** Canadian power producer Northland Power shares NPI.TO fall 2.6% to $17.20
** TD Cowen downgrades rating to "hold" from "buy" due to slower relative growth outlook
** Brokerage also cuts price target to C$19 from C$22 to reflect more conservative parameters in its sum-of-the-parts valuation
** "Target 6% FCF/share CAGR over the next five years is below both prior consensus expectations and the target growth rates of peers", brokerage says
** Including session's moves, stock down 4.02% YTD
(Reporting by Megha Anilkumar Nair)
((MeghaAnilkumar.Nair@thomsonreuters.com;))