Water is heated in 3 steps:
The parabolic dish will be constructed out of fiberglass, which is chosen because of its ability to form to any mold. The entire concentrator system is limited in size because of the parabolic dish. The largest mold that is practical to make in house is limited to a 1.2 m (4 ft.) x 2.4 m (8 ft.) plywood sheet.
The reflective material to be used for the project is a silver polymer film. This film reflects 94% of the solar spectrum and lasts 10 years in an outdoor environment. This particular material is chosen for its extremely high reflectivity and flexibility of application. The film has an adhesive backing that can be applied easily to any surface.
The horizontal mount system has two axes of movement that independently track the altitude and azimuth motion of the Sun.
The receiver for this system acts as an absorber, boiler, and heat storage unit. A cavity type absorber is used due to its high absorption efficiency and low heat loss. Surrounding the absorber inside the receiver is sodium nitrate which acts as a heat transfer and storage media and copper tubing was coiled through it. The working fluid is pumped through the tubing where heat is transferred to the fluid.
Movement of the parabolic dish was accomplished by two satellite dish linear actuators.