I think there's a bug when combined with Bob's Power and building large solar panels.

When I remove the panel, an additional solar panel item spawns on the ground. This means I can generate infinite panels for free. The item is not the same type of panel (I believe it's "Large panel" instead of "Large solar panel", as well as a different icon) but produces roughly the same.

When I place a panel and hold left click, the placement sound loops and even more solar panels are generated.

Let me know if I should give more details and I'll take some screenshots

I will check it on the weekend, thanks for report.

They are come on every panels replacing, looks like internal bug. You can choose this entity with deconstruction planner and this items are already under the panel.

Fixed!

Thanks !