Despite the fact that Texas sees much higher temperatures year round, most households contain and use heating units. These units generate heat in one of four ways: other, propane, electricity and natural gas. Just over half of households in Texas use electricity to run their heating units. This is a much greater average than the overall average for the nation.
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.