DONG Energy A/S - IBO of 16 hours for Unit 20 from 24:00 on Saturday night April 28 to 16:00 on Sunday afternoon April 29 2012

General Template for Regulatory Reporting

Reference number / Reference nummer	2012/04/26/RJ/01
Type of asset or agreement / Form for aktiv eller aftale	Power Plant
Affected unit(s) / Påvirket anlæg	Severn 20
Country / Land	UK
Time of capacity reduction / Tidspunkt for reduktion i kapacitet	24:00 April 28 2012
Company / Virksomhed	DONG Energy
Cause / Årsag	Essential Repairs to valve on HRSG
Type of fuel(s) / Brændstof	Natural Gas
Capacity influenced / Påvirket kapacitet	420 MW
Available capacity during outage or maintenance / Kapaciett til rådighed under nedbrud el.vedligehold	0 MW
Estimated outage or maintenance duration / Vurderet varighed for nedbrud eller vedligehold	16 hours
Duration uncertainty / Usikkerhed	+/- 10 min
Additional information / Yderligere information	Information Based Outage (IBO)
Event status	Open
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