According to figures published by the government on Friday, last year 386 electric vehicles and 714 plug-in hybrids were newly registered.
The figure rose from 139 and 170, respectively (or 309 combined).
Starting 1 January 2018, Luxembourg is offering a €2,500 tax allowance on the purchase of a plug-in hybrid or electric vehicle.
There is also a tax bonus for zero-emission company cars (outside of leasing).