If the limits of lithium-ion battery performance are indeed being reached, one way forward is to extend those limits with new materials. Mark Shwartz at Stanford University describes their research into solid electrolytes, which promise to be more energy dense than the standard liquid form. To identify the best compounds, artificial intelligence and machine learning were used rather than the usual and much lengthier trial-and-error experimental … [Read more...]
Why promote Rooftop Solar when the Grid is so much cheaper?
Is rooftop solar in the U.S. getting more support than it deserves? One main argument from its advocates is that it will cut grid transmission and distribution costs that total hundreds of millions. Severin Borenstein at the Energy Institute at Haas crunches some numbers to try to uncover the true “avoided costs”. He shows that any savings won’t come even close to making up for the higher cost of rooftop electricity. It’s no match for the grid’s … [Read more...]
Renewables shares outperformed fossil fuels over 10 years. Have investors noticed?
Shares in listed renewables firms are outperforming their fossil fuel equivalents, both in terms of returns and volatility. But although investment is rising, they’re still not getting enough to meet our 2050 targets, says the IEA. Why? In this article summarising the first of a series of reports they look at the 5 and 10 year record of the two verticals. In all the three territories analysed – the U.S., the U.K., and Germany/France - renewables … [Read more...]
China’s new net zero emissions target for 2060: why now, and how?
China’s promise of peak emissions before 2030 and net zero by 2060 is a major and welcome step for the economic (and fossil fuel) powerhouse. But the rest of the world doesn’t need to make concessions to get China to stick to the new target, says John Seaman at the IFRI Centre for Energy & Climate. That’s because an energy transition is in China’s interests. It wants and needs to be at the forefront of new energy technologies to secure future … [Read more...]
Will Germany’s “EEG” energy law amendments make renewable targets harder to meet?
Germany’s Renewable Energy Sources Act (Erneuerbare-Energien-Gesetz/EEG), now 20 years old, is under discussion as a new amendment is supposed to come into force on January 1st 2021. Simon Göss at Energy Brainpool takes a detailed look at the highlights, including the new and higher targets, the financial role of municipalities, clean electricity subsidies, and solar and wind tender volumes. He explains there has been serious criticism of the … [Read more...]
Floating Solar on existing Hydro reservoirs: potential for 10,600 TWh/year
The idea is simple. Float solar panels on the reservoirs of hydroelectric dams. The new solar can piggy back on the existing grid connections. They complement each other by being strong when the other is weak: solar for the dry season, hydro for the wet. The hydro can provide pumped storage for the excess solar. Finally, the reservoir is readily available space. A team at the U.S.'s National Renewable Energy Laboratory have calculated the … [Read more...]
Changes to national targets and forestry mean EC’s 55% plan is weaker than it looks
The EC’s plan to reduce the bloc’s emissions by 55% by 2030 compared to 1990 levels, instead of the previously agreed 40%, is very welcome but its implementation plan is flawed, says William Todts at Transport & Environment. The EU Emissions Trading System (EU ETS) won’t be enough on its own. So the plan allows nations to include “managing” forests and “tree plantations”, a big change because forests were not part of previous emissions … [Read more...]
Europe’s 55% emissions cut by 2030: proposed target means even faster coal exit
The EC is proposing a target emissions reduction of 55% by 2030 compared to 1990 levels, instead of the previously agreed 40% (which the EU is on course to surpass). The main tool for achieving it will be the EU Emissions Trading System (ETS). Prices for allowances will rise, making coal increasingly uncompetitive. Sören Amelang, Kerstine Appunn and Julian Wettengel at CLEW talked to a number of experts who say the new target implies a near total … [Read more...]
Tesla’s BEVs vs. Toyota’s hybrids: the battle for the future of low emission cars
Which car firm will dominate the future? Tesla and its BEVs or Toyota with its hybrids? Schalk Cloete looks at the cost reductions coming down the line. He says that the hybrids have many more improvements on the way, whereas in terms of performance and efficiency the BEVs are already reaching their peak. Though further and considerable progress in battery technology is coming, it will benefit both. For city driving both will rely on battery … [Read more...]
Net Zero by 2050 technically and economically achievable, says Energy Transitions Commission report
Making Mission Possible, the latest report by the Energy Transitions Commission, describes a net-zero world by mid-century as technically and economically possible. The solutions are already available or close to being brought to market. What is still missing is the will to embrace, rapidly and at scale, the inevitable disruption that will ultimately deliver net-zero emissions, lower air pollution, cheaper energy bills, create new jobs and raise … [Read more...]
MGA blocks can substitute for coal, preserving plants, grid connectivity and jobs
Rather than dismantle coal plants, why not create a clean fuel that can be used in the same plants, utilising the steam turbines, existing connections to the grid, and preserve jobs at the plant. MGA (miscibility gap alloy) is that fuel, say Erich Kisi and Alexander Post at the University of Newcastle, Australia who are behind the development of these blocks of material, 20cm x 20cm x 16cm, made of blended metals. They are heated up – using … [Read more...]
Gas oversupply and clean energy’s rise: now is the time to fast-track gas market reforms
Traditional monopolistic and oligopolistic gas markets artificially keep gas prices high, work against competition and efficiency, and have no place in the modern world, say Jean-Baptiste Dubreuil, Gergely Molnar and Songho Jeon at the IEA. They calculate that gas market reforms in the EU, begun in the mid 1990s, saved the bloc $15bn in 2019. But it typically takes 20 years for such a market to be properly established. The authors explain that … [Read more...]
ANEEL: Thorium-based reactor fuel could revive Nuclear’s fortunes
A public-private consortium backed by the U.S. DoE is developing a new nuclear fuel – a mix of thorium and uranium – that looks like a major advance on the fuels currently in use, says Jim Conca. Called “Advanced Nuclear Energy for Enriched Life” (ANEEL), it has a very high fuel burn-up rate (55,000 MWd/T) compared to the usual uranium (7,000 MWd/T). That high burn-up reduces the waste by over 80%. Less spent fuel means less refuelling, less … [Read more...]
Sweden’s new “prosumers”: electricity generation at the city, village and residential level
54% of Sweden’s power already comes from renewables – the target is 100% by 2040 - and more and more is being generated locally on a small distributed scale, says Harry Kretchmer writing for the World Economic Forum. ‘District Heating’ plants are today using excess heat to warm over 75% of Swedish homes. Residential generation is happening too, creating “prosumers” who both produce and consume. In Ludivika, 1970s flats have been retrofitted with … [Read more...]
The Energy Charter Treaty needs updating, but remains a valuable tool for the transition
Last Thursday we published this critique of the Energy Charter Treaty (ECT). Created in the 1990s, the ECT was designed to protect cross-border energy investments from political risk. Critics now say it is being used to protect fossil fuel investments in a world committed to phasing them out. Today, Andrei Belyi of energy consulting firm Balesene OU and Adjunct Professor in Energy Law and Policy at the University of Eastern Finland, who was named … [Read more...]
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