PVkingdom has set up a strict quality control system to ensure the quality of products and engineering.

• 5 levels of quality control
• Photovoltaic product quality acceptance
• Quality Inspection of PV Mounting system installation
• Photovoltaic array layout and installation inspection
• Cable laying quality inspection
• Lightning protection, grounding and electrical installation quality inspection

• 26 standard construction procedures to ensure the quality and safety of the PV system including but not limited to the following procedures:
• Review the drawing
• Material planning
• Make construction plan
• Install the PV mounting bracket system
• Fix the junction box
• Laying cables
• Laying PV modules
• Fix the modules into the mounting brackets
• Connect cables to the inverter
• Install the inverter
• Install the meteorological instrument
• Install the step-up substation
• Commissioning of the PV ESS or the PV power stations