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

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 £10m Public Liability, £10m Product Liability, £5m 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 £1m; Penstock Replacement: £2m to > £5m

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.