For a precise method use the second formula on this page to calculate tilt angle.
Calculate best angle for solar panel.
This is because the sun is always in the southern half of the sky in the northern hemisphere.
Select your country from the list.
There s a simple rule of thumb for calculating the best tilt angle for fixed mount solar panels.
If you have selected america or canada select your state or province.
San francisco ca 94016 31 8.
Subtract 15 degrees from the latitude at your location during summer and add 15 degrees to your latitude during winter.
Concord nh 03301 35 93.
The answers you end up with are the best angles for each particular season.
Select the town or city nearest where you live.
Little rock ar 72002 29 5.
For the best results solar panels should be oriented towards the south.
While the angle of your solar panels is important a more important factor in your energy production is going to be the direction your panels face.
For instance if your latitude is 34 the optimum tilt angle for your solar panels during winter will be 34 15 49.
Denver co 80014 33 3.
The summer optimum tilt angle on the other hand will be 34 15 19.
Orlando fl 32789 24 78.
You ll find that ideal panel tilts can vary between 2 3º inclination at a latitude of 25º to 16 2º at a latitude of 40º and 25 5º at a latitude of 50º.
Solar angle calculations for winter.
Latitude x 0 9 23 5 degrees.
The calculator will then show the optimum angle for the solar panel.
Birmingham al 35005 28 59.
Salt lake city ut 84044 34 07.
Once you have figured this out you can use one of the formulas below to calculate the best angle for your solar panels for each season.
Latitude x 0 9 29 degrees.
Multiply your latitude by 0 93 then subtract 21º.
Orientation of the panels.
Las vegas nv 88901 30 58.
The optimum tilt angle is calculated by adding 15 degrees to your latitude during winter and subtracting 15 degrees from your latitude during summer.
To find out the best solar panels angle for summer use the following formula.