On the one hand, long-term, fixed-rate (contract) plans offer stability in pricing. If energy supply costs suddenly go up in your area, you won’t be left paying more than what you bargained for. You’ll have peace-of-mind. If you want to switch out of your contract before it ends with a lower cost plan, you’ll likely face a cancellation fee (early termination fee).
A major question point when considering whether or not switch electricity providers is "What will happen to electric rates?" This can be a tricky question to answer as rates are continuously in flux. In the short-term it's impossible to know exactly what will happen to rates but when looking at a longer term picture things become a bit clearer. Based on the graph above, electric rates in Texas have generally been increase over the past decade. Assuming this trend continues, the best way to protect yourself from increasing rates is to switch into a 12 month or 24 month plan and lock into a low rate.
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.