Variable Rate Plans: Designed as month-to-month contracts, these plans are in total control of your energy provider, which can shift the price you pay per kWh at its discretion. This means you, the consumer, are in a better place to reap the benefits when the energy market falls — but it also means you're at risk for hikes in prices, whether as a result of natural disasters or the provider's bottom line. Variable plans always offer a full year of price history to show the average price per kWh so you can get a sense of what you're getting into (like this one from Reliant) and know this: Variable plans don't have cancellation fees. You can cut your service at any time — a huge incentive for REPs to keep their prices reasonable.
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.