Producing electricity from biomass is one of the most controversial and least understood forms of renewable energy. In this three part series, we first explored myths and facts about biopower. In this second installment we’ll try to make sense of a seemingly simple question – is biopower good for cutting our carbon emissions? It is anything but simple. This series first appeared on the Energy Transition blog, at energytransition.org. … [Read more...]
Myths and facts about biopower (part 1 of 3)
While wind and solar are widely popular, and nuclear and energy storage hotly debated, much less is said about the role bioenergy could play in the transition to a low-carbon society. In a three-part article, Bentham Paulos argues that bioenergy has an important role to play in the green future and exposes some of the myths around it. This article originally appeared in the Energy Transition blog. … [Read more...]
Bioenergy increases emissions in Europe
The way the EU Emission Trading (ETS) has been set up, means that replacement of coal or gas with biomass will lead to higher greenhouse gas emissions, writes Rauli Partanen, freelance author and analyst. And in combination with the renewable energy targets all EU member states have, this is exactly what our policies encourage us to do. … [Read more...]
Separating fact from fiction in newest U.S. federal ethanol study
The latest ethanol study from the U.S. Department of Agriculture mixes facts with fictions, writes John DeCicco of the University of Michigan. The study contains fundamental errors that undermine its claims that the use of corn ethanol reduces greenhouse gas emissions. … [Read more...]
EU energy package: What it means for coal, renewables and efficiency
The literature on EU energy regulations got longer by about a thousand pages [on 30 November], as the European Commission put forward its vision for achieving a “clean energy transition”, writes Sophie Yeo for Carbon Brief. The vast collection of documents — including revisions to directives, impact assessments, enquiries and new regulations — will determine the future of energy in the EU up to 2030. It touches upon subjects including coal … [Read more...]
Biofuels turn out to be a climate mistake
Biofuels are usually regarded as inherently carbon-neutral, but once all emissions associated with growing feedstock crops and manufacturing biofuel are factored in, they actually increase CO2 emissions rather than reducing them, writes John DeCicco of the University of Michigan. According to DeCicco, biofuels are actually more harmful to the climate than gasoline. Courtesy of The Conversation. … [Read more...]
Europe’s renewable transport targets need biofuels, they can’t be met with EVs alone
The decarbonisation of the transport sector presents a huge challenge for Europe, writes Paul Deane of the Environmental Research Institute in University College Cork, Ireland. Many people believe electric vehicles (EVs) are the answer, but according to Deane biofuels will need to deliver most of the targets for the time being. “EVs will have their day but it may be further down the road than we hoped.” … [Read more...]
IEA sees “major shift” – but not major enough
“A major shift in investment towards low-carbon sources of power generation is underway”, according to a first-ever detailed analysis of investment across the global energy system from the International Energy Agency (IEA). Yet, in non-OECD countries, “investment in conventional generation remains strong”, with over 75 GW of coal-fired power plants starting operation in 2015 in “developing Asia” – “as much as all renewable capacity additions in … [Read more...]
A reality check on renewable energy potential
On a global level, the potential for renewable energy is more than sufficient, writes researcher Schalk Cloete. However, on a regional level, this is not the case, especially in developing Asia and Africa. Renewable energy technology forcing in these regions can have serious socio-economic consequences. … [Read more...]
Energy crops have been a major flop with farmers – here’s why
In only a few years, biomass has become a major UK power source, supplying 3% of the total electricity supply. However, despite government incentives, UK farmers are largely unwilling to grow the feedstock for the biomass plants. Most of it has to be imported. Charles Warren, Senior Lecturer Geography and Sustainable Development at the University of St. Andrews, tried to find out why – and came to some very instructive conclusions. Courtesy The … [Read more...]
Greener in Europe? Four reasons the EU can’t be trusted on the environment
Those in favour of Britain’s continued membership of the European Union – although strangely not the UK government’s official campaign to remain in – are increasingly highlighting the contribution Brussels has made to protecting the natural environment. There is some justification for this, writes Professor Steffen Böhm of the University of Exeter, but in several key areas the influence of the EU on UK's environmental policy has been negative … [Read more...]
Can we save the algae biofuel industry?
Over the last decade or so, energy companies, including the likes of Shell and ExxonMobil, have invested large amounts of money in algal biofuels, only to find that the economics didn’t make sense, writes Christian Ridley, Research Associate in Plant Biotechnology at the University of Cambridge. However, according to Ridley, there still is a way forward for the industry, if the production of biodiesel from algae can be combined with production of … [Read more...]
Why EU renewable energy figures are misleading: Europe requires 150% renewable energy to become fossil-free
The EU is confident it will reach its target of 20% renewable energy by 2020. But according to Martien Visser, professor at the Hanze University of Applied Sciences in Groningen (The Netherlands), this 20% is in reality more like 14%. This is because a large part of our energy consumption is simply ignored in the calculations for renewable energy. “Even with 100% renewables, we would still need a lot of fossil fuels”, Visser notes. … [Read more...]
How much can the next president influence the US energy system?
There have been dramatic changes in the U.S. energy system under our current president – a big drop in the use of coal, a boom in domestic oil and gas development from fracking, and the rapid spread of renewable energy. But in terms of influencing energy technology deployment, the next president will have a lot less influence than you might expect, writes Carey King, Research Scientist at the University of Texas. … [Read more...]
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 … [Read more...]
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