Measuring the performance of an energy technology is key to informing policies and pathways as the transition scales up. But are we measuring all the right things and getting accurate answers? If we’re not, those policies and pathways could end up wrong. Paul Sapin at Imperial College, UK, explains how they are creating a library of data-rich models to greatly improve predictive power for all energy technologies, both existing and emerging. He … [Read more...]
World Energy Outlook 2020: IEA responds to some difficult questions
The IEA has issued an FAQ to try to answer some persistent questions and criticisms about their annual World Energy Outlooks (WEO). How come the growth of solar and wind have been consistently underestimated? When is “peak oil” going to happen? Will the IEA’s Sustainable Development Scenario limit the global temperature rise to 1.5 °C this century? Is it realistic? Why has a “Net Zero Emissions by 2050” (NZE2050) pathway been added this year? Do … [Read more...]
How ready is the switchgear industry to abandon SF₆, the worst greenhouse gas?
Are firms in the switchgear industry - power utilities, industrial sites, and related service and infrastructure sectors - happy to switch from using the gas SF6 and use alternatives that are less harmful to the climate? This is the question Marie-Charlotte Guetlein and Carine Sebi at the Grenoble École de Management asked over 400 switchgear customers to find out what’s needed to make the change. SF6 has 23,500 times the impact of CO2 and an … [Read more...]
Decarbonising end-use sectors: buildings, transport, industry. Which strategies are best?
The rapid pace of change in the energy sector is a positive sign for the transition. But the disruption it causes creates another big problem. It makes it harder to predict what will happen next. That makes strategies and pathways harder to design, and increases the risk of stranded assets. To try to come to grips with that future, Sean Ratka, Paul Durrant and Francisco Boshell summarise the findings of IRENA's 4-day “Innovation Week” held last … [Read more...]
U.S. Nuclear: change the laws that constrain foreign and domestic investment
Today, Russia and China dominate global nuclear exports and new additions while the U.S. experiences budget overruns and cancellations. Once at the forefront, the U.S. should regain its leadership of nuclear power, argue Matt Bowen, Jennifer Gordon and Jackie Kempfer at the Atlantic Council. To recover its position it first needs to change the laws and policies that constrain its ability to cooperate with allies on nuclear matters, invest in … [Read more...]
Research into solid electrolytes to improve performance of lithium-ion batteries
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...]
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