Texas Electricity Deregulation, Explained

Most Americans don't shop for electricity. They get a bill from whatever utility happens to serve their address — Con Edison, PG&E, Duke, Florida Power & Light — and that's that.

Texans shop. About 85% of Texas residents can pick from dozens of retail electricity providers, all selling competing plans for the same physical electricity.

That's deregulation. Here's what it actually changed, what it didn't, and what it means for your bill.

What deregulation did

In 1999, the Texas Legislature passed Senate Bill 7, the Electric Choice Act. It took effect January 1, 2002. The bill did three things:

Split the monopoly utilities into three pieces. Companies that used to do generation, transmission, and retail under one roof had to spin those businesses apart. Generation became competitive. Transmission and distribution (TDUs) stayed regulated. Retail became a new layer where companies could compete for residential customers.

Created the retail competition market. Any company meeting PUCT licensing requirements could sign up customers and sell them an electricity plan. The result, over the next decade: dozens of Retail Electric Providers competing for residential business.

Designated ERCOT as the grid operator. ERCOT, originally a coordinating body for utilities, became the official market operator and reliability coordinator for the deregulated portion of Texas.

The change was meant to do for electricity what airline deregulation did for air travel: lower prices through competition, give consumers choice, force utilities to compete on something other than being the only option in town.

What deregulation did not do

It did not make Texas electricity uniformly cheap. Average Texas residential rates have tracked national averages over the 20+ years since deregulation. The savings come from informed shopping — picking the right plan for your usage — not from the deregulated market being inherently cheaper.

It did not eliminate utility monopolies. The TDU that owns your wires is still a regulated monopoly. You can't shop the company that delivers your power, only the company that sells it to you. Your TDU charge is identical no matter which REP you pick.

It did not cover all of Texas. The deregulation law applied only to areas previously served by investor-owned utilities. Municipal utilities (Austin Energy, CPS Energy in San Antonio, Garland Power & Light, and a handful of smaller ones) stayed regulated. Electric cooperatives stayed cooperative. About 85% of the state was deregulated initially; the share has grown slightly as municipal utilities opt in — most notably Lubbock Power & Light, which joined the ERCOT competitive market in 2023 and now shops the same way Houston or DFW does.

It did not protect customers from market crises. Winter Storm Uri in February 2021 was the clearest demonstration. Customers on variable-rate or indexed plans saw bills 10x normal. The deregulated market design didn't insulate residential customers from wholesale price spikes — it required them to choose plans that did.

The map: who can shop, who can't

If you live in Dallas-Fort Worth, Houston, Corpus Christi, Tyler, McAllen, the Permian Basin, or any of hundreds of smaller Texas cities served by an investor-owned TDU, you can shop. You'll see dozens of plans from dozens of REPs.

If you live in Austin, San Antonio, El Paso, Lubbock, or Garland, you can't. Your service is provided by a municipal utility on a regulated rate structure. There's no "switching" — there's only one option in town.

The split looks weird on a map: Austin (a major Texas city) doesn't shop, but suburb cities one ZIP code away do. That's not a quirk of geography — it's about which entity owned the wires before 2002. Investor-owned wires became deregulated. Municipally owned wires didn't.

Co-op territories (rural electric cooperatives serving large parts of rural Texas) work similarly to municipal utilities. Some co-ops have opted into retail competition; most haven't.

How shopping actually works

In a deregulated zone, electricity arrives at your house the same way it would in a regulated market — wires owned by the TDU, electrons generated at one of hundreds of power plants. What changes is who bills you.

You sign up with a REP. The REP files your account with the TDU. The TDU starts reading your meter and reporting usage to the REP. The REP bills you monthly, including:

• Their own energy charge (this is what's competitive)
• Pass-through TDU delivery charges (not competitive — same for everyone)
• Any base charge, bill credits, or fees specific to your plan

When you switch REPs, the TDU swaps which REP gets your meter readings. Your service doesn't interrupt. Your meter doesn't change. The wires don't change. Only the company that bills you changes.

The whole switch typically takes 1–3 business days. There's no technician visit. There's no service interruption. You don't even have to call your old REP — the new one handles the paperwork.

That ease of switching is the deregulated market's main argument for itself. Whether you actually save money depends entirely on whether you shop.

Is competition actually saving Texans money?

This is the contentious question.

Studies by groups like the Texas Coalition for Affordable Power have argued deregulation hasn't delivered the savings it promised — average residential rates in Texas since 2002 have tracked or exceeded the national average.

REP industry studies and PUCT analyses tend to argue the opposite — that informed shoppers find rates substantially below the national average, and that retail competition has driven innovation in plan structures (green options, free-nights plans, prepaid).

Both are right, in different senses.

If you sign up for the first plan you see, or roll onto a month-to-month rate when your contract expires, deregulation has probably cost you money — Texas rates without informed shopping run high.

If you shop carefully — read EFLs, time your contracts, pick fixed-rate, switch on schedule — you can land in the 8–11¢/kWh range, well below the national average for residential power.

Deregulation delivered the option. It didn't deliver the savings automatically. The market structure assumes you'll do the work.

What the REP marketplace actually looks like

About 130 active REPs serve residential Texas customers as of 2026. They range from large national brands (TXU, Reliant, Direct Energy) to mid-tier independents (Gexa, Rhythm, Energy Texas) to smaller specialty operators (prepaid, no-deposit, charity-tied, time-of-use).

Most REPs are technically resellers — they don't own generation; they buy electricity wholesale from generators and resell it under their brand. A few are vertically integrated subsidiaries of generation companies (the NRG family of brands, for example). The PUCT licenses all of them.

Quality varies. Some REPs are operationally excellent — clean billing, responsive customer service, transparent plans. Others have histories of billing disputes, surprise rate hikes at contract end, and aggressive sales practices. The PUCT publishes a complaint scorecard that breaks it down by REP and category.

The market doesn't filter out the bad operators automatically. That's the shopper's job.

What this means for your bill

If you're in a deregulated Texas zone:

• You can save money by shopping. Most Texans who never re-shop are paying meaningfully more than they have to.
• The savings come from matching the plan to your usage and from timing the contract well (lock in November, not August).
• The TDU charge — about a third of your bill in most cases — is fixed. You're shopping the energy charge, which is maybe two-thirds of the total.
• A bad plan choice can cost you more than a good plan choice can save. Picking a bill-credit plan you'll miss the threshold on, or rolling onto a month-to-month variable rate, costs more than picking the wrong "best" plan from a list of decent options.

If you're in a regulated Texas zone (Austin, San Antonio, etc.):

• You don't shop. Your bill is whatever the utility charges. You can still reduce usage to lower the bill, but you can't change the rate.

The honest close

Deregulation is a structure, not a result. Texas built a market where the savings exist if you find them — and the losses exist if you don't.

The market's existence doesn't help you. Reading EFLs, comparing at your actual usage, picking plans with clean structures, and re-shopping at contract end — those help you. The deregulated framework is what makes them worth doing.

Compare. Lock. Re-shop. That's the loop.

» MORE: What is ERCOT? · How to choose a provider