Projects

DONG Energy are constructing an extension to the Burbo Bank Offshore Wind Farm which will have a capacity of approximately 260MW. Kelvin Energy have been employed by Dong Energy to provide technical design services for the 11km onshore 220kV export cable from landfall to the onshore substation. The onshore cable route comprises of a 220kV 11km cable route. The route includes several challenging Horizontal Directional Drill (HDD) crossings under existing infrastructure for which Kelvin Energy undertook the following: Assessment of ground conditions to establish HDD constraints Scope and management of additional ground investigation Design of the proposed HDD profiles for the 600m landfall HDD and separate 700m onshore HDD Duct pull in force, cable pull in force and structural calculations Liaison with Network Rail and obtaining necessary technical approvals Liaison with Natural Resources Wales, Welsh Water, North Wales Trunk Road Agency and Local Highway Authority. Management of specialist earthing designs and calculations Management and supervision of onsite trial pits to determine service locations Cable route setting out and services clearance in advance of fencing works

Kelvin Energy were engaged to provide Primary and Civil design as well as provision of Aluminium and steel substation equipment support structures to Smith Brothers Contracting for a 132/33kV greenfield substation in North Cornwall, enabling connection of 3 proposed new Solar parks onto the local DNO’s electricity network. The principle challenge was to have the substation design completed and approved by the DNO’s engineering team within an extremely limited time frame and the first phase of construction work completed on site to meet a critical outage requirement. This extremely challenging task was completed on time and successfully adopted by the DNO allowing them to re-energise the circuit in line with their requirements. Full co-operation between all parties across the project disciplines was essential to enable this to happen and Kelvin Energy played a significant role in this process by producing designs in a timely manner with an eye on build-ability within a limited timeframe. The design and supply of predominantly pre-assembled welded lattice aluminium equipment support structures also helped significantly to reduce the overall site installation time.

Kelvin Energy were engaged by Danish energy company DONG Energy and Scottish Power Renewables to provide design and project management services for the development of the West of Duddon Sands Offshore Wind Farm. The project comprised of 108 wind turbines with a total installed capacity of 389MW. Kelvin Energy provided a legal manager to oversee the negotiation of all necessary legal agreements for the project from land options, site compound leases and asset crossing agreements onshore and offshore. Assistance was also provided during the consents process. The role also involved providing support throughout the OFTO process from OFGEM prequalification through to preferred bidder due diligence. From a design point of view Kelvin Energy assisted with the development of the substation design which included basing a small team on site to oversee the construction works. We also assisted with planning drawings and attended public exhibitions where we were able to present a 3D walkthrough of the substation site.

Kelvin Energy were responsible for the detailed design of the 15km, 132kV single circuit cable route between cable landfall at Tunstall and the onshore HV substation, near Hedon in the East Riding of Yorkshire. This also included a buried 275kV, double circuit connection between the onshore substation and the National Grid connection point. Our remit also included a site presence during construction for both the Substation and Cable Route, to co-ordinate access between some 20 landowners and the principle contactor on the cable route and the principal contactor at the Substation. This role also included co-ordinating access for the ground survey, geotechnical, ecology, ordnance, drainage design and archaeology investigations and monitoring during the course of the project. The cable ducts were installed safely and in record time, with the help of some special techniques developed specifically for this project by the principal contractor. Kelvin Energy also undertook the review of As Built drawings from the principle contractors.