Johncfii( solar addict), he have a some question, the story is that he is getting ready to ground-mount install a bunch of new 320-watt panels to expand their system.

He asks” Is there any reason to think that solar clamps(edge clamps) are a better way to secure panels than the less expensive approach of using machine screws/nuts through the rear frame holes to secure the panels to struts? Has anyone ever had a problem, or regretted mounting using the pre-slotted rear frame hole? I used edge clamps for my roof mount because the small clearance between the panels and the roof didn’t allow easy access using frame screws and bolts. Is that the only reason edge clamps are popular? I’m thinking that if I bolt through the aluminum frame, I might use something like a 3-inch steel strip to spread out the clamping force and reduce any tendancy for the aluminum frame to tear out in case of high wind.”

Solar clamp is an option, The solar middle end clamps Easier, faster. Is it more secure? It depends on the design of the rack/clamp and the installer.

Different edge clamps have different installation methods,Each kind of solar clamps are selected according to customer needs and installation methods, which can give customers the greatest convenience.

The use of mid end clamps, not only can better protect the solar panels, and installation and disassembly are more convenient, can be used for many times.