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MULTI-SITE SOLAR PV INSTALLATIONS WORK FOR CYNGOR GWYNEDD

Cyngor Gwynedd

This public procurement record has 2 releases in its history.

Tender

21 Aug 2026 at 17:15

UK4 - Tender Notice
Planning

14 May 2026 at 12:34

UK2 - Preliminary Market Engagement Notice
Summary of the contracting process

Cyngor Gwynedd is seeking contractors for multi-site solar photovoltaic installation works at 11 of its properties. The requirement covers the design, supply, installation, commissioning and setting to work of solar PV generators connected in parallel with the distribution network operator’s network. This is a works contract for roof-based solar panel installations and associated electrical and commissioning activities. The buying organisation is Cyngor Gwynedd, a Welsh public authority based in Caernarfon. The work is for the council’s property portfolio in Gwynedd, so suppliers should be able to deliver across multiple council sites rather than at one single location. The opportunity is particularly relevant to solar PV system designers, electrical contractors, renewable-energy installers and main contractors able to manage coordinated delivery across several properties.

The process has reached tender: Cyngor Gwynedd invited offers through a below-threshold open competition. Enquiries closed on 25 September 2026 at 12:00, and submissions were due through the E-Tender Wales portal by 2 October 2026 at 12:00. The contract period is 1 December 2026 to 3 September 2027, with a possible extension to 30 November 2027 where needed to complete the works. The estimated value is £14,000,000 excluding VAT, or £168,000,000 including VAT. There is one lot, marked as suitable for SMEs. Evaluation is based on technical quality at 50%, commercial assessment at 40% and social value at 10%. Electronic submission is allowed.

This opportunity suits an established solar PV installation business or electrical and renewable-energy contractor able to design, supply, install, commission and set systems to work across 11 sites. Competition requires confirmation that the bidder is an MCS-approved installer for photovoltaic systems and belongs to a Competent Person Scheme for photovoltaic installation. UKAS-accredited certification to BS 7671 standards and SSIP accreditation are also required. The successful supplier will need sufficient project management, engineering, installation and commissioning capacity to coordinate multiple properties and connect generators in parallel with the distribution network operator’s network. Firms with experience delivering multi-site commercial or public-sector solar schemes, managing electrical compliance and demonstrating wider social value should be well placed to compete. The lot is identified as suitable for small and medium-sized enterprises.

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Notice Information

Notice Title

MULTI-SITE SOLAR PV INSTALLATIONS WORK FOR CYNGOR GWYNEDD

Notice Description

The design, supply, installation, commissioning and setting to work of solar PV generators connected in parallel with the DNO's network at 11 properties.

Lot Information

Lot 1

Renewal: Some aspects could require extensions to complete the works.

Planning Information

We will conduct time slotted consultations: Friday 22 May 2026 Cyngor Gwynedd, Penrallt, Caernarfon, Gwynedd, LL55 1BN Times to be confirmed 21/5/2026

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-0698a7
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/080099-2026
Current Stage
Tender
All Stages
Planning, Tender

Procurement Classification

Notice Type
UK4 - Tender Notice
Procurement Type
Standard
Procurement Category
Works
Procurement Method
Open
Procurement Method Details
Below threshold - open competition
Tender Suitability
SME
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

09 - Petroleum products, fuel, electricity and other sources of energy

45 - Construction work

CPV Codes

09331000 - Solar panels

09332000 - Solar installation

45261215 - Solar panel roof-covering work

Notice Value(s)

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

Notice Dates

Publication Date
21 Aug 20261 weeks ago
Submission Deadline
2 Oct 20261 months to go
Future Notice Date
28 May 2026Expired
Award Date
Not specified
Contract Period
1 Dec 2026 - 3 Sep 2027 6-12 months
Recurrence
Not specified

Notice Status

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

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
Cyngor Gwynedd
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
CAERNARFON
Postcode
LL55 1SH
Postcode Area
Llandudno
Country
Wales
Major Region (ITL 1)
TLL Wales
Basic Region (ITL 2)
TLL3 North Wales
Small Region (ITL 3)
TLL32 Gwynedd
Delivery Location
TLL12 Gwynedd
Local Authority
Gwynedd
Electoral Ward
Canol Tref Caernarfon
Westminster Constituency
Dwyfor Meirionnydd

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

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