The IEA report “Batteries and Secure Energy Transitions” looks at the impressive global progress, future projections, and risks for batteries across all applications. 2023 saw deployment in the power sector more than double. Strong growth occurred for utility-scale batteries, behind-the-meter, mini-grids, solar home systems, and EVs. Lithium-ion batteries dominate overwhelmingly due to continued cost reductions and performance improvements. And … [Read more…]
Analysis of Clean Technology Manufacturing around the world: solar PV, wind, batteries, electrolysers, heat pumps
For every nation, clean technology manufacturing can bring economic security, employment, and resilience to clean energy transitions, says the IEA. The sector is now so significant that it’s also impacting overall GDP performance: in 2023, clean technology manufacturing alone accounted for around 4% of global GDP growth and nearly 10% of global investment growth. Here, the IEA summarises its first-of-its-kind “Energy Technology Perspectives … [Read more…]
The benefits of Vertical-Axis Wind Turbines: omnidirectional, close-packed, easier to maintain + more
Most wind turbines are “horizontal axis,” pointing into the direction of the wind. “Vertical axis” turbines can capture wind energy from any direction, but current designs are less efficient and so get little attention and investment. Andrea Montanari at ECECP looks at innovative companies around the world that are trying to leverage the other advantages they have over the dominant horizontal versions. They are more stable (lower centre of … [Read more…]
What China, Germany, and Texas tell us about Capacity Adequacy
As intermittent renewables penetrate further into the grid mix, reliable firm power generation is needed for whenever there is a shortfall. But back-up power, by its nature, has unreliable utilisation rates. And up-front costs for new plants are high, be they gas-fired plants, coal, nuclear, or large-scale storage. That makes future profitability uncertain, and private investors nervous. Hence the need for “capacity mechanisms” that guarantee … [Read more…]
Iron-air batteries: long-duration grid storage targets 1/10th the cost of lithium-ion
Wind and solar need cheap, long-duration storage to even out its inherent weather-determined intermittency. Deborah Halber, writing for MIT News, describes the development of iron-air batteries. Iron is cheap and available worldwide. Storage duration is multi-day. They are much heavier and take up more space than lithium-ion batteries, but that doesn’t matter for immobile grid storage. The target price tag of $20/kWh (one-tenth the cost of … [Read more…]
Explainer: The EU’s Green Deal Industrial Plan
Here, the Florence School of Regulation (FSR) provides a summary of the Green Deal Industrial Plan. It’s broken up into: What is the Green Deal Industrial Plan? What are critical raw materials and why do they matter? Where is the EU currently standing on critical raw materials? What is the EU doing about critical raw materials? Where is the EU currently standing on clean tech? How is the EU attempting to boost its domestic clean tech sector? Can … [Read more…]
Study: will sight of a Wind Turbine reduce your property prices?
Onshore wind turbines have a permitting problem in the U.S. and Europe. One main complaint from homeowners is that they believe the sight of a turbine will reduce their property value. Maximilian Auffhammer at the Energy Institute at Haas describes his co-authored published study that tests this assumption. The study looks at sale prices of over 300m homes in the U.S. within 10km of a turbine, sold between 1990 and before COVID hit. The clever … [Read more…]
Who is winning the Clean Energy race between China, Europe, and the US?
“X-Change: The Race to the Top” is the fourth report of an RMI series that reviews the cleantech competition between China, Europe, and the US. Kingsmill Bond, Sam Butler-Sloss and Daan Walter at RMI summarise the findings of the latest report, along with six charts, which focuses on four areas: clean technology supply chains, solar and wind deployment, EV sales, and electrification. Solar and wind deployment is still a close contest. But China … [Read more…]
Europe’s cross-border Interconnectors: how JAO auctions optimise energy flows, prices
Interconnectors allow for cross-border flows of energy between two markets that would otherwise not be connected. Through an economic convergence between supply and demand, the cheapest marginal producer located anywhere in these two markets should be able to set market prices. As Jean-Baptiste Vaujour at the Emlyon Business School explains, the central question is to find an optimal allocation of the scarce interconnection capacity between the … [Read more…]
New Offshore Wind projects: is permitting being slowed by evidence from “grey literature”?
Offshore wind is the new frontier of clean energy generation. The permitting process depends on policymakers’ evaluation of the impact assessment evidence. As Claire Szostek at the Plymouth Marine Laboratory explains, that evidence has two sources: primary and “grey” literature. “Primary literature” comes from structured peer-reviewed scientific journals. “Grey literature” includes all other types of reports and evidence published freely. The … [Read more…]
Tomorrow’s deep water Floating Wind Turbines: the six main design categories explained
The new frontier of offshore wind power is floating wind turbines. That’s because they can be installed in deep water where wind speeds are consistently higher. The new designs have the floating turbines, that bob and sway with the waves and wind, stabilised with ballast or anchored with chains to the seafloor. Emma Edwards at Oxford University looks at the six major categories of design: Spar, Barge, Tension-leg platform, Semi-submersible, … [Read more…]
Financing Europe’s cross-border Interconnectors to deliver energy security, lower prices: a look at incentives and policies
The EU and its Member States are building out interconnectors to improve security of supply and affordability of electricity through the physical and economic linking of national energy markets into a single, synchronised European market. But each interconnector is expensive, complex and therefore risky. They can span long distances or natural obstacles such as mountains or seas. Significant network planning and adaptation is needed to account … [Read more…]
ReDREAM pilot: mobile app for real-time green energy availability, prices, to control your usage
We already have the technology to allow households to monitor and control their energy usage so they can run individual appliances when the energy is cheapest and greenest. It just needs to be tested and then deployed at scale. Luca Arfini, writing for ESCI, describes the EU-funded ReDREAM project where over 700 people in four countries have had the monitoring installed in their homes, and been given the mobile app to control their usage. … [Read more…]
Study: universities worldwide are still producing far more graduates for fossil fuels than for clean energy
Universities worldwide still produce more workers for fossil fuels than for renewable energy industries. Roman Vakulchuk and Indra Overland at the Norwegian Institute of International Affairs summarise their new study on the energy transition in global higher education, published by the Energy Research & Social Science journal. The study is based on a review of 18,400 universities in 196 countries. 68% of the world’s energy educational … [Read more…]
Study: Marine Carbon Removal, and the Offshore Wind and Wave Energy to power it
Ocean-based carbon dioxide removal makes a lot of sense. The oceans are already carbon sinks that absorb about 30% of global carbon emissions. And the concentration of CO2 is higher in water than in air. Caitlin McDermott-Murphy at NREL looks at a new study of the technologies under development, and the opportunities for offshore wind and wave energy to power it. There are nature-based solutions like vast seaweed or algae farms. There are also … [Read more…]
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