You can also try the natural way by making use of natural light throughout the day instead of your artificial lighting. During daytime, let natural light enter your residence to illuminate it and artificial lighting at night.
Energy rates in Texas typically are quoted between 4.63 to 14.10 cents a kilowatt hour depending on the state of the market and your location - these rates cannot be guaranteed and are only used as examples.
Renewable power sources will probably be the most important thing that you need to consider because it can substantially decrease your monthly energy bills. As you may know, only the renewable power options can greatly impact your regular bills because it has the ability to lessen your bills to half. You should the renewable sources at night and your existing energy supply should be used during daytime. It is a fact that renewable power options may be a tad expensive when you decide to install it, but this will probably be a great decision over time. It's always well worth the money so you should try these out.
Most people do not really pay too much attention on lighting as they believe that your light bulbs are not taking in plenty of energy. Lights can have a large effect on your monthly bills as they can up lots of energy if they're used often. If you have been utilizing incandescent bulbs, substitute them with CFL or LED bulbs immediately.