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Good to know! 21 is just about right size for my usage, so this would work! Thanks!

That's sweet! I wish we had that kinda production in NJ - the system would pay for itself just based on the federal and state incentives.

Thanks, interesting points that I had not considered. Btw, I double checked and stand corrected - NJ does not have TOU, but rather a tiered calculation based on usage.

Oh interesting, I thought they only installed the pre-set sizes of 4.08, 8.16, so on. If they can tailor it back to my exact use, that would make it a lot cost effective. Thanks for your advice!

We do have TOU in NJ. Per PVWatts, my east facing generates 126% over the system size, where as west facing generates 92% i.e. a hypothetical 10kw east facing system will produce 12,600 kwh and 9,200 kwh respectively.

I posted this on my original thread but thought I'd add it here, as well, as it pertains to layout question. I just spoke with my project advisor and discussed the east/west layout situation. I was told that given my usage, they designed the layout to make sure it does not surpass my...

I just spoke with my project advisor and discussed the east/west layout situation. I was told that given my usage, they designed the layout to make sure it does not surpass my historical usage. So, essentially, rather than optimizing the production, they are designing the layout to just generate...

Got it! I did a sample of 3kw system east facing and then west facing. An east facing would generate 3,624 kwh where as west would generate 2,750 kwh. Significant difference! Wonder why Tesla put 9 panels on the west facing roof when they could have adjusted at least 5-6 more panels on the east...

I am trying to finalize between installing Tesla and a local vendor that uses LG360 Neon 2 panels. Both are using different layouts, so wondering if Tesla is optimized. My house is east/west facing, and the local vendor plans to install all 20 panels on the east facing roof which gets the most...

I plugged in the 7.2kw LG360 system data into PVWatts (Tilt 30; Azimuth 120) and it shows production of 8,698. For a 8.16kw Tesla system, it shows production of 9,858, This against the Tesla quote of 7,549. So wondering if Tesla is being modest, or their panels do indeed generate less?

I have a east-west facing roof. East side gets sun 5+ hours, and west probably 4+ hours. Thanks for pointing me to the "post your layout" thread. Will post it there.

In the same situation as OP - trying to see if Tesla solar panel installation might be the right option. I am strongly considering a local vendor who installs LG panels and Enphase microinverters for $2.29 (before federal & state rebates), where as Tesla at $2.01. I am more comfortable...

I am in the process of getting Tesla panels installed on my roof. I'm getting a 8.16kw PV system which will generate 7549 kwh. I find this number underwhelming, as other installers have quoted a much higher generation for similar system size. Is Tesla quote conservative, or should I expect...