As you are aware, the sun rises from the east and sets in the west. During the regular tracking though, the sun moves towards the north, making north the best face to maximise your solar gain.

Another factor to take into account when optimising your solar gain is the season. As you can see in the diagram, solar gain in summer is higher due to the position of the sun. In winter, the sun is further north, however the angle is not as optimal compared to summer.

This being said, if you have northern facing roof space free from any obstructions such as trees or buildings, then you should opt to install solar panels there, so that you are guaranteed the best solar gain.

Solar Gain and solar panel direct

Solar gain and solar panel directional losses

  • You can also install solar panels on the east and the west facing front

It’s not uncommon to have solar panels installed on the east or west facing sides of your home or business. Although the solar gain is lower, the directional losses are not that great.

  • The solar panel directional losses for north-east and north-west vary from around 3% to 4%.
  • For an east or west facing roof, your solar gain loss will be around 12% to 18%

An experienced solar installer or sales rep will be able to work out the optimum solar panel direction and angle on your property, to will give you the most solar gain and best return on investment. Although not essential, it is advised that you ask for a plan or design for your solar power system, outlining the options for installation and the exact location where the solar panels will be placed.

Solar-Gain

“What if a sales rep or installer recommends that I install the solar panels on the south facing roof?”

“I suggest you get a second opinion. Honestly, it’s a no brainer! Unless of course you live in the northern hemisphere.”

 

AustralianSolarQuotes Social Media-Share this with your friends

X
- Enter Your Location -
- or -
×

Wayne from Kellyville, NSW asked for 3 quotes for solar about 7 hours ago!

Raymond from Bomaderry, NSW asked for 3 quotes for solar about 8 hours ago!

Justine from Mulgrave, VIC asked for 3 quotes for solar about 8 hours ago!

Simon from Katoomba, NSW asked for 3 quotes for solar about 13 hours ago!

Trevor from Loxton, SA asked for 3 quotes for solar about 14 hours ago!

Kate from Kalbarri, WA asked for 3 quotes for solar about 14 hours ago!

Kate from Kalbarri, WA asked for 3 quotes for solar about 14 hours ago!

Jethro from Greenwich, NSW asked for 3 quotes for solar about 14 hours ago!

Braden from Bears Lagoon, VIC asked for 3 quotes for solar about 18 hours ago!

Chris from Ferntree Gully, VIC asked for 3 quotes for solar about 18 hours ago!

Annette from Klemzig, SA asked for 3 quotes for solar about 18 hours ago!

Andrew from Attwood, VIC asked for 3 quotes for solar about 19 hours ago!

terry from Ambarvale, NSW asked for 3 quotes for solar about 22 hours ago!

Alisa from Miami, QLD asked for 3 quotes for solar 1 day ago!

Paul from Shailer Park, QLD asked for 3 quotes for solar 2 days ago!

Paul from Shailer Park, QLD asked for 3 quotes for solar 2 days ago!

James from West Bathurst, NSW asked for 3 quotes for solar 2 days ago!

Rob from Harlaxton, QLD asked for 3 quotes for solar 2 days ago!

Bill from Wynyard, TAS asked for 3 quotes for solar 2 days ago!

Pamela from Kenwick, WA asked for 3 quotes for solar 2 days ago!