The Sartenejan region has many advantages for the use of solar
the highest level of sunlight in mainland Belize.
a low transmission efficiency through the 45 mile long power lines
from the nearest large town.
low power usage per household.
The power usage in most home in
Sarteneja at night is for lighting, fans, refrigerators, televisions, and computers, as
stoves are generally gas.
Air conditioners are not yet generally
used in Sarteneja and are not the preferred option for house cooling. Good house design can negate
the need for air conditioning.
The use of direct solar heating of
water avoids high electricity usage.
The ability to sell solar
electricity to the mains supply during
the day would greatly increase the economic potential and pay off time of solar energy
installations in Sartenejan region.
Solar water heating
economical and practical to build simple water solar heating units that can return the required
capital investment in between 2 and 4 years. The time period will be defined by the balance
between the required capacity and the capital cost using the most economical, reliable, and locally
Such units would basically consist of a solar
heater panel or coil that is optimally designed for the climate and capacity, a storage tank for
the solar heated water. Water can be fed into the house through gravity or
More sophisticated designs can include a mains
pressure exchange coil within the solar collection tank to supply services. This enables the solar
collection tank to be used to store very hot water for supply over extended periods of cloudy
A heating coil can be included in the units
design to boost water temperatures during periods of heavy use or during rare cold cloudy