Centricas R2 Wind Farms Lincs 250MW - 45-50km route length to - - PowerPoint PPT Presentation

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Centricas R2 Wind Farms Lincs 250MW - 45-50km route length to - - PowerPoint PPT Presentation

Centricas R2 Wind Farms Lincs 250MW - 45-50km route length to shore - Race Bank & docking Shoal (each) 500MW - 65-70km route length to shore - All connecting to Walpole 400kV 20-25km on shore route length -


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Centrica’s R2 Wind Farms

  • Lincs
  • 250MW
  • 45-50km route length to shore
  • Race Bank & docking Shoal (each)
  • 500MW
  • 65-70km route length to shore
  • All connecting to Walpole 400kV
  • 20-25km on shore route length
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Outline Electrical Studies

  • Methodology for identification and rationalisation of viable
  • ptions
  • Analysis of
  • inter-array cabling
  • Offshore platform configuration (no. & size of

transformers)

  • Offshore platform arrangement (no. of platforms & inter-

connectivity per wind farm)

  • 132kV cabling to shore
  • Interconnectivity between wind farms
  • Optimisation for installed cost, losses and availability
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Lincs 250MW – Option 1

to Walpole

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Lincs 250MW – Option 2

to Walpole

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Lincs 250MW – Option 3

to Walpole

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Lincs 250MW – Option 4

to Walpole

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Optimisation Results – Lincs 250MW

  • 2x 500mm2 132kV cables to shore
  • 1x platform
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Docking Shoal (Race Bank) 500MW – Option 1

~125 MW ~125 MW ~250 MW 500 sqmm ~125 MW 800 sqmm ~143 MW Three platforms arrangement with no redundancy inter-platforms

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Docking Shoal (Race Bank) 500MW – Option 2

~125 MW ~125 MW ~250 MW 500 sqmm ~125 MW 800 sqmm ~143 MW Three platforms arrangement with redundancy inter-platforms

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Docking Shoal (Race Bank) 500MW – Option 3

~250 MW ~250 MW 500 sqmm ~125 MW 800 sqmm ~143 MW Two platforms arrangement with no redundancy inter-platforms

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Docking Shoal (Race Bank) 500MW – Option 4

~250 MW ~250 MW 500 sqmm ~125 MW 800 sqmm ~143 MW Two platforms arrangement with redundancy inter-platforms

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Optimisation Results – DS (& RB) 500MW

  • 4x 500mm2 132kV cables to shore
  • 2x platforms with 10km separation no interconnections within

the wind farm

  • Some connection between DS & RB is beneficial
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Docking Shoal & Race Bank Interconnection 1

Race Bank Docking Shoal

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Docking Shoal & Race Bank Interconnection 2

Race Bank Docking Shoal

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Docking Shoal & Race Bank Interconnection 3

Docking Shoal

286 214 214 286

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Docking Shoal & Race Bank Interconnection 4

Race Bank Docking Shoal

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Docking Shoal & Race Bank Interconnection 5

Race Bank Docking Shoal

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Challenges

  • Submarine cable de-rating at landing point due to use of long

ducts through inter-tidal zone.