cadmium-telluride and copper indium gallium diselenide.1 Solar
thermal technology uses solar heat, which can be used directly
for either thermal or heating application or electricity generation.
Accordingly, it can be divided into two categories: (i) solar ther-
mal non-electric and (ii) solar thermal electric. The former includes
applications as agricultural drying, solar water heaters, solar air
heaters, solar cooling systems and solar cookers2 (e.g. [14]); the
latter refers to use of solar heat to produce steam for electricity
generation, also known as concentrated solar power (CSP). Four
types of CSP technologies are currently available in the market:
Parabolic Trough, Fresnel Mirror, Power Tower and Solar Dish Col-
lector [15-17]