I got a quote from Signature Solar for a DIY solar system, and they're offering it at $1.02/W, which seems like a great price compared to the $2.50+/W quotes from full-install companies I've received. The setup includes 29 Silfab 430W panels, 14+1 Aptos MAC-800/400 microinverters, along with Iron Ridge hardware, Aptos trunk cable, and the Aptos DTU WiFi. I'm looking for feedback! Here are some initial points I have: 1. They didn't include any permit designs or line drawings, which I understand are necessary for local permits and inspections. 2. There's no mention of disconnects or the AC breaker load center, which may be required in my area. 3. I noticed they didn't list any details on conduit, fittings, or wire gauge, so I might have to buy those separately. 4. Lastly, there's no rapid shutdown label kit or placards mentioned, which are usually required for compliance. I'd appreciate any suggestions or additional questions I should consider!
2 Answers
That price is definitely on the lower side, but make sure you do some research before jumping in. It's smart to get plans from a service like Greenlancer to submit for your local permits, which can cost between $300 to $800. I recommend holding off on any purchases until your plans are approved, especially if you’re aiming for a permitted system. As for microinverters, I’ve heard they can be problematic, so I might suggest looking into alternatives like Gridboss and Flexboss21. Also, check if your utility still offers net metering!
Definitely ask your city for samples; they might just give you some useful info! And don’t forget to check if the quote includes racking components, as that can add quite a bit to your overall cost. You don’t want to end up with a great panel deal but spend as much on the racking system later.
Yes, the quote includes rails, deck mounts, splices, clamps, and all that good stuff! So at least that part's covered.