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Comment Re:Stop now [and just give up] (Score 1) 107

The problem with fusion is that until someone demonstrates a practical way to sustain it and produce energy, it's probably not going to get the kind of funding needed to demonstrate a practical way to sustain it and produce energy. At least not in less than several decades, and we don't have that long.

Like fossil fuels and nuclear, it is competing for funding with renewables. Renewables are mature, are cheap, and the market is growing. Because we are all capitalist societies, that's the only way we can address climate change.

I'd love to see fusion reactors in my lifetime, but nobody has a path to them that isn't full of huge challenges and unknowns.

Comment Re:Stop now (Score 1) 107

It's not necessarily dangerous. We can start small, and anything you put up to block the sun is going to be pushed away from it by the pressure of the photons, or you can stick it in a decaying orbit so it has a limited lifespan.

As long as it is designed to have a limited lifespan and clear itself out naturally, like the tens of thousands of LEO satellites we are throwing up now without much care, the damage that can be done is negligible. Once proven safe we can look at scaling it up, in a way that means if we stop replenishing it, it just goes away by itself after a while.

Comment Re:These articles are cool and all but (Score 1) 93

The cost of electricity in the UK is dictated by gas prices, and despite having our own North Sea gas we pay the international market rate. That went up when Putin started his war in Ukraine. The faster we get off gas, the sooner the bills can come down.

Before then we really need to break the link between gas prices and electricity prices. Currently the way the auction works, everyone gets paid the amount offered to gas generators (nuclear has a special deal that is insanely expensive but doesn't set a price floor).

Comment Re:undeniable (Score 4, Informative) 93

The UK has at least 20x as much wind power available than its current electricity consumption. Energy independence is entirely possible, if not particularly desirable.

The UK could be a massive exporter of clean energy. Scotland in particular could be getting rich off it, but like with the oil they aren't seeing as much of the benefit as they should be seeing.

Comment Re:They haven't solved any of the social problems (Score 1) 43

The containment buildings didn't contain the meltdown, and the emergency cooling system that was supposed to let them use external pumps diverted the water into holding tanks instead of the cores. There were many screw-ups, and even now they are behind schedule with the decommissioning and clean up.

Comment Re:They haven't solved any of the social problems (Score 1) 43

Chernobyl and Fukushima had the same root cause - too expensive. Chernobyl skimped on not bothering to build containment buildings or train people properly. Fukushima didn't build the necessary tsunami defences, despite being warned.

It's nuclear's Achilles' heel. Costs too much to be commercially viable, can't afford to be properly insured, and doesn't get the necessary level of investment once it's running.

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