med-mastodon.com is one of the many independent Mastodon servers you can use to participate in the fediverse.
Medical community on Mastodon

Administered by:

Server stats:

411
active users

#windpower

8 posts7 participants1 post today

Greece and Egypt reaffirm plans for a 1,000-kilometre undersea power cable.

Greece and Egypt have reaffirmed their commitment to a proposed undersea electricity connection designed to transport renewable energy from North Africa to Europe.

The project, estimated to cost around €4 billion, is expected to become operational within five years under an ambitious timeline set by both governments.

mediafaro.org/article/20250507

Engineers walk next to solar panels at Benban Solar Park in Aswan. | Copyright AP Photo
Euronews · Greece and Egypt reaffirm plans for a 1,000-kilometre undersea power cable.By Gavin Blackburn

Major UK wind power project Hornsea 4 is shelved.

Developers have pulled the plug on one of the UK’s biggest offshore wind projects.

Danish renewables firm Ørsted said its decision to “discontinue” the 2.4 GW Hornsea 4 wind farm “in its current form” was a result of rising supply chain costs and higher interest rates.

A government spokesperson said the government would “work with Ørsted to get Hornsea 4 back on track”.

mediafaro.org/article/20250507

An offshore wind farm in the North Sea. | Pool photo by Ingo Wagner/EPA
Politico.eu · Major UK wind power project Hornsea 4 is shelved.By Charlie Cooper

Search for the causes of the #blackout in #Spain and #Portugal are ongoing, will likely take some time, and (I suspect) will result at least one PhD thesis. Because major disasters like this never have a _single_ cause - several things have to go wrong for them to happen.

The _easy_ answer which I know is already going to be shared by The Usual Suspects is:

" #RenewableEnergy is too intermittent and our power grids cannot cope with them! We need to switch off #PV and #WindPower and return to a centralized power supply!"

And as usual, the easy answer is at the very least misleading, if not outright wrong. It _is_ true that renewable energy is more intermittent. But power grids can be made more robust to cope with that intermittency.

I don't know how this is done in Portugal and Spain, but here in Germany the #Bundesnetzagentur (BNetzA, Federal Grid Agency) is in charge of regulating the German power grids. One of their recent efforts to make the German grid more stable is called "Redispatch 2.0".(*)

Under this scheme, the regional grid operators (Distribution System Operator, DSO) have to submit forecasts about their grids to the Transmission System Operators (TSO) - the companies that run the high- and ultra-high voltage power grids that connect different regions and countries with each other. These forecasts have to be submitted for 72 hours in advance, in 15 minute intervals, and be refreshed for every 15 minutes.

The TSOs can then aggregate all those forecasts and react in order to stabilize their grids. Options include:

If there is too much power generation, they can either reduce power generation or add some loads.
If there is too little power generation, they can either increase power generation or shut down some loads.

This should make it much more unlikely to trigger massive blackouts on that scale, or even smaller ones.

Another problem is that many PV installations, especially smaller ones, do not have the physical infrastructure to shut down if there is an excess of production - they just send their electricity into the grid, whether or not the grid can handle it. But this, too, is in the process of changing - it is now mandatory to install so-called Smart Meter Gateways with all such installations, and these gateways also have secure channels that can send control signals to the PV installation.

All this is still a work in process and not trivial by any means, but it _is_ possible to make power grids more resilient for renewable energy. And this is desperately needed for the #EuropeanUnion - we have little fossil fuels of their own, and most suppliers are increasingly authoritarian if not outright hostile to us. The sooner we get independent from outside energy sources, the better.

(*) Full disclosure: Redispatch 2.0-related products are a major product line for my employer.

#Renewables #PowerGrid #SolarEnergy
kyon-energy.de/en/glossar/redi

www.kyon-energy.deRedispatch & Redispatch 2.0

The UK is in talks to buy back nuclear sites from French firm EDF.

The UK government is in talks with its French counterparts about purchasing back three nuclear sites from state-owned energy giant EDF, as Whitehall looks to take control of the upcoming expansion of nuclear power.

The move would come as the UK mulls the most ambitious revival of nuclear power in a generation.

mediafaro.org/article/20250425

Heysham 2 nuclear power station. | Christopher Furlong/Getty Images
Politico.eu · The UK is in talks to buy back nuclear sites from French firm EDF.By Nicholas Earl, Nicolas Camut
Replied to neald

@neald Absolutely! Very near #Glasgow is the massive onshore #Whitelee #windfarm . The developers had the brilliant idea of including a visitor centre/cafe and encouraging people to visit the site to make use of the tracks between the #turbines for #walking, #gravelbiking and #running. It's massively popular which proves that most people actually really like wind farms! #windpower #energy
whiteleewindfarm.co.uk/visitor

I'm sure this puts me in a minority of one, but I really like seeing wind turbines. I don't think they ruin a view at all.

Look at these little bueties. Those are keeping the lights on.

They're a testament to human ingenuity. We've built a device that turns wind into electricity, and stood it up in the ocean a mile out to sea.

I don't think we appreciate how downright miraculous so much of the infrastructure around us is.

Every time I see wind turbines or a solar farm, it gives me a tiny bit more hope for the future, so I think they're gorgeous.

Wind turbines in the Great Lakes could provide a significant amount of renewable energy to Ontario.

Opinion: I didn’t know that Ontario :flagon: has a moratorium on offshore wind power.

cbc.ca/news/science/offshore-w
- - -
Les éoliennes dans les Grands Lacs pourraient fournir une bonne portion de l’énergie renouvelable en Ontario.

Opinion: J’ignorais que l’Ontario :flagon: avait un moratoire sur les éoliennes «en mer».

// Article en anglais //

CBCWill offshore wind ever come to the Great Lakes? | CBC NewsWind turbines in the Great Lakes have the potential to produce huge amounts of clean energy in one of the most popular regions in North America. But offshore wind is banned in Ontario and facing headwinds in the U.S. Here's why some think now is the time to give it a second look and a closer look at the barriers.

The expansion rate for wind power in Germany has increased significantly at the start of 2025.

In the first quarter of 2025, wind turbines with a capacity of 995 megawatts were newly commissioned in Germany.

This is the highest figure since 2018 and around two and a half times as much as three years ago.

mediafaro.org/article/20250420

Transportation of a wind turbine component in Rhineland-Palatinate in 2014. | Image: Bernd Zillich/ Shutterstock.com (Image: Bernd Zillich/ Shutterstock.com)
Heise Online · The expansion rate for wind power in Germany has increased significantly at the start of 2025.By Stefan Krempl