The Japanese manufacturer is offering £500 off the cost of its hugely successful electric vehicle this month in order to celebrate the milestone.
It already offers motorists £5,000 towards the deposit on the Leaf, while also providing buyers with a free home charging kit worth around £390.
READ MORE: New car sales speed ahead in August
Earlier this month, the Department for Transport (DfT) revealed that record numbers of ULEVs are now on Britain’s roads, with some 9,657 registered between April and June.
This was an increase of 49% on the same period last year and a huge rise of 253% on two years before, according to the figures.
According to Nissan, its 15,000th Leaf was bought by Jenny Craik, who was encouraged to make the switch to electric by her husband, who also owns a plug-in hybrid vehicle.
The firm hit the 10,000 sales mark only last year and says demand for the Leaf is now at its highest point since launching three years ago.
Renault has also delivered its 100,000th electric vehicle five years after the French company’s first battery-powered car, the Twizy, was launched.
The landmark vehicle – a Zoe – was bought by 41-year-old Norwegian man Asmund Gillebo, whose purchase earned him five years of recharging with a local energy firm and 100,000 minutes of charging with another energy company.
Gillebo’s new car is the latest in a string of landmark achievements for Renault’s pure-electric offering, which saw more than 15,000 electric vehicles sold in the first half of 2016 alone – a 32% increase over the same period in 2015.
Around 1,200 of these vehicles found homes in the UK, signifying a 26.1% increase compared with the first six months of 2015. Of these, 1,069 were examples of the Fiesta-sized Zoe.
The Government hopes that low-emissions vehicles will play a crucial role in tackling climate change, as well as helping to improve Britain’s growing air pollution problem.
Commenting on the release of the DfT figures, Roads Minister John Hayes said: “I am delighted to see more drivers than ever are choosing electric vehicles.
“As awareness of the benefits grows, even more motorists will buy these cleaner, greener vehicles, which are cheaper to run.
“These statistics show our investment is making a real difference in encouraging people to choose electric and help protect the environment.”
Copyright Press Association 2016. Motoring News articles do not reflect the RAC's views unless clearly stated.