** Shares of power generator Mercury NZ Ltd MCY.NZ fall as
much as 3.3% to NZ$6.370, posting their biggest intraday pct
drop since February 2022
** Co says current market situation has negatively impacted
MCY's FY25 trading margin by NZ$90 mln ($55.04 mln) due to lower
generation
** Says unfavourable short portfolio position in Q1 FY25
required buying electricity at high prices
** Says FY24 electricity generation 8,780 gigawatt-hour
(Gwh), down 3% from a year earlier
** Shares mark their lowest level since Aug. 12
** Stock up 3% this year, as of last close
($1 = 1.6351 New Zealand dollars)
(Reporting by Roushni Nair in Bengaluru)
((Roushni.Nair@thomsonreuters.com;))