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Well obviously it depends on the mass being lifted, which is the elevator itself, the people in it, and their luggage if any. If the height of one floor is say 3 meters, the amount of energy used will be M x 9.81 x 3 Joules. M=mass in kg, 9.81 = the gravitational acceleration in meters/sec2. Let this energy be E Joules. 1 Joule = 1 watt.sec, so we have E watt.secs, then you can scale this to KWh (kilowatt.hours), and so get a figure for the amount of electricity used, then multiply this by the cost per KWh.
Taking a figure to get the ball park area, I would guess the elevator and 4 people plus luggage at 2000 kg. Then E = 58,860 Joules = 58,860 watt.secs = 0.01635 kilowatt.hours. (3600 seconds in 1 hour). So it is a small amount of electricity and a small amount of money, the exact amount will depend on what your electricity costs per unit (one unit is usually 1 kilowatt.hour)
Wiki User
∙ 15y ago
Wiki User
∙ 15y agoTo find out how much energy is needed, you must use the formula for gravitational potential (Ep=mgh). This expands to: The potential energy in joules is equal to the mass of the subject (presumably you) (in kilograms), multiplied by the acceleration of gravity (9.81m/s² on Earth), multiplied by the height of the staircase (meters).
Wiki User
∙ 14y agodepends on elevator size
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