no way I'd do it myself. even thou I have the full knowledge of it.
I could definitely do it on a smaller scale if not on a modern house roof with 2 guys helping me.
- If you are planing to do on-grid solar setup for your house, and looking to sell back to the grid, then get a reputable Vendor to do it.
- If you know electric, you want something small and off-grid and you have a few electricians to help you, then yeah you can do it.
unless you are expert like the other guys posting in this forum, just hire.
my house setup was 6 guys working on it, took almost whole day.
they started with
1. Roof rails, drill holes in the roof, attach rails
2. Attach panels
3. Wiring, and conduits
4. Dedicated Grounding rod (I now have 3 ground rods in my house, the more the better: built-in the House, EV chargers, Solar)
5. panels, inverter, meter.
and of course, they left many holes not fully closed in roof, normal in Thailand that 99% of engineers cannot finish the job, always leave something undone or half done