Electricity is a competitive marketplace where you can choose your supplier, and they all have different prices.  Over the years federal and state Utility Regulatory Commissions have deregulated the sale of commercial power to the end users to eliminate the monopolization of electrical power.  Much of that deregulation has cut the cost of producing power by allowing different generation grids to be connected and level out the peak loading for a power plant that increases the cost of electricity.

Deregulation led to wholesaling electricity to a new breed of resellers formerly known as "Co-Ops".  Typically the retail price a homeowner pays for electricity is about double the wholesale price a reseller pays.  Buying power from a reseller can be compared to buying products from a discount shopper's club like Sam's or Costco.  They take the frills out of the brick & mortar and corporate bureaucracy and generally can save you money.  As a competitive business they will often offer an attractive sign on rate for a 1 year contract, then after that year is up, they tend to increase prices.  The electricity they provide comes from the same generators and is distributed to your home on the same wires that everyone else uses.  All they really do is read your meter and send you a bill. 

Try doing a Google on Electricity Resellers in Your City and get a list of Resellers in your area.  At the time this was written, the prices of electricity in the Dallas area ranged from 8.5 - 13 cents per Kilowatt-Hr for exactly the same thing.  You may want to consider changing your reseller annually to the lowest bidder.  A savings of $50 a months works out to $600 a year and only takes about an hour to do the research and make the switch.

In comparing costs it's important to consider how most resellers work.  They know that they are competing for your business, and like all utilities they know people don't like to make changes with suppliers unless they have to.  If you want to save money, you have to change.  Be sure to let them know that you will not do business with them if the charge a connection fee, and will not consider paying a disconnection fee after the terms of the contracted price is complete.  Most if not all will waive these fees up front because they only add them to penalize the customer.  Truth be told the connection and disconnection service takes about a minute in a database.