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 it’s done from corn. High yields of ethanol were extracted from five different types of cellulosic … [Read more...]
Wind, Solar: continuing cost declines will help meet rising renewables targets
The EC’s “Fit for 55” proposals include the raising of the EU’s 2030 target for total energy produced from renewable sources to 40%. Much of the rest of the world will likely raise its targets at some point too. Continuing to cut the cost of renewable energy generation will be essential to make that happen, and take pressure off all the other associated costs of supporting its integration into the energy system. Michael Taylor at IRENA summarises … [Read more...]
Biden’s major report on critical minerals supply: domestic mining + processing, innovation, EVs, global allies + more
In June, The White House issued its 250-page report on the global critical minerals supply chain, and how the U.S. can ensure continued supply as well as build up its own mining and manufacturing base. It is the fullest picture so far of how the U.S. is evaluating mineral access and supply chain resilience, says Reed Blakemore at the Atlantic Council Global Energy Center. Here he reviews the report, in particular the section on energy which … [Read more...]
U.S. can’t hit net-zero power target by 2035 without Advanced Nuclear
President Biden’s target of net-zero power generation by 2035 will be extremely challenging, if not impossible, argues Charles Merlin writing for IFRI. He says the best chance of achieving it is through advanced nuclear reactors, though the 2030+ switch-on dates of the new technology still won’t guarantee meeting Biden’s timescales. Why should the U.S. drive for advanced nuclear? Because of the known limitations of the other technologies. Wind … [Read more...]
How to grow grid-scale U.S. Battery capacity to 125GW (or even 680GW) by 2050
Grid-Scale U.S. storage capacity could reach 125GW by 2050, or even as much as 680GW, according to research from NREL. Almost all today, under 25GW, comes from pumped hydro which has probably reached its limit so the future is batteries. Growth depends on commercial viability, so the research led by NREL has modelled what services storage can supply, the main three being firm capacity, energy time-shifting and operating reserves. The sets of … [Read more...]
Financial incentives for Grid Modernisation: the problem with guaranteed returns on investment
Grid modernisation is going to be very expensive. What’s the best way to pay for it? The financial incentives governments put in place now will determine what investments get made, how cost-effectively it’s done, and who ultimately pays. Meredith Fowlie at UC Berkeley’s Energy Institute at Haas explains that a common method is for a government to give some sort of guaranteed return on investment for the new asset. But it’s far from ideal. … [Read more...]
U.S. DoE: National Roadmap for Grid-Interactive Energy-Efficient Buildings
Buildings account for more than 70% of U.S. electricity use and one-third of economy-wide CO2 emissions. Andrew Satchwell at the Lawrence Berkeley National Laboratory presents the U.S. Department of Energy’s comprehensive plan, “A National Roadmap for Grid-Interactive Efficient Buildings”, that could deliver up to $200bn in savings to the U.S. power system and cut CO2 emissions by 80m tons per year by 2030 (6% of total power sector emissions). … [Read more...]
Finland starts excavation of world’s first Deep Geologic Nuclear Waste Repository
Finland’s policy is to dispose of, within its borders, spent nuclear fuel rather than reprocess it. Excavation of a deep geological repository - for final disposal - at Olkiluoto began in May and is a world first. Not even the U.S., with its waste from over 130 nuclear reactors built since the 1950s, has committed to one. James Conca looks at Finland’s history of nuclear waste disposal, how it got to this decision, and the disposal method. The … [Read more...]
What patents tell us: which countries, what sectors, are the clean energy innovators?
Today’s solutions cannot give us a successful transition on their own. That’s why the innovations coming down the pipeline are so important. One way to measure what, and who, is innovating is to look at the number of patents being filed for low carbon energy (LCE), explains Sean Fleming writing for the World Economic Forum. He summarises the latest report from the European Patent Office and the IEA, “Patents and the energy transition: Global … [Read more...]
How Clean Energy Standards have driven clean electrification in the U.S.
John Rogers at the Union of Concerned Scientists presents evidence from the U.S. of the effectiveness of using standards to drive clean electrification. In principle it’s simple: set a legal requirement for the percentage of clean electricity. How it’s done depends on the efforts of all the actors affected. 30 states are using different versions of Clean Energy Standards (CES) – the first began in 1983 and more than half of them began before 2004 … [Read more...]
18 energy transition scenarios to watch: where they agree and disagree
A wide range of regions, nations and respected organisations have created net-zero strategies and pathways, but on what do they agree and disagree? Dolf Gielen, Asami Miketa, Ricardo Gorini and Pablo Carvajal at IRENA have done a meta-analysis of 18 recent energy transition scenarios to find out. There is consensus over the main strategies: renewable power generation, and the direct and indirect electrification of end-use sectors – these account … [Read more...]
Sustainably harvested Forest Biomass can help replace coal and gas
Burning sustainably harvested wood pellets emits far less carbon than burning coal or gas. That’s the main reason why it should be used in the global energy transition, argues Jennifer Jenkins at Enviva. Coal is declining, but not fast enough. Gas consumption is rising. Forest biomass can more easily be swapped in than wind and solar to provide dispatchable power. But it must be done sustainably. Referencing her white paper, Jenkins sets out the … [Read more...]
U.S. EV transition means major shake-up of car makers, hubs, jobs, dealerships, gas stations
General Motors (GM), in the past considered the measure of U.S. economic health, is retrenching to become an EV leader, writes Paddy Ryan at the Atlantic Council. CEO Mary Barra even wants people to think of GM as a tech company. Loss-making divisions have been shed and tech investments made. Rivals - from Tesla to pure start-ups - are forcing all car makers to face up to the electric future. But the disruption will go much further, explains … [Read more...]
How to ramp up Green Mortgages for climate-friendly house improvements
Green mortgages are used to finance climate-friendly house improvements. In the U.S. they already exist, but need to be made far more accessible and marketed widely. Greg Hopkins at RMI cites their report “Build Back Better Homes: How to Unlock America’s Single-Family Green Mortgage Market” to explain that the financial markets are looking increasingly favourably at lending that is certified as ESG (environmental, social, and governance). … [Read more...]
What is your nation’s “deforestation footprint”? When imports cut down trees somewhere else
Behaviour change is now inextricably linked to the transition and must be part of the world’s emissions reduction strategy, and there are many different types of relevant behaviour and ways to measure the impacts. One is to look at deforestation, caused by chopping down trees to meet our consumer needs. To grasp whose behaviour has to change we need to appreciate to what extent deforestation in places like Brazil, Canada, Liberia, Vietnam etc., … [Read more...]
- « Previous Page
- 1
- …
- 9
- 10
- 11
- 12
- 13
- …
- 18
- Next Page »