A partnership led by Canada Pension Plan Investment Board (CPP Investments) and New York-based infrastructure investor Global Infrastructure Partners (GIP) has agreed to acquire US energy company Allete Inc (<a href="https://www.nyse.com/quote/XNYS:ALE" target="_blank">NYSE:ALE</a>) for USD 6.2 billion (EUR 5.8bn) including the assumption of debt, the parties announced today.