The rapid expansion of electric power across the world is putting a strain on battery production. The standard lithium-ion battery depends on minerals and metals in limited supply, so alternatives are needed urgently. Mahdokht Shaibani at Monash University describes the work of her team on developing lithium-sulphur batteries. There are many advantages, not least the abundance of sulphur, the 16th most common element on Earth. Added to that, … [Read more...]
Distributed Solar: rooftop residential, commercial systems keep getting cheaper
In the U.S., PV module efficiency (median values) rose from 12.7% in 2002 to 18.4% in 2018, much of it in the last decade and a full percentage-point increase in the last year alone. The best modules are even more efficient, says John Rogers at the Union of Concerned Scientists. Improvements have come from manufacturing processes and cell architectures, and the increasing share of more-efficient mono-crystalline technologies: up from 40% in 2016 … [Read more...]
UK rail: where are the electric-diesel hybrids, hydrogen, battery trains?
Cars and planes get much more attention than trains when it comes to emissions. That makes sense when, in the UK, transport accounts for 26% of all carbon emissions but only 1% of this comes from trains. Also, trains are already relatively emission-low: they release 0.046kg of CO₂/km/passenger while a diesel car is more than double that. Marcus Mayers and David Bamford at Manchester Metropolitan University explain that the crucial difference is … [Read more...]
Electro-mobility planning, pricing, smart-charging: “Pentalateral Region” can lead Europe
At the end of October, Ministers and Director-Generals of Energy and Mobility from the Pentalateral Region (Belgium, the Netherlands, Luxembourg, France and Germany), CEOs and experts came together to understand how electro-mobility can accelerate the energy transition. Reducing vehicle emissions is one thing, but a vast number of “batteries on wheels” can also enable rapid grid expansion. IRENA were one of the experts, and their analysis says … [Read more...]
The 7 battery technologies that can be cost competitive by 2030 for EVs to grids
Rapid performance improvements, falling prices and massive investment is accelerating us towards a time when batteries undercut fossil fuels for storage and despatch, right across the board, according to a report by Rocky Mountain Institute. The authors, Charlie Bloch, James Newcomb, Samhita Shiledar and Madeline Tyson have made forecasts for 7 battery technologies: the current leader Li-ion as well as Li-Metal, Li-Sulphur, Zinc, High … [Read more...]
An independent Global Energy Forecast to 2050 (part 2 of 5): wind and solar
Schalk Cloete is creating his own 5-part independent Global Energy Forecast to 2050, to compare with the next IEA World Energy Outlook, due in November. Many of his assumptions are different from the big institutions, not least that technology-neutrality will be widely adopted as the best policy, as carbon budgets are exhausted around 2030. There are other big differences too. He starts with wind and solar, two technologies that the IEA and … [Read more...]
Can Vanadium Flow Batteries beat Li-ion for utility-scale storage?
It’s taken 40 years for lithium-ion battery technology to evolve into its current state, powering everything from the smallest electronic devices to Tesla’s 100MW battery farm in southern Australia. But utility-scale Li-ion batteries are rare. 99% of grid storage today is pumped hydro, a solution that will always be limited by geographical and environmental constraints. For utility-scale chemical batteries to take off they need a new technology, … [Read more...]
Why coordinated Dutch-German climate action is critical for Europe
Both the Netherlands and Germany are about to propose major new national climate measures. If the proposals become law, they will enforce some of the most stringent national targets for GHG reductions in the world. It’s why, on 22 August, Dutch Prime Minister Mark Rutte will host a meeting with German Chancellor Angela Merkel and her ‘climate cabinet’. Coordinated Dutch-German climate action can make these neighbouring countries role models for … [Read more...]
Utility-scale batteries can undercut peaking gas and coal
A report by IEEFA looks at trends in the U.S. to install utility scale batteries. The report’s author, Dennis Wamsted, gives examples of how it is replacing the peaking and seasonal generation being provided by gas and coal. Emissions aside, the numbers are starting to add up. In Hawaii the combination of solar generation and storage is expected to undercut the price for fossil fuel generation. In Texas, Vistra Energy’s batteries are soaking up … [Read more...]
Overbuild solar: it’s getting so cheap curtailment won’t matter
Avoiding curtailment made sense when solar generation was extremely expensive: don’t build solar beyond what you can store. However, that means solar must always wait for storage costs to decline and capacity grow. But with solar prices plummeting it can make economic sense to overbuild it, say Richard Perez, University at Albany, and Karl Rabago, Pace University. Oversized solar will deliver more energy in low light and reduce the need for … [Read more...]
The European Battery Alliance is moving up a gear
Europe needs batteries, primarily for clean mobility and grid stabilisation. But EU lithium-ion cell manufacturing is less than 3% of the global share, and mainly for high-end niche markets, not the automotive sector. If Europe doesn’t act fast, catching up with Asia will become impossible, writes Carole Mathieu of the IFRI’s Centre for Energy, reflecting the views of the European Battery Alliance (EBA). It’s a strategic imperative, given the … [Read more...]
Electric Cars: only big subsidies lift market share off the 1.5% floor
You only need to compare the US to Norway to see how the main driver for EV sales is coming from government subsidies. Total Norwegian EV incentives cut the cost of running a typical 60 kWh battery pack from over $200/kWh to negative $336/kWh. US incentives bring it down to negative $23/kWh. The consequences are clear: generous Norway sees EVs take 31% of the market share in cars. In the US it’s 1.4%. That makes EVs a luxury item in the US (like … [Read more...]
2009 to 2017: solar, wind costs plummet, hydro steady, nuclear up
Between 2009 and 2017 prices dropped 76% for solar panels and 34% for wind turbines. Hydro and nuclear struggle to cut costs; as mature technologies, most of the efficiencies have already been squeezed out already. Also, they are difficult to productise and scale; dams (definitely) and nuclear plants (somewhat) are one-offs. In contrast, solar panels and wind turbines are far easier to productise and then mass produce. It’s why wind overtook … [Read more...]
From rooftop solar to carbon divestment, California leads the transition
California doesn’t wait for Washington. As America’s most populous state by far, it is behaving like a separate nation when it comes to climate policies. Tim Buckley, Director of Energy Finance Studies at IEEFA Australasia, says it has become a global leader in renewable energy. Renewables provided 34% of its total energy needs in 2018, and the business community sees economic success in further progress. The author runs through the highlights, … [Read more...]
New “Gas for Climate” scenarios: can green gas and hydrogen save gas pipelines?
Gas has a key role to play in decarbonising the energy sector. Until a comprehensive clean energy network can accommodate variable renewables using storage, baseload power will be needed. Natural gas is a lower carbon option than coal, so there is a strong case for it to be the first-choice bridging fuel towards a net-zero energy economy. However, exactly how much gas, what type of gas and how existing infrastructure can store energy in the form … [Read more...]
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