Using ethanol can reduce the global consumption of fossil fuels. But, commercially, ethanol in the U.S. is produced from corn and not enough is grown to make a significant impact on U.S. fuel needs. Anne Trafton at MIT describes research that has engineered yeast to break down straw and woody plant material to create ethanol as efficiently as itâs done from corn. High yields of ethanol were extracted from five different types of cellulosic … [Read more...]
Where to start building Hydrogen pipelines? Near industrial hubs for steel, ammonia, and plastics
Converting gas pipelines to carry hydrogen is going to be expensive. We donât even know how much hydrogen weâll really need in 2050, given electrification â the cheaper and preferred option to replace fossil fuels â will always be the first option. But we do know that certain industries like steel, ammonia, and plastics will always need hydrogen as a feedstock. Writing for WEF, Kevin Tu, Matthias Deutsch and Gniewomir Flis at Agora Energiewende … [Read more...]
Aviation and Shipping emissions: will Biden take on the challenge?
William Todts at Transport & Environment is very worried about the Biden administrationâs approach to aviation and shipping emissions. The signals are that the U.S. wants to work through the International Civil Aviation Organization (ICAO) and the International Maritime Organization (IMO). But they have neither the ability nor the means to spur technological breakthroughs. That matters, because itâs only the use of alternative fuels that can … [Read more...]
Bioenergy is the undervalued pillar of the clean energy transition
Bioenergy is already the worldâs largest source of renewable energy, responsible for 70% of the supply (and around 10% of total primary energy). Burning organic matter goes back to the invention of fire and is still commonplace around the globe. Yet it gets hardly any of the attention and policy support thatâs given to other clean energy technologies like solar, wind and now hydrogen. Bioenergy can and should play an even greater role, explain … [Read more...]
Biofuels vs Hydrogen: which can fuel aviation, shipping, trucks?
The positive signals coming from EV sales and charge points contrast with the lack of progress in finding alternative fuels for aviation, shipping and trucks. Cornelius Claeys runs through the prospects for biofuels and hydrogen to power long-haul transport. Biofuels are already used as a substitute for fossil fuels, and EV uptake will usefully free them for fuelling heavy transport. But as decarbonisation ambitions rise the pressure on scarce … [Read more...]
IEA: Without accelerating clean energy innovations we cannot hit net zero by 2050
The impressive rise of renewables and energy efficiency, alone, will not be sufficient to meet the worldâs 2050 emissions goal, says the IEA in its flagship Clean Energy Innovation report. New technologies, taken all the way through to widespread adoption by the market, must become an essential part of the net zero pathway. The stark warning is that existing policies to decarbonise shipping, trucks, aviation and heavy industry are not nearly … [Read more...]
An EU Hydrogen strategy: from industry feedstock to energy vector
The bravest recovery strategies will invest robustly in new yet-to-take-off clean energy technologies. If you are going to have to spend hundreds of billions to revive your economy isnât it better to replace the old with the new rather than prop up what youâll have to abandon soon anyway? In anticipation of that happening, new technologies are lining up. Here, CĂ©dric Philibert at the IFRI Centre for Energy & Climate summarises their detailed … [Read more...]
IRENAâs Global Renewables Outlook and how Europe can lead the way
If the coronavirus slump has knocked everything off track IRENAâs first ever Global Renewables Outlook is a timely reminder of what that track should look like. It can help policymakers design stimuli packages that will get us back onto it, and even accelerate the transition. IRENAâs Gayathri Prakash, Nicholas Wagner and Ricardo Gorini run through the comprehensive reportâs main recommendations. Annual investment, shares and GW targets to 2030 … [Read more...]
Defining green investments, ending greenwash: the EUâs new Taxonomy Regulation
When the EU Commissionâs new Taxonomy Regulation is approved, expected in March, it will provide the legal framework to define what is a truly âgreenâ investment. As Luca Bonaccorsi at Transport & Environment explains, right now asset managers and national authorities are free to define what is green, allowing some to greenwash investments in things like oil and pesticides. The Taxonomy's purpose is to reduce ambiguity and therefore increase … [Read more...]
Donât wait for international agreements. Sector-wide action can accelerate the Transition
Decemberâs COP25 in Madrid showed how difficult it is proving to get agreement between nations on how to ramp up the deep decarbonisation the world needs. David Victor at the University of California, San Diego, writing for Rocky Mountain Institute, accepts that international consensus is never going to be easy. Instead, he recommends that individual sectors take control of their destiny. His co-authored report âAccelerating The Low Carbon … [Read more...]
Biofuels: slump in investment and innovations must be reversed
IRENA is predicting the future of liquid biofuels by monitoring the number and technology-type of patents. Itâs not looking good. The first thing to note is that, after a promising rise, the total number of patents has slid from over 6,000 in 2011 to around 2,500 in 2017. Thatâs reflected in the dramatic fall in global biofuel investments, from $27bn in 2007 to $2bn in 2017. The likely main cause is a lack of stable regulation, say Alessandra … [Read more...]
Shipping: commercially viable zero emission deep sea vessels by 2030
Last year the International Maritime Organization, recognising the slow progress the sector had made, set ambitious targets to reduce shipping emissions by at least 50% by 2050 compared to 2008. Companies started lining up to face the challenge. But the shipping sector is very energy intensive. Bunker fuel costs can account for 24 - 41% of total shipping costs, so any clean fuel transition must be competitively priced. The fact that alternatives … [Read more...]
UKâs net-zero ambition: counting all emissions, not just in-country
The UKâs Committee on Climate Change (CCC) has advised its government to go zero-carbon by 2050. But, say Joe Blakey and Marc Hudson of the University of Manchester, counting all emissions means counting the carbon footprint of imports too. Including these (and excluding emissions from exports) the UKâs footprint is 70% higher than the figure used by the CCC. The same is likely true for all high income economies. And the cost of successful … [Read more...]
Sails make a comeback as shipping heads for complete decarbonisation by 2035
Last yearâs ITF report asserts that an almost complete decarbonisation of shipping could be achieved by 2035 using currently known technologies. Whilst LNG is gaining momentum, hydrogen, ammonia and biofuels could be more sustainable means of delivering much of the required reductions, complemented by a mix of electronic propulsion and wind assistance. The message, according to independent journalist Eric Marx, is âHold on. Thereâs a decade of … [Read more...]
Shipping: regulations facilitating switch to LNG
How do we solve shippingâs âchicken-and-eggâ dilemma: LNG producers wait for enough ships to run on LNG, while shipping companies wait for producers to increase their supply? The âvirtuous circleâ of steady growth in LNG shipping in the North Sea/Baltic Sea area can provide an important case study for the rest of the world, according to a reportby the Oxford Institute for Energy Studies. It concludes that LNG will grow as a shipping fuel … [Read more...]
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