Payback
Calculate BLDC payback
Compare upfront cost against electricity savings to see when an efficient fan starts paying you back.
Cost assumptions
Power Saved
47W
Monthly Saving
₹78
average across the year
Payback Period
20 months
3-Year Electricity Saving
₹2,820
before price difference and repairs
Buying Guidance
Use the price fields above for the model you are considering.
For a fair payback estimate, compare fans with similar blade size, air delivery, warranty, and build quality.
How payback is calculated here
The assumptions behind your estimate
This calculator begins from planning defaults: a 75 W normal fan set against a 28 W BLDC fan, both run for 250 usage days a year. Payback is then the price difference between the two fans divided by the electricity they save annually at your tariff and your chosen daily hours. Monthly saving is that annual estimate divided by 12, so it averages the off-season across the year. Those wattages are fixed planning assumptions, not measurements of the specific fans you are weighing. You can adjust hours, tariff, and both prices above. Real rated power differs from model to model — the BLDC vs normal fan guide shows how to estimate savings from the rated wattages of two specific fans.
What shortens or lengthens payback
The result is most sensitive to the price gap you enter between the two fans: a modest premium is recovered quickly, while a steep one stretches the timeline out. Your tariff and daily hours decide how much each saved unit is actually worth, so the heaviest users on the costliest electricity reach payback first. The estimate leaves out repairs. To see how a possible controller repair could change a longer-term comparison, read the payback guide with a repair scenario. It treats repair as a separate illustration, not a calculator input or a predicted event.
Is a BLDC fan the right choice?
There is no single answer for every home. The case is strongest in rooms where a fan runs for many hours a day; for a guest room or a space used only occasionally, savings accumulate slowly and the upfront premium is harder to justify. Efficiency is also not the whole picture — BLDC fans are not flawless, so it is worth reading about common BLDC fan problems before committing.
Common questions
How much electricity does a BLDC fan save per month?
With this calculator's fixed 75W versus 28W assumptions, eight hours of daily use on 250 days saves about 94 kWh a year. At ₹6–₹8 per unit, that is ₹564–₹752 a year, averaging about ₹47–₹63 a month across the whole year. Actual savings depend on the specific fans' wattages and use.
How long does a BLDC fan take to pay back?
It depends on the two prices, hours, tariff, and actual fan wattages. Under this calculator's 75W versus 28W and 250-day assumptions, a ₹1,500 price premium at eight hours a day and ₹8 per unit takes about 24 months to recover through electricity savings. The tool does not include repairs.
Is a BLDC fan worth buying in India?
It can make sense when the fan runs for many hours, its price premium is manageable, and local service is available. Compare models with suitable sweep and air delivery, then check controls, warranty, prices, and expected electricity use. Savings and payback are estimates, not guaranteed outcomes.
What wattage does a normal ceiling fan use?
This calculator uses 75W as an older induction-fan planning example. It is not a current BEE star-rating claim or the wattage of every normal fan. Check the rated watts and air delivery on the exact model's label.
What wattage does a BLDC fan use?
This calculator uses a fixed 28W BLDC example. Rated wattage and air delivery vary by model and speed, so check the label of the fan you are considering. The calculator does not accept model-specific wattages.