High Usage Homes: Which Texas Plan Actually Costs Less

If you run a big house, a pool pump, two ACs, or an EV charger, the plan that wins the "cheapest ¢/kWh" sort on a shopping site is often not the plan that wins on your July bill. High-usage homes do not just buy more electricity—they amplify every quirk in how Texas plans are priced, disclosed, and compared. The cheapest option is usually the one whose all-in price stays low at your kilowatt-hour (kWh) level, not the one that looks prettiest at exactly 1,000 kWh.

This guide is for households and small businesses shopping, switching, renewing, or starting service in deregulated Texas, with notes for choice markets such as parts of Ohio and Maryland and for regulated utility territories. The goal is practical: which plan structures tend to cost less when usage is high, and which "bargain" designs fall apart once the meter climbs.

What "high usage" means in Texas numbers

"High usage" is relative, but Texas already sits above the national average. According to the U.S. Energy Information Administration's 2024 residential average monthly bill data, Texas households used about 1,096 kWh per month on average, at 14.94 cents/kWh, for an average bill of $163.72. The U.S. average was 863 kWh, 16.48 cents/kWh, and $142.26. (¹)

So a Texas home at 1,500–2,000+ kWh in summer is not exotic—it is a large house behaving like Texas weather expects. Cooling is a major driver nationally as well: the U.S. Department of Energy has estimated that space cooling accounts for about 6% of average household energy use, while two-thirds of U.S. homes have air conditioning, and duct losses alone can waste roughly 30% of a cooling system's energy. (²) In hot climates, the electricity share devoted to AC is often much higher than that national all-fuel average, which is why Texas summer bills stretch far above shoulder-season months.

Power to Choose—the Public Utility Commission of Texas shopping site—explicitly tells shoppers to estimate average monthly usage from past bills and remember seasonal spikes, calling out months like August and February. (³) For high-usage homes, that means you should rank plans at peak months, not at a polite annual average that never shows up on the meter.

Anatomy of a Texas bill: what you shop vs what you cannot escape

In competitive areas, you choose a Retail Electric Provider (REP)—the company that sells you energy and sends the bill. Your local wires company, called a Transmission and Distribution Utility (TDU) or Transmission and Distribution Service Provider (TDSP), still delivers power, reads the meter, and fixes outages. Power to Choose puts it plainly: deregulation changed who sells electricity, not who delivers it. (⁴)

Oncor, one of the major TDSPs, describes the split the same way: REPs market and bill; TDSPs deliver and meter. Four TDSPs operate in deregulated zones—Oncor, CenterPoint Energy Houston Electric, Texas-New Mexico Power, and AEP Texas—and the TDSP bills the REP for delivery, which the REP passes through to you. (⁵) Residential delivery includes fixed monthly pieces (customer and metering charges) plus variable per-kWh charges. Oncor also notes that delivery charges often look "high" simply because usage is high—summer air conditioning or winter electric heat. (⁵)

The PUC publishes residential TDU delivery summaries. As of its September 2026 snapshot, for example, average residential delivery bills at 2,000 kWh ranged from about $118.91 (AEP Central) to $155.89 (TNMP), with CenterPoint around $133.16 and Oncor around $124.65—before adding the REP's energy charges. (⁶) For high-usage homes, that wires stack is not optional and does not change when you switch REPs. Shopping only changes the energy and retail-fee layer sitting on top.

The PUC's bill explainer lists the recurring pieces you may see: energy charge, base charge, meter charge, TDU delivery charges, surcharges, and more. (⁷) A ⁸ is a flat monthly fee regardless of kWh used. At 2,000 kWh, a $10 base charge is only half a cent per kWh; at 500 kWh it is 2 cents. High users dilute fixed retail fees—and pay more absolute dollars on volumetric delivery.

The three EFL columns: why 2,000 kWh is your real scoreboard

Every competitive plan must publish an Electricity Facts Label (EFL)—a standardized sheet covering prices, fees, and contract terms so customers can make an apples-to-apples comparison. (⁸) Residential EFLs show average price in cents per kWh at 500, 1,000, and 2,000 kWh. Comparison tools surface those same checkpoints because providers must calculate them that way. (⁹)

Those averages are modeled all-in figures at each usage band, folding in recurring charges (with certain taxes excluded). (¹⁰) That is why the columns jump. A bill credit that unlocks near 1,000 kWh can crush the middle number, then look weaker at 2,000 kWh once the same dollar credit is spread over twice as many kilowatt-hours—or disappears above a usage band. (⁹)

For high-usage homes, the decision rule is blunt: weight the 2,000 kWh column first, then stress-test what happens above it. WattKarma flags the 2,000 kWh checkpoint as the one that maps to Texas summer cooling and notes that the same plan can look very different across the three bands. (¹¹) If a plan only wins at 1,000 kWh because of a usage credit, it is often a trap for a house that spends half the year above 1,500 kWh.

Fixed, variable, and time-of-use: which structure usually costs less at high load

Fixed-rate plans keep the price per kWh steady for the contract term, with narrow exceptions: changes in transmission and distribution fees, certain ERCOT or Texas Regional Entity administrative fees, or new governmental fees beyond the REP's control. (¹²) (¹³) For high-usage homes, fixed is usually the budgeting workhorse: when you buy a lot of kWh, rate stability matters more than flexibility. The trade-off is an early termination fee if you cancel a multi-month contract early—the PUC notes fixed plans can include that fee—and the risk that market prices fall while you are locked in. (¹⁴)

Variable (month-to-month) plans have no long-term contract or cancellation fee, but the rate can change month to month at the company's discretion. (¹²) That can work as a short bridge near a move. It is a weak default for a high-load household that hates summer spikes. If you let a fixed contract expire without shopping, you may roll onto a month-to-month variable product that is much higher—Power to Choose warns that default pricing after expiration is often much higher and that you should have a new contract in place before the old one ends. (¹²) (⁴)

Time-of-use (TOU) plans—including free nights/weekends styles—charge different prices by time of day or day of week. The PUC is explicit: EFL and Power to Choose average prices for TOU plans are based on the REP's estimate of how much energy is used in discounted versus premium hours, and those assumptions vary by product. If you do not shift usage, your bill may actually increase. (¹³) (⁸) High-usage homes often fail the TOU test because the biggest loads—central AC on a 100°F afternoon—sit in expensive hours. Unless you can shift laundry, EV charging, pool pumps, and a meaningful slice of cooling to discounted windows, a plain fixed rate usually costs less in practice than a glamorous TOU average.

Prepaid plans are pay-as-you-go, often with no deposit, but Power to Choose notes they generally charge a higher rate than non-prepaid plans and can disconnect with little notice if the balance runs short. (¹²) High usage makes prepaid cash-flow painful even when the marketing is friendly.

Credits, minimum fees, and plans that look cheap until peak season

Many plans include minimum-usage fees or usage credits. Power to Choose says typical minimum-fee cutoffs are less than 500 or 1,000 kWh, and that some companies instead offer credits or fee waivers for hitting a usage band—details that belong on the EFL. (⁴) (⁸)

Minimum-usage fees are usually irrelevant for high-usage homes (you are above the floor). Usage credits are the sharper risk: a credit engineered for the 1,000 kWh shopping column can dilute or vanish at 2,000 kWh, making a "cheap" plan expensive exactly when your AC runs hardest. (⁹) Power to Choose's shopping filters let you screen out plans with minimum usage fees/credits and tiered rates—worth using if your load is volatile across seasons. (³)

The practical preference for many large homes is a simple fixed-rate plan without usage cliffs: a competitive energy rate, transparent base charge, and a strong 2,000 kWh EFL average. Flashy credit math is optional entertainment, not a requirement.

A shopping workflow when months run 1,500–3,000+ kWh

1. Pull 12 months of kWh, not one bill. Note summer peak, winter peak, and shoulder months. Power to Choose's guide starts from past bills and seasonal patterns. (³)
2. Search by ZIP on ⁴ (and any independent comparison tool that shows all three EFL prices). WattKarma, for example, covers Oncor, CenterPoint, AEP Texas, and TNMP territories and shows rates at 500 / 1,000 / 2,000 kWh. (¹¹)
3. Open every finalist's Fact Sheet (EFL). Confirm product type, contract length, early termination fee, base charges, credits, and the 2,000 kWh average. (⁸)
4. Rank finalists at peak usage, then at shoulder months. If one plan only wins at 1,000 kWh, discard it for a high-load house.
5. Be skeptical of TOU averages unless you can document shifted load. The PUC's warning is the rule, not a footnote. (¹³)
6. Calendar expiration. For contracts with three or more months remaining, companies must send written expiration notice on a defined schedule; if you do nothing, you can be moved to a month-to-month variable plan. (⁴) High users should treat renewal season as seriously as enrollment.
7. Know the safety net. Provider of Last Resort (POLR) service exists if a REP cannot continue serving customers; the PUC describes it as relatively high-priced and intended as temporary. (¹⁵)

Cutting usage still beats any plan tweak. DOE guidance highlights filter maintenance (roughly 5–15% lower AC energy use), duct sealing, and ENERGY STAR equipment (about 15% more efficient than standard models on average). (²) For a high-usage home, efficiency upgrades and a clean fixed plan compound.

If you are outside competitive Texas—or outside Texas

Not every Texas ZIP has retail choice. Municipal utilities and cooperatives were not required to deregulate; Power to Choose says choice depends on where you live and directs residents to check by ZIP or call. (⁴) The PUC explains that munis and co-ops may opt into competition by governing-body resolution, and that their retail rates are generally set locally—not by shopping Power to Choose. (¹⁶) In those areas, your job is tariff literacy: customer charges, tiered blocks, and seasonal rates still change effective ¢/kWh as usage rises.

In other choice states, the Texas EFL grid is not universal, but the shopping discipline travels: compare all-in cost at your actual kWh, watch introductory periods, and separate supply rates from utility delivery. EIA's state average bills remain a useful reality check—Ohio's 2024 residential average was 846 kWh and $135.16; Maryland's was 929 kWh and $165.87. (¹)

Bottom line: which plan actually costs less for high usage

For most high-usage Texas homes in competitive areas, the plan that costs less is usually a fixed-rate product with a strong 2,000 kWh EFL average, modest or no usage cliffs, and a contract length you can live with through next summer. Variable plans trade price risk for exit flexibility. TOU plans only win if you can move the megawatts that matter. Credit-heavy "teaser" plans often win the 1,000 kWh beauty contest and lose the August invoice.

Shop the column that matches how you live. In Texas, for a high-usage home, that column is almost always 2,000 kWh—backed by your own peak months, not a marketing average.