Solar panels are manufactured through a multi-stage process that includes silicon purification, ingot and wafer formation, solar cell production, module assembly, lamination, framing, and final quality testing to ensure efficiency and durability.
Starting January 1, 2020, if you're building a single-family home, a townhouse, or a low-rise multifamily building (three stories or less), solar panels are mandatory. No exceptions, no wiggle room.