A bidding error in the Nordic spot power market could be the costliest fat finger event ever in European energy markets – both in terms of financial losses but also the reputational damage for the electricity system and the companies involved. Listen to a discussion on the events that led to EUR -500/MWh power prices and why some Finns treated it as Black Friday.   Host: Snjólfur Richard Sverrisson, Editor-in-Chief, Montel Guests: Maarit Uusitalo, Manager, Market Solutions, Fingrid ;Riku Merikoski, Senior Power Analyst, Axpo; Gert Ove Mollestad, Editor Norway.