East-West HVDC Interconnector (Webinar Presentation) · East-West HVDC Interconnector ... Coal Wind...
Transcript of East-West HVDC Interconnector (Webinar Presentation) · East-West HVDC Interconnector ... Coal Wind...
East-West HVDC Interconnector
6 May 2015 – ISGAN Webinar
Séamus Power (EirGrid)
6 May 2015
Context
Min / Max Demand (All-Island)
2,300 MW / 6,500 MW
Installed Generation
Conventional: 9,901 MWWind: 2,825 MW
Interconnection
750 MW
2020 RES Targets
40%
Fuel Mix
GasCoalWindImportsPeatCHPHydroOther
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• 500 MW HVDC-VSC Interconnector linking Ireland & Northern Ireland system to Great Britain system
• €570m investment
• 264 km of DC cable
• Commenced: 2007
• Completed: 2012
• Contracts to
commercial operation
in 45 months
What is the East-West Interconnector?
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Objectives and Benefits
• Provide additional capacity
• Reduce dependence on imported fuels
Security of Supply
• Exert downward pressure on price
• Direct access to GB market
Promote Competition
• Reduce RES curtailment
• Assist meeting RES targets Accommodate
RES
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• Choice of technology key - HVDC VSC – Represents the optimum whole-
life techno-economic solution
– Well-suited to the technical characteristics of island systems
• Environmentally friendly XLPE cable utilised
• Performance during transient events
Technology
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Advanced Ancillary Services
• Very fast active power response for high and low frequency events
Frequency Response
• Speed up restoration of grid in event of major blackout Black Start
• Steady-state reactive power
• Voltage support during faults Voltage Control
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Community Engagement
(construction phase)
Full-time community
liaison officers
Funding for local projects & improved
safety
Engagement with primary
schools
Disruption minimised
Local information
offices
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Current Status and Results
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Load
-Wei
ghte
d A
vera
ge S
MP
(€/
MW
h)
Percentage of Days in Year
Load-Weighted Average SMP per Trading Day with EWIC ON vs EWIC OFF
01/05/2013 - 30/04/2014
EWIC ONEWIC OFF
9% Average
Saving
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• Countertrading reducing RES curtailment
• 300 GWh between July and December 2013
Current Status and Results
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EWIC
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mp
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siti
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Win
d G
en
era
tio
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MW
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Time
Demand Wind EWIC
20/10/2014 21/10/2014
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• Choice of technology key
• Developing and maintaining good stakeholder relationships
• Separate project managers for Ireland, Great Britain and marine works
Lessons Learned and Best Practices
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Next Steps
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Thank You!