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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A deficiency of micronutrients can bring the process to a halt even with a correct mix. We explain the role of Co, Ni, Se, Mo, W and Fe, the symptoms of deficiency and the rules of safe supplementation.
On 3 November 2020 the Chilean government presented its green hydrogen strategy: the cheapest hydrogen in the world by 2030, a place among the top three exporters by 2040 and 5 GW of electrolysis under development by 2025.
In the auction of 5 November 2020 for new installations above 1 MW (biogas other than agricultural, biomass, thermal waste treatment), 0.32 TWh was sold out of almost 11 TWh offered. Two district heating companies won.
Before CO₂ separation, biogas must be dried and cleaned of H₂S, siloxanes, ammonia and VOC. We describe desulphurisation methods, the order of equipment and design errors.
The Swedish electricity certificate system has operated since 2003 (jointly with Norway since 2012). The government decided to shorten it to 2035 (instead of 2045) and to close it to installations commissioned after 2021.
Biogas and biomethane count as renewable under RED II only once they meet a GHG emission reduction threshold: 65% in transport or 70–80% in energy. We explain the thresholds, calculation methods and mistakes.
105 m³ CH₄/t VS weighted mean from 2 studies
≈52 %
Law No. 202 of 2020 regulates the handling of hazardous and municipal waste in Egypt, introduces licences and creates the Waste Management Regulatory Authority. It is linked to the waste-to-energy tariff.
184 m³ CH₄/t VS weighted mean from 7 studies
neutral — editorial rating for biogas plants≈64 %
221 m³ CH₄/t VS weighted mean from 3 studies
≈58 %
Where H₂S in biogas comes from, how it inhibits methanogenesis, what its concentration depends on and how iron binds sulphides in the digester. Indicative values and pitfalls.
Communication COM(2020) 663 announces rules for the energy sector, a plan for agriculture and waste, and an International Methane Emissions Observatory. Biogas and biomethane are identified as a way of reducing emissions.
On 13 October 2020 the minister of climate and industry representatives signed a letter of intent on a partnership for the development of biogas and biomethane. It is the start of a process leading to a sector agreement.
Municipal sewage sludge may be applied to land only if the conditions of the 2015 regulation and Article 96 of the Act on waste are met. Doses, testing, bans and other routes: composting, digestion, incineration.
The biogas technology supplier agriKomp Polska announced the construction of four installations. Some of them may produce biomethane in future if the regulations change.
On 30 September 2020 ANP announced that 10 million CBIO decarbonisation credits had been approved under RenovaBio, that is 67% of the combined target of 14.9 million for 2019–2020.
How much energy does biogas upgrading use? We convert kWh per m³ into a share of the energy of the biomethane produced and show how to add compression to the grid and pretreatment.
In a speech at the UN, the Chinese president pledged a CO₂ emissions peak before 2030 and carbon neutrality before 2060. This is a shift from the earlier pledge of “around 2030”.
253 m³ CH₄/t VS weighted mean from 35 studies
good — editorial rating for biogas plants≈54 %
415 m³ CH₄/t VS weighted mean from 5 studies
very good — editorial rating for biogas plants≈52 %
After the memorandum of 10 June 2020 and Law 810-IX, Ukraine's green tariff for biogas and biomass applies to installations commissioned before 1 January 2023. The industry is protesting.
Communication COM(2020) 562 proposes a target of reducing net emissions by at least 55% by 2030 compared with 1990 and announces a review of the whole energy and climate legislation by June 2021.
Thailand developed biogas mainly alongside agri-food industry and farms. In October 2016, 412 MW of installations were operating, and the 2015 AEDP plan envisaged 600 MW from wastewater and manure and 680 MW from energy crops by 2036.
Acetate, propionate, butyrate and valerate are the everyday picture of the state of the process. We explain how to measure them, how to read the propionate-to-acetate ratio and when to react.
