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Very High Tech - Elevator Garages in an NYC Hi-Rise
theodp writes "If the hassle of getting groceries from the parking garage to your 12th floor condo has been holding you back from buying a deluxe apartment in the sky, wait no more. Wired reports on the En-Suite Sky Garages at 200 Eleventh Avenue (Flash) in Chelsea, where an 8,000-pound-capacity freight elevator will whisk your Bentley directly into your pad. The convenience doesn't come cheap — a garage-equipped 2BR starts at $4.7M."
Units, units my friend. While watts is a unit of power, it is not a unit of energy- you probably meant to think kilowatt-hours.
Your equation for energy required to lift a car was wrong- regardless of the units you put on the end, Work = F*distance, not F*time (which is change in momentum)
Your calculations *should* have been:
Work required to lift a 1000kg car 50 meters: W = mg(deltaH) = 1000 * 9.8 * 50 = 490kJ
Work required to lift your car every day for a year: 178.85MJ
In more familiar units, since 1 kWh = 3 600 000 J,
Energy required to lift the car: 0.1361 kWh
Energy required to lift your car per year: 49.68 kWh
Energy required for 100 units: 4.97MHh