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M Solar Power
Sun, 29 Nov 2020 / Published in Solar Education

EAST WEST FACING SOLAR PANELS CAPE TOWN

EAST WEST FACING SOLAR PANELS CAPE TOWN

We are proud to have commissioned and east west facing solar panels system in Brackenfell just outside Cape Town providing which is contrary to the traditional belief that north-facing solar panels are best.

Noth Facing solar panels may be best at providing peak power but in a zero export and low feed-in tariff environments like the one we find on either the city of Cape Towns grid or that of Eskom’s producing power for longer is the name of the game.

The advantage of east west facing solar panels is that start generating more meaningful power two hours earlier in the day than north-facing panels and continue to produce meaningful power late into the early evening this allowing us to greatly reduce our power draw from Eskom or the City of Cape Town while avoiding throttling excess solar generation or ‘selling’ it to the grid for a greatly reduced rate.

East West Facing Solar Example

East West facing solar panels do produce less power but these days solar panels have become relatively inexpensive with inverters allowing you to over solar your inverter buy up to 150% allowing you to easily and relatively low cost install additional solar panels to make generation shortfall.

The other benefit is that a lot more roof space is available for solar panels.  For clients with east west orientated roofs, it doubles the amount of roof space available to install solar panels and for homes with limited or flat roof spaces, it provides additional solar panel space on roofs traditionally where thought of as non-solar friendly roof spaces.

Glass on Glass

In the estimated solar power output examples below you can see that in low tilt angle roofs there is a minimum reduction in solar power output with the benefits described far outway the loss of output and easily countered by installing additional solar panels.

10kW Solar Panel Output Cape Town
OrientationAnnual kWhDifference%
North18475
East177207554.09%
West178576183.35%
South East1726112146.57%

10kW North Facing Solar Panel Example

10kW East West Facing Solar Panels Example

  • Posted by M Solar Power
  • On November 29, 2020
  • 0 Comments
  • Cape Town, East West Facing Solar Panels, PERC, PERC Mono, solar panels

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