Click the upload zone or drag & drop a PDF or image file of the Electricity Facts Label from any Texas retail electric provider.
Select a quick tier (500, 1000, 1500, 2000, or 2500 kWh) or type a custom monthly usage value in kilowatt-hours.
The site automatically calculates an itemized bill breakdown including energy charges, TDU delivery fees, and any bill credits (excluding taxes).
Fourteen proven, Texas-specific strategies to lower your kWh usage — thermostat settings, insulation, LEDs, HVAC maintenance, and regional tips for DFW, Houston, and West Texas.
Keep your AC running efficiently with easy DIY tasks that cut cooling costs by 15–25% and extend system life.
Block 65–90% of solar heat with the right window treatments. Compare costs, DIY options, and heat reduction.
Compare the costs, backup capabilities, and payback periods of solar systems with and without battery storage.
Water storage, non-perishable foods, generators, batteries, and emergency supplies for Texas storms and outages.
Compare ductless mini-split systems vs. central AC—efficiency, cost, zoning, and when a mini-split makes sense for your home.
Preparation steps, evacuation planning, post-storm safety, and live hurricane tracking resources for Texas Gulf Coast residents.
Learn how SparkEFL brings transparency to the Texas deregulated electricity market and how the EFL bill calculator works.
Upload or drag & drop a PDF or image file of the EFL document
Upload or drag & drop a PDF or image file of the EFL document
Supports PDF documents and images (PNG, JPG, WEBP) from Texas REPs
Select a quick tier usage below or enter a custom value in the field. Amounts shown do not include tax.
Upload an EFL document to generate a line-item bill breakdown
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Upload an Electricity Facts Label (PDF, image, or URL) to view the itemized bill breakdown for your usage.
Extracted pricing mechanics and contract terms
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Texas leads the nation in electricity consumption, and with brutal summers driving AC use, small changes add up to big savings. Here are fourteen proven, Texas-specific strategies to lower your kWh usage and shrink your monthly electric bill — many of which pay for themselves in the first month.
Every degree above 78°F saves roughly 6–8% on cooling costs. Set it to 85°F when away from home. A programmable or smart thermostat automates this so you never forget, and many Texas utilities — including Oncor, CenterPoint, and AEP Texas — offer rebates of $50–$150 for upgrading to a Wi-Fi-enabled model. In the Dallas–Fort Worth heat dome where July highs regularly top 100°F, this single change can save $20–$40 a month.
Ceiling fans create a wind-chill effect that lets you set the AC 4°F higher without losing comfort. In summer, ensure blades rotate counterclockwise to push air down. Remember—fans cool people, not rooms, so turn them off when you leave. This matters most in humid Gulf Coast cities like Houston and Corpus Christi, where moving air dramatically improves perceived comfort.
Texas attics can exceed 140°F in July and August. Adding R-38 to R-49 insulation and sealing gaps around doors, windows, and ductwork can cut cooling loads by 20%. Weatherstripping is an inexpensive weekend project with immediate payoff on your next bill. In older homes common across San Antonio and Austin, radiant barrier foil in the attic can reflect up to 97% of radiant heat away from living spaces.
Heating water accounts for about 90% of a washing machine's energy use. Switching to cold-water detergent saves $50–$100/year. Running only full loads in both washer and dishwasher reduces cycles and water-heating demand — especially valuable on Texas time-of-use plans where hot water heating shifted to overnight free-energy hours can drop your effective rate dramatically.
Electronics drawing power while "off" can add 10% to your bill. Plug TVs, gaming consoles, and chargers into smart power strips you can cut with one switch. Smart strips with occupancy sensing shut off automatically when you leave the room. In a state where the average household uses over 1,100 kWh a month, killing phantom loads can reclaim 100+ kWh monthly.
LEDs use 75% less energy and last 25× longer than incandescent bulbs. Replacing 20 bulbs saves about $100/year. Texas summers mean lights also produce less heat, reducing the cooling load — every watt of lighting avoided is roughly a third of a watt your AC no longer has to remove. Look for ENERGY STAR-rated bulbs, and check with your transmission and delivery utility (TDU) for free LED giveaway programs.
South and west-facing windows let in massive heat. Cellular shades, reflective blinds, or solar screens can cut heat gain by 40–70%, letting your AC run less. This is critical in West Texas cities like El Paso and Lubbock, where intense sun and low humidity drive daytime cooling loads. For a deeper dive, see our guide on solar screens and window treatments.
Heat pump water heaters are 2–3× more efficient than standard electric tanks. They dehumidify the surrounding air as a bonus—useful in humid Texas climates. Federal tax credits (up to $2,000 through the Inflation Reduction Act) and Texas utility rebates can offset a large share of the purchase cost, making payback often under 5 years.
Many Texas retail electric providers offer free nights, free weekends, or time-of-use plans. Running the dishwasher, laundry, and EV charging after 9 PM or on weekends can slash your effective rate. The Texas grid (ERCOT) peaks between 3–7 PM on summer weekdays, so shifting load away from those hours also helps grid reliability. Check your EFL for peak hours and use our calculator to compare plans side by side.
Texas's deregulated market means dozens of plans compete for your business, but the cheapest advertised rate isn't always the cheapest at your actual usage. A flat-rate plan may beat a bill-credit plan at 500 kWh but lose at 2,000 kWh — or vice versa. Use the EFL Bill Calculator above to test any plan at your real monthly kWh before you sign up. Texans who match their plan to their usage routinely save $300–$600 a year.
A dirty, neglected AC unit works harder and uses 15–30% more energy. Annual spring maintenance—cleaning coils, checking refrigerant, and replacing filters—keeps efficiency high before the brutal June–September cooling season. Some Texas utilities offer free or discounted tune-ups through efficiency programs, and a well-maintained system in a 100°F Texas summer is the difference between a $180 bill and a $260 bill.
An oversized central AC short-cycles and dehumidifies poorly, while an undersized one runs nonstop. If you've added insulation or windows, your old unit may no longer be the right size. Zoned mini-split systems can cool only the rooms you use, cutting consumption 20–40% in larger Texas homes. See our mini-split pros & cons guide to decide if it fits your home.
Your outdoor condenser releases heat into the surrounding air, and when that air is already scorching under the Texas sun, the unit works harder and less efficiently. Shading the condenser with a purpose-built awning, lattice screen, or carefully placed tree can lower the air temperature around it by 10–15°F and improve efficiency by up to 10%. Just keep at least 2–3 feet of clearance on all sides so airflow isn't blocked — a common mistake that actually raises bills. This is especially impactful in sun-baked regions like South Texas and the Rio Grande Valley, where afternoon temperatures routinely exceed 100°F and the unit runs nearly nonstop from June through September.
A clogged return air filter chokes your entire HVAC system, forcing the blower to work harder and reducing airflow across the evaporator coil — which can spike energy use by 5–15% and even freeze the coil on the hottest Texas afternoons. Check the return air filter monthly during peak cooling season (June–September) and replace it every 1–3 months, depending on whether you have pets, allergies, or a dusty environment common in West Texas and the Panhandle. A clean, low-resistance pleated filter (MERV 8–11) balances filtration with airflow; going too high on MERV rating can actually restrict air and raise bills. This is one of the cheapest, fastest wins in Texas — a $10–$15 filter can save $20–$40 a month when the AC is running around the clock.
Understanding your Texas electricity bill doesn't have to be confusing. From EFLs and TDU charges to bill credits and time-of-use plans, here are clear answers to the most common questions Texas homeowners have about how their electric bill is calculated.
Texas electricity plans advertise an "average price per kWh" at 500, 1,000, and 2,000 kWh — but almost no household uses exactly those amounts. Our calculator reads the official EFL for any plan and rebuilds your true, itemized bill at the exact usage you enter, so you know what you'll actually owe before you sign a contract.
Every Texas retail electric provider (REP) is required by the Public Utility Commission of Texas (PUCT) to publish an Electricity Facts Label for each plan. The EFL includes a table showing the average price per kWh at 500, 1,000, and 2,000 kWh of monthly usage. These three numbers are what show up in big bold type on comparison sites and in advertisements — and they are the single biggest source of confusion for Texas electricity customers.
The problem is that the "average price per kWh" is a blended number. It folds together the energy charge, the fixed monthly customer fee, TDU delivery charges, and any bill credits — all divided by usage. When your real usage is different from 500, 1,000, or 2,000 kWh, that blended average no longer applies. Fixed fees get spread across a different number of kWh, and bill-credit thresholds can flip on or off by a single kilowatt.
A plan advertised at 10¢/kWh at 1,000 kWh might actually cost you 13¢/kWh at 750 kWh or 15¢/kWh at 1,500 kWh — because a bill credit that kicks in at 1,000 kWh disappears the moment you use 999 kWh, and the fixed monthly fee weighs heavier at lower usage. The only way to know your real cost is to calculate the bill at your usage. That is exactly what this tool does.
Upload the EFL. Drop in a PDF or image of the Electricity Facts Label for any plan you're considering. The parser runs entirely in your browser — your document is never uploaded to a server. It extracts the energy rate, fixed monthly customer fee, TDU delivery charges, bill credits, and any usage discounts.
Enter your monthly usage in kWh. Pick a quick tier (500, 1,000, 1,500, 2,000, or 2,500 kWh) or type in your own number from a recent bill. The amount you enter excludes taxes, just like the calculator's result.
Review your itemized bill. The tool applies each component in the correct order — REP base charge, energy charge, TDU delivery, then any bill credits — and shows a line-by-line breakdown plus your effective price per kWh at that exact usage.
Compare plans honestly. Upload a second EFL, enter the same usage, and compare the two totals side by side. The cheaper advertised rate is very often not the cheaper bill at your real usage.
To show why the advertised average is misleading, here is a typical Texas fixed-rate plan modeled at four usage levels. Assume an energy rate of 8¢/kWh, a $9.00 monthly customer fee, TDU delivery of $4.39/month + 4.018¢/kWh (Oncor territory), and a $35 bill credit at 1,000 kWh and above.
| Usage | Energy + Fees | TDU Delivery | Bill Credit | Total Bill | Effective ¢/kWh |
|---|---|---|---|---|---|
| 500 kWh | $49.00 | $24.48 | — | $73.48 | 14.7¢ |
| 1,000 kWh | $89.00 | $44.57 | −$35.00 | $98.57 | 9.9¢ |
| 1,500 kWh | $129.00 | $64.66 | −$35.00 | $158.66 | 10.6¢ |
| 2,000 kWh | $169.00 | $84.75 | −$35.00 | $218.75 | 10.9¢ |
Notice how the effective rate at 500 kWh (14.7¢) is roughly 50% higher than at 1,000 kWh (9.9¢) — on the exact same plan. The only thing that changed is usage. This is the bill-credit cliff in action: use 999 kWh and you miss the $35 credit entirely, while a neighbor using 1,001 kWh gets it.
This is why comparing plans by their advertised average price alone is risky. A plan that looks cheapest at 1,000 kWh may be the most expensive at your actual 700 kWh summer usage — or the cheapest at 2,000 kWh during a brutal August. Run every EFL through the calculator at your real monthly usage before you commit.
This is what you pay the retail electric provider for the electricity itself — your usage in kWh multiplied by the plan's energy rate (listed on the EFL in cents per kWh). On a fixed-rate plan this rate stays constant for the contract term; on a tiered plan it changes as you cross usage thresholds.
A flat fee the REP charges every month regardless of usage, typically $4.95 to $9.95. It covers administrative and billing costs. Because it's fixed, it has a large effect on your effective rate at low usage — a $9 fee is 1.8¢/kWh at 500 kWh but only 0.45¢/kWh at 2,000 kWh.
These pay your local Transmission and Distribution Utility to deliver power over the poles and wires. In Texas there are four main TDUs: Oncor (Dallas–Fort Worth), CenterPoint (Houston), AEP Texas, and TNMP. Delivery includes a fixed monthly base fee plus a per-kWh charge. TDU rates are set by the state and appear on your bill no matter which REP you choose — you cannot shop for them.
Many plans subtract a credit when usage falls in a defined range — for example a $35 credit at 1,000–2,000 kWh, or a usage discount at 999 kWh and above. These make the advertised average look attractive, but they create "cliffs" where a single kWh one way or the other changes your bill by tens of dollars. The calculator detects and applies both credits and discounts automatically.
Texas applies a 6.25% state sales tax plus local city and special-district taxes (up to about 2%) on the taxable portion of your bill. Because rates vary by city and some line items are exempt, taxes can't be calculated precisely from an EFL alone. The calculator therefore shows your pre-tax bill so you can compare plans on an apples-to-apples basis; your final billed amount will be slightly higher once your provider adds sales tax.
The most accurate comparison uses your actual usage history, not a benchmark. Pull 12 months of bills and find your lowest and highest months — often a mild spring month (600–800 kWh) and a peak summer month (1,500–2,500 kWh). Run each EFL through the calculator at both extremes plus your annual average. A plan that wins at all three is a safe choice; a plan that only wins at 1,000 kWh is a gamble.
Pay special attention to bill-credit thresholds. If your usage swings between 800 kWh in October and 1,800 kWh in August, a plan with a credit that only applies above 1,000 kWh will give you inconsistent savings. For deeper background, browse our Texas electricity billing FAQ and the energy-saving guides linked below.