Plano TX Electricity Plans: Compare Real Cost at 500 kWh

If you live in Plano and your monthly usage sits near 500 kilowatt-hours (kWh), the “cheapest rate” you see in an ad is often the wrong scoreboard. Texas retail offers are usually modeled at three standardized usage levels—500, 1,000, and 2,000 kWh—so a plan that looks like a bargain when the calculator assumes 1,000 kWh can look ordinary, or worse, when you actually use half that. The practical job is not hunting the lowest teaser cents-per-kWh. It is ranking plans by all-in dollars at your usage band, reading every fee on the ¹, and ignoring marketing that only looks good at a usage threshold you never hit.

That focus matters because 500 kWh is a low-use household in U.S. terms. The ² that in 2022 the average residential customer bought about 10,791 kWh for the year—roughly 899 kWh per month. Many Texas homes run higher in summer because air conditioning dominates the load, and consumer guides often describe typical Texas home usage in the ³ range. A studio, a well-sealed condo, a vacation-heavy travel month, or a home with sparingly used HVAC can land near 500 kWh. Those households get punished by the same product designs that make mid-usage bills look cheap: monthly base charges, minimum-use fees, and bill credits that unlock only near 1,000 kWh.

The dollar stakes are also easy to understate. At roughly 15¢/kWh, moving from a bad 500 kWh average price to a good one can be $10–$20 a month—small until you annualize it. At Texas’ 2024 statewide residential average of ⁴, a 500 kWh month is about $75 before local taxes and one-time fees. Shaving two cents off the effective average price saves about $10 per month, or $120 a year, without changing how much power you use. That is why the 500 kWh EFL column deserves a dedicated shopping pass—especially when ads keep pointing your eyes to 1,000 or 2,000 kWh instead.

How electricity works in Plano: choose the seller, not the wires

Plano sits inside competitive Texas choice areas where you pick a retail electric provider (REP) for the energy portion of the bill while a regulated transmission and distribution utility (TDU) delivers power over the poles and wires. In the Dallas area that wire company is ⁵; Metroplex shoppers in places such as ⁶ face the same split between retail shopping and Oncor delivery. Oncor itself points new service customers to the state’s shopping site: ⁷, use your ESI ID (the unique meter identifier), and let the REP send Oncor the move-in order.

The broader grid context is ⁸, which manages power flow for about 27 million Texas customers—roughly 90% of the state’s electric load—and administers retail switching for nearly 8 million premises in competitive areas. Retail competition covers ⁹ (historically described as about 85% of the state), while customers of many municipal utilities and cooperatives—think Austin or San Antonio—usually cannot shop REPs the same way.

For a Plano resident comparing plans, that structure creates a hard rule: switching REPs changes the energy supply product, not the physical wires. ⁵ are set through PUC-regulated utility rates and stay the same across REPs in the same service territory. When an EFL shows an average price at 500 kWh, that number is designed to reflect the bundled picture consumers actually need—not a naked “energy only” teaser that leaves delivery out until the bill arrives. You cannot “beat Oncor’s delivery rate” by switching brands. You can only change the retail energy contract riding on top of those wires.

Outages, meters, and line work remain with the TDU. Oncor’s residential resources distinguish choosing a REP from reporting an outage or looking up an ESI ID, which is the practical reminder that the company on your bill logo and the company that owns the meter are often not the same entity in competitive Texas.

The EFL is the comparison instrument—especially at 500 kWh

Texas regulators built the ¹ as a nutrition-label style sheet for competitive residential offers. A PUC consumer fact sheet defines it as standardized information on ¹⁰ so customers can make apples-to-apples comparisons. Federal consumer-protection work on retail competition likewise stressed disclosing supplier price at a few common residential usage levels—¹¹—because fixed monthly fees change the effective cents per kWh as usage rises or falls.

In practice that means the 500 kWh column on an EFL is not a footnote. It is the closest official proxy for what a low-use Plano month will cost. ³ is blunt: the EFL lists average price per kWh at those three levels and is the most reliable comparison tool because it accounts for charges beyond a headline rate. Official shopping still starts at ¹², the Public Utility Commission of Texas site that describes itself as the official, unbiased place for providers to list offers so customers can compare plans. The PUC’s choosing-a-plan page tells ERCOT-area customers who are not on a co-op or city utility to ¹³ and, if needed, call Consumer Protection at 1-888-782-8477.

Historical reporting from The Texas Tribune also documents why those three usage levels exist on the public portal: after years of confusion from 1,000-kWh-only displays, the commission moved toward ¹⁴, and it has periodically filtered offers that used bill credits or one-cent teasers to look artificially cheap. If you only scan the loudest number in a mailer, you are shopping the way vendors prefer. If you read the EFL trio, you are shopping the way regulators designed the market to work.

Why low usage breaks “cheap” plans: credits, minimums, and base charges

Three product features matter more at 500 kWh than at 1,000+ kWh.

First, bill credits tied to usage bands. Plans sometimes apply a large credit only if monthly usage lands near a threshold—often around 1,000 kWh. A credit that makes the 1,000 kWh average price look elegant does nothing for a 500 kWh month, so the effective rate jumps. Tribune reporting on PUC crackdowns described exactly this pattern: shopping-site filters began excluding prices with ¹⁴, noting that some customers can be dinged for using too little. Separately, regulators called out “tricky” pricing on the nutrition-label style disclosures used for ¹⁵. Credits are not illegal by definition; they are simply a usage bet. At 500 kWh you usually lose that bet.

Second, minimum-use fees. Some plans charge a fee when monthly kWh falls under a floor. Guidance on Texas summer plan math notes that many competitive plans impose a minimum and that thresholds are often under ¹⁶. If your “normal” month is 480–520 kWh, a minimum fee is not an edge case—it is a recurring line item. A $9.95 minimum-use charge on a $55 energy bill is a huge percentage tax on conservation. Ironically, the households trying hardest to use less can pay the highest effective rates under these designs.

Third, monthly base charges. A fixed fee of even $9–$15 is diluted across 2,000 kWh and amplified across 500 kWh. Suppose for illustration only (not a live Plano offer) that a plan charges a $10 monthly base plus 10¢/kWh of energy and delivery combined. At 500 kWh the raw math is $10 + $50 = $60, or 12¢/kWh effective before tax. At 1,000 kWh the same structure is $10 + $100 = $110, or 11¢/kWh. Nothing “changed” about the contract—the fixed charge simply weighs more when the denominator shrinks. That is why comparing the EFL’s 500 kWh average price—not a mid-usage marketing number—is the correct sort key for low-use shoppers.

Delivery charges reinforce the point. ⁵ are not optional, and while they do not change when you switch REPs inside Oncor territory, they still belong in the all-in EFL rate you compare. Separately advertised “energy rates” that omit delivery are incomplete for budgeting. If a salesperson quotes only the energy charge, ask for the EFL average price at 500 kWh and stop the conversation until you have it.

A practical way to compute real monthly cost at 500 kWh

Use this sequence before you enroll.

1. Confirm your recent usage. Pull 12 months of bills or interval data if available. If you are moving into Plano, ask the prior occupant, property manager, or your REP for typical usage; Oncor-area move-in guidance starts with locating the property ¹⁷, choosing a REP (including via Power to Choose), and having the REP send Oncor the move-in order.

1. Convert the EFL 500 kWh price into dollars. If the EFL average price at 500 kWh is p cents per kWh, a back-of-the-envelope monthly energy+delivery cost is (p / 100) × 500. Example: Texas’ statewide average residential retail price was ⁴ according to EIA’s Electric Power Annual Table 2.10. That statewide average is not a Plano plan quote, but it is a useful yardstick: 14.94¢ × 500 ≈ $74.70 for a month at that average price level, before comparing your actual offered EFL. If a shortlist plan’s 500 kWh EFL figure is 17¢, the same math is about $85; at 12¢ it is about $60. Rank plans by those dollar outcomes, not by how they look at 2,000 kWh.

1. Stress-test one low month and one high month. Plano summers still move air-conditioning load. If your shoulder months land near 500 kWh but July hits 1,200–1,600 kWh, a plan that is excellent at 500 and awful at 1,500 can still wreck annual cost. Seasonal usage is why ¹⁶ belongs in plan selection, not after the first midsummer bill. A simple approach: weight three months at your summer peak and nine months at your shoulder average, then estimate annual dollars for each finalist plan.

1. Read early termination fee (ETF) and contract length. Home shopping guides note ETFs that can range from ³. A low-use renter who may move in nine months should not overvalue a 36-month teaser. Paying a $150 ETF to escape a mismatched plan can wipe out a year of 500 kWh “savings.”

1. Keep taxes and one-time fees separate. EFL average prices are the right relative ranking tool; tax, deposits, and connect fees can still change cash due at enrollment. Compare apples to apples on recurring monthly cost first, then layer enrollment friction.

Which plan types fit a 500 kWh Plano household

True fixed-rate plans without usage games usually deserve first look. You want an EFL where the 500 kWh price is competitive and the fine print does not add a minimum-use hammer. Fixed products trade some upside for predictability; that predictability is valuable when your absolute bill is small and you mainly want to avoid nasty fee surprises.

Bill-credit or “free nights” style products can still work—but only if your actual schedule and usage hit the credited hours or thresholds. At 500 kWh, missing a 1,000 kWh credit is common. Rank these using the 500 column first; if that column is mediocre, walk away even if the 1,000 column looks spectacular. Free nights and weekends sound perfect for a night-owl apartment—until the daytime AC in August burns the budgeted kWh before happy hour starts.

Variable-rate plans remove long contracts but expose you to monthly price moves. For very low absolute usage, dollar risk is smaller than for a 2,000 kWh home, yet percentage swings can still sting. Treat variables as a conscious risk choice, not a default.

Prepaid / pay-as-you-go products sometimes avoid deposits and can suit tenants with thin credit files, but they demand active balance monitoring. Read the prepaid disclosure as carefully as the EFL.

Higher renewable-content plans are a preference layer, not a usage layer. The EFL already discloses renewable content for competitive Texas products, and federal guidance has long treated resource-mix disclosure as part of fair retail competition labeling (¹¹). Still compare the EFL 500 kWh price first so any green premium is visible in bill units, not slogans.

Shop Plano the boring, correct way

1. Enter your Plano ZIP on ¹² and, if the site asks you to pick a TDU, select the Oncor option that matches your address—delivery territories determine which offers appear.

1. Sort or visually scan using the 500 kWh average price, then open EFLs for the top few.

1. Cross-check the same offers in another licensed comparison tool if you want a second view; WattKarma, for example, emphasizes showing ³ rather than a single teaser usage.

1. Confirm Oncor delivery and have your ESI ID handy for move-ins using Oncor’s own ¹⁷.

1. Save PDFs of the EFL, Terms of Service, and Your Rights as a Customer packet. PUC materials describe those documents as core enrollment protections, including the standardized ¹⁰.

1. Re-shop before auto-renewal. Competitive markets move. A plan that won at 500 kWh last year may lose after wholesale swings or after your summer usage pattern changes.

Notes for apartments, small businesses, and other states

Apartment dwellers on master-metered service may not shop individually—confirm whether your lease includes electricity. Small-business meters often see commercial tariffs and demand charges that residential EFLs do not capture; treat “500 kWh residential” math as a residential tool only unless your supplier provides a commercial facts label for your rate class.

Outside Texas, the shopping portals differ even when the physics of fixed fees still apply. Ohio and Maryland also have retail choice in many territories, but default standard-offer service, capacity charges, and utility billing formats vary by utility. Maryland utility filings tracked by Energy Choice Matters show how default SOS energy rates for BGE can jump when ¹⁸—a reminder that regulated default rates and competitive supply are different animals, and that a “500 kWh” comparison still needs the correct price components for that state. In fully regulated states without retail choice, you generally cannot pick a Plano-style REP; you negotiate end-use efficiency and the correct utility rate schedule instead. DOE’s discussion of ¹⁹ is a useful vocabulary primer when you leave Texas’ unbundled retail model.

Decision checklist for a 500 kWh Plano bill

• Is my realistic monthly range actually near 500 kWh, or only my mildest month?
• Does the EFL 500 kWh average price beat my shortlist when converted to dollars (¢/kWh × 5)?
• Does the EFL or terms reveal a minimum-use fee I would trip?
• Are bill credits contingent on usage I never reach?
• Are Oncor delivery charges included in the average price I’m comparing?
• Can I live with the ETF if I move or switch early?
• For summer, what does the same plan imply at 1,000–2,000 kWh?

Texas statewide residential averages hover near the mid-teens of cents per kWh in recent EIA annual data (⁴), while the all-sector Texas average retail price on the ²⁰ is lower because industrial load pulls the blend down. Your Plano 500 kWh outcome will usually live in the residential world, not the all-sector average. Shop the 500 kWh EFL column like it is the product price. Everything else is packaging.