For maximum sun exposure in Hawaii, PV Solar panels need to face true south rather than magnetic south. If your roof faces east or west, while not ideal you can still generate a very high percentage of total possible sun power. It is perhaps more important to make sure the solar panels are installed on the same plane as the roof pitch or roof direction, as opposed to building mounts to awkwardly angle the panels.

do solar panels need to face south in Hawaii

The earths tilt on its axis and Hawaii's location just north of the equator, results in a sun arc / path that changes throughout the year. The sun will be at it's highest point on June 21st, or the Summer Solstice.

As most photovoltaic and solar hot water systems ( solar thermal ) are stationary, it is vital that your solar system has unobstructed sun access during the hours of 8 am to 4 pm.

Read more of our solar frequently asked questions.