Adema Technologies, a US-based indirect subsidiary of solar cell maker E-ton Solar Tech, has received a contract from Frito-Lay to install a 1.7MWp solar system at a plant in the US state of Arizona, according to industry sources. The solar project will be separated into three parts: a 240KWp system covering its parking area, 25KWp at the plant entrance and a 1.435MWp solar plant.