Here are my 2 cents about electric companies when shopping around for the best rates. Currently, the average cents/kWh in Houston is 10 cents, after speaking to a very helpful, very informative Green Mountain Energy representative. Although their rates are a little higher than my current rates, they have FANTASTIC customer service (which is almost worth it). The GME rep even recommended that I stick with what I am using now since it's cheaper.

The increase in retail rates come as companies prepare for surging prices in the wholesale electricity markets where they buy their power. Forecasts of higher than normal temperatures and record power demand are coinciding with the shutdown of at least three coal-fired plants, leading to concerns that temporary shortages on the hottest summer days could send wholesale prices, which typically average less than $50 per megawatt hour, spiking to $3,000 per megawatt hour or higher. (A megawatt hour is 1,000 kilowatt hours.)
The cheapest rates are going to have shorter contract terms. For instance, a 3 month term is cheaper than a 6 month term and a 6 month term is cheaper than a 12-14 month term. So if you are able to remember to call before your contract expires (they will notify via mail you that your contract is about to expire), then the 3 or 6-month term is your best bet. If you don't call to renew/cancel, you will be charged a much higher variable rate on a month-to-month basis. If this is you, sign for a 12-month contract term with the cheapest rate.
The average prices shown in these calculations represent average annual prices per kilowatt-hour (kWh). Some REPs charge rates that vary by season or usage level. As a result, the actual average price listed on a customer's bill for any given month may differ from that listed here, depending on the usage of the customer and the actual rates charged during that month. Please see the REP's Terms of Service document for the actual rates that will be charged by the REP.
If you live in the greater Houston area, there are over 60 different energy suppliers competing for your business. Many of these providers have websites that are confusing and difficult to navigate, their rates buried in misleading advertising and dense jargon. Who has the time to sort through and keep track of options across all these different sites?