Free nights and weekends plans, explained

A free-nights plan gives you electricity at no energy charge during set hours. A common version: free from 9 at night to 6 in the morning. A free-weekends plan does the same from Friday night to Sunday night. Plans like these are called time-of-use plans, or TOU plans. The price depends on when you use power, not just how much. The free window is the plan’s off-peak period. The expensive daytime hours are its peak period. Your smart meter records your usage hour by hour, and the plan bills you by that clock.

Here is the part the ads skip. The daytime rate on these plans is high. It has to be. The provider gives away the night, so the day pays for both. A typical free-nights plan charges far more per kWh during the day than an ordinary fixed-rate plan charges all the time.

So the real question is never “is free good?” It is “how much of my power do I actually use during the free hours?”

Here is an illustration. Round numbers, energy charges only, so you can check the division yourself.

Say a free-nights plan charges 24¢ per kWh during the day and nothing at night. A plain fixed-rate plan in the same market charges 15¢ per kWh all the time. Your home uses 1,000 kWh in a month.

• On the flat plan, the month costs $150. Simple.
• On the free-nights plan, the cost depends on your split. Say 30 percent of your usage happens at night. Then 700 kWh gets billed at 24¢. That is $168. You paid more for the plan with free electricity.
• Now say half your usage happens at night. Then 500 kWh gets billed at 24¢. That is $120. Now the free plan wins.

The break-even point in this example sits at 37.5 percent. Push more than that share of your usage into the free window and you come out ahead. Fall short and the “free” plan costs you extra, every single month.

One more thing to check. “Free” usually means the energy charge is free. Delivery charges may still apply during the free hours on some plans. The plan’s Electricity Facts Label states exactly what is waived and what is not.

Now think about when a Texas home actually uses electricity.

The air conditioner does its hardest work in the afternoon and evening, when the sun has been beating on the house all day. Those are exactly the plan’s peak hours, at the plan’s highest rate. Dinner gets cooked in the evening. The washer, the dryer, and the dishwasher usually run while people are awake. By the time a 9 p.m. free window opens, the heavy lifting is mostly done. Overnight, a home runs light: the fridge, a fan, some chargers.

That is why most homes fall short of the break-even share without changing how they live. The plan is not lying about the free hours. It is betting you will not use them. That bet usually pays off for the provider.

Some households genuinely do win. They share one trait: they can move big loads into the free window.

• Electric vehicle owners. An EV charging overnight is the classic case. It is a huge load, and it lands entirely in the free hours. Providers know this, and many free-nights plans are marketed straight at EV owners.
• Pool owners. A pool pump on a timer can run all night instead of all afternoon.
• Deliberate shifters. This is called load shifting: laundry and dishes on delay timers, and pre-cooling the house before the peak rate ends. It takes real discipline, every day, all year.

If that sounds like your home, a free-nights plan deserves a serious look. Pull your hourly usage from Smart Meter Texas, the free state portal for your meter data, and compute your actual night share. If it clears the break-even point by a comfortable margin, the math is real.

Free-nights plans still publish average prices at 500, 1,000, and 2,000 kWh, like every Texas plan. But those averages have to assume a day-and-night split. The assumed split is not your split.

If the assumption says 40 percent of usage is free and your real share is 25 percent, the advertised average is a fantasy for your home. This is the same gap we write about across this site: the advertised rate is a number from a brochure, and your effective rate is what the twelve real months cost. Our bill-credit guide walks through the fixed-rate version of the same trick.

Our rankings price every plan against your real monthly usage, to the penny. We can do that for fixed-rate plans because a monthly bill tells us everything we need.

Time-of-use plans are different. Pricing one honestly requires knowing when you use power, hour by hour, across a full year. A monthly total cannot answer that. Rather than guess your split and publish a number that might be wrong, we leave time-of-use plans out. Every one of the 638 plans in our rankings is a fixed-rate plan we can price exactly.

If you are weighing a free-nights plan anyway, do it with your own data. Get your hourly usage, compute your free-window share, and run the break-even math from this guide against the plan’s actual rates in its EFL. If the plan clears the bar with your real numbers, that is a fair win.