Re: Solar panel grounding
I like the Tyco Solklamp product. Not cheap, but none of the approved lay-in lug devices are. Wiley ground washers are cheap but most AHJ's don't go for them.
Why don't the module makers build in a device? I would love it if there was a built in lug inside the frame (so it doesn't stick out and get in the way).
Putting the lugs on is always a hassle and can't be prepped ahead because you can't stack the modules once the ground lug is sticking out and also can tear into the roofing etc. I'm sure it would be a lot cheaper for the manufacturers to build it in (weld in on) and they could ensure how it is used that way. Plus the current devices do a poor job of biting through the aluminum surface to make a good gas-tight electrical connection imho.
2.7kW Trina/Xantrex GT, 3.7kW Trina/SolarEdge, 3kW CSI/SMA GT, Solar well pump on 6, 25yr old Holeck 48W modules. Toyota SR5 converted to 108V EV. Prius w/Enginer PHEV conversion. BSEE, R11-residential, NABCEP, SunnyPro >750kW installed
"Faced with the choice between changing one's mind and proving that there is no need to do so, almost everyone gets busy on the proof." - John Kenneth Galbraith