Here are the top cleantech stories we’re following today on the GreenBeat:

The U.S. wind power industry had its slowest quarter in three years, adding 395 megawatts of capacity in the third quarter of this year, Reuters writes. The American Wind Energy Association attributed the decline to Congressional failure to pass a renewable power mandate. Year-to-date installations of 1,600 megawatts are down 72 percent compared to the same time last year. Last week, wind farm developer First Wind pulled its IPO.

Danish wind company Vestas announced it will cut 13 percent of its workforce — 5,000 jobs — and close five plants, also owing to the lack of a U.S. renewable power legislature, Green Chip Stocks reports.

Nissan showed a new electric vehicle prototype and announced plans to produce 250,000 electric vehicles a year. Its partner Renault will match that output, AP reports. Nissan’s all-electric Leaf debuts in select markets this December.

Biofuels company Ineos Bio announced it will be building a $100 million commercial plant in Vero Beach, Florida. The facility will product eight million gallons of ethanol. Ineos makes technology that converts biomass into ethanol, pulling from a variety of feedstocks like municipal solid waste, yard waste, wood and vegetative waste.

Here’s  an interesting accessory soon to be available for your electric car: Electric Motors and Vehicles Company announced it will soon launch a range extender called Pru. It’s in the form of a trailer that carries a power regeneration system and attaches to any electric vehicle. A prototype will be unveiled early next year and will become commercially available in the second half of 2011. The company also makes camper trailers for Jeep.

Lighting systems maker Adura Technologies has lost its CEO and former Honeywell executive Jack Bolick, who is stepping down for personal reasons, Greentech Media reports. Bolick will stay on as a director.