---
title: "4.8MW Substation design and installation"
ocid: "ocds-h6vhtk-06a6c7"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06a6c7"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-06a6c7.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-06a6c7.json"
source: "Find A Tender Service"
current_stage: "Tender"
buyer: "EUROPEAN MARINE ENERGY CENTRE (EMEC) LTD"
published: "2026-06-25"
---

# 4.8MW Substation design and installation

Buyer: EUROPEAN MARINE ENERGY CENTRE (EMEC) LTD  
Current stage: Tender  
OCID: ocds-h6vhtk-06a6c7

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## Summary

The European Marine Energy Centre (EMEC) Ltd, located in Orkney, United Kingdom, has initiated an open procurement process for the design and installation of a 4.8MW substation on the island of Eday, Orkney. Operating under the works category, this project involves substation construction work, classified under CPV code 45232220. The procurement stage is currently in the tender update phase, with amendments extending the submission deadline to 3rd July 2026, allowing more time for bid preparation. The entire contract period is set from 3rd August 2026 to 31st March 2028.

This tender offers substantial opportunities for companies specialising in electrical power systems design, transformer substation construction, and infrastructure works. With a tender value of £1,565,000, the contract includes design, procurement, installation, and commissioning activities, making it an ideal fit for contractors well-versed in renewable energy projects and substation design and build. The award criteria focus on contractor experience, technical methodology, availability, and cost efficiency, thus favouring experienced, resourceful companies well-prepared to execute complex engineering projects within specified timeframes.

## Notice

Design and construction of 4.8 MW substation on the island of Eday, Orkney

### Lot Information

Lot 1

We wish to appoint a contractor to design, procure, install and commission a 4.8 MW onshore tidal generation substation. Design Works - Site layout design. - Civil design of the substation. - Electrical design of the substation lighting and small power circuits. - Electrical design for the balance of plant equipment required to facilitate the power export. - Electrical design of the site earthing system. Construction works - Construction of the substation building(s). - Construction of foundation for SSEN shunt reactor. - Supply and construction of earthing systems. - Supply and construction installation of the 33 kV and 11 kV switchgear, and transformer and associated equipment. - Commissioning of all site equipment. - Provision of documentation.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/059865-2026 |
| Notice type | Tender Notice |
| Procurement type | Standard |
| Procurement category | Works |
| Procurement method | Open |
| Procurement method details | Open procedure |
| Tender suitability | Not specified |
| Awardee scale | Not specified |
| All stages | Tender |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 25 Jun 2026 |
| Submission deadline | 26 Jun 2026 |
| Future notice date | Not specified |
| Award date | Not specified |
| Contract period | 2 Aug 2026 - 31 Mar 2028 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £1,565,000 |
| Lots value | £1,565,000 |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Active |
| Lots status | Active |
| Awards status | Not specified |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | EUROPEAN MARINE ENERGY CENTRE (EMEC) LTD |
| Locality | ORKNEY |
| Post town | Kirkwall |
| Postcode | KW16 3AW |
| Country | Scotland |
| ITL 1 | TLM Scotland |
| ITL 2 | TLM2 Highlands and Islands |
| ITL 3 | TLM20 Highlands and Islands |
| Local authority | Orkney Islands |
| Electoral ward | Stromness and South Isles |
| Westminster constituency | Orkney and Shetland |
| Delivery location | TLM65 Orkney Islands |

## CPV Codes

### Divisions

- 45 - Construction work
- 71 - Architectural, construction, engineering and inspection services

### Codes

- 45232220 - Substation construction work
- 45232221 - Transformer substation
- 71323100 - Electrical power systems design services

## Release History

- 25 Jun 2026 at 12:39 - TenderUpdate - Tender Notice - https://www.find-tender.service.gov.uk/Notice/059865-2026
- 27 May 2026 at 15:29 - Tender - Tender Notice - https://www.find-tender.service.gov.uk/Notice/049902-2026

## Notice URLs

- http://www.emec.org.uk
- http://www.publiccontractsscotland.gov.uk
- https://api.publiccontractsscotland.gov.uk/v1/Notice?id=ocds-r6ebe6-0000832574
- https://www.publiccontractsscotland.gov.uk/ESPD/ESPD_Download.aspx?id=832574
- https://www.publiccontractsscotland.gov.uk/Search/Search_Switch.aspx?ID=832574
- https://www.publiccontractsscotland.gov.uk/search/Search_AuthProfile.aspx?ID=AA23883
- https://www.publiccontractsscotland.gov.uk/sitehelp/help_guides.aspx
- https://www.scotcourts.gov.uk/the-courts/court-locations/kirkwall-sheriff-court

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06a6c7. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-06a6c7.json.