Sale of Renault electric vehicles aren't looking too optimistic these days and this does raise some doubts on the feasibility of the ambitious electric plans of the French manufacturer.

In preliminary statement of sales, Renault announced that, in May, it delivered about 1,750 electric vehicles globally.

Renault Zoe

Renault Zoe

Unfortunately, this means it's now the the second consecutive month-to-month decline for Renault in EV sales.  Even worse though is the significant decline in year over year sales for all of Renault's EVs except Zoe, which has only become available recently.

Here's a rundown of how Renault's particular electric models have been performing in regards to sales.

Renault Zoe

In May, Zoe was, for the third time in a row, by far the best-selling model in the Renault range of electric vehicles. Sales reached 931 units, which is slightly higher than in April, but still almost 300 units lower than the March record.

Four solid months will likely be enough for Zoe to overtake, by the end of June, the Fluence Z.E. in terms of the cumulative number of delivered units, which exceed 3,500.

Renault Fluence Z.E. and Kangoo Z.E.

Renault Fluence Z.E. and Kangoo Z.E.

Renault Fluence Z.E.

In May, sales of the Fluence Z.E. had completely broken down. The cause is, of course, the bankruptcy of Better Place.  Only 40 were sold in May, including 22 in Europe and 0 in France.  The future of this model is definitely questionable.

Renault Kangoo Z.E.

Sales of the electric Kangoo fell down in May to 397, which is about 35-40% lower than a year ago.  The total number of delivered Kangoo Z.E. in Europe since the beginning of the production has reached a level of approximately 9,000.

Renault Twizy

This year, the Twizy is not faring as well as in 2012. In May, Renault delivered just 376 units, about four-times less than in the same month last year, when customers bought around 1,550 Twizys. Sales declined drastically in all of the largest markets in Europe.

However, the Twizy is the first of Renault's electric vehicles to have cumulative sales of over 10,000 units.