level 1 corresponds to a small town in the desert. They have a model population of
100,000 people, and thus consume an average of 91000*100,000 kWh per year, which
translates to 9,100,000 MWh/year, which makes an output of about 1038MW on average. Thus
for our general population model we get an output of 1.038MW per 100 people.

Thus the required power output of level 1 is 1000 MW.

Thus the required power otuput of level 2 is 1400 MW, corresponding to about 140000 ppl.

People buy power at about 10c/kWh, so if we model one minute of gameplay as half a 
year, then we get that we make $876 per minute per MW

An average sized coal plant makes between 500 and 1000 MW, so we'll set it's power
output to 500MW.

Coal has a cost of around $700 per kW, so a 500MW plant would cost about $35 million

Coal has a cost of about $15 per ton, just roughly, and one ton generates 
