Estimate the ideal spacing between rows of solar panels to minimize shading and maximize efficiency based on latitude, tilt, and panel height. Formula: Spacing = Height / tan (Solar Altitude).
If your roof isn't at the right angle, doesn't face south, or has obstructions like chimneys or skylights, your solar panels won't generate maximum electricity.
For an inverter with 1200W power, a system voltage of 12V, a cable length of 20 feet, and a maximum voltage drop of 3%, the required cable size would be approximately AWG 4. This tool is particularly important in solar power setups, RV installations, and other systems where inverters.