CityCyclingEdinburgh was launched on the 27th of October 2009 as "an experiment".
IT’S TRUE!
CCE is 16years old!
Well done to ALL posters
It soon became useful and entertaining. There are regular posters, people who add useful info occasionally and plenty more who drop by to watch. That's fine. If you want to add news/comments it's easy to register and become a member.
RULES No personal insults. No swearing.
"no ribbon cutting opportunities / jollies / hard hat wearing / canapés and champers receptions / etc."
Not strictly true, but it took a while to find this -
http://www.changeworks.org.uk/news-and-events/news-archive/launch-of-£60m-scheme-for-fuel-poverty
Dinorwig Power Station is a pumped hydroelectric station in Wales. It's great for picking up sudden fluctuations in the grid but a pretty lousy battery.
It's only 76% efficient which means that (ignoring capital cost) any electricity it produces is 30% more expensive (money and pollution) than it would have been if used at the point of production.
I'm not sure about a cold start but when in standby mode it can go from 0 to 1.32Gw of production in just 12 seconds (coincidentally 76% production).
If you want to read more about it there is a pretty good article here: https://www.theregister.co.uk/2016/05/16/geeks_guide_electric_mountain/
30% more expensive (money and pollution) than it would have been if used at the point of production.
Not entirely fair, they pump when the electricity is cheap taking up base load from nuclear and coal which isn't so easily "turned down". I expect wind and solar will also be in the mix of mismatched supply demand.
Also it would take a maaahoooosssive battery to provide 1.32Gw in 12 seconds! Though lithium is much more efficient its also much more expensive than water as a storage medium.
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