Integrated Security Solutions (ISS) Works at Walham and Pentir
Issued by NATIONAL GRID ELECTRICITY TRANSMISSION PLC · via UK Find a Tender Service
- Published
- 9 Oct 2026
- Value
- GBP 21,000,000
- Reference
- WS5688383780
- Location
- United Kingdom
- Sector
- Energy & Power
- Type
- works
At a glance
NATIONAL GRID ELECTRICITY TRANSMISSION PLC in United Kingdom has published a tender in energy & power: “Integrated Security Solutions (ISS) Works at Walham and Pentir”. The notice does not state a closing date, so confirm the timetable on the official portal. The stated value is GBP 21,000,000. Quote reference WS5688383780 in any correspondence with the buyer. 2 documents are attached to this notice. FreeTender has recorded 7 notices from this buyer since 2026, 7 of them currently open. There are 115 open energy & power notices in United Kingdom on FreeTender. Bids are submitted to the buyer through UK Find a Tender Service, not through FreeTender.
Details
National Grid Electricity Transmission Plc is seeking experienced and suitably qualified suppliers capable of delivering a fully integrated security solution for critical national infrastructure sites at Walham and Pentir. The requirement is divided into two separate Lots: Lot 1 (Walham) and Lot 2 (Pentir). Suppliers may submit tenders for one or both Lots; however, no supplier will be awarded more than one Lot. Further details in relation to the scope are set out in the Instructions to Tenderers.
This notice has closed — what to do next
We hold 7 notices from NATIONAL GRID ELECTRICITY TRANSMISSION PLC, going back to September 2026 — 7 of them still open. They buy mostly in Energy & Power, Transport & Logistics and IT & Telecom. There are 115 open Energy & Power tenders in United Kingdom.
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Documents
Before you bid on this tender
A quick checklist to help you decide whether to bid and prepare a compliant submission for this energy & power opportunity. Always verify the details on the official source.
- Confirm the closing date and submission window on the official portal before you start preparing your bid.
- Read the full notice and every attached document, including the scope, specifications and any bill of quantities or terms of reference.
- Check the eligibility criteria — prior similar experience, annual turnover, certifications and registrations — and make sure you qualify before investing effort.
- Prepare any earnest-money deposit (EMD) or bid security and the required formats early; missing or wrongly-formatted documents are a common cause of rejection.
- Note how bids must be submitted (online or physical), in what format, and whether a digital signature or portal registration is required.
- Watch for corrigenda and clarifications right up to the deadline — requirements and dates can change.
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