As they’re advertised, the Digital Discount plan appears to save you $4 — but only if you use 32 percent of your energy on the weekends, which is the stat Reliant used to create the average price it advertises. Say you often travel for business during the week, and are only home cranking the air conditioner on weekends. If your energy use skews to 55 percent weekend use (for Reliant, that means 8 pm on Friday through 12 am Monday), suddenly Truly Free Weekends becomes a much better deal.
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.