Three reproducible seasonal scenarios
| Scenario | Published inputs | Annual energy | Annual cost |
|---|---|---|---|
| 35 W for four hours on 120 active days | 35 W; 4 h/active day; 120 active days/year; 100% duty; quantity 1; 0.5 W standby for 20 h on 365 standby days; $0.18/kWh | 20.450 kWh | $3.68 |
| 60 W for eight hours on 180 active days | 60 W; 8 h/active day; 180 active days/year; 100% duty; quantity 1; 1 W standby for 16 h on 365 standby days; $0.18/kWh | 92.240 kWh | $16.60 |
| 75 W for twelve hours on 240 active days at 80% duty | 75 W; 12 h/active day; 240 active days/year; 80% duty; quantity 1; 2 W standby for 12 h on 365 standby days; $0.18/kWh | 181.560 kWh | $32.68 |
$0.18/kWh is an illustrative comparison rate, not a national or current market price. Scenario inputs are editable arithmetic fixtures and are not product-population claims.
What changes the result?
Fan speed, motor design, a lighting kit, remote or connected controls, quantity and the operating schedule all affect electricity use. If a light kit is included, model its electrical input deliberately rather than assuming the fan-motor value covers it.
Measurement and standby
Use model-specific electrical input or measure representative operation by speed when this can be done safely. Remote-control receivers may draw power while the fan is off; enter or measure that standby separately. The seasonal model never infers standby days from active days.
Calculate your ceiling fan’s seasonal electricity use
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Last reviewed: August 14, 2026