No, its not your building. Wind power is good in the desert, they cant be heard or seen by anyone. They don't belong in urban settings.

Assuming you own the property – I'd call or check online with the city first to see what regulations are in place. If it's a go, I'd start talking to a contractor.

Find out the cost first, then if it will be worth it check with the building code enforcement in Queens and ask if there is any ordinance that prohibits it. They must be able to point out a specific ordinance that CLEARLY does not allow it.
New York is a tough place to do anything that might make sense, but Good Luck
I heard from a friend that a company is making them with a 20 year life span for around $ 8 thousand. ( 20 yrs without any major service)
Good Luck we should ALL have one.

Sure but you have to have enough wind to power it. The amount of power you get is a cube of the wind speed so you get 4 times as much power from a 20 MPH wind than from a 10 MPH wind. In NYC it prob isn't worth the cost.