Our existing solar system is 20 years old and needed to be updated. I contacted Wind and Solar (NAZ Solar) in Flagstaff for advice and cost for a new system and they recommended a Hybrid Sol-Ark inverter with 400-watt solar panels and had all components in stock. We ordered the new system, and I started taking the old one down. Existing main panel with solar disconnect. Old solar panels. Existing inverter. Next 3 is the existing 20 year old panels. Existing 18 panels are 175 watt. It took 2 weeks to take the existing system down and to receive the new components. New 18–400-watt panels are 5' 8' tall and 3' 8' wide and too large for me to handle myself. My son and 2 of my grandsons came from California over the weekend to put the new panels in place. New Sol-Ark 15K inverter and battery system. Below is the existing support system that was reused. Hop this new system will last another 20 years.