Ground-mounted solar panel installations cost about $46,041 on average before incentives. They're usually more expensive than roof-mounted systems, but can maximize your renewable energy production depending on your roof's orientation and shading. But ground-mounted panels also let you dial them into exactly the right direction and angle to maximize sun exposure, which can. . Ground-mounted solar systems offer flexibility and optimal energy production, making them an excellent choice for properties with ample open space. Businesses can expect to pay $150,000 to $500,000+ for a ground-mounted solar system. Commercial and. . These SMA inverters combine PV and battery functions in one compact unit, offering models from 3. 5 kW for residential and small commercial solar energy management. Choose our permit service to have detailed engineering plans and permit documents drawn up for you.