Heliostat ->> Hands down the cheapest way to gather the suns energy

http://www.mpja.com/prodinfo.asp?number=15837+MS

MFG: SANYO DENKI

P/N: 103-771-18

COIL: 24V/.18A

TYPE: Uni-Polar 5 lead

STEP ANGLE: 1.8 deg

Used motor with a 1/4" dia. X 3/4" steel shaft. 4 corner mounting holes . 7" leads.

SQ: 2-3/16" L: 2" WT: 1.2