Justin Daugherty at NREL describes research there on using generative AI to accelerate and improve the wind turbine blade design process. To keep up with the pace of change in the market (not just customer demands, but policy regulations and technological innovations), the current method uses simplified low-fidelity modelling because it’s quicker to turn around. But it is also less accurate. Researchers are exploring deep-learning models using … [Read more...]
The world needs 200,000 Offshore Wind turbines by 2050: mapping the locations, constraints
Hugo Putuhena, Fraser Sturt and Susan Gourvenec at the University of Southampton summarise the results of their methodology that determines where to locate the hundreds of thousands more offshore wind turbines the world needs to meet net-zero targets. The world may need as many as 200,000 offshore turbines by 2050, generating 2,000GW. At the end of 2022, 63GW had been installed worldwide, so that means 32 times current capacity. If the “power … [Read more...]
EU’s 40% domestic Cleantech ambition: same target for Wind (easy) and Solar (hard) doesn’t make sense
The proposed Net Zero Industry Act includes a target for the EU to manufacture domestically at least 40% of its cleantech deployment needs by 2030. That includes the key technologies of solar PV panels, wind turbines (onshore and offshore), EV batteries, heat pumps and hydrogen electrolysers. But it doesn’t make sense to have the same 40% target for all, explain Giovanni Sgaravatti, Simone Tagliapietra and Cecilia Trasi at Bruegel. The main … [Read more...]
“Exascale” computing algorithms can deliver new Wind Turbine designs and on-site power-maximising strategies
Advances in exascale computing algorithms and models for multiscale atmospheric flows are leading to new wind turbine designs and on-site power-maximising strategies previously not possible, explains Brooke Van Zandt at NREL. The models can contain and process two billion grid points, simulating the air flow around turbines in a large wind farm with unprecedented accuracy. Van Zandt describes how the new tools are being used to deal with highly … [Read more...]
Wind Turbines: how dependent is the EU on China?
Joseph Webster at the Atlantic Council’s Global Energy Center takes stock of the European wind sector’s dependence on China. Nobody wants geopolitics and a worsening relationship with Beijing to disrupt positive cooperation in the urgent energy transition. The news is mostly good: the dependence is low because the international trade in turbines is constrained by weight-to-value ratios, transportation costs, and local content requirements. In … [Read more...]
Critical Minerals: will there be enough to meet the 2050 net-zero emissions target?
If the production and processing of critical minerals cannot keep up with the accelerating adoption of batteries, EVs, wind turbines and solar PV technologies, the pace and success of the global energy system transformation will be put at risk. In this explainer, Lilly Yejin Lee and James Glynn at the Center on Global Energy Policy, Columbia University address the big questions, drawing on the data underlying the IEA’s “The Role of Critical … [Read more...]
What’s stopping even bigger Wind Turbines? Blade speed and flexing? More likely manufacturing and installation capacity
Bigger wind turbines make cheaper energy. The sector’s unexpectedly rapid successes in designing and building bigger and bigger turbines has been one of the major success stories of the clean energy sector. In 2023, the biggest turbines in the world will start generating electricity off the coast of the UK. Each of General Electric’s Haliade X turbines stands 260m high from sea level and can generate 13MW at under ÂŁ50/MWh (€56/$61). But how big … [Read more...]
Canada to tap Dormant Volcanoes for Geothermal energy
Live volcanoes might be an obvious source of geothermal energy if it wasn’t for the fact they were dangerous. But dormant volcanoes aren’t, yet they still host vast reservoirs of natural heat near the Earth’s surface. So Canada is looking to generate power from Mount Meager and Mount Cayley, two dormant volcanoes north of Vancouver, explains Lizzy Rosenberg writing for the World Economic Forum. Although Canada isn't known for its volcanoes, its … [Read more...]
New research into making water boil using less energy
Can the boiling of water be done more efficiently? If so, a wide range of processes can save energy, not least the standard use of steam turbines in electricity generators. David Chandler at MIT describes research there that modifies the surface of the heating element. A combination of microscale dents and nanoscale bumps and ridges on the surface, and pillars that allow the “wicking” of water by capillary action, improves the efficiency of … [Read more...]
Deep Geothermal: accessing 500°C for steam turbines. Can it make coal, gas, nuclear redundant?
The concept of “deep geothermal” is very simple. Dig deep enough, like 20km, to access a permanent reservoir of 500°C of heat. There, you generate the steam to power your turbines. The digging of a stable hole and getting the steam to the turbine is the big engineering challenge. But if you find a way that allows you to do it anywhere in the world (i.e. not limiting yourself to existing geological formations), nobody will ever need other … [Read more...]
New thermophotovoltaic cells turn heat into electricity more efficiently than a steam turbine
Over 90% of the world’s electricity comes from heat-generating power plants using coal, natural gas, nuclear energy, and concentrated solar energy. Steam turbines have always been the standard for converting that heat into electricity. On average they are only 35% efficient, with moving parts that cannot cope with temperatures above 2,000 degrees Celsius. Jennifer Chu at MIT describes new research, in collaboration with NREL, that has led to a … [Read more...]
Synchronous condensers will stabilize the power grid as the Faroe Islands pivot to 100% green energy
The isolated Faroe Islands in the North Atlantic has an ambitious goal to become the world’s greenest group of islands. That means by 2030, SEV, the islands’ power utility, will be using 100% green electricity from hydropower, solar and wind and potentially tidal streams. As well as being an important climate change initiative, this will bring economic benefits as the Faroes will no longer rely on expensive fossil-fuel imports. However, … [Read more...]
How to keep winter ice off a Wind Turbine’s blades
Nearly 800GW of wind power have been installed worldwide so far, with plenty more to come. But the Texas freeze in February showed how vulnerable wind turbines are to ice. Hui Hu at Iowa State University summaries his team’s research into solving a problem that can cut generation by 20% or even shut down turbines completely. He explains why existing de-icing solutions for airplane wings offer only a partial solution. Metal airplane wings can be … [Read more...]
Essential energy transition metals: “Eco-friendly” trawling of ocean floor could replace land mining
The availability of metals for raw materials has a make-or-break impact on the future of EVs, wind turbines and many other energy sector applications. The world needs 3bn EVs and 10tn kWh/yr more clean energy by 2040 to have any chance of achieving our climate goals. We need so much more that recycling what we already have won’t make a noticeable difference. Mining on land already has very serious negative environmental and social consequences. … [Read more...]
Recyclable Wind Turbine Blades: thermoplastic, next-generation
When wind turbine blades are decommissioned they are usually scrapped and thrown into landfill because they cannot be recycled. In the U.S. over the next four years alone that will be the fate of more than 8,000 blades. As wind installations increase so will that number. It's because most blades are constructed from epoxy or other thermoset resins. So National Renewable Energy Laboratory (NREL) researchers are using a thermoplastic resin, … [Read more...]
