Yes, electric vehicles, hybrids, etc. are not exempt and in the same way subject to the Slovenian toll as petrol and diesel cars.
You can now comfortably order your Slovenian e-vignette here.
Related articles:
What vehicles need a Slovenian e-vignette?
What different types of the Slovenian motorway e-vignette are available?
What happens if I drive without a Slovenian vignette?
Can I drive into Slovenia without an e-vignette if I avoid motorways and expressways?