I lost count of how many dipoles there were stacked up, looks like a 20 stack or more! ....Imagine the gain on that lot!

I counted 12 dipoles guessing around 17db - probably more. With 100w that's about 5kw

And by the look of racks with transmitters, I would say that pure transmitter power is no less than 10kW, maybe even 20.
100w is lost in transmission line and splitters only

Bad Influence FM Dorchester J-Pole 2008

And This One maybe?