It all starts with the power generators – the companies who produce electricity to sell on the wholesale market. The electricity providers purchase the rights to large volumes of this electricity from the generators on the wholesale market and then turn around and sell it to their retail customers. The electricity providers market the sale of electricity to the public through various offerings of electricity plans that include everything from classic fixed-rate electricity, to 100% green electricity, to bundled products that have incentives such as a Nest Learning Thermostat™ or Visa gift cards.
Deregulation allows you to choose from a variety of retail electricity providers, much like you’d shop around for a telephone or internet provider. When choosing an electricity provider, the process is completely hassle-free. You will not have any service interruptions, your electricity will still be just as reliable as before, and your monthly bill will continue to arrive. If your power goes out, your utility will still be the one to call. The only change will be under the supply portion of you bill. There, you will see the provider you selected and the rate you approved.
Retailers Include: AEP Energy , APG&E Energy Solutions , Calpine Energy Solutions , Constellations NewEnergy, INC , Crius Energy , Direct Energy Services LLC , Dynegy , ENGIE Resources , Entrust Energy , IGS Energy , Just Energy , Liberty Power , Next Era Energy Services , Nordic Energy Services, LLC , NRG Energy INC , Source Energy , Spark Energy , Starion Energy , Stream Energy , Talen Energy , TransCanada Power Marketing LTD. 
Switching electricity supplier could shave pounds off your bills. But it’s not always about how much hard cash you could save. You might be fed up with poor customer service, you might want greater visibility of your usage through an app or you might want to choose your supplier based on their green credentials, or whether they supply a smart meter.