In Texas, Your Rooftop Solar Pays Back Only What Your Retailer Decides

I. How a backward-spinning meter gets priced here

Say you spent the spring bolting panels to a roof in Oak Forest, or Pearland, or a townhome off Washington Avenue. By August the array is doing its job: on a clear afternoon it makes more power than the house can use, and the surplus flows back out through the CenterPoint meter toward the grid. The obvious question is what that surplus is worth.

Most states answer that with a rule called net metering (where the utility credits exported power at the same retail rate you pay for it). Texas has no such statewide rule. The Public Utility Commission of Texas (the state agency, PUCT, that oversees the retail electricity market) does not require your provider to buy back a single kilowatt-hour, let alone at a set price. That leaves the value of your exports where most things in the Texas power market end up: in a contract.

II. The wires, the retailer, and who actually credits you

Start with the hardware. In the Houston area, CenterPoint Energy owns the poles, the wires, and the smart meter on your wall, but it does not sell you electricity. It is the transmission and distribution utility (the regulated company that delivers power and reads the meter), and it reports both of your flows, the energy you pull in and the energy you push out, to whichever retail electric provider (the company that sells you power, often shortened to REP) you chose.

What happens to that exported number is the whole game. A true net metering state nets the two flows against each other before billing, so a kilowatt-hour out cancels a kilowatt-hour in. Texas instead leaves most providers on a net billing approach (exports credited separately, often at a lower rate than you pay), and the credit is whatever the plan says. Some buyback plans credit exports at roughly the full retail energy rate. Others credit a fraction of it, cap how much they will buy each month, or pair a generous credit with a higher base charge, so the buyback giveth and the energy rate taketh away.

III. The honest math before you sign

Run your own numbers, because the headline credit rate is only half the story. A plan advertising a strong export credit may bundle it with a higher per-kilowatt-hour energy charge, a monthly base fee, or a minimum usage requirement that a solar home will struggle to meet. The figure that matters is your net bill across a full year, not the sweetest line on the marketing page.

The document that lets you compare like with like is the Electricity Facts Label, the standardized one-page disclosure the PUCT requires every REP to publish for every plan. Read the buyback terms there, not in the ad: the credit rate, whether it applies to all exports or only up to your monthly usage, and whether the rate is fixed for the contract term or can reset. If the label is vague about solar, call and get the answer in writing before the term starts.

IV. Who sets the price, and where to check it

Map the players and the picture clarifies. The PUCT runs Power to Choose, the official state shopping site where you can filter retail plans, some of which flag solar buyback options. ERCOT, the grid operator that runs the Texas power market for about 90 percent of the state's load, sets the wholesale backdrop that providers price against, but it does not set your retail credit. Your REP sets that, and your contract locks it in.

In practice, confirm your home is in the competitive market first (most of Houston is, though pockets served by municipal utilities or co-ops are not), then pull the Electricity Facts Label for any plan you are weighing and compare its buyback terms against your expected summer surplus. If you already have panels and your current plan credits little or nothing, shopping at renewal is the one lever you actually control.

V. Worth watching this month

1. Your own contract's renewal date, since that is the single moment you can switch to a better buyback plan without an early-termination fee.

2. The Power to Choose listings, which add and drop solar buyback plans through the year as providers revise their offers.

3. Any renewal notice from your current REP, because the buyback credit can change at the start of a new term even when the plan name stays the same.

4. ERCOT's summer demand outlook, routine most years, but worth a glance because high summer prices are what make providers more or less generous on buyback.

5. PUCT open meetings, where retail market rules touching distributed solar occasionally come up, most items routine but a few consequential.

Sources of record

1. Public Utility Commission of Texas (PUCT), state regulator, The agency that oversees the competitive retail market; rules, consumer resources, and the complaint process., www.puc.texas.gov
2. ERCOT, Texas grid operator, Runs the grid and wholesale market for most of the state; grid conditions and seasonal demand outlooks., www.ercot.com
3. Power to Choose, official PUCT shopping site, The state's plan comparison tool, where you can filter offers and spot some solar buyback plans., www.powertochoose.org
4. CenterPoint Energy, Houston-area delivery utility, Owns the wires and the smart meter and reads your two flows; service area and outage maps., www.centerpointenergy.com
5. PUCT consumer resources and Electricity Facts Label guidance, Explains the standardized one-page label every retail plan must publish and how to read it., www.puc.texas.gov/consumer