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Microgrid Feasibility Study for Barra and Vatersay

Barra and Vatersay Wind Energy Limited

This public procurement record has 2 releases in its history.

Award

16 Jul 2026 at 01:00

PCS Notice - Website Contract Award Notice
Tender

07 May 2026 at 01:00

PCS Notice - Website Contract Notice
Summary of the contracting process

Barra and Vatersay Wind Energy Limited commissioned a professional services feasibility study for microgrid and private-wire options across the connected islands of Barra and Vatersay in the Outer Hebrides. The work covers demand and growth, existing networks and critical loads, integrated generation, energy storage and control architectures for both grid-tied and islanded operation. It also includes high-level techno-economic modelling, regulatory, policy, planning and grid-code review, Scottish and Southern Electricity Networks interface and connection options, protection, control and black-start concepts, ownership and community benefit models, risk assessment and an implementation roadmap. Required outputs are a feasibility report, assumptions register, non-technical stakeholder summary, reusable working models, and a stakeholder presentation or workshop.

The procurement is complete and was run as a single-lot open procedure for services. The tender deadline was 1 June 2026 at 12:00, with bid opening and the award period beginning at 13:00 the same day. Energy Mutual Ltd. was awarded the contract on 1 June 2026. The awarded contract value is £29,450, against a lot value of £30,000, and the contract was signed on 10 July 2026. The contract is active and has a duration of 120 days. Bids had to be submitted electronically in English and remain valid for 90 days. Evaluation required bidders to be legally established, with suitability evidence including relevant company, charity or professional-register details and a conflict-of-interest declaration.

This award demonstrates demand from a community-owned energy organisation for specialist, end-to-end microgrid feasibility advice in an island setting. A credible future supplier would need practical expertise in distributed generation, storage, controls and islanded operation, supported by network assessment and connection experience with a Distribution Network Operator. The requirement also favours teams able to combine engineering and techno-economic modelling with regulatory, planning, policy, grid-code, ownership and community-benefit analysis. Suppliers should be able to produce clear decision-ready reports, reusable open-format models, assumptions registers and stakeholder-facing presentations or workshops. Legally established companies, charities or other eligible organisations can participate, and consortia or reliance on other entities is permitted where the necessary capacities are identified and accessible.

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Notice Information

Notice Title

Microgrid Feasibility Study for Barra and Vatersay

Notice Description

On behalf of community-owned Barra and Vatersay Wind Energy Limited, a feasibility study is sought for microgrid and private-wire options on the connected islands of Barra and Vatersay, Outer Hebrides. Scope: baseline demand and growth; review of existing network and critical loads; options development for integrated generation, storage and control architectures (grid-tied and islanded modes); high-level techno-economic modelling (CAPEX, OPEX, levelised cost); regulatory, policy, planning and grid-code review; Distribution Network Operator (Scottish and Southern Electricity Networks) interface and connection options; protection, control and black-start concepts; ownership models and community benefit; risk assessment and implementation roadmap. Outputs include a concise feasibility report and assumptions register, a non-technical summary for stakeholders, working model files in an open and reusable format, and a stakeholder presentation/workshop.

Lot Information

Lot 1

Scope: baseline demand and growth; review of existing network and critical loads; options development for integrated generation, storage and control architectures (grid-tied and islanded modes); high-level techno-economic modelling (CAPEX, OPEX, levelised cost); regulatory, policy, planning and grid-code review; Distribution Network Operator (SSEN) interface and connection options; protection, control and black-start concepts; ownership models and community benefit; risk assessment and implementation roadmap. Outputs include a concise feasibility report and assumptions register, a non-technical summary for stakeholders, working model files in an open and reusable format, and a stakeholder presentation/workshop.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-r6ebe6-0000828630
Publication Source
Public Contracts Scotland
Latest Notice
https://www.publiccontractsscotland.gov.uk/search/show/search_view.aspx?ID=JUL560343
Current Stage
Award
All Stages
Tender, Award

Procurement Classification

Notice Type
PCS Notice - Website Contract Award Notice
Procurement Type
Standard
Procurement Category
Services
Procurement Method
Open
Procurement Method Details
Open procedure
Tender Suitability
Not specified
Awardee Scale
SME

Common Procurement Vocabulary (CPV)

CPV Divisions

71 - Architectural, construction, engineering and inspection services

CPV Codes

71241000 - Feasibility study, advisory service, analysis

71314000 - Energy and related services

71314300 - Energy-efficiency consultancy services

71323100 - Electrical power systems design services

Notice Value(s)

Tender Value
£30,000 Under £100K
Lots Value
£30,000 Under £100K
Awards Value
Not specified
Contracts Value
£29,450 Under £100K

Notice Dates

Publication Date
16 Jul 20262 months ago
Submission Deadline
1 Jun 2026Expired
Future Notice Date
Not specified
Award Date
Not specified
Contract Period
Not specified - Not specified
Recurrence
Not specified

Notice Status

Tender Status
Complete
Lots Status
Complete
Awards Status
Not Specified
Contracts Status
Active

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
Barra and Vatersay Wind Energy Limited
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
ISLE OF BARRA
Postcode
HS9 5XD
Postcode Area
Outer Hebrides
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
TLM64 Na h-Eileanan Siar
Local Authority
Na h-Eileanan Siar
Electoral Ward
Barraigh agus Bhatarsaigh
Westminster Constituency
Na h-Eileanan an Iar

Supplier Information

Number of Suppliers
1
Supplier Name

Energy Mutual Ltd.

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

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