That’s not how they price the commodity though. It’s a bundle price based on the average of all sources of generation that are purchased by a given distribution company.

You don’t consciously choose the plant that generates your power. The distribution utility buys from one to many sources to keep the grid fed with power based on demand. Plants like nuclear power plants provide the stable base load in most cases. Some gas and even coal plants do the same in some areas. More gas and coal plants are fired up as “peaking plants” as demand rises and falls throughout the day.

The price you pay is based on the average of all sources used by your distribution company and is regulated by the PUC. The distribution company makes no money on the electricity it purchases by PUC regulation. It’s a straight pass through. The monthly flat rate customer charge and the other distribution charges on the bill cover their costs and generate their profit. The profit is also regulated by the PUC as part of the rate making process.

The only way to sort of get close to picking your generating source is to buy from a “green” supplier. But even many of these turn out to be scams.