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UK announces commercial operations of longest land/subsea interconnector

nationalgrid.com

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Re: UK announces commercial operations of longest land/subsea interconnector

#121

Post by cinntaile »

quijoteuniv wrote: post #106
londons_explore wrote: post #45

Earlier quoted context omitted.

Unfortunately, Denmark has many of the same winds as the UK, so on the exact same days the UK has excess power, Denmark doesn't need power...

But this promote better flow to Norway that has the hydropower, ultimately making more profit to the Energy Companies there. Sell expensive hydro energy when there is no wind, buy cheap wind energy at night when no pnes need it and pump water to the reservoirs. It would be good to see how this cable was lobbied and some estimates in the gain in profit the multinational energy companies are making. Or did everyone thi…

The point of the cable is to balance out the energy flows across Europe and to make renewable energy less variable. If there is excess supply in the UK, they can make money by selling it to the continent and if there is too little energy they can buy it from the continent. It works the same the other way around.

Re: UK announces commercial operations of longest land/subsea interconnector

#122

Post by VBprogrammer »

doikor wrote: post #113
VBprogrammer wrote: post #34

Earlier quoted context omitted.

That's a very recent phenomenon though right? Presumably the current rates of inflation have a big impact. It wasn't so long ago that we were seeing record low strike prices being accepted for offshore wind, down to about £40/MWh.

It’s mostly the fact that the more wind you build the less each turbine will make in profit as in general they all spin at the same time pushing the prices down when they produce electricity. The solution is to increase demand during those moments and thus these new interconnects to Denmark and Norway. Other option is to build storage or new consumption (hydrogen, ammonia, e fuels, etc)

I don't think that is particularly an issue, at least in the UK. They have a guaranteed price per unit. If the wholesale price is above that then it is paid back.

Re: UK announces commercial operations of longest land/subsea interconnector

#123

Post by VBprogrammer »

tomatocracy wrote: post #120
VBprogrammer wrote: post #34

Earlier quoted context omitted.

That's a very recent phenomenon though right? Presumably the current rates of inflation have a big impact. It wasn't so long ago that we were seeing record low strike prices being accepted for offshore wind, down to about £40/MWh.

There are a couple of things which are misleading about the quoted CfD strike prices. Firstly they are in 2012 prices. Secondly, they are inflated by CPI every year which means the market prices then lower than a true fixed price would be priced. Thirdly, in all rounds prior to the most recent round, what was granted by govt were actually options to enter into a CfD, so developers were able to walk away and replace C…

I actually meant to say interest rates above but that these strike prices are inflated by CPI isn't really obvious so I'm glad you've mentioned it.

Is there anywhere I can read about these arrangements? It would be really interesting to know the true cost per mWh delivered from some of these schemes.

Re: UK announces commercial operations of longest land/subsea interconnector

#124

Post by Seanambers »

quijoteuniv wrote: post #106
londons_explore wrote: post #45

Earlier quoted context omitted.

Unfortunately, Denmark has many of the same winds as the UK, so on the exact same days the UK has excess power, Denmark doesn't need power...

But this promote better flow to Norway that has the hydropower, ultimately making more profit to the Energy Companies there. Sell expensive hydro energy when there is no wind, buy cheap wind energy at night when no pnes need it and pump water to the reservoirs. It would be good to see how this cable was lobbied and some estimates in the gain in profit the multinational energy companies are making. Or did everyone thi…

This shit has ruined the Norwegian electricity market and wrecked havoc on the prices. Norway has an insane amount of hydro which is cheap but the market price has gotten very expensive because of European idiocy and this common market the Europeans are working for.

F the entire thing.

Re: UK announces commercial operations of longest land/subsea interconnector

#125

Post by MomoXenosaga »

Seanambers wrote: post #124
quijoteuniv wrote: post #106

Earlier quoted context omitted.

But this promote better flow to Norway that has the hydropower, ultimately making more profit to the Energy Companies there. Sell expensive hydro energy when there is no wind, buy cheap wind energy at night when no pnes need it and pump water to the reservoirs. It would be good to see how this cable was lobbied and some estimates in the gain in profit the multinational energy companies are making. Or did everyone thi…

This shit has ruined the Norwegian electricity market and wrecked havoc on the prices. Norway has an insane amount of hydro which is cheap but the market price has gotten very expensive because of European idiocy and this common market the Europeans are working for. F the entire thing.

Your country has made a trillion euro from oil and gas because of the international market.

Re: UK announces commercial operations of longest land/subsea interconnector

#126

Post by greenbit »

formerly_proven wrote: post #47
mikeyouse wrote: post #26

Earlier quoted context omitted.

Currently it’s only 800MW at 525KV but eventually they’ll bump that to 1,400MW so 2,700A if my math is right?

It’s bipolar (+- 525 kV) according to W

So while each line is only 525kV relative to the environment, it's 1.05MV between the two lines. A megavolt seems to have been practical HVDC tech for a while now, I was just idly wondering if they had taken things up a notch in this latest project.

Re: UK announces commercial operations of longest land/subsea interconnector

#127

Post by reverendjames »

malwrar wrote: post #70

Are there any safety concerns around 1.4GW flowing through a cable surrounded by salt water? I’m entirely uneducated in the ways of zap juice, but that sounds like a recipe for spontaneous electrocution if that cable breaks anywhere.

No.

Re: UK announces commercial operations of longest land/subsea interconnector

#128

Post by MomoXenosaga »

justinclift wrote: post #64
CapitalistCartr wrote: post #63

So it has a payback period of over 3 decades. Lots of talk of all the resources spent building it, only the carbon savings of usage. I wonder how long the carbon payback is. In an era of rapidly improving renewables, this doesn't seem like picking low-hanging fruit.

It's done by NGV, which was described as: NGV develops, operates and invests in energy projects, technologies and partnerships to accelerate the development of our clean energy future. Maybe they're one of those places which invests in developing infrastructure tech, to pave the way for subsequent generations?

I take it for granted but living in a continent without brown outs is nice indeed.

Re: UK announces commercial operations of longest land/subsea interconnector

#129

Post by chx »

kmlx wrote: post #86
chx wrote: post #82

Earlier quoted context omitted.

sigh The UK’s net EU budget contribution in 2014 was £9.8 billion https://commonslibrary.parliament.uk/research-briefings/cbp-... Meanwhile the UK exported $276 billion worth of good to the EU more than half of its total https://www.worldstopexports.com/united-kingdoms-top-import-... Not counting anything else just these two we could say the EU had a 3.6% tariff on UK imports (insanely low! check https://www.wto.org/…

> The UK’s net EU budget contribution in 2014 was £9.8 billion the state’s budget contribution. aka taxes and other income of the state. > Meanwhile the UK exported $276 billion worth of good to the EU more than half of its total not the UK, not the state. the opposite. the private sector.

And state income comes from...?

Re: UK announces commercial operations of longest land/subsea interconnector

#130

Post by ClumsyPilot »

CapitalistCartr wrote: post #63

So it has a payback period of over 3 decades. Lots of talk of all the resources spent building it, only the carbon savings of usage. I wonder how long the carbon payback is. In an era of rapidly improving renewables, this doesn't seem like picking low-hanging fruit.

> payback period of over 3 decades

That's quite good for infrastructure, considering that it operates for hundreds of years - that's the age for most bridges, tunnels, etc.

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