24 per watt on a solar inverter, not including labor costs. Most solar panel contractors charge around $50 to $100 per hour. . Remember: a $50 saving today might cost $300 in repairs tomorrow. " Pro Tip: Many installers offer package deals - ask about bundling communication box installation with inverter setup! Why Choose Professional Installation? While DIY might seem tempting, consider these numbers: Looking for reliable. . Expect to spend $0. You may save $1,000 to $2,500 up-front by. . A solar inverter costs $1,500 to $3,000 total on average for a medium-sized solar-panel system installation. Discover why global inverter module prices dropped 18% since 2022 and how to choose the right solution for residential, commercia Wondering how much. . The size of your solar system (measured in kilowatts, or kW) directly impacts the size—and, therefore, the cost—of your inverter.