Want to see your electric curtain power consumption? Enter your wattage, how many hours a day you run it and what you pay per kWh as your electricity rate, then hit Calculate to get the monthly cost and kWh used on your bill. Those same results also cover electric curtain electricity consumption.
If you are wondering about electric curtain electricity consumption, the short answer is that your motor draws a few dozen watts for under a minute a day, so electric curtains add only a few kilowatt-hours to your yearly usage. This guide shows how homeowners can calculate the real number for their own windows, what changes it, and when smart home automation can offset it.
A motorized track is one of the lightest electrical loads in a home. The motor only works while the fabric is travelling, which usually takes well under a minute, and the rest of the day the system sits idle and waits for a command. That is why electric curtains cost far less to run than almost any appliance you own, even if you open and close them several times a day.
Two separate draws add up to the total. The first is the moving load: the rated motor power multiplied by the seconds it runs. The second is the standby load: the small current that keeps the receiver, remote or app connection awake around the clock. In practice the second one is usually the larger of the two, which surprises most people.
Most buyers meet this question while comparing automated window treatments with ordinary window coverings. The honest comparison is between a curtain motor that runs for seconds and a household that runs heating and cooling for hours. Your energy consumption from the motor depends on the opening time and closing time of each movement, plus the standby load, not on how often you glance at the app.
Rather than quoting a generic range, work through one realistic setup. Suppose a wired motor rated at 46 watts drives a 3.2 m track. One full movement takes 38 seconds, and the schedule moves the curtains three times per day: open at sunrise, close at midday sun, and close again in the evening. Standby draw is 0.5 W, and your electricity rate is $0.17 per kWh.
The energy in watt-hours is the power multiplied by the running time in hours:
$$E_{\text{moving}} = \frac{P \times t \times n}{3600}$$
Here \(P\) is motor power in watts, \(t\) is seconds per movement, and \(n\) is movements per day.
Substituting the example values gives \(46 \times 38 \times 3 \div 3600\), which is 1.46 Wh per day, or about 0.49 Wh for each opening or closing. Over a year that adds up to only 0.53 kWh.
The receiver in standby mode uses \(0.5 \times 24 = 12\) Wh every day, which is 4.38 kWh over 365 days. That is more than eight times the energy the motor spends actually moving the fabric.
Adding both loads gives roughly 0.0135 kWh per day and 4.91 kWh per year. At $0.17 per kWh, the annual operating costs come to about $0.83 for one window. Four identical windows would use 19.6 kWh and cost around $3.34 per year.
Motor size changes the moving load but barely moves the total, because standby dominates. The table keeps the same 38-second, three-movement schedule, 0.5 W standby and $0.17 rate from the worked example, and varies only the rated power.
| Motor rating | Moving energy per day | Total per year | Cost per year |
|---|---|---|---|
| 25 W (light sheer track) | 0.79 Wh | 4.67 kWh | $0.79 |
| 46 W (standard motorized curtain) | 1.46 Wh | 4.91 kWh | $0.83 |
| 80 W (heavy motorized curtain systems) | 2.53 Wh | 5.30 kWh | $0.90 |
A motor more than three times more powerful raises your yearly bill by about eleven cents. The rating describes the peak draw while the fabric moves; it says very little about how much power consumption you will see on the meter.
A small electric motor pulls a belt or cord along the track, and a controller decides when to switch it on. Power can arrive in two ways, and the choice shapes how you think about charging and maintenance.
Wired systems take mains power through a plug-in adapter or a low-voltage supply. You never charge anything, and heavier drapes on wide tracks are easier to support this way. The motor power rating matters most here because the supply must handle the peak draw.
A battery-powered unit stores energy in rechargeable batteries, often a lithium battery pack inside the motor tube. Take a 7.4 V pack rated at 2.0 Ah, which holds 14.8 Wh. If the motor pulls 1.5 A for the same 38-second, three-movement schedule, it uses about 0.35 Wh per day, so the pack covers roughly six weeks of movement alone. Standby draw, cold rooms and heavier fabric shorten that in real homes. Charging is a small, occasional task, which makes this the favourite option for retrofit work where running cable is awkward.
Battery-powered motorized curtain systems do not use more energy than wired ones. They simply move the point where you pay for it from the wall to the charger.
Voltage is the electrical pressure that pushes current through the motor, and it explains why two motors with the same watts can look very different on a spec sheet. A pack listed with an input voltage of 5 V is simply what the charging cable supplies; the motor may then run at a higher operating voltage such as 7.4 V after the circuit steps it up, as a transformer or built-in converter would. Watts are voltage multiplied by current, so a higher voltage can deliver the same power with a smaller current. Next, look at electric cooler electricity consumption.
From an electricity standpoint the difference is small: both types draw similar energy for the same job. What changes is installation, whether you need an electrician, and whether solar energy can feed the system.
If your own numbers sit above the worked example, one of four things is usually responsible. Each one changes either the motor power, the running time, or the number of movements.
A longer track takes longer to travel, which raises the seconds in the formula. A ripplefold heading uses more fabric per metre than a flat panel, which adds weight for the motor to pull. Doubling the width roughly doubles the moving load, but because that load is a tiny share of the total, the yearly cost barely changes.
Heavy blackout lining requires a stronger motor and sometimes a slower, lower-current travel speed. Light sheers need less torque. Choose the weight your room actually needs for light control rather than the heaviest one available.
Every extra scheduled movement adds one more slice of moving energy. Moving the curtains eight times a day instead of three roughly triples the moving load, to about 3.9 Wh per day in the worked example, which is still only a fraction of a watt-hour per hour and does not change the overall conclusion.
A well-made motor wastes less energy as heat, uses noise-reduction gearing to run quieter, and lasts longer. Ask the supplier how the curtain motor behaves at the end of its travel, because a unit that stalls against the stop draws extra current for no benefit. Look at standby draw on the datasheet as well as peak watts, because that is the figure that affects your meter every hour of the year.
Context helps. The table below sets the 46 W worked example beside everyday household appliances, using typical annual figures at the same $0.17 rate. The appliance numbers are rough planning values, not measurements of any specific model. Next, look at humidifier power consumption.
| Device | Typical annual energy | Approximate yearly cost |
|---|---|---|
| Motorized curtains (one window) | 4.9 kWh | $0.83 |
| LED television (60 W, 4 hours per day) | 87.6 kWh | $14.89 |
| Refrigerator | About 400 kWh | About $68 |
| Water heater | Several thousand kWh | Several hundred dollars |
| Electric oven | Hundreds of kWh | Tens of dollars |
Not in any way you could measure. The yearly figure for one window is less than the running cost of a television in a single week, so the effect on your energy bills is lost in normal month-to-month variation.
Yes, but only the small standby load described above. The motor itself does not run between commands. If it bothers you, a switched outlet or a unit with a very low standby rating removes most of it.
Here the argument turns around. Because smart curtain scheduling controls how much sun and heat reach a room, the real question is whether it removes more energy than the ~5 kWh it adds. Many households find the answer is yes, particularly where large glass faces the afternoon sun.
A simple test makes the point. Imagine closing the curtains saves just five minutes of run time per day on a 1.2 kW air conditioning unit. That is 36.5 kWh per year, over seven times the curtain system's own use. This is a hypothetical, but it shows how little benefit is needed to break even.
That is why energy efficiency is better judged for the whole house than for one device. A smart home that links curtains, thermostat and lighting delivers gains no single appliance can, and the efficiency improvement comes from automation rather than from the motor. Ranking electric curtains purely by their own wattage misses the point: the efficiency of the room's heating and cooling is what you are really improving, and well-timed energy savings in that system dwarf the motor's draw.
Closing curtains before the strongest sunlight arrives cuts solar heat gain through glass, which reduces the cooling loads placed on your HVAC equipment in summer.
A closed curtain adds a layer of trapped air that slows heat loss through the window. Closing at dusk and opening in the morning keeps heating from working harder than it needs to, which is simple insulation you did not have to buy separately. Even a modest winter saving is enough to offset what the system itself draws.
Opening fully at sunrise lets natural daylight replace artificial lighting for part of the day, trimming a few more watts of lighting load without any effort. That small saving also helps cover what the motor and receiver draw in the worked example.
Sensors can close the fabric when sunlight is strongest or open it when occupancy is detected. Temperature control rules and seasonal schedules work the same way. These home automation rules are what turn a convenience feature into an energy efficiency measure, as part of a broader smart home setup.
Use the same arithmetic for your own home. Multiply motor watts by seconds per movement by movements per day, divide by 3,600, add 24 times the standby watts, then multiply by 365 and divide by 1,000 to get kWh per year. Multiply the result by your local electricity rates for dollars. A typical installation lands between a few cents and a couple of dollars per window, so the cost never decides the purchase.
Electric curtains also keep their running cost stable when rates rise. Even if your tariff doubled to $0.34 per kWh, the worked example would still cost under $1.70 per window per year, so electric curtains remain one of the cheapest conveniences to power. The more useful check is the rate on your heating and cooling, because that is where timing the curtains can make or lose real money across a full season.
For a household with a utility spend in the thousands of dollars, the curtain share is a rounding error, and the payoff comes from comfort and any HVAC savings.
Treat the savings side with the same care: promised percentages vary by climate, window orientation and how you run your HVAC, so measure rather than assume.
Electric curtains come in many forms, so shop on specification rather than marketing. Ask each supplier for the standby wattage, the rated motor power and the travel time per movement, then run the formula above to compare models on your own schedule.
When you compare models, put energy efficiency, energy savings and standby draw alongside the features that matter day to day:
Judge the purchase on return on investment from comfort, daylight control and sustainability for the environment of your building, not on the electricity bill, which will not change noticeably.