REPs sell electricity rates to Houston energy consumers, but transmission and distribution service providers (TDSPs) deliver the supply of electricity. In Houston, CenterPoint Energy serves as the area's TDSP and works with about 85 REPs. If your power goes out, immediately report the issue to CenterPoint Energy, not your REP. Use the following phone numbers to get in touch with your Houston TDSP.

Usually, fixed-rate renewable-energy plans are among the most expensive options. But in our research, we found Constellation’s green plan rates were comparable to its non-green versions. For example, out of two otherwise identical fixed-rate, 12-month plans from Constellation — “12 Month Fixed Rate 100% Green” and “12 Month Fixed Rate” — it’s the renewable version that currently costs less.
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Reliant offers a variety of electricity plans at rates that fit your needs and lifestyle. Whether you’re a sports fan or world traveler, you can get rewards and bonuses along with your electricity plan. We run special promotions throughout the year and offer plans that let you save money when you use electricity on the evenings or weekends. If you're looking for an environmentally-conscious option, check out our wind power, solar power and solar sell back plans. 

In some states, utilities can also generate and sell electricity, but customers aren’t forced to buy the electricity from the utility company. They may choose from either the utility or available electricity providers. Before signing up for electricity service, we recommend checking the local utility’s electricity supply rate by checking their rates online or contacting them directly.


Fixed-rate, long-term (contract) plans provide stability in electricity rates. If market energy costs suddenly trend upward where you live, you can rest assured that you won’t have to pay more out of pocket. However, if you want to switch to a different, lower-cost plan before the end of the contract term, you’ll likely have to pay a cancellation or early termination fee.
*Qualifying purchases. 1 membership per 12 months. Meerkat Meals – 2 for 1 on equivalent starters, mains and desserts. Cheapest free. Sunday to Thursday. Participating restaurants. Booking required, max 6 people. Excl Kids meals, drinks and certain days. App only. Meerkat Movies – 2 for 1 on Tuesday or Wednesday. Participating cinemas. Standard tickets only. Cheapest ticket free. Please note your claim may take up to 48 hours to validate. Rewards T&Cs apply
REPs sell electricity rates to Houston energy consumers, but transmission and distribution service providers (TDSPs) deliver the supply of electricity. In Houston, CenterPoint Energy serves as the area's TDSP and works with about 85 REPs. If your power goes out, immediately report the issue to CenterPoint Energy, not your REP. Use the following phone numbers to get in touch with your Houston TDSP.

Electricity or Gas Supplier License/Order #s: CA 1359, CTA0006, CTA0032; CT 01-06, 06-07-11, 06-02-17; DE 00-162; DC GA2012-12, GA06-2, EA01-5, GA 11-5, EA 06-5-4, GA03-5; GA GM-46; IL 02-0489, 03-0320, 16-0205,17-0330, 07-0498; IA G-0010; ME 2000-989, 2002-64; MD IR-3645, IR-655, IR-311, IR-500, IR-3644, IR-228; MA GS-053, GS-030, CS-015, CS-045; MI U-14066, U-14867, U-13660, U-13245; NE NG-0043; NH DM 17-024; NJ GSL-0074, GSL-0101, ESL-0016, ESL-0066, GSL-0132, GSL-0099, GSL-0150, ESL-0171; OH, 09-153G, 00-003E, 00-013E; OR ES4 (12-162); PA A-2016-2542899, A-125095, A-110036, A-2016-2547424, A-110110; RI 2379(Z1), D-96-6(E); TX 10014; VA G-26, G-34, G-36, G-51, E-11A
Electricity or Gas Supplier License/Order #s: CA 1359, CTA0006, CTA0032; CT 01-06, 06-07-11, 06-02-17; DE 00-162; DC GA2012-12, GA06-2, EA01-5, GA 11-5, EA 06-5-4, GA03-5; GA GM-46; IL 02-0489, 03-0320, 16-0205,17-0330, 07-0498; IA G-0010; ME 2000-989, 2002-64; MD IR-3645, IR-655, IR-311, IR-500, IR-3644, IR-228; MA GS-053, GS-030, CS-015, CS-045; MI U-14066, U-14867, U-13660, U-13245; NE NG-0043; NH DM 17-024; NJ GSL-0074, GSL-0101, ESL-0016, ESL-0066, GSL-0132, GSL-0099, GSL-0150, ESL-0171; OH, 09-153G, 00-003E, 00-013E; OR ES4 (12-162); PA A-2016-2542899, A-125095, A-110036, A-2016-2547424, A-110110; RI 2379(Z1), D-96-6(E); TX 10014; VA G-26, G-34, G-36, G-51, E-11A

Know that Green Mountain’s cheapest advertised plans are all variable rate plans. “Pollution Free,” “Pollution Free Try 3,” or “SolarSPARC 10 Try 3” all advertise a great initial rate — a full cent below Pennsylvania’s 8.49 cent “price to compare” — but its variable rates means the company can raise them at any time. The two “Try 3” plans just lock in the low introductory rate for three months instead of one. The flipside of fixed rate: Should prices fall, you’ll be locked into a contract with a constant, elevated rate for two more months.


Switching electricity supplier could shave pounds off your bills. But it’s not always about how much hard cash you could save. You might be fed up with poor customer service, you might want greater visibility of your usage through an app or you might want to choose your supplier based on their green credentials, or whether they supply a smart meter.

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?
The mid to late 1880s saw the introduction of alternating current (AC) systems in Europe and the U.S. AC power had an advantage in that transformers, installed at power stations, could be used to raise the voltage from the generators, and transformers at local substations could reduce voltage to supply loads. Increasing the voltage reduced the current in the transmission and distribution lines and hence the size of conductors and distribution losses. This made it more economical to distribute power over long distances. Generators (such as hydroelectric sites) could be located far from the loads. AC and DC competed for a while, during a period called the War of Currents. The DC system was able to claim slightly greater safety, but this difference was not great enough to overwhelm the enormous technical and economic advantages of alternating current which eventually won out.[1]
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