Is installation of a ground-mounted solar array a DIY project?

Planning and Design Considerations

Before embarking on a DIY ground-mounted solar array installation, it’s essential to assess your property and determine the optimal location, considering factors such as sunlight exposure, wind direction, and electrical load. You’ll need to calculate the required capacity and choose the right size and type of solar panels, mounting hardware, and inverters. A thorough site analysis will help you decide on a suitable array configuration, whether it’s a single-axis tracker or a fixed tilt system. As a general rule, a single axis tracker system requires more complex engineering and installation, while a fixed tilt system is more straightforward.

Site Preparation and Installation

To ensure a stable and secure installation, you’ll need to prepare the site by clearing the area, marking the panel locations, and digging holes for the foundation. For a typical 10 kW system, you’ll need to excavate holes for the anchor bolts, spaced approximately 3-4 feet apart, with a depth of about 6-8 feet. Next, install the mounting brackets, secure the solar panels to the frame, and connect the electrical wiring according to the manufacturer’s instructions. Use a level and plumb to ensure the panels are properly aligned, and double-check the electrical connections before energizing the system.

Safety and Electrical Considerations

When working with electrical components, prioritize safety by following the National Electric Code (NEC) guidelines and taking necessary precautions to avoid electrical shock or injury. Install grounding rods and bonding jumpers to ensure a safe electrical path. Use wire nuts or connectors to secure electrical connections, and label all wiring and connections for future reference. It’s recommended to hire a licensed electrician for the final step of connecting the array to your electrical panel and inverter.