[RE-wrenches] Conduit Fill Calculator

[Jason Szumlanski]

Thanks, all, for the positive feedback on and off list.


I have another calculator that isn't ready for prime time yet, but I'm
working on a MPPT string calculator. It pulls in panels from NREL (I only
have a subset right now), but I have to add the inverters manually. You're
welcome to try it out:

https://floridasolardesigngroup.com/mppt-calculator


Jason Szumlanski
Principal Solar Designer | Florida Solar Design Group
NABCEP Certified Solar Professional (PVIP)
Florida State Certified Solar Contractor CVC56956
Florida Certified Electrical Contractor EC13013208




On Mon, Apr 20, 2026 at 5:40 PM Kent via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> Very nice app!
>
> Kent Osterberg
> Blue Mountain Solar
>
>
> On 4/19/2026 5:12 PM, Jason Szumlanski via RE-wrenches wrote:
>
> Hi All,
>
> I got tired of using an old go-to conduit fill calculator online. It was
> too hard to use. And none of the popular mobile apps appealed to me. So I
> created my own. You're welcome to use it.
>
> https://floridasolardesigngroup.com/conduit-fill-calculator
>
> Feedback off-list encouraged.
>
> Jason Szumlanski
> Principal Solar Designer | Florida Solar Design Group
> NABCEP Certified Solar Professional (PVIP)
> Florida State Certified Solar Contractor CVC56956
> Florida Certified Electrical Contractor EC13013208
>
>
>
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