According to Mazda's specs
According to Mazda's specs dated Feb 7, 2023 that they sent to dealers, CX-90 PHEV will travel 37 km (23 miles) running solely on electric motor on a full charge. Not great but may be OK for short distance running errands. I got a copy of the specs from the dealer where I have ordered my CX-90 PHEV on a leap of faith. LOL