In Kildare, Dublin and Meath they make up one in six and one in seven new car registrations.
There's a call for drivers in rural areas to get larger grants towards the cost of electric vehicles.
Former Environment Minister Richard Bruton believes the government needs to 'double down' on electrification.
Since 2020 just one in 29 cars sold in County Roscommon was electric.
In Kildare, Dublin and Meath they make up one in six and one in seven new car registrations.

Uisce Eireann Says No New Connection Works at Ryevale House, Leixlip
Local Authority Tenants Must Get Permission Before Installing Video Doorbells, Says Kildare Council
Nearly €400,000 Owed On Derelict Buildings In Kildare-Newbridge District Alone
After Fertility Loss, Care Barriers Remain For Women With Endometriosis, Says Local Woman
Over €200,000 Awarded To The Conservation Of Three Historic Buildings In Kildare
€8.5m Wastewater Upgrade To Enable 900 New Homes In Celbridge, With Traffic Disruption Until May
Four New Bus Shelters Approved For Athgarvan And Maddenstown, Pending NTA Delivery
Two Men Arrested In Garda Operation Targeting Burglaries