Canadian Solar, founded in 2001 and headquartered in Guelph, Ontario, is one of the few solar manufacturers with significant North American production capacity. Canadian Solar's CS3W-380P leverages Monocrystalline technology to achieve 17.76% module efficiency and 380W maximum power. Key specs: Voc=46.4V, Isc=10.58A, Vmp=37.9V, Imp=10.03A. Warranty: 25 years.