With enhanced-efficiency cells it charges 12V batteries (or multiples of 12V) efficiently in virtually any climate. Its unique IntegraBus™ technology provides added reliability through reliable outside bussing and by reducing diode and module temperature during module shading. The BP 3140 is used in remote systems for applications including telecommunications, pumping and irrigation, remote villages and homes, and land-based aids to navigation. It is also used in utility-grid supplemental systems for residences and commercial buildings.