Your August electric bill will be bigger than your April one. That part is not a mystery, and it is mostly not about the rate.
The average Texas home uses about 1,096 kWh a month across the year and around 1,537 kWh in August. Same house, same rate, roughly 40 percent more electricity. That is the difference between a bill near the statewide average of $164 a month (EIA, 2024) and one that can pass $250.
The rate side is smaller and far less predictable than most guides admit. Texas 12-month fixed rates did run about 9 percent higher in July 2024 than in October 2024. In 2025 that gap was about 2 percent. In 2026, July and August were the cheapest months of the year. Timing a contract was worth about $270 a year at the 2024 spread, and close to nothing in the two years since.
Which means the lever that actually moves your summer bill is the one on your thermostat.
Why Summer Bills Climb
Usage First, and Mostly
Cooling is about 28% of a Texas home’s electricity across the whole year (EIA RECS 2020), and it is the main reason an August bill looks nothing like an April one. A home that draws 1,000 kWh in April can draw 1,500 to 2,000 kWh in August. At 12 cents per kWh, that is a $120 energy charge against $180 to $240, before delivery charges that barely move.
What Happens on the Grid
When temperatures climb above 100°F day after day, every home and business in Texas runs air conditioning at full blast. That creates enormous demand on the ERCOT grid, often setting records.
The all-time peak reached about 91,000 megawatts on July 22, 2026 (ERCOT preliminary figure), more than Great Britain’s entire grid draws at its winter peak. For context, ERCOT’s spring peak days in 2025 and 2026 ran roughly 63,000-75,000 megawatts. That is 20-45% more power than the state needs on a warm spring afternoon.
When demand spikes, wholesale prices follow. In normal conditions, wholesale power is cheap. During peak summer afternoons, prices can hit $1,000 or more per megawatt-hour. In late August 2023 they topped $1,600 per megawatt-hour during a three-day stretch (EIA). Understanding how ERCOT and the Texas grid works helps explain why this happens.
Why That Barely Reaches Your Fixed Rate
Texas runs its own independent power grid through ERCOT, isolated from the rest of the country. We cannot easily import power from other states when things get tight, so summer heat hits the wholesale market hard and fast. During extreme heat the grid runs on thin margins, ERCOT issues conservation appeals, and in the worst case the grid operator can order rolling blackouts.
None of that lands on your bill the way people expect. An electric company selling a 12-month plan buys power across all 12 months, not just the ones you happen to be shopping in, so a record summer on the grid does not reliably produce a record summer on the plan board. In 2026 it produced the opposite.
Peak Demand Pricing Explained
Some plans do charge more when the grid is stressed. Knowing which kind you have matters more in summer than in any other season.
Time-of-use plans charge different rates depending on when you use electricity. You might pay 8 cents per kWh at night and 15 cents per kWh between 2 PM and 7 PM. If you can shift usage away from peak hours, these plans save money. If you run your AC hard all afternoon, they cost you more.
Free nights and weekends plans flip that around. You pay a higher daytime rate and get discounted or free electricity at night. They work if you are away during the day and do your heavy usage at night: dishwasher, laundry, pre-cooling the house before morning.
Fixed-rate plans charge the same rate whatever the hour. You are insulated from wholesale spikes and you pay a small premium for that. For most Texas households, a fixed rate is the simplest way through summer.
What the Rate Data Actually Says About Summer
Here are the average prices of a 12-month fixed plan at 1,000 kWh, energy plus delivery, from electricityplans.com’s historical table:
| Month | 2024 | 2025 | 2026 |
|---|---|---|---|
| April | 16.3 cents | 16.9 cents | 15.4 cents |
| July | 17.8 cents | 16.6 cents | 15.3 cents |
| August | 16.9 cents | 16.1 cents | 14.2 cents |
| October | 16.25 cents | 16.25 cents | not yet |
Read across the rows. 2024 is the only year in which summer carried a premium worth planning around. 2025 was nearly flat. In 2026, summer was the cheapest stretch of the year, and April was more expensive than July.
What good timing was worth: signing in July 2024 at 17.8 cents, when waiting until October would have meant 16.25, cost about $23 a month at 1,500 kWh, roughly $270 over the following year. That is the largest summer penalty in three years of data, and it has not repeated.
What the folklore is worth: nothing you should rearrange your contract around. There is no dependable spring discount. April 2025 was the most expensive month of its year.
When to Sign, and What Actually Matters
Shop When Your Contract Ends
The seasonal spread has been worth a cent or two per kWh. Month-to-month holdover pricing runs 2 to 4 cents per kWh above a fixed plan. Waiting three months for a “better” season costs more than the season has ever saved. Shop on your contract’s schedule, in whatever month that falls.
Compare what is on the board against the benchmark, not against a calendar: competitive 12-month fixed plans were running about 12 to 15 cents per kWh as of September 2026.
If Your Contract Ends in June, July, or August
You are not in trouble. In 2026 that was the best time of year to be shopping. Pull up current offers, compare total cost at your real summer usage rather than at a round 1,000 kWh, and sign if the price is in the competitive band.
What not to do is drift onto a month-to-month plan hoping fall rescues you. That is the one move that reliably costs money.
Contract Length
If a longer term is genuinely cheaper, take it. Just check first: in September 2026, average 24-month and 36-month offers priced above 12-month offers, so the usual “longer equals cheaper” assumption was backwards. See our contract length guide for the full comparison.
Watch Your Contract End Date
Check when your current contract expires and put it on the calendar.
- Start 30 to 45 days out: Your electric company must send at least three written notices during the final third of your term, with the last one at least 30 days before expiration, and you can switch with no early termination fee during the final 14 days (state rules, 16 TAC 25.475).
- Compare against today’s market: What matters is where this week’s offers sit, not what you paid last winter.
- Do not let it lapse: The default renewal is a month-to-month product with no cancellation fee, but its price can change every billing cycle, and it almost always costs more than what you would have found by shopping.
For more on how little the calendar matters, see our guide on when Texas electricity rates go up.
How to Cut Your Summer Electricity Bill
Your rate is locked for the term. Your usage is not, and usage is what makes summer expensive. These are the changes with real payback.
Thermostat Management
Your air conditioner is the biggest single driver of summer electricity costs. Small adjustments compound over a 100-degree month.
Set it at 78°F: The Department of Energy’s rule of thumb is about 3% on cooling costs for every degree you raise the thermostat. If you normally sit at 72°F, bumping to 78°F could cut AC costs by roughly 18%.
Use a programmable thermostat: Let the house rise to 82-85°F while you are at work, then cool it before you get home. The Department of Energy puts the savings at up to 10% a year on heating and cooling for a 7-10°F setback eight hours a day.
Smart thermostats go further: Devices like Nest, Ecobee, or Honeywell learn your patterns and adjust automatically. Before you buy one, check whether your electric company, such as TXU Energy or Reliant Energy, currently runs a thermostat program or rebate.
Pre-cool strategically: If you are on a time-of-use plan, run the AC harder in the morning when rates are lower. Drop the house to 74°F by noon, then let it drift to 78°F through the expensive afternoon. The thermal mass of the building holds the cool.
Time-of-Use Plan Strategies
If you are on a plan with peak pricing or free nights, structure your usage around it.
Shift heavy loads to off-peak hours: Run the dishwasher, washer, and dryer at night. The appliances do not care what time it is. Your bill does.
Pre-cool before peak hours: Crank the AC in the morning, then ease off during expensive afternoon hours.
Use timers: Set pool pumps, water heaters, and other discretionary loads to run during cheaper hours.
Charge devices overnight: Electric vehicles, laptops, and phones should charge during off-peak periods.
Reduce Heat Gain
The less heat that enters your home, the less your AC has to remove. Attack it from several angles.
Close blinds and curtains: South and west-facing windows let in the most heat. Blocking direct sunlight cuts the load on your system.
Use ceiling fans: Fans do not cool air, but the wind chill they create lets you raise the thermostat a few degrees and stay comfortable. Turn them off when you leave the room. They only work if someone is there to feel them.
Seal air leaks: Hot air sneaking in around doors, windows, and outlets forces your AC to work harder. Caulk and weatherstripping are cheap with quick payback.
Add insulation: If your attic is under-insulated, you are paying to cool the outdoors. The EPA estimates that air sealing plus attic insulation saves about 15% on heating and cooling costs.
Keep the heat outside: Cook on the grill instead of the oven. Use the microwave instead of the stovetop. Run heat-generating appliances at night. Every BTU generated inside is another BTU your AC has to remove.
Maintenance Matters
A well-maintained system runs more efficiently. A neglected one works harder and costs more.
Change your air filter monthly during summer: A clogged filter restricts airflow and makes the system labor. Filters cost $5-15; the efficiency loss from a dirty one costs far more.
Clean the outdoor unit: The condenser coils outside need airflow to release heat. Clear leaves, debris, and anything within two feet of the unit. Rinse the coils gently with a hose if they are dirty.
Schedule annual maintenance: A tune-up before summer catches problems early. Some electric companies offer maintenance plans or can point you to HVAC contractors.
Don’t ignore problems: Strange noises, weak airflow, or uneven cooling mean something is wrong. Fixing small problems early prevents an expensive failure during a July heatwave.
Understanding Your Summer Bill
When the August bill arrives, it helps to know what you are looking at. Texas electricity bills have a few distinct parts.
The Breakdown
Energy charge: Your rate per kilowatt-hour multiplied by your usage. This is the part your plan choice controls.
TDU delivery charges: Fees from the Transmission and Distribution Utility that moves electricity to your home. They are regulated, identical no matter which electric company you buy from, and as of September 2026 they run about $55-75 per month at 1,000 kWh (Oncor about $64, CenterPoint about $55). See our guide on understanding TDU charges for details.
Taxes and fees: Usually only a few percent of the bill. Residential electricity is exempt from state sales tax; what you see is a PUC assessment of one-sixth of 1%, a gross receipts tax reimbursement of up to about 2%, and local sales tax only in cities that chose to tax residential electricity.
Why Summer Bills Shock People
At the same rate, your summer bill is dramatically higher than spring or fall. The culprit is usage.
A typical Texas household uses around 1,000 kWh in April and 1,500-2,000 kWh in August. At 12 cents per kWh, that is the difference between a $120 energy charge and a $180-240 one, and because TDU charges stay roughly constant, the jump in the energy line feels even sharper.
Comparing to Neighbors
Wondering whether your bill is normal? The average Texas household uses about 1,096 kWh per month across the year (EIA, 2024), with August peaks around 1,500-2,000 kWh depending on home size, insulation, and habits.
If you are well above that, there are probably efficiency fixes worth making, or you simply have a larger-than-average home. If you are well below it, your home or your habits are doing something right.
When Summer Bills Indicate a Problem
Sometimes a high summer bill points to something beyond the season.
Red Flags
Usage doubled compared to last summer: Weather varies year to year, but a dramatic jump with no change in habits suggests a failing AC, air leaks, or a billing error.
Bill increased but usage didn’t: Your rate may have jumped when your contract expired and you rolled onto month-to-month pricing. Check your rate per kWh against your contract terms.
AC runs constantly but the house doesn’t cool: The system may be undersized, low on refrigerant, or failing. That inefficiency shows up in both your comfort and your bill.
Neighbors with similar homes pay much less: If your bill is far higher than comparable households, look for efficiency issues or a rate problem.
What to Do
Request a usage history from your electric company, or pull your own interval data from Smart Meter Texas, which keeps at least the past year at 15-minute resolution. Look for unexpected spikes or gradual increases that do not match the weather. Then check your rate per kWh against your contract terms. You may have rolled onto holdover pricing without noticing.
For more on analyzing your bill, see our guide on how to read your electricity bill.
The Bottom Line on Summer Electricity
Summer bills rise because summer usage rises. A Texas home uses roughly 40 percent more electricity in August than it does across the year as a whole, and that alone turns a $164 average month into a $250-plus one.
The rate side is real but small. Summer carried about a 9 percent premium in 2024, about 2 percent in 2025, and none at all in 2026, when July and August were the cheapest months of the year. Timing a contract perfectly was worth about $270 in the best case and nothing in two of the last three years.
The smart strategy:
- Shop when your contract ends, not when the calendar says to
- Compare offers against the current market, around 12 to 15 cents per kWh for competitive 12-month fixed plans as of September 2026
- Never let a contract lapse onto month-to-month pricing, which costs 2 to 4 cents per kWh more for as long as you sit there
- Take a longer term only if it is actually cheaper, which it was not in September 2026
- Spend your effort on usage: thermostat discipline, heat gain, and AC maintenance are where summer money is actually won
Ready to compare rates? Check current pricing at ComparePower.com. And if you are deciding between companies, see our company comparisons for how they stack up on rates, service, and reliability.
For more ways to control your costs, see our guides on how to lower your electric bill in Texas and average electricity usage in Texas.
Frequently Asked Questions
Do Texas electricity rates go up in summer?
Sometimes, and by less than people expect. Average 12-month fixed rates ran about 9 percent higher in July 2024 than in October 2024, about 2 percent higher in 2025, and lower in 2026, when July and August were the cheapest months of the year (electricityplans.com). Your summer bill rises regardless, because your usage rises.
What is the best month to lock in electricity rates in Texas?
There is not one. Across 2024, 2025, and 2026, the cheapest month was December, then January, then August. The month on the calendar is a weak predictor, so shop when your contract ends and compare the offer against what competitive plans are running that week.
Why is my summer electricity bill so much higher?
Usage. Cooling is about 28% of a Texas home’s electricity across the year (EIA RECS 2020), and it is what separates an August bill from an April one. A typical household uses around 1,000 kWh in spring and 1,500-2,000 kWh in August. If your rate also changed, check whether your contract expired and rolled onto month-to-month pricing.
Should I get a short-term contract if my current one expires in summer?
Usually not as a market-timing move. Waiting out summer on month-to-month pricing costs 2 to 4 cents per kWh more than a fixed plan, which is more than the seasonal spread has been worth in any of the last three years. Short terms make sense when your life is uncertain, such as a move or a lease ending, not when you are trying to outguess the calendar.