What is the minimum array area requirement for a solar PV inverter?

Although the RERH specification does not set a minimum array area requirement, builders should minimally specify an area of 50 square feet in order to operate the smallest grid-tied solar PV inverters on the market.

Do you need a pull line for a solar PV system?

To facilitate the wiring of the solar PV system at a later date, the builder may also want to include a pull line in the conduit, particularly if the conduit run is lengthy or has multiple bends.

What documents should be included in a solar roof plan?

At a minimum, these documents must include specific documentation of dead loads, live loads, wind loads, and, where applicable, snow loads for the existing roof design. These plans will provide important information for the solar designer when the homeowner decides to install a system.

Why do I need to document the as-built solar access?

Why? To document the as-built solar access, verify that shading issues were properly dealt with in the design and installation, and to bring to the attention of the system owner and O&M team the potential for shading issues in the future due to vegetation growth, nearby construction, or modifications to the building on which the array is mounted.

Can a solar array be installed on a pitched roof?

If the proposed solar array location is on a surface that does not fall under the specification’s basic assumption of a single family home with a pitched roof that offers adequate attic access, EPA recommends that the builder consult with a certified solar energy professional when evaluating the home.