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Orkney Community Wind Farms (OCWF) - Balance of Plant Contract

Orkney Islands Council

This public procurement record has 3 releases in its history.

Award

25 Aug 2026 at 10:18

Award Notice
Tender

28 Jul 2025 at 12:34

Tender Notice
Planning

27 Mar 2025 at 12:13

Planning Notice
Summary of the contracting process

Orkney Islands Council procured balance-of-plant construction works for two community wind farms in the Orkney Islands. The requirement covers the civil and electrical works needed before wind-turbine installation, including project and technical management, health and safety coordination, site facilities, permits, site design, clearance and excavation, access roads, crane pads, turbine foundations, substations, cable ducting, installation and commissioning. It also includes maintaining and protecting installed works during construction, removing materials and equipment, and completing snagging and defects work. The awarded requirement concerns Quanterness Wind Farm on Mainland Orkney, north-west of Kirkwall, where six approximately 4.8 MW turbines are planned. The wider procurement also included Faray Wind Farm on the uninhabited island of Faray, with marine offloading facilities and six approximately 4.8 MW turbines.

The Quanterness lot was awarded to Heddle Construction Ltd, an SME, through a selective restricted procedure. The award is active and the contract was signed on 24 August 2026. The contract value is £14,053,315.27. The original estimated value for this lot was £7,000,000, with a planned contract duration of 720 days. The tender closed on 27 August 2025, and shortlisted candidates were due to be invited to the second stage on 5 September 2025. Evaluation was based on technical quality weighted at 40% and price weighted at 60%. Up to two lots could be bid for, and variants were not allowed. Two bids were received for Quanterness, including one from an SME; both were submitted electronically. The award involves subcontracting.

This procurement demonstrates demand from Orkney Islands Council for an integrated balance-of-plant contractor able to deliver major civil engineering and electrical infrastructure for wind farms before turbine installation. A credible future competitor would need to coordinate design clarification, construction management, health and safety, permits, site facilities, earthworks, access roads, crane pads, reinforced-concrete turbine foundations, substations, cable ducting and commissioning. Capability in remote-island logistics and construction would be important, particularly where works involve difficult access, marine interfaces or protection of completed installations. The successful supplier’s SME status indicates that the requirement can be delivered by a suitably capable smaller business, potentially supported by specialist subcontractors. Relevant experience should cover renewable-energy infrastructure, electrical power works, construction quality, defect resolution and safe delivery across multiple workstreams.

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Notice Information

Notice Title

Orkney Community Wind Farms (OCWF) - Balance of Plant Contract

Notice Description

Orkney Islands Council (OIC) is developing Orkney Community Wind Farms, comprising two windfarms in the Orkney Islands. Quanterness wind farm, located on Mainland Orkney (Northwest of Kirkwall), consisting of six circa 4.8 MW Wind Turbine Generators. Faray wind farm, located on the uninhabited island of Faray in the North isles, consisting of six circa 4.8 MW Wind Turbine Generators. Both wind farms have obtained all planning consent and grid connection agreements. Quanterness is due to commence operation in June 2028, with Faray commencing operation in May 2030.

Lot Information

Quanterness Wind Farm - ECC

The Balance of Plant works required for Orkney Community Wind Farms is to complete the design and build of the civils and electrical works in advance of the WTG installer. This will include the following works: Project and technical management HSE coordination Provision of required site facilities for staff Permit control Site design (clarifying approved design and implementing) Site clearance, excavation preparation works Access roads and crane pads WTG foundations Substation building and installation Cable ducting, installation and commissioning Maintenance and protection of all installed items during construction phase Site clearance of all materials, equipment etc Snagging and defects lists

Faray Wind Farm - ECI

The Balance of Plant works required for Orkney Community Wind Farms is to complete the design and build of the civils and electrical works in advance of the WTG installer. This will include the following works: Project and technical management HSE coordination Provision of required site facilities for staff Permit control Site design (clarifying approved design and implementing) Site clearance, excavation preparation works Access roads and crane pads Marine Offloading Facilities WTG foundations Substation building and installation Cable ducting, installation and commissioning Maintenance and protection of all installed items during construction phase Site clearance of all materials, equipment etc Snagging and defects lists

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-04f96b
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/080702-2026
Current Stage
Award
All Stages
Planning, Tender, Award

Procurement Classification

Notice Type
Planning Notice
Procurement Type
Standard
Procurement Category
Works
Procurement Method
Selective
Procurement Method Details
Restricted procedure
Tender Suitability
Not specified
Awardee Scale
SME

Common Procurement Vocabulary (CPV)

CPV Divisions

45 - Construction work

CPV Codes

45200000 - Works for complete or part construction and civil engineering work

45220000 - Engineering works and construction works

45223500 - Reinforced-concrete structures

45232200 - Ancillary works for electricity power lines

45232220 - Substation construction work

45233226 - Access road construction work

45244000 - Marine construction works

45244200 - Jetties

Notice Value(s)

Tender Value
£18,000,000 £10M-£100M
Lots Value
£18,000,000 £10M-£100M
Awards Value
Not specified
Contracts Value
£14,053,315 £10M-£100M

Notice Dates

Publication Date
25 Aug 2026Yesterday
Submission Deadline
27 Aug 2025Expired
Future Notice Date
16 Jun 2025Expired
Award Date
24 Aug 20263 days ago
Contract Period
Not specified - Not specified
Recurrence
Not specified

Notice Status

Tender Status
Complete
Lots Status
Active, Cancelled
Awards Status
Active
Contracts Status
Active

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
Orkney Islands Council
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
KIRKWALL
Postcode
KW15 1NY
Postcode Area
Kirkwall
Country
Scotland
Major Region (ITL 1)
TLM Scotland
Basic Region (ITL 2)
TLM2 Highlands and Islands
Small Region (ITL 3)
TLM20 Highlands and Islands
Delivery Location
TLM65 Orkney Islands
Local Authority
Orkney Islands
Electoral Ward
Kirkwall East
Westminster Constituency
Orkney and Shetland

Supplier Information

Number of Suppliers
1
Supplier Name

Heddle Construction Ltd

Further Information

Open Contracting Data Standard (OCDS)

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