Following the deal, the Caisse will have a stake in 11 US wind projects and two in Canada, although Chicago-based Invenergy remains the controlling shareholder.
The assets involved include the 139MW Le Plateau wind farm in Québec, which sells its power to utility Hydro-Québec under a long-term deal.
The Caisse has an investment portfolio of some $159bn under management for public and private pension and insurance funds.
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