If the open-sourced OnGrid Tool helps you, please consider donating to Slow Power / Mike (its host) — thru Slow Power's Give page.
Mike would really appreciate the support.
It will put him in a better position to support open-source OnGrid Tool users.
It'd also help him continue offering free resources thru Slow Power (including, hopefully, free-and-open-source energy modeling software built for year 2026+).
Thanks for considering.