Awarded contract

C24612 - Early Legacy Boxes - Liner and AFP

Details

Value
£4,799,679.76
Topic
Electricity, heating, solar and nuclear energy
Published
17 October 2025

Tender description

This contract is only for suppliers eligible to tender via the Engineering and Technology Solutions Marketplace DPS Category, Lot 4 Manufacturing Solutions Category, sub-category: Manufactured Products.<br/><br/>This Procurement is for the following components:<br/>• Liner <br/>• AFP <br/><br/>In support of Right First Time (RFT) Manufacture, the following phases shall be completed with support from SL, following contract award:<br/>• M1. Mobilisation<br/>• M2. Design Validation & Verification<br/>• M3. Tooling & Process Development<br/>• M4. Assembly 1 manufacture <br/>• M5. Assembly 2-6 manufacture <br/>• M6. Assembly 7-27 manufacture <br/>• M7. Assembly 28+ manufacture <br/><br/>A further DPS tender reference C24615 for the Box and the Lid has been issued on the same date as this procurement. The subsequent contracts awarded will be managed concurrently. Lot 1: Sellafield Ltd (SL) have developed a Legacy 3m3 Box Design for the retrieval, packaging, transport, storage, and disposal of ILW (Intermediate Level Waste) from facilities at Sellafield site. <br/><br/>These boxes will be used for interim storage and final disposal of the following wastes:<br/><br/>Legacy Pond Skips (inc. Zeolites)<br/>Maintenance waste from retrievals process/plant<br/>Secondary waste arisings within the Box Encapsulation Plant (BEP)<br/><br/>Where the term “Box” is used in this Specification it shall imply the same meaning as a “Legacy 3m3 Box Assembly”. <br/><br/>The Box Assembly comprises the following components: <br/> 1 off Box Body<br/> 1 off Box Lid<br/> 1 off Bolt Set (28 off bolts per set)<br/> 1 off Liner <br/> 1 off Anti Flotation Plate (AFP)<br/> 1 off Liquor Filter Module (LFM) <br/><br/>SL requires 6 off liner & AFP assemblies by August 2026 to preload the BEP facility. Following this, SL needs 27-60 liner & AFP (at a minimum rate of 8 per annum) to be supplied to support BEP (Box Encapsulation Plant) Active Commissioning in 2027.<br/><br/>Note: This Procurement is for the following components only:<br/><br/>Liner<br/>Anti Flotation Plate<br/><br/>There is another DPS tender for Box & Lid which will be managed concurrently to this scope of work. <br/><br/>Only ‘mature’ methods of manufacture that have been tried and tested, should be used to manufacture the box components; this should cut down development time and ensure on time delivery.<br/><br/>In support of Right First Time (RFT) Manufacture, the following phases shall be completed with support from SL, following contract award:<br/><br/>1. Mobilisation<br/>2. Design Validation & Verification<br/>3. Tooling & Process Development<br/>4. Assembly 1 manufacture <br/>5. Assembly 2-6 manufacture <br/>6. Assembly 7-27 manufacture <br/>7. Assembly 28+ manufacture <br/><br/>Note: Total quantity to be determined by quoted unit prices.<br/><br/>**ADDITIONAL INFORMATION**<br/><br/>Tenders were evaluated against the award criteria with a view to identifying the most economically advantageous tender (MEAT) to our requirements. It was split as follows:-<br/><br/>80% Quality<br/>20% Price

Timeline

  1. Completed: Award date19 September 2025
  2. Completed: Award published17 October 2025
    Current notice

About the buyer

Sellafield Limited is a central government body and one of four component parts of the Nuclear Decommissioning Authority Group. The site's decommissioning programme ranks as the largest environmental restoration project in Europe. Major projects run through the Programme and Project Partners framework, a long-term supplier alliance. Decommissioning work is split among supplier alliances under the Decommissioning Delivery Partnership.

No preferred supplier list operates, so any supplier meeting the criteria can tender.

Over the past 5 years, most of Sellafield Limited's contract awards have been in IT services, architectural and engineering services and repair and maintenance.

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