[RE-wrenches] Conduit Fill Calculator

[Howie Michaelson]

Jason,
Another nice App. Very much appreciate your generosity in sharing!

Howie Michaelson


On Mon, Apr 20, 2026 at 6:42 PM Jason Szumlanski via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> 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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