As a result, 85% of Texas power consumers (those served by a company not owned by a municipality or a utility cooperative) can choose their electricity service from a variety of retail electric providers (REPs), including the incumbent utility. The incumbent utility in the area still owns and maintains the local power lines (and is the company to call in the event of a power outage) and is not subject to deregulation. Customers served by cooperatives or municipal utilities can choose an alternate REP only if the utility has "opted in" to deregulation; to date, only the area served by the Nueces Electric Cooperative has chosen to opt in.
The Electric Reliability Council of Texas (ERCOT) does it for you. When you sign up for a plan with a new provider, ERCOT will send you a mailer confirming the switch. You have three days upon receiving the mailer to change your mind. If you don't, you'll have a new provider within seven days, and ERCOT will notify your old provider. Just remember, if you abandon a contract before it's complete, you will be on the hook for any fees or penalties detailed in its Terms of Service.
In this free market competing electricity retailers buy electricity wholesale from private power generators to sell at retail to around 85% of Texas residents. The partnership between generators and retailers is governed by the Electric Reliability Council of Texas, or ERCOT, which attempts to balance the power grid’s electricity supply and demand by purchasing small amounts of electricity at 15-minute intervals throughout the day.