Off the Kuff Rotating Header Image

Dan Wallach: Energy pricing 2012

This is a guest post that follows up on an earlier guest post.

Dan Wallach

Last year, I wrote a guest article for Off The Kuff where I discussed the complexity of trying to get a good price on your electric bill. In Houston, we have seemingly hundreds of companies who will gladly take our money in return for electricity. Which should you choose? The place to begin remains, but the market has changed a bunch from when I last took a look.

If you really dig around PowerToChoose, you’ll see all these companies you’ve never heard of, each of which has a piece of clip-art on its web page of a beautiful meadow with a shining sun, or maybe a happy family with perfect teeth. (Exercise for the reader running the Chrome browser: you can right-click on those pictures, and select “Search Google with this image”, and see how widespread those stock images are used. In one case, the smiling family I saw also appeared in web sites for a car dealership, a dentist, a youth ministry, a nutrition supplements company, and an alarm system company.)

Last year, it was common for these companies to offer low teaser rates for the first month that bubbled them up to the top of the list. You’d then pay the regular higher rate thereafter. This made it very difficult to do comparison shopping, since you had to dig deeper into the “electricity facts label” sheets to find out what the real prices were. It also created a huge incentive for you to switch companies every month.

At the time, I decided to switch to Pennywise Power, who was advertising a relatively low variable rate. I was entirely happy with them until this July, when their prices exploded. My bill for June was $197.99 for 1873 kWh ($0.105 per kWh, after taxes, fees, and such). My bill for July was $289.78 for 1662 kWh ($0.174 per kWh). It’s come back down again, but at least for two months, they were charging far above other companies’ advertised rates. (Note: the wholesale market for electricity went bonkers at the end of June, and some of that was clearly passed on to me.)

My conclusion last year was that Pennywise’s rates were low enough to be attractive, but I apparently failed to notice my own warning:

“Variable rates” aren’t connected to much of anything beyond the whims of the executives who set these rates. If you read the legal verbiage closely, they can change your rate, at any time, to any price they want.

After seeing the shocking July bill, I figured it was time to jump into a fixed rate product, so back I went to and slogged through the various options. These days, the low teaser rates from last year are all gone. Now, the advertised price seems to be the price you actually pay, but things are still a bit wonky. One of the tricks I observed with Pennywise is that their pricing, which included a $9.95 “base charge” if you use less than 1000 kWh, creates some perverse incentives if your electrical usage is just below that number per month. Wasting energy to get over the top might save you real money! This year, I resolved to find the best fixed price with zero “base” charge. That led me to Summer Energy, where I inked a one year lock-in at $0.093 per kWh. (If you sign up today, with the proper promotion code, it’s $0.085 per kWh.) My first bill showed up for the back half of July, and it included a $4.89 base charge! I had to threaten to abandon them if they didn’t fix it, and they eventually came around.

So, what have we learned here? First, when you’re doing business with faceless companies who advertise low rates, you might expect to have unexpected charges and unusual behaviors. (Summer Energy still hasn’t sorted out my request to set up automatic credit card payment.)

Second, this “deregulated” market could stand to have more regulation. If you read the electricity fact sheets that our vendors are required to publish, there’s a remarkable amount of diversity among them, and lots of fine print they leave out. If I were king for a day, all of these fixed “base rate” fees would be standardized, simplifying vendor competition to price per kilowatt-hour within equivalence classes of different percentages of “renewable” energy.

Finally, a word about the future. A buddy of mine in California got himself a fancy solar panel system on his house. He sells excess capacity back to the grid, but it’s much better than that. His electric utility company (for which he has no choice) has tiered rates. The more electricity he burns, the more he pays. But by selling power back, he stays out of the higher rate tiers. He also gets tax credits and other incentives that aren’t available in Houston; some other Texas utilities offer rebates, but Centerpoint has nothing in our area. In theory, with our shiny new smart meters, we could have some all kinds of sophisticated billing policies like variable day/night rates or solar systems that let you sell power back to the grid, but these aren’t happening yet. I suspect this is an unfortunate side effect of our multi-vendor deregulated market. (Reliant does have a plan that lets you sell power back, but the base electrical rate is uncompetitive.)

If you dig deeper into your electrical bill, you’re paying a big chunk of your bill to Centerpoint for “delivering” your electricity, no matter who you’re paying for your juice. That’s the place where we might eventually see some innovation. Centerpoint could charge variable time-of-day or tiered rates, they could buy back your electricity if you have solar, and so forth. One of these days, I might buy myself an electric car, and I’d be keen to have more sophisticated electrical pricing in place before then.

Dan Wallach is a professor of computer science at Rice University.

Related Posts:


  1. “Perverse incentives” indeed. With all the caterwauling about being short of capacity, the industry ought to find a way to reward people who reduce their demand. As it is, the ones with the bigger footprints get the best price. Besides picking my own plan, I wish I could pick out one of those twenty-seven-cents-per kilowatt doozies for my State Rep.

  2. B. K. Oxley (binkley) says:

    Great post, thanks.

    The “base charge” covers the base load of the power grid, if I infer correctly. These are sources of electricity which cannot be switched off or are costly to do so, so need to be paid for even when not needed. Examples include nuclear or coal. (Coal comes into play because it takes many hours to heat the system from dead cold to a usable state, and are usually left idling, especially in summer. In summer spikes in the power grid require that backup generation be always available, so you cannot turn off the coal plants without risking blackout.)

    These kinds of charges originate with the ISO (“independent service operator”) which a non-profit that manages the power grid. In Texas that would be ERCOT. ERCOT’s chief mandate is grid reliability.

  3. Robert Nagle says:

    Just wanted to mention. When I read your article last year, I had a 100% green plan fixed rate for 12 months for 9.3 cents a kilowatt (with Tara). When the company contacted me about renewing, they offered me 8.8 cents a kilowatt for another 12 month green plan. (It’s now 10.4 cents).

    Another point which needs to be said. The no-name electric companies often require hefty deposits, even for people with good credit.