Joining Chevy, Nissan is offering big discounts for it’s electric-powered Leaf:

Nissan is offering cheap leases and big discounts on the Leaf because of slow sales of the all-electric car.

Nissan Motor Co. sold only 4,228 Leafs this year through August, almost a third fewer than a year ago.

It also has a big inventory of the cars nationwide. At the end of August it had enough 2012 models in stock to supply dealers for 114 days, according to Ward’s AutoInfoBank. Automakers consider a 60-day supply to be optimal.

Earlier this month, Nissan started offering Leafs for $219 per month with $2,999 down for 32 months. That’s down from $249 per month earlier in the year.

Also, the TrueCar.com auto pricing site says Nissan raised discounts to $3,250 per Leaf in August from $850 in January.