[pj3000]

How your city/state produces electricity does not necessarily correlate with what the source of electricity is in your home, workplace, etc.

It can depend on many factors: which of the multiple, interconnected grids in where the city is located; who the end-use customer purchases their electric supply from... the electric utility, a competitive electric provider, an energy brokerage; how the electric utility purchases its power on the wholesale market/what generation types make up its portfolio; whether or not the electric utility is also a generator; whether or not electricity is supplied by out of state generators...

We have interconnected electric grids. Just because there's a coal-fired power plant and a hydroelectric plant in your city does not mean that when you turn on your TV, it's necessarily being powered by electricity coming from that coal-fired power plant and that hydroelectric plant.

It might not even be coming from your state. For example, Pennsylvania is one of the top 3 electricity producers in the US. It produces much more than it consumes, so it supplies other states within the same grid... which stretches from New Jersey to Chicago and down to North Carolina.