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Category Archives: Bioenergy

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14 July 2022, Renew Economy: The madness of cutting down forests to grow food crops for supersonic aircraft biofuels. Regular readers will recognise several recurring themes in my writing, including the risks involved with reviving carbon-intensive supersonic aircraft and the challenges of … Continue reading →

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12 October 2017, WIRED, The Dirty Secret of the World’s Plan to Avert Climate Disaster. IN 2014 HENRIK Karlsson, a Swedish entrepreneur whose startup was failing, was lying in bed with a bankruptcy notice when the BBC called. The reporter had a scoop: On the eve of releasing a major report, the United Nation’s climate change panel appeared to be touting an untried technology as key to keeping planetary temperatures at safe levels. The technology went by the inelegant acronym BECCS (Bio-Energy with Carbon Capture and Storage), and Karlsson was apparently the only BECCS expert the reporter could find. Karlsson was amazed. The bankruptcy notice was for his BECCS startup, which he’d founded seven years earlier after an idea came to him while watching a late-night television show in Gothenburg, Sweden. The show explored the benefits of capturing carbon dioxide before it was emitted from power plants. It’s the technology behind the much-touted notion of “clean coal,” a way to reduce greenhouse gas emissions and slow down climate change…..But here’s where things get weird. The UN report envisions 116 scenarios in which global temperatures are prevented from rising more than 2°C. In 101 of them, that goal is accomplished by sucking massive amounts of carbon dioxide from the atmosphere—a concept called “negative emissions”—chiefly via BECCS. And in these scenarios to prevent planetary disaster, this would need to happen by midcentury, or even as soon as 2020. Like a pharmaceutical warning label, one footnote warned that such “methods may carry side effects and long-term consequences on a global scale.” ……   Still, negative emissions are not mentioned in the Paris Climate Agreement or a part of formal international climate negotiations. As Peters and Geden recently pointed out, no country mentions BECCS in its official plan to cut emissions in line with Paris’s 2°C goal, and only a dozen mention carbon capture and storage. Politicians are decidedly not crafting elaborate BECCS plans, with supply chains spanning continents and carbon accounting spanning decades. So even if negative emissions of any kind turns out to be feasible technically and economically, it’s hard to see how we can achieve it on a global scale in a scant 13 or even three years, as some scenarios require. Read More here

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17 March 2016, Science Daily, Biogas: The flexible way to greater energy yield. Biogas is an important energy source that plays a central role in the energy revolution. Unlike wind or solar energy, biogas can be produced around the clock. Could it soon perhaps even be produced to meet demand? A team of international scientists, including microbiologists from the Helmholtz Centre for Environmental Research (UFZ), scientists from Aarhus University and process engineers from the Deutsches Biomasseforschungszentrum (DBFZ), have been studying the feasibility of this kind of flexible biogas production. Among their findings, for example, is the discovery that biogas production can be controlled by altering the frequency at which the reactors are fed. If the intervals are longer, more biogas is produced, according to the researchers’ paper in the Applied and Environmental Microbiology journal. Biogas production has long been a valuable technology, as the constant feed of organic raw materials such as energy crops, manure, sewage sludge, catch crops and plant residues helps produce energy around the clock. The ability to produce energy at a constant rate is a clear advantage over other renewable energy sources such as wind or solar energy, which depend on the wind or sun for production. As a result of this ability, Germany currently has around 8,000 biogas plants installed, with a total electricity output of approximately 4,500 megawatts. Around seven percent of the electricity generated in Germany now comes from biomass. It is hoped that even more electricity will be produced from this source in the future. Scientists from the UFZ, the University of Aarhus (Denmark) and the DBFZ succeeded in increasing the production of methane, the most valuable component of biogas, by up to 14 percent… Read More here

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18 February 2016, Energy Post, Biofuels are back on the EU agenda. Biofuels are returning to the political agenda in Europe as EU policymakers start to shape a strategy for reducing greenhouse gas emissions from transport after 2020. Biofuels producers continue to argue that they are an essential part of the solution, even as the low oil price puts an end to several cutting-edge projects, the European Commission prepares to publish a new report about indirect land-use change (ILUC) and some stakeholders urge a full focus on electrification. Sonja van Renssen investigates. “Are we competitive? Certainly not in the short term, but the long term is what matters,” said Artur Auernhammer, a Member of the German Parliament and Chairman of the German Bioenergy Association (BBE) in his opening speech at a “Fuels of the Future” conference in Berlin, Germany, on 18 January. “Certified sustainable biofuels from Europe must be a key element in the European decarbonisation strategy both at present and beyond 2020.” Dr Veit Steinle from the German Federal Ministry of Transport and Digital Infrastructure concurred: “If the Energiewende is to be implemented properly in Germany, we need an energy transition in transport. Of course we’re putting money on biofuels in this regard.” “If we look at the current development of oil prices, it is very certain that at least in the short to medium term, the regulatory framework will be very, very important for the perspectives of biofuels.” – Bernd Kuepker, European Commission It is equally obvious for EU biofuels producers that they are part of the solution. But others have moved on. Jos Dings, Executive Director of Brussels-based NGO Transport and Environment, said in an interview: “The big change since the [EU’s] first climate and energy package [in 2008] is the rise of electric vehicles. In contrast, we’ve seen very little progress in liquid fuels.” Still, Gernot Klepper, Chairman of the Board for ISCC System, which certifies bio-based feedstocks and renewables, reminded delegates in Berlin that biofuels make up about a fifth of final energy consumption in transport in 2050, in the International Panel on Climate Change (IPCC)’s two degrees scenario. Read More here

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