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Equivalent of 97% of Scotland’s 2020 electricity consumption was from renewables

bbc.com

171–180 of 282 posts

Re: Equivalent of 97% of Scotland’s 2020 electricity consumption was from renewables

#171

Really misleading article IMO. What this actually means is Scotland sometimes generated 200-300%+ of its demand from wind (and "exported" the rest), and sometimes low %age points and used other sources/imports. It makes it sound like Scotland is wind powered 97% of the time (only 3% more to go!), which is very different. There is an increasing crisis in the UK of negative electricity prices (typically when it is sunn…

Most articles about generation are inaccurate in this sort of way. France has huge base load capacity thanks to its nuclear power plants, and the UK has had excess peak load capacity, and we’ve sold each other electricity via the channel DC link, but a lot has been written over the years on how the UK has not relied heavily on nuclear power, or on how France has been fine relying heavily on nuclear.

France has different problems, though. Nuclear power stations need to shut down in summer when temperatures get too high and cooling is insufficient (this is done mostly to avoid killing plants and fish in the rivers).

Whenever there's a maintenance or refuelling operation, comparatively large amounts of power generation goes offline for weeks.

While this can be dealt with through careful planning, the elephant in the room for France is the age of their nuclear reactors. The vast majority or reactors is 40 years old or reaches the end of their design-life within this decade. Even with ten year extensions, about more than half of all French reactors will have reached EOL by 2035.

At the same time there's only a single new reactor under construction right now.

Given that it takes about a decade for a nuclear reactor to go from start of construction to commercial operation, France should really start building about a dozen new reactors within the next 5 years...

Re: Equivalent of 97% of Scotland’s 2020 electricity consumption was from renewables

#172

Earlier quoted context omitted.

Negative electricity prices are not a crisis but a great business opportunity. There is a lot of money to be made from free energy, or even better energy that someone is paying you to take. There are, for example aluminum plants, whose major cost is electricity. There is steel, which can be made by electric arc furnaces (this is not the only way to make steel, but it certainly the more environmentally friendly). Ther…

As long as the powersource isn't reliable it's a problem. A problem that doesn't have any solutions in sight that are closer than something like fusion which would be the preferable solution rather than unreliables like wind and solar.

> "something like fusion which would be the preferable solution"

The preferable solutions are ones that actually exist.

Re: Equivalent of 97% of Scotland’s 2020 electricity consumption was from renewables

#173

Really misleading article IMO. What this actually means is Scotland sometimes generated 200-300%+ of its demand from wind (and "exported" the rest), and sometimes low %age points and used other sources/imports. It makes it sound like Scotland is wind powered 97% of the time (only 3% more to go!), which is very different. There is an increasing crisis in the UK of negative electricity prices (typically when it is sunn…

> increasing crisis in the UK of negative electricity prices

To be specific, from https://www.current-news.co.uk/news/instances-of-negative-pr...

"Great Britain saw 80 hours of negative pricing in the first nine months of 2020": nine months is 6570 hours. So about 1.2% of the time.

Re: Equivalent of 97% of Scotland’s 2020 electricity consumption was from renewables

#174
post #139

Earlier quoted context omitted.

Nissan were looking into V2H for years but not sure what happened with it. I was registered for a pilot at one point with a third party but never got invited to participate and have since forgotten who the company is. EDIT: Looks like these can now be purchased and imported from China by end users: https://www.setec-power.com/product/vehicle-to-home-v2h-6kw/

Second gen Leafs are equipped with the proper hardware - at least in Japan.

I believe all current-generation LEAFs worldwide are V2G-capable.

Re: Equivalent of 97% of Scotland’s 2020 electricity consumption was from renewables

#175
post #146
post #91

Earlier quoted context omitted.

Storage heaters, more efficient refrigerators, smart washers that turn on when electricity is cheap. I really hope these kinds of things start to increase in popularity, but I think it needs more government intervention for it to happen.

The only really critically necessary government intervention is making sure the grid can handle this. It would probably help if they mandated smart electric storage heaters on new builds but beyond that I'm not sure you need to do much more. You can rely on people's self interest to buy a new washing machine that saves them money, for instance.

I was thinking more along the lines of international standards for how the appliance could tell that it was in a period of low electricity pricing.

Also, since green tech often saves fewer actual dollars from a consumer's pocket than the "real" cost of the externalities saved, subsidies and/or eco-friendly certification would also be good.

Re: Equivalent of 97% of Scotland’s 2020 electricity consumption was from renewables

#177
post #45

Earlier quoted context omitted.

>There is an increasing crisis in the UK of negative electricity prices It seems like an opportunity more than a crisis to me. There are tons of potential applications for "free" electricity. * Storage heating/cooling that's basically free * Manufacturing carbon neutral jet fuel * Cheaper aluminium production It could also lead to onshoring of certain industries which previously moved to locales with access to cheap…

You're not solving the problem. There are lots of applications for "free" electricity, but there aren't many applications for unpredictable and unstable bursts of free electricity.

The applications can be any process which converts electricity into another usable form of energy. Some we do already, like aluminium smelting and steel manufacture. Some we have the technology to do, but don't currently do because the economics don't work - water desalination, hydrogen production through electrolysis, electro-chemical synthesis of ammonia.

We currently make hydrogen and ammonia from methane - there's no financially viable way to make it from electricity which is generated from fossil fuels (and therefore always costs more). Once that electricity becomes free or negative, it completely changes the economics.

Re: Equivalent of 97% of Scotland’s 2020 electricity consumption was from renewables

#178

Earlier quoted context omitted.

Power lines are built from hydro power plants in the mountains to the cities. Obviously you know that so I don’t understand what you were trying to say.

TBH, I'm confused about what you were trying to say. Unless you live in the coastal lowland countries of Europe, pretty much every country has some geography conducive to hydro. And what does the "sparse" (which implies thinly distributed, FYI, hence the person who replied to you specifying that it's actually quite dense in a localised area) population have to do with hydro or not?

> TBH, I'm confused about what you were trying to say.

Amount of hydro power capacity per capita in Scotland is much higher than say in Wales.

> pretty much every country has some geography conducive to hydro

This is simply not true. Availability of hydro in Switzerland is much better than for example in Lithuania.

Re: Equivalent of 97% of Scotland’s 2020 electricity consumption was from renewables

#179

Really misleading article IMO. What this actually means is Scotland sometimes generated 200-300%+ of its demand from wind (and "exported" the rest), and sometimes low %age points and used other sources/imports. It makes it sound like Scotland is wind powered 97% of the time (only 3% more to go!), which is very different. There is an increasing crisis in the UK of negative electricity prices (typically when it is sunn…

I assumed the UK's very ambitious hydrogen strategy was in part to address these issues?

Re: Equivalent of 97% of Scotland’s 2020 electricity consumption was from renewables

#180

Earlier quoted context omitted.

Exactly. The "super canada" concept. Anyone who thinks Canada is in any way comparable to Europe as a UK trading partner doesn't know much about geography. Maybe if Britain hadn't had a hissy fit they could now be selling that extra power across the channel.

Well I believe the UK and EU are working on the agreements necessary for cross border trading of electricity: https://www.gov.uk/government/publications/trading-electrici... There's no reason to believe that something won't be worked out in time. So if by "hissy fit" you mean the people of the UK looked at the pros and cons of EU membership and narrowly decided that the cons can be lived with then.. yeah sure.

Huge amounts of power are already traded every day between the EU and UK.

Live view: https://www.electricitymap.org/map

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