That's slightly more than half of one inch, and even I can see that without my specs.
UK electricity generation in 2018 fell 1.6 percent to 333 TWh, the lowest level since 1996 [1]
.
A bit of arithmetic
$ echo $((333000/365/24))
38
indicates that that is equivalent to 38 GW, hour in, hour out throughout the year. Peak power capacity is obviously much more than that.
[1] https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/820708/Chapter_5.pdf
hmm. The first words should have been </sarcasm> but Slashdot consumed the markup.
All Finagle Laws may be bypassed by learning the simple art of doing without thinking.