HELSINKI - Finnish utility Fortum and state-owned forest manager Metsahallitus plan to build some 18 wind power plants in Lapland at a cost of 70-80 million euros ($102-117 million), the firms said on Friday.

The turbines combined would provide 100-120 GWh annually, or 40 percent of the consumption of the Kittila and Sodankyla municipalities, the companies said in a statement.

Production should start in 2013 if all necessary permissions are granted. A Fortum spokesman said the costs would be roughly shared 50-50.

(Reporting by Julie Breton; Editing by Keiron Henderson)