Can any recommend a solar energy system that is truthfully viable in hard economic terms?
Since you have plenty of sun and need hot water all year round your home needs to conform to the design of the system. The thermosiphon hot water solar system is the best, Requires no electricity and no moving parts. The tank must be above the solar collectors and the panel should have a lot of sun facing the southwest if you are in the Northern Hemisphere. The cost is dependent on the size of the system. Rule of thumb is 20 gals per person per day in solar tank size. Panel size is one square foot of panel for each two gallons of hot water if you are in the tropical zone.
