71–80 of 712 posts
Earlier quoted context omitted.
Somehow that’s an often missed aspect of this. Yeah, ditching coal has a wide array of nice side effects. It has killed many, many more than the world’s nuclear accidents.
Coal probably kills more people in a single day than all nuclear accidents ever combined
Earlier quoted context omitted.
Steel is the tough one - the vast majority of new steel is produced using blast furnaces and coke. DRI is still a fringe product. I mean, the UK proudly trumpets that they're coal-free, while entertaining a new coking coal mine.
Steel is also a small percentage of coal use. The vast majority of coal is used for electricity generation.
Electric power—469.9 MMst—91.7%
Industrial total—41.9 MMst—8.2%
Industrial coke plants—16.0 MMst—3.1%
Industrial combined heat and power—10.1 MMst—2.0%
Other industrial—15.8 MMst—3.1%
Getting down to 6% of our current coal use would be amazing. So much lung cancer and asthma would be prevented.
[1] https://www.eia.gov/energyexplained/coal/use-of-coal.php
No country will be truly coal-free until they are a net energy exporter and they do not import any goods that use coal-based energy in their supply chain. Europe has de-industrialized which means it has effectively exported its coal burden.
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Are they selling to UK that AFAIU stopped building wind 10 years ago. Regulatory advantage...
Not only has the UK not stopped building wind, they have over 30GW of installed wind capacity and sell electricity to Ireland for most of the year.
For those who don't know, Ireland operates an all-island grid, and EirGrid (the grid operator for the Republic) owns SONI (the grid operator for Northern Ireland). That means that 'UK' and 'Ireland' in this has a large Northern Ireland shaped lump of ambiguity that statement.
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If you use Renewable Energy Sources, it may happen there will be no wind or no sun. So you need some auxiliary source of energy. If you want it at hand, this must be something with fast cold start. So black/brown coal power plan will not help you, similarly nuclear. You need to burn either gas or "biomass", that is wood/turf, etc. Those power plants have about 1h cold start. Hence, in order to have RES you need to em…
> this must be something with fast cold start. So black/brown coal power plan will not help you, similarly nuclear. Nuclear plants provide base load and they are extremely fast at ramping up/lowering production. All modern nuclear plants are capable of changing power output at 3-5% of nameplate capacity per minute: https://www.oecd-nea.org/upload/docs/application/pdf/2021-12... You don't shut down power plants. None…
> None of the power plants ever do a "fast cold start"
Somewhere in each grid you will have “black start” capacity contracts, dunno if nuclear can fills this role (or if grids exclude nukes for one reason or another).
Plenty of peaker plants built with the intention of running double digit hours per year and therefore the tradeoff supports being largely “off” in between those calls. Batteries might fill that gap.
Earlier quoted context omitted.
If you use Renewable Energy Sources, it may happen there will be no wind or no sun. So you need some auxiliary source of energy. If you want it at hand, this must be something with fast cold start. So black/brown coal power plan will not help you, similarly nuclear. You need to burn either gas or "biomass", that is wood/turf, etc. Those power plants have about 1h cold start. Hence, in order to have RES you need to em…
> If you use Renewable Energy Sources, it may happen there will be no wind or no sun I still find it staggering that people feel like this is something that needs to be said as if it’s surprising or a novel idea. Do you really believe smart people haven’t been working through these challenges for decades ?
Earlier quoted context omitted.
Coal probably kills more people in a single day than all nuclear accidents ever combined
Probably but damage from nuclear accidents isn't only measured in deaths. No coal plant accident has caused an exclusion zone for 40 years.
[1]: https://en.wikipedia.org/wiki/Kingston_Fossil_Plant_coal_fly...
[2]: https://en.wikipedia.org/wiki/Buffalo_Creek_flood
[3]: https://en.wikipedia.org/wiki/Martin_County_coal_slurry_spil...
[4]: https://en.wikipedia.org/wiki/Martin_County_water_crisis
No country will be truly coal-free until they are a net energy exporter and they do not import any goods that use coal-based energy in their supply chain. Europe has de-industrialized which means it has effectively exported its coal burden.