Free Nights & Weekends Texas Electricity Plans: Do the Math First
Last updated: October 18, 2026 · 7 min read
"Free nights." "Free weekends." It's the most seductive pitch in Texas electricity, and on a comparison sort these plans often look unbeatable. But electricity is never actually free — the hours you don't pay for are paid back through a higher rate on the hours you do. Whether a free-nights plan saves you money or quietly costs you more comes down to one thing nobody advertises: how much of your power you actually use when it's free. For most homes, the honest answer is "not enough."
The short answer
A free-nights plan is a time-of-use plan: $0/kWh during set hours, a higher rate the rest of the time. The provider sets that daytime rate high enough to recover the free window, and the plan's low advertised average assumes you shift a big share of usage into the free hours. If your real usage looks like a normal home — AC peaking from late afternoon into evening — the expensive daytime rate usually wins, and you pay more than a plain fixed plan would cost.
Why "Free" Is Never Free
A retail provider buys power on the wholesale market and has to cover that cost plus margin across all the kilowatt-hours it sells you. If ten hours a day are billed at zero, the other fourteen have to carry the entire bill. So a free-nights plan isn't a discount — it's a redistribution. The provider takes the rate it would otherwise charge evenly and pushes it all onto the daytime and evening hours.
That's not inherently bad. For the right household it's a genuinely good structure. But it means the plan is a bet: you're wagering that you can move enough of your usage into the free window to come out ahead of the elevated daytime rate. Win that bet and you save real money. Lose it — and most homes do — and you've signed up for one of the most expensive ways to buy daytime electricity in Texas.
The EFL Trick: A Profile You Probably Don't Have
Here's the part that makes free-nights plans look cheaper than they are. Every plan's Electricity Facts Label publishes an average price at 500, 1,000, and 2,000 kWh. For a flat plan, that average is straightforward. For a time-of-use plan, the average has to assume when you use power — and the model profile baked into the calculation shifts a large share of usage into the free overnight hours.
In other words, the low number you see on the sort isn't a lie, but it describes a household that does most of its living at night. Run your actual day-heavy usage through the same plan and the effective rate can be dramatically higher. This is the same family of problem as the 1,000 kWh illusion: a published average optimized for a benchmark that isn't your life.
Watch for this
A free-nights plan that posts a strikingly low EFL average is assuming you shift usage you may not be able to shift. In Texas, the hottest hours — when the AC works hardest — run from roughly 3 p.m. to 9 p.m. That's daytime-rate territory on most free-nights plans, and it's exactly when a typical home uses the most power.
A Worked Example
Compare two plans for a home using 1,500 kWh in a summer month. Plan A is free 8 p.m.–6 a.m., 28¢/kWh otherwise. Plan B is a plain 15¢/kWh flat rate. The result depends entirely on how much usage falls in the free window:
| Share of usage in free hours | Plan A cost (free nights + 28¢ day) | Plan B cost (flat 15¢) | Cheaper |
|---|---|---|---|
| 20% (typical home) | 1,200 kWh × 28¢ = $336 | $225 | Plan B |
| 40% (night-shifted) | 900 kWh × 28¢ = $252 | $225 | Plan B |
| ~46% (break-even) | ~810 kWh × 28¢ = ~$227 | $225 | ≈ tie |
| 60% (EV + shifted chores) | 600 kWh × 28¢ = $168 | $225 | Plan A |
The free-nights plan only wins once you push roughly half your usage into the overnight window — a bar most homes can't clear without an EV or deliberate, daily load-shifting. At a normal 20% night share, the same plan costs almost 50% more than a flat 15¢ plan. The free hours are real; they just don't cover enough of your bill.
Who Free Nights Actually Fits
This isn't a warning to avoid these plans — it's a warning to do the math. There are households for whom free nights are excellent:
EV owners have the strongest case: charging overnight is a large, perfectly shiftable load that lands entirely in the free window. Shift workers and night owls who genuinely live and run appliances after 8 p.m. fit naturally. Anyone who can batch the big loads — laundry, dishwasher, pool pump, pre-cooling the house before the free window ends — into nights and weekends can tilt the ratio. The common thread is a real, repeatable pattern of overnight usage, not an intention to "try to use less during the day."
Smart move
Before signing, estimate honestly what fraction of your kWh you can land in the free hours — then check whether that beats a plain fixed plan at the daytime rate. If you're not confident you'll clear roughly half, a flat fixed plan is almost always the safer bill.
How to Read One Without Getting Fooled
On the EFL, a time-of-use plan won't read as a single flat rate. You'll see the free window described in the key-terms section and a notably higher per-kWh energy charge for the standard hours. Treat the headline average with suspicion: it reflects the model night-shifted profile, not your home. The number that matters is your effective rate at your real day/night split, which is what our tool computes. If you want the full skill of reading a label, our EFL guide walks through every section.
Compare free-nights plans against the flat-rate alternative
Enter your ZIP and home size. We rank every plan in your area by your real monthly bill — so you can see exactly what a time-of-use plan would cost you, not the night-shifted average.
See My Real Cheapest Plan →How to Vet a Free-Nights Plan, Step by Step
- Find out exactly which hours are free. Read the EFL for the precise free window and the daytime rate. The start and end times decide everything.
- Estimate the share of your usage in those hours. Be honest about when you actually use power. Most homes peak in late afternoon and evening — the expensive window — not overnight.
- Compare the daytime rate against a plain fixed plan. Look at what you pay during the non-free hours. If that rate is well above a flat fixed plan, the free hours have to make up the whole gap.
- Run your real usage, not the EFL profile. The advertised average assumes night-shifted usage. Compute your effective rate at your actual day/night split before deciding.
Common Questions
How do free nights and weekends electricity plans work?
They are time-of-use plans: electricity is billed at $0 per kWh during defined hours (for example 8 p.m. to 6 a.m., or all weekend), and at a higher rate the rest of the time. The free window is not a gift — the daytime rate is set high enough to recover it. You only come out ahead if you genuinely use a large share of your power during the free hours.
Why does a free-nights plan look so cheap on Power to Choose?
Because the Electricity Facts Label average assumes a usage pattern that is heavily shifted into the free hours. The published average price at 1,000 kWh is calculated against a model profile that puts a big chunk of usage at night, which drives the printed number down. If your real usage is spread normally across the day, your effective rate will be much higher than the advertised average.
Are free nights and weekends plans a good deal?
They can be — but only for a specific household. If you can move laundry, dishwasher, EV charging, pool pump, and pre-cooling into the free window, and you are genuinely away or low-usage during the expensive daytime hours, the math can work well. For a typical home that runs the AC hardest from late afternoon into evening, the high daytime rate usually outweighs the free nights.
What hours are actually free?
It varies by plan and provider, so read the EFL carefully. Common windows are roughly 8 p.m.–6 a.m. for nights, or Friday evening through Sunday night for weekends. The exact start and end times matter a lot: an hour of expensive evening AC can erase a night of free usage.
Do free-nights plans help if I have an EV or solar?
An EV is one of the strongest cases — overnight charging lands squarely in the free window and can be a large, shiftable load. Solar is more nuanced: rooftop solar already offsets daytime usage, which is when a free-nights plan charges the most, so the two can work against each other. Run your real numbers before assuming either helps.
Key Terms
Free Nights Plan · Effective Rate · Electricity Facts Label (EFL) · Fixed-Rate Plan · kWh · Full Glossary →
Keep Reading
Free-nights plans are one branch of a bigger family: every Texas plan type explained covers fixed, variable, indexed, prepaid, and bill-credit structures side by side. To understand the published-average trick in general, read The 1,000 kWh Illusion, and to vet any plan on its label, see how to read a Texas EFL. When you're ready, the ZIP search tool ranks every plan by your true bill.