STRATHCONA ENERGY INTERNATIONAL (SEI) photovoltaics deliver power and reliability made in North America. Built to exceed most quality or certification requirements, the SEI product suite encompasses top-performance 60 and 72 cell mono- and polycrystalline PV modules as well as all-black modules, AC PV modules, bi-facial modules for up to 30% more energy production, and an impressive portfolio of custom building-integrated PV modules.