July 2018 data, the latest available, show that the average U.S. price – 13.12 cents per kilowatt hour (kWh) – was down 0.7% compared with a year ago. If you live in Louisiana, you pay the lowest average residential electricity rates of any state in the country – 9.37 cents per kWh. The next lowest rate is in Washington, where residents pay an average of 9.79 cents per kWh.

A feed-in tariff (FIT) is an energy-supply policy that supports the development of renewable power generation. FITs give financial benefits to renewable power producers. In the United States, FIT policies guarantee that eligible renewable generators will have their electricity purchased by their utility.[2] The FIT contract contains a guaranteed period of time (usually 15–20 years) that payments in dollars per kilowatt hour ($/kWh) will be made for the full output of the system.
Prices for any single class of electricity customer can vary by time-of-day called TOU or time of use or by the capacity or nature of the supply circuit (e.g., 5 kW, 12 kW, 18 kW, 24 kW are typical in some of the large developed countries); for industrial customers, single-phase vs. 3-phase, etc. Prices are usually highest for commercial and residential consumers because of the additional costs associated with stepping down their distribution voltage. The price of power for industrial customers is relatively the same as the wholesale price of electricity, because they consume more power at higher voltages. Supplying electricity at transmission-level high voltages is more efficient, and therefore less expensive.
3.     Customer service:  When the only utility available has lousy customer service, nobody is surprised.  They don’t even pretend to care – they know they have you over a barrel.  With all these new players in town, however, it’s a slap in the face to be treated like royalty until you’ve signed on the dotted line and now they won’t even return your calls or the person on the phone can’t string three English words together or if he does speak English, he’s brand new and panicking trying to pull up your account information.
Fixed-rate, long-term (contract) plans provide stability in electricity rates. If market energy costs suddenly trend upward where you live, you can rest assured that you won’t have to pay more out of pocket. However, if you want to switch to a different, lower-cost plan before the end of the contract term, you’ll likely have to pay a cancellation or early termination fee.