Slope Of Roof For Solar Panels

So for this roof the optimum angle is 35 a bit over an 8 12 roof slope and at this angle the roof generates 1 265kwh m2 day.

Slope of roof for solar panels.

However the panels can be installed anywhere between 10 to 35 deg with negligible efficiency loss. At 30 the energy drops to 1 260kwh m2 year a reduction of just 0 4. The size of the path along the ridge depends on how much of the roof is covered in pv panels. Your solar panel installers can help determine if your roof slope is suitable for solar panel installation.

Optimal electricity production occurs when solar panels face south at a tilt equal to 30. The angle of your roof actually has less impact on solar panel performance than the direction your solar energy system faces. The energy reduces as we move away from this optimum angle. The orientation of the panels and the angle they are tilted will have a greater effect on annual energy production.

A roof slope that angles between 15 40 degrees should suffice for most solar power systems. However even if you lower the tilt of your roof all the way down to 5 production only decreases by about 10 percent. Most australian homes have a roof pitch of 20 to 30 which is considered optimum for maximizing solar power generation.