> Pipistrel (electro) did it for their ultralight.
The Pipistrel Alpha was the aircraft I immediately thought of when I saw this AOPA press release. A Light Sport Aircraft (LSA) already FAA certified.[1] The Sustainable Aviation Project currently uses a few of them.[2]
Edit: Actually in the US the Alpha is only certified as Experimental.[3] Other jurisdictions have different certifications.[4]
But also LSA-approved-for-training, I think. There's a flight school in the US using them.