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UK Wind Farms Are Overstating Their Output

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11–20 of 58 posts

Re: UK Wind Farms Are Overstating Their Output

#11

The curtailment periods in the UK are already a problem, particularly in Scotland where there is now not enough grid capacity. There's no point building massive farms up there now without corresponding National Grid investment, which isn't happening anywhere near fast enough.

There's a huge amount of North-South capacity being built as part of the holistic network design programme which will unlock a lot of capacity and substantially reduce curtailment.

Re: UK Wind Farms Are Overstating Their Output

#12
post #4

Why is there so much less tidal power. The tides are constant, unlike wind and sun. The UK has a lot of coast and a lot of tides.

There are plans for big tidal barrage projects, especially in the Severn Estuary. Apart from creating power they'd also protect cities from rising sea levels.

They always run into Nimbys who don't understand that sea birds etc are far more threatened by the direct effects of climate change than by projects that affect their habitats in a designed way.

Re: UK Wind Farms Are Overstating Their Output

#13
post #4

Why is there so much less tidal power. The tides are constant, unlike wind and sun. The UK has a lot of coast and a lot of tides.

Tidal power involves machinery below the water, which then becomes as expensive as a boat to maintain. Wind power has just ridden the cost reduction curve so much better.

Re: UK Wind Farms Are Overstating Their Output

#14
post #4

Why is there so much less tidal power. The tides are constant, unlike wind and sun. The UK has a lot of coast and a lot of tides.

The tides are not constant but they are predictable.

The majority of tidal flow is during relative short periods of only a few hours. In order to harvest tidal energy, truly enormous volumes of reinforced marine concrete have to be deployed. The environmental consequences are massive.

Re: UK Wind Farms Are Overstating Their Output

#15
It's probably time to phase out curtailment payments. If renewable is to be the default form of generation it can't have special treatment forever. And it would be an incentive to deploy battery systems on the wind farm side of the grid connection to smooth peaks.

(The whole "overstating your forecast" thing sounds a lot like LIBOR)

Re: UK Wind Farms Are Overstating Their Output

#16
post #4

Why is there so much less tidal power. The tides are constant, unlike wind and sun. The UK has a lot of coast and a lot of tides.

It's really hard to build good tidal power plants beyond the demonstrator stage. Most are difficult to build, expensive to maintain, and require a lot of maintenance.

Re: UK Wind Farms Are Overstating Their Output

#17
post #4

Why is there so much less tidal power. The tides are constant, unlike wind and sun. The UK has a lot of coast and a lot of tides.

There are plans for big tidal barrage projects, especially in the Severn Estuary. Apart from creating power they'd also protect cities from rising sea levels. They always run into Nimbys who don't understand that sea birds etc are far more threatened by the direct effects of climate change than by projects that affect their habitats in a designed way.

> They always run into Nimbys who don't understand that sea birds etc are far more threatened by the direct effects of climate change than by projects that affect their habitats in a designed way.

That's incredibly dismissive of genuine environmental concerns about immediate effects on coastal ecology

Re: UK Wind Farms Are Overstating Their Output

#18
post #15

It's probably time to phase out curtailment payments. If renewable is to be the default form of generation it can't have special treatment forever. And it would be an incentive to deploy battery systems on the wind farm side of the grid connection to smooth peaks. (The whole "overstating your forecast" thing sounds a lot like LIBOR)

> It's probably time to phase out curtailment payments. If renewable is to be the default form of generation it can't have special treatment forever.

Curtailment payments are an incentive for the grid operators to build out transport capacity and for grid consumers to invest into dynamic load control.

Re: UK Wind Farms Are Overstating Their Output

#19
post #5

The curtailment periods in the UK are already a problem, particularly in Scotland where there is now not enough grid capacity. There's no point building massive farms up there now without corresponding National Grid investment, which isn't happening anywhere near fast enough.

This is very interesting can you link somedata sources for funding and capacity ? Your insightful comment is much appreciated. Many thanks for sharing your research

https://www.nsenergybusiness.com/projects/eastern-hvdc-link/

Re: UK Wind Farms Are Overstating Their Output

#20
post #6

Jacob Reese Mogg is involved, you know there's a bit of back scratching going on there then.

> Bloomberg News analyzed 30 million records from 2018 through June 2023

> Former UK Energy Secretary Jacob Rees-Mogg said [...]

JRM was Energy Secretary for 2 months in 2022. I'm not sure that justifies this comment. Is there a greater link that the article doesn't express?

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