---
title: "Supply Chain Notice: Penstock Refurbishments and Replacements Programme across Portsmouth Naval Base"
ocid: "ocds-b5fd17-a103a621-1d47-4931-9651-c6562ba7b1f7"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-a103a621-1d47-4931-9651-c6562ba7b1f7"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-a103a621-1d47-4931-9651-c6562ba7b1f7.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-a103a621-1d47-4931-9651-c6562ba7b1f7.json"
source: "Contracts Finder"
current_stage: "Planning"
buyer: "MINISTRY OF DEFENCE"
published: "2023-06-02"
---

# Supply Chain Notice: Penstock Refurbishments and Replacements Programme across Portsmouth Naval Base

Buyer: MINISTRY OF DEFENCE  
Current stage: Planning  
OCID: ocds-b5fd17-a103a621-1d47-4931-9651-c6562ba7b1f7

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-b5fd17-a103a621-1d47-4931-9651-c6562ba7b1f7)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-b5fd17-a103a621-1d47-4931-9651-c6562ba7b1f7.json)

## Summary

The Ministry of Defence is planning a tender for the "Supply Chain Notice: Penstock Refurbishments and Replacements Programme across Portsmouth Naval Base." This procurement process involves penstock valves refurbishments and replacements at HM Naval Base Portsmouth, with key dates including the construction commencement on 9th October and completion on 22nd December. The approximate contract values range from £1m for refurbishments to over £5m for penstock replacements.

This tender by the Ministry of Defence offers opportunities for businesses, especially those experienced in infrastructure asset management and services. Companies interested in delivering excellence, reliability, and innovation within the naval base sector would be well-suited to compete for this contract. The procurement stage is in planning, with engagement ending on 16th June, leading to the Pre-Qualify and/or Invited to Tender phase based on received expressions of interest.

## Notice

Project location HM Naval Base Portsmouth The Contractor shall be expected to adhere by the HMNB site security requirements, all Contractors and Sub-Contractors shall be BPSS security vetted and will be required to hold the relevant site security passes. The Contractor shall be expected to hold the following levels of insurance PS10m Public Liability, PS10m Product Liability, PS5m Professional Indemnity. KBS Maritime - Introduction KBS Maritime is a joint venture between KBR and BAE Systems, bringing together two global players with a rich heritage of delivering excellence, innovation and reliability. The joint venture will combine the expertise of KBR as a global leader in infrastructure asset management and services with BAE Systems' experience and capability within Portsmouth Naval Base. KBS Maritime are delivering an ambitious, modern and enduring change to the Portsmouth Naval base infrastructure, securing investment in the local community and ensuring fit-for-purpose, world-leading fleet support for the Royal Navy and the UK in the decades ahead. Project Background KBS Maritime have a requirement for penstock refurbishments and replacements across Portsmouth Naval Base. The penstock system controls sea water via a culvert system between the harbour, the basin and the dry docks. These include levelling penstocks of circa 8 metres deep to drainage penstocks circa 22 metres deep. The refurbishment programme covers door seals, shaft and door nut replacements, ladder and platform replacements and actuation upgrades. The replacement programme will replace the current cast irons doors with a steel version specification to be agreed along with the associated shafts, wedges, door nut, brackets, platforms, ladders and actuation and road plates. This is a rolling 10 year programme with two refurbishments to be complete by end of 2023 and circa seven replacements by end of 2024. Key Dates (approximate) - Expressions of Interest: 16 June - PQQ Evaluation: 14 Jul - Bidders Selected: 28 Jul - ITT Published: 4 Aug - ITT Close: 8 Sept - Construction commencement: 9 Oct - Construction Completion 22 Dec Approx Contract Values: Refurbishment up to PS1m; Penstock Replacement: PS2m to > PS5m KBS Works Contract will be applicable to this project (this will be made available at ITT stage) Additional information: : If you are interested in this opportunity, please contact KBS Maritime at Tenders@kbsmaritime.com quoting ref: EOI- Penstock Refurbishments and Replacements Programme across Portsmouth Naval Base in the email subject title to express interest. Once the notice has closed, suppliers will be invited to Pre-Qualify and/or Invited to Tender. Open or restricted tender procedure will be dependent on the number of expression of interest received.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/e3909c4d-2254-408b-bbfa-628bc0da22e8 |
| Notice type | Market Engagement Notice |
| Procurement type | Standard |
| Procurement category | Not specified |
| Procurement method | Not Specified |
| Procurement method details | Not specified |
| Tender suitability | SME, VCSE |
| Awardee scale | Not specified |
| All stages | Planning |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 2 Jun 2023 |
| Submission deadline | Not specified |
| Future notice date | 23 Jun 2023 |
| Award date | Not specified |
| Contract period | Not specified |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | MINISTRY OF DEFENCE |
| Locality | PORTSMOUTH |
| Post town | Portsmouth |
| Postcode | PO1 3NH |
| Country | England |
| ITL 1 | TLJ South East (England) |
| ITL 2 | TLJ3 Hampshire and Isle of Wight |
| ITL 3 | TLJ31 Portsmouth |
| Local authority | Portsmouth |
| Electoral ward | Charles Dickens |
| Westminster constituency | Portsmouth South |
| Delivery location | TLJ South East (England) |

## CPV Codes

### Divisions

- 42 - Industrial machinery

### Codes

- 42131220 - Penstock valves

## Release History

- 2 Jun 2023 at 09:25 - Planning - Market Engagement Notice - https://www.contractsfinder.service.gov.uk/Notice/e3909c4d-2254-408b-bbfa-628bc0da22e8
- 1 Jun 2023 at 10:06 - Planning - Market Engagement Notice - https://www.contractsfinder.service.gov.uk/Notice/fef1d1bb-ed5c-426d-aa4d-0d8406e7d36b

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/e3909c4d-2254-408b-bbfa-628bc0da22e8
  2nd June 2023 - Early engagement notice on Contracts Finder
- https://www.contractsfinder.service.gov.uk/Notice/fef1d1bb-ed5c-426d-aa4d-0d8406e7d36b
  1st June 2023 - Early engagement notice on Contracts Finder

## 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-b5fd17-a103a621-1d47-4931-9651-c6562ba7b1f7. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-a103a621-1d47-4931-9651-c6562ba7b1f7.json.
