrality in the energy sector: no new oil and gas fields and a four times faster pace of wind and solar additions.
255 m³ CH₄/t VS weighted mean from 5 studies
≈58 %
Communication COM(2021) 400 brings together EU targets on air, water, soil and waste. It assumes, among other things, a 50% reduction in nutrient losses and halving residual municipal waste by 2030.
On 20 April 2021 Serbia adopted a renewables act: a market premium awarded in auctions for 15 years, with tariffs only for small sources. Until now biogas had about 17 eurocents/kWh.
The UNEP and Climate and Clean Air Coalition report of 6 May 2021 estimates that reducing anthropogenic methane emissions by about 45% by 2030 will avoid almost 0.3°C of warming by 2045.
Orlen Południe and the Polish Oil and Gas Company (PGNiG) signed a letter of intent on a network of biomethane plants. The investments are to be carried out by a special purpose company in which Orlen Południe will take 51% of the shares and PGNiG 49%.
On 29 April 2021 China's parliament passed a law against food waste: obligations for restaurants, fines for misleading customers and the possibility of charges for leftovers.
