There aren't ones that are passive solar, from Excalibur at least. There is a
French website that has some products that claim to be solar dehydrators for sale, but they aren't indoor and I don't know how well they work. There are also a
PDF and video with plans and how to build one on that site too. Any passive solar dehydrator will most likely need to have at least some of it outside.
I doubt there's an electric one that comes with its own solar panels. Excalibur is A/C electric only, so for PV solar you'll need an inverter as well as the PV panel(s) to power it. Back in 2017 I got a 5-tray Excalibur electric dehydrator that only uses 440 Watts of power and used it in our solar powered RV travel trailer when we were full-timing it in the RV for several years. No longer full-timing it, but still use it. I'm not seeing it on their website, but there may be others that have lower wattage. I looked into all the models at the time to find one that uses full sized trays, but as little energy as possible. I believe there was a 4 tray model that used about half the power 200, 220, something like that, but it used smaller trays and I wanted to standard sized ones so passed on that. I did take a while deciding on that one though.