6820296d45ac5e219112134e1ee9c01e English series DONG Energy Project Manager +45 99 55 11 11 Kraftværksvej 53 Skærbæk 7000 Fredericia Denmark info@dongenergy.com www.dongenergy.com pointOfContact 2008-04-14 MEDIN Discovery Metadata Standard Version 2.3.5 urn:ogc:def:crs:EPSG::4326 OGP 2002, PMSS, Gunfleet Sands Offshore Wind Farm, HV Cable Landing Construction Techniques 2002-09-07 publication 2002 creation 1519 http://data.offshorewind.co.uk/ This project covers the route research, analysis and conclusions in respect of land side HV cable installation for the Gunfleet Sands Offshore Wind Farm. The sea landing point has been carefully selected and directional drilling established as the least intrusive technique to achieve power transfer from sea to land. The cable can be installed without damage to the intertidal zone, without compromising sea defences or existing services and with minimum impact by installation activity being confined to the disused clay pit. Landside installation could follow several routes, but a quantitative comparison and weighting of impacts results in route 3 being the preferred option. The option of utilising overhead transmission lines has been dismissed due to visual impact. Considering the cable laying technologies available the impact of the work can be significantly mitigated by disciplined best practice for the open cut works and by applying trenchless techniques to specific sensitive/difficult locations such as SSSI, road, stream and rail crossings. Subject to detailed intrusive site investigations, and very favourable results, there are possible further mitigating approaches that could be reviewed and adopted. The most pertinent is to review trenchless technology implementation from the sea cable landing point to north of Holland Brook, and similarly from the east side of Holland Brook (on the south side of Great Holland Common Road) to the substation connection point. Works at the substation, including a new metering/switch room can be accommodated within the existing compound and will not disturb new ground. The Crown Estate +44 020 7851 5000 16 New Burlington Place London W1S 2HX United Kingdom enquiries@thecrownestate.co.uk http://www.thecrownestate.co.uk custodian PMSS Partnership unknown unknown originator notPlanned DOC Consenting The Crown Estate Renewable Energy Development Phases 2012-05-15 revision 1 Offshore Cable Corridor The Crown Estate Renewable Energy Development Areas 2012-05-15 revision 1 Onshore Cable corridor The Crown Estate Renewable Energy Development Areas 2012-05-15 revision 1 Onshore Substation The Crown Estate Renewable Energy Development Areas 2012-05-15 revision 1 Cable Landfall The Crown Estate Renewable Energy Development Areas 2012-05-15 revision 1 Marine Environmental Data and Information Network Marine Environmental Data and Information Network no conditions apply eng structure 1.18221415492963 1.26099093245853 51.7105268136316 51.7529100147345 2002 2002 Presentation type: digital representation of a primarily textual item (can contain illustrations also) Supply media: 002 Origin: PMSS http://www.marinedataexchange.co.uk/search?q=#fq=fq%3DProject%253Amde1r2gs20064 download https://www.marinedataexchange.co.uk/details/516/summary A link to the web service or dataset. https://www.marinedataexchange.co.uk A link to the general host site. dataset The document covers the route research, analysis and conclusions in respect of land side HV cable installation for the Gunfleet Sands offshore wind farm. Extents covered by this report are from the meeting point of the directional drilling with the offshore cable trenching beyond the intertidal zone at approximate grid reference TM 216166 (approximately 250 m out from the existing coast defences at Holland Haven), up to the proposed connection point to the local electrical network within the existing substation.