I did a quick check using nrel s pvwatts tool and it looks like in placentia ca there s about a 10 difference in favor of flat south facing panels over east facing panels installed on a 30 pitched roof.
Do i put solar panels facing the south.
Do you have to have a south facing roof to have solar panels.
We also took at look at a tilt angle of 40 for the south facing orientations mainly just to show that a south facing roof with a steep pitch is probably not a good place for solar panels.
In the uk south facing panels will generate more than other orientations.
One solution is to compensate by increasing the solar collector area either using more panels or larger collectors.
We designed and modeled the system in helioscope our sales and design software platform.
The results backed us up on this theory showing poor.
If your roof faces east west rather than north south you have a few options.
For years homeowners who bought solar panels were advised to mount them on the roof facing south.
Solar panels perform at their best when the sun is shining straight on to the panels.
The flatter a south facing roof is i e.
How much worse are north facing solar modules.
The closer to horizontal the better it will be for solar.
Increase the south facing tilt to 15 and south facing becomes 21 better.
When the sun shines onto the surface at an angle the panel will still generate electricity but it will be less effective.
That captures the most solar energy over the course of the day which benefits the homeowner but.