presentation: romulo 2011 - home - english - siemens ... to 1000 m water depth january – july 2011...
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Peninsula-Mallorca interconnection. ROMULO project
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Contents
Project motivation
General description
Marine activities
Project challenges
Peninsula-Mallorca interconnection. ROMULO project
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Project motivation
Connect Balearic electric system to the Peninsular-European system
Benefits for the Spanish electric system: generation costs
CO2 emissions
Benefits for the Balearic electric system: large improvement in security of supply
existing
planned
RÓMULO
Peninsula-Mallorca interconnection. ROMULO project
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General description
Double link, HVDC, 2 x 200 MW, 250 kV, metallic return
2 HV cables + 1 MV/FO cable
No submarine joints
Max. depth: 1.485 m
Length: 244 km
Turn-key contracts: Siemens (converters)
Nexans/Prysmian (cable system)
Peninsula-Mallorca interconnection. ROMULO project
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Morvedre converter station (Sagunto, peninsular side)
Peninsula-Mallorca interconnection. ROMULO project
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Santa Ponsa converter station (Mallorca side)
Peninsula-Mallorca interconnection. ROMULO project
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Sagunto landing
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Santa Ponsa landing
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HVDC Cables design
2 direct current cables Conductor: copper 750 mm² - 1.200 mm² Insulation: mass impregnated paper Screen: lead alloy Reinforcement (armour): double layer of
galvanized steel tapes Outer diameter: 94 mm
DIRECT CURRENT CABLES (poles)
Land cable Submarine cable (shallow)
Submarine cable (deep)
Cu 1.200 mm2
No armour
Cu 750 mm2
Single armourDepth < 200-220 m
Cu 750 mm2
Double armour
Weight: 23 kg/m Weight: 23,5 kg/m Weight: 29,5 kg/m
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Within scope of turn-key contract
3 independent laying campaigns January – March 2011 From Mallorca to Sagunto Giulio Verne and Skagerrak
Post laying protecion works Scope: burial of cables 1m under seabead,
up to 1000 m water depth January – July 2011 Jetting, 284 km (Edda Fjord)
Rock trenching (Argo), 23 km
Protection works in Posidonia
Marine activities
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Status of the project All permits and authorizations were granted in 2009 and 2010 (Spanish
Ministries of Environment and Industry, Coastal Departments, Port Authority)
Converter stations: civil works and installation finished, testing ongoing
Morvedre (Sagunto) converter station energized in June 2011
Santa Ponsa converter Station will be energized in October 2011
Land and marine sections works: cable installation and protection completed
Operation of the interconnection will start late 2011
Peninsula-Mallorca interconnection. ROMULO project
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Project challenges
First HVDC submarine interconnection in Spain
World second deepest installation (1.485 m)
Highest investment for a single project in REE (400 M€)
Interconnection operation and energy management
Maximizing social acceptance and environmental integration
