Compare solar panel quotes

Hello everyone,

Newbie here. Need help compare some quotes on solar panel installation. All prices are cash prices.

Thank you for the help!

All it's missing are eggs and rice!

Assuming no difference in installation warranty and/or uptime guarantee from the installers for quote 1 and 5, go with quote 5.  LG is Bloomberg Tier 1 with highest output warranty of the modules listed after 25 years (84.8%). 

SolarWorld has been struggling with insolvency lately.  Hyundai 290W modules are a few years old and only provide 80% output warranty after 25 years.  Panasonic is not Bloomberg Tier 1 and the 5 kW inverter is oversized for a 5 kW DC system.

Kings said:

Assuming no difference in installation warranty and/or uptime guarantee from the installers for quote 1 and 5, go with quote 5.  LG is Bloomberg Tier 1 with highest output warranty of the modules listed after 25 years (84.8%). 

SolarWorld has been struggling with insolvency lately.  Hyundai 290W modules are a few years old and only provide 80% output warranty after 25 years.  Panasonic is not Bloomberg Tier 1 and the 5 kW inverter is oversized for a 5 kW DC system.

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Where do you look up the panel rating Kings?

Here is the Bloomberg Tier 1 rating list from Q4 2016

If you're looking for specific panel ratings every manufacturer has a spec sheet on their website.

Curious did they up-sell you to use micro-inverters?

Or is there a specific shading issue that warrants the extra cost?

The thing to keep in mind is that micro are installed with the units, so if anything goes wrong then someone is going up on the roof for repair, plus it's an extra unit per panel so additional failure points that could be potential headaches.

Unless there's a specific reason you need them, then a single ground inverter would suffice find and will save you some $$$.

Good luck!