I first visited this power plant last summer, and finally got a chance to go back a few weeks ago. While I stuck to the main floor last time, I spent most of this visit looking through all levels of the boiler house, where I found the former coal conveyor room. Unfortunately, just as I moved on to explore the turbine hall, I was interrupted by some very loud contractors collecting scrap metal, and had to hide on the roof for two hours while waiting for them to piss off, so I didn't get nearly as many shots as I would have wanted. Nevertheless, here's what I managed to get.
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As always, thanks for looking!