It was too big to fit it all in a screenshot so gonna do a tour-thing with screenshots instead. I did however screencap the map of the power plant, which looks like this:
The solid blocks in the middle are just clumps of engines with pipes running along above and below to feed the central columns of engine blocks.The dotted lines stretching out are pipes to the pumps and at the top i have a bunch of accumulators for transferring power to my main powergrid.
Here's the coal delivery, not very interesting just the train running in with coal, it gets unloaded then the drones haul it to the two clusters, each with their own drone network for distributing it further.
Coal Dropoff
I didn't want the whole plant to be under the same drone network because drones become less and less efficient the further they have to travel, so i used these little exchange points to swap coal from one net to another.
Drone Exchange
First thing i built was the boilers on the left side of the plant, which is why the layout isn't very good, there's way too much pipe spaghetti and i even forgot to link one of the engine rows and had to run a separate pipe through the middle of the west block 
It also made it hard to tell what connected where since nothing was really grouped, and i didn't have enough space for all the boilers, which is why some of the boilers got moved at the top...Western pumps
...so for the eastern setup i tried to group things up better; part of the problem was having the boilers all in a big impassable column so i broke it down to only have half the boilers arranged in the column while the boilers connecting the central engines were placed on the pipes running above and below the engine blocks to save space.
East Pumps
Side Boilers
And a picture of the central area with most of the engines in it so you can see how the pipes were laid out. The left train track is meant to redistribute coal to other stations for train kibble, but i don't have any stations set up to use it yet 
The middle track is a service track i used to move in engines, pipes and other stuff i made elsewhere, and later to move out ore and stone i had mines where the power plant was to be built.Central Engines
And finally i want to show how the power grid is laid out for the station. Since i didn't want the plant to run at all times due to how much coal it gobbles up the station is split into two grids, one for the engines and one for all the inserters, drones and lamps throughout the plant. 
Energy Subnets
This is done to prevent the steam engines from attempting to power their own coal supply; if they did without access to solar power the plant would deadlock if it ever ran out of power for any reason. If the entire plant was connected to solar power i wouldn't be able to run my factory from accumulated solar power, as the engines would just take over as soon as night hits. The last part is the accumulators used to connect buffer the engines from the main powergrid. They're setup so the accumulators are placed simultaneously in both subnets; that way the engines recharge them and the main net discharge them when solar power drops. The plant still outputs a small amount of energy, but nowhere near full strength unless all outside capacitors are depleted; then it will go up to full power.
Accumulator Station
As for general stats, the station has a peak production of 540kW, during which it eats ~67 coal per second.
I forgot to keep track of how many materials were used to build it unfortunately
Hope you liked tho.
I then went for 1.21 megawatts but forgot i divided by 2 and it only made it to about half 
