Another unwelcome side effect of not knowing your average monthly kWh usage level is that you may end up paying more than you expect. This can occur when a customer inadvertently shops an electric rate based on a higher usage level than they actually use. Electricity suppliers commonly advertise their electric rates associated with the highest (2000 kWh) usage levels since those tend to be the lowest rates.
Even though customers in deregulated Texas markets routinely pay more for electricity, there is a bright spot. The gap between the average price paid for electricity between deregulated and regulated market has shrunk to 8.8 percent. In 2006, customers in deregulated cities were paying nearly 47 percent more for electricity than their counterparts in regulated cities.