[RE-wrenches] solar lease questions

Darryl Thayer darylsolar1 at gmail.com
Sat Dec 17 16:56:45 PST 2022

Hi all,  not enough information.
Does her grid allow export?
Does she have a period of poor sun?
What is her daily or monthly consumption?
Is there an AC  or DC limit on connected solar power?
Will her AHJ or Utility allow line side tap?
The system seems to be poorly designed.  Power Walls are AC coupled, the
large array would clip all day and only have advantage in the shoulders, a
smaller array and bigger inverters?
This design depends upon Utility and AHJ   thank you have a nice day.

On Sat, Dec 17, 2022 at 5:35 PM jay via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> HI All,
> I”ve got a friend in hawaii, big island near Kona  that is looking at a
> sun run lease and she’s asking me questions.
> I’m not that familiar with the electric rates nor the games that Sun Run
> is doing.
> They are pushing a 20 yr lease with the following system:
> 38 x 400 watt panels
> 2 x SE 3.8kw
> 2 x power wall
> it will offset 120% of her load
> loan is $398 month/ 20 yrs which is $95,000
> My first really big question is thats 15.2kw on 7.6kw of inverter?  That
> doesn’t sound right, 2 x DC/AC ratio?
> Does it make sense to have the batteries?
> And if you paid for the system outright, what would that be in Hawaii?
> Any and all help and advice is welcome,
> or if there any installers near there, that would also be helpful.
> thx
> jay
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