2.5.1 Always get the design drawings

A lot of U.S. solar companies refuse to hand over the design package and permit drawings. That locks you in: future troubleshooting, maintenance, or expansion all have to go through them, at premium prices. If they go bankrupt, you have to start from scratch with no documentation.

In reality, solar maintenance and replacement work is not that complex. With the design package in hand, a third-party technician — or even you yourself — can diagnose and resolve most issues.

Get a copy of the design drawings as soon as the install is finished.