Not really true, ff. Having four times the coal does NOT mean...

Not really true, ff. Having four times the coal does NOT mean four times the annual revenue! It's the MW of the power station that determines that, not the tonnage. The size of the resource just means that it will last longer for a similar MW power station. In this case potentially four times longer.

Now, if they announce a bigger power station... say, 1600MW, THEN you can project that the revenue will be four times greater. :)