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 CS3Y-465P leverages Monocrystalline technology to achieve 20.31% module efficiency and 465W maximum power. Key specs: Voc=52.2V, Isc=11.43A, Vmp=43V, Imp=10.82A. Warranty: 25 years.