Donegal had just 40 electricity-power cars registered last year, according to the latest figures.
The figures include all electric, hybrid and plug-in electric cars.
The most popular are hybrid cars which allow owners to switch between an electric motor and traditional petrol/diesel engines.
Charging points have been installed in many parts of the county, but the uptake is still slow.
One of the reasons is that the electric cars have a limited range and are still seen as being more geared towards short distances and city traffic.
Nationally there were almost 1.800 electricity power cars registered last year – with almost half of them being in Dublin.
According to thejournal.ie the figures were circulated by Finance Minister Michael Noonan recently.
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