How are electricity generation?
Well your bill doesnt have the generation rates on it. It has the residential supply rate. In the US, the public utilities have government oversight that limits what the electricity companies can charge. Basically the utilities make a proposal, providing details like line maintenance, bulk electricity production / purchasing costs and projections, and make proposal for new rates, and it either gets approved or rejected. If rejected its typical that theyre provide an acceptable new rate. This is basically a regulated monopoly.