ESPi VOLTAR 2.0 SOLAR UPS
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Technical Specifications
25
How to determine the proper solar panel angle
Several apps are available for your phone to help calculate the optimum tilt for your
panel as well as Inclinometers to verify the correct panel angle has been set. Without an
app, the information below will provide a method to calculate this for yourself.
Calculate the optimum tilt angle, based on the latitude -- your angular distance north or
south from the equator expressed as degrees along a meridian -- of your location. To
find your latitude, consult a map for your region or Google your town’s latitude.
To find the best angle for optimizing solar collection during winter, when solar energy is
most scarce, multiply your latitude by 0.89, and then add 24 degrees. For instance, if
your latitude is 45 degrees: 45 x 0.89 = 40.05 + 24 = 64.05. In this example, you would
tilt your solar panels at a 64-degree angle from a horizontal level.
Decide whether you wish to leave your panels at the optimum winter tilt all year long, or
whether you prefer to adjust them for each season. Factors that might affect your
decision include the accessibility of your PV array and whether you expect more
sunlight than you can use during the summer months, in which case you need not
adjust your tilt. If you do plan to optimize solar collection in every season, use the
following calculations: For spring and fall, multiply your latitude by 0.98 and subtract 2.3
degrees. For summer, multiply latitude by 0.92 and subtract 24.3 degrees to get your
solar panel tilt angle. The tilt is the degrees from horizontal.
An easier and more basic method is to angle the solar panel to the same degree as the
latitude where the panel is to be mounted.
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Tilt=Degrees from Horizontal
Summary of Contents for V2-20A-150W-12V-1D
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