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Submission + - China added a Germany-sized electricity grid last year (ourworldindata.org)

AmiMoJo writes: We’ll often see headlines quoting how many gigawatts of new solar farms or coal plants China is building. But it’s hard to get a meaningful sense of scale for how electricity generation in China is changing.

The chart puts it in perspective.

In 2025 alone, China’s electricity generation increased by almost 500 terawatt-hours (TWh). This is compared here to the total amount of electricity that whole countries generate each year.

Germany generates almost exactly that amount. That means China effectively added a Germany-sized grid to its electricity system in just one year.

What’s also quite staggering is that almost all of this new generation came from solar and wind. China generated 340 TWh more electricity from solar than the year before.

Comment Re: Destroy Them (Score 1) 57

They never learn, this happens again and again every time some new technology is developed. Photography, fingerprints, DNA, phone call tracing, CCTV, surveillance doorbells, Tasers, pepper spray, zip tie handcuffs, every tool the police get is abused until they have some expensive losses. Not just the US either, it happens in the UK too.

Comment Re:Wait, what? (Score 1) 84

I'm sure they have adequate protection for their equipment. The problem is everyone else's. If they switch off a large amount of power consumption suddenly, the generators supplying them are instantly putting too much power into the grid, and need to ramp down. Of course many of them can't ramp down very fast, and even things like batteries can only respond as fast as they can detect the problem happening some distance away, so the voltage goes up and the frequency wonders off.

Brown outs are bad, voltage spikes are much worse.

They aren't going to help the grid stay balanced if they aren't forced to. That would be a cost they could avoid.

Comment Re:Range of economics (Score 2) 125

EVs have been cheaper to own for a long time in Europe, especially the Chinese ones which are often cheaper to buy in the first place too. The amount you save depends on if you can charge at home, but it's always better than a fossil over any reasonable period of ownership.

Comment Re:Meanwhile real SMRs are being built (Score 2) 106

Their economic analysis is BS. For example, they discount the cost of "shared" infrastructure, but clearly there is a cost because it has to be built, and scaled to the number of reactors they want to install. At only 300MW each, they will want quite a few of them to make the economics better.

The increased cost of waste handling and refuelling is not properly accounted for either.

Comment Re:Somebody deserves a Medal. (Score 1) 49

That was the original idea with numbers stations, so it was a natural evolution. Owning a consumer radio was not suspicious, so broadcasting on standard civilian frequencies made sense.

The "random" data in the GPS signal is supposedly there to aid with reception and validate the RNGs on the satellites, but it was a pretty obvious place to hide messages too. I'm sure all the other GNSS systems do it too.

Comment Re:Meanwhile real SMRs are being built (Score 1) 106

They are building a BWRX-300, for around $21 billion Canadian. It's a prototype, so high costs are expected I suppose.

The Office for Nuclear Regulation has some issues with their design too: https://www.onr.org.uk/media/b...

It's mostly the usual stuff. The control rods aren't proven to be failure proof, and we have seen accidents due to them not inserting, or getting stuck, before. There isn't enough don't to evaluate loss of coolant faults, another known failure mode. While they don't rely on pumps to circulate the coolant (it's by convection), they still need it to circulate to avoid meltdown. It must circulate through cooling systems like pools or towers.

Good luck to them, but it seems very unlikely that it will be economically viable in the end.

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