this is my 1st attempt at building a space elevator prototype, the space chair. here it is at the elevator games in mountian view, california 2005. there are 2 solar arrays. the 'black' one was built by InfinET overnight 1 day before the contest to give us an extra boost of solar energy. it weighs 3x less than our 1st design and puts out more energy. both arrays costs approx $2500 each. the wheelchair frame with everything attached weighs almost 70lbs. a little heavy. but this prototype will lift one person given enough solar energy. 10kw spotlights aren't strong enough.