OPTIMAL TILT ANGLE

Photovoltaic panels are installed at an angle
The best angle for solar panels in the UK is between 30° and 40°. To ensure that your solar panels can produce energy optimally, they should be installed on a south-facing part of your roof. [pdf]
How much tilt should photovoltaic panels have to be to be effective
To optimize performance, tilt your panels at an angle that is 10-15 degrees less than your latitude. For example, if you live at a latitude of 40 degrees, set your panels at about 25-30 degrees. [pdf]
How to make a photovoltaic angle bracket
ToolsStep 1: Find the Best Tilt Angle for Your Location . Step 2: Cut the First Side of the Triangle Brackets . Step 3: Cut the Second Side of the Triangle Brackets . Step 4: Cut the Third Side of the Triangle Brackets . Step 5: Assemble the Triangle Brackets . Step 6: Attach the Triangle Brackets to the Wall . [pdf][FAQS about How to make a photovoltaic angle bracket]