Stefanie Kivelin, base energy manager, holds onto the generator while Alyna, 10, powers the water wheel, as, from left, Jade, 9; David, 10; Donovan, 9; Arianna, 8; and Mylee, 10, watch to see how their creation works. - Stefanie Kivelin, base energy manager, holds onto the generator while Alyna, 10, powers the water wheel, as, from left, Jade, 9; David, 10; Donovan, 9; Arianna, 8; and Mylee, 10, watch to see how their creation works.