How much is a coal power station?

Answer 1

It depends on the size of the plant, and it's generating capacity. Most coal powered generating plants cost in maintenance about $1.00 per megavolt-ampere-hour of generating capacity in maintenance (non-fuel) cost, annually.

So a 450 MW generating plant will cost about $86 million dollars per year to maintain all the operating systems. Upgrades and refits add to this cost, and this does not include salaries of the plant workers. These costs are often averaged over 3-5 years, as generating units are not taken offline every year but every 3 to 5 years.