The spacing of photovoltaic brackets is usually between 2. This is to ensure that the front and rear rows of brackets will not block each other's shadows, thereby ensuring the light utilization rate of photovoltaic modules.
The best way to install solar is through a qualified professional who holds a certification to do so and works with high-quality solar panels. The industry-standard certification is awarded through the North American Board of Certified Energy Practitioners (NABCEP).