Official UK procurement notice
Integrated Resource and Waste Management Services
Authority: Kirklees Council (Local council)
What is being bought
Published requirement descriptionThe Contract shall include the following Services:
- Operation and maintenance of the Authority EfW Facility to provide reception, storage and incineration of EfW Waste. The Contractor shall optimise the Authority EfW Facility performance and energy recovery. The Contractor will be responsible for the sale of electricity generated at the Authority EfW Facility and the Treatment and / or disposal of EfW Products.
- Operation and maintenance of three WTS Facilities (Vine Street WTS, Weaving Lane WTS and Emerald Street WTS), to provide reception, storage and bulking of Contract Waste delivered by the Authority. The Vine Street WTS is co-located with the Authority EfW Facility.
- Waste transfer services, including the receipt, handling, bulking, transfer and haulage of Contract Waste, including any internal movements between the Authority Facilities. All Contract Waste delivered to the Contactor will upon delivery be the property of and held at the entire responsibility of the Contractor.
- Operation and maintenance of four HWRCs - located at Huddersfield, Dewsbury, Meltham and Upper Cumberworth.
- The marketing and sale of Dry Recyclables delivered by the Authority.
- Receipt, handling, transfer and processing of Garden Waste collected by the Authority.
- Management of waste containing Persistent Organic Pollutants (POPs).
- The Contractor shall provide all necessary Personnel, Equipment, and consumables required to deliver the Services in accordance with the Specification, the Authority's corporate objectives, and all statutory obligations pertaining to the Authority and the Contractor in delivery of the Services.
- Fulfilment of the Authority's statutory duty for the Treatment and disposal of Contract Waste under Section 51 of the EPA, all subsequent legislation to the EPA and any subsequent legislation replacing the EPA i.e. the Environment Act 2021.
- Site improvement and rectification works.
Waste streams in scope:
- Residual Waste;
- Dry Recyclables;
- Food Waste;
- Garden Waste;
- Gully detritus arising from road sweeping and gully emptying;
- Waste containing Persistent Organic Pollutants;
- Offensive Waste;
- DIY Waste;
- Asbestos;
- WEEE;
- Textiles;
- Depot Collected Waste;
- Waste delivered by Service Users of the Administrative Area to the HWRC Facilities;
- Ad-hoc Waste.
Volumes of waste:
The annual tonnage of waste requiring treatment based on 2024/25 information are approximately:
- General waste 121,000
- Comingled Recycling 19,000
- Bulky waste 5,000
- POPs 2,000
- Garden waste 15,000
- Other 15,000
Contract Duration: The contract is expected to start in April 2028 for an initial 15 years with the option to extend for up to a further 2 years with a maximum expiry of March 2045.
- Not divided into lots: Consideration was given to splitting the requirement into Lots however it would require the Council to reprocure all the existing services across multiple separate Contracts to allow smaller specialist waste management companies to be directly involved in the delivery. This was discounted as an option because: • Some of the separate packages may be too small for bidder interest. • Higher procurement costs/complexity for up to 6 contracts. • Council has to procure and monitor multiple contractors and interfaces. • The Council would have to act as mediator for shared-site issues between contactors. In addition, breaking the IRWMS contract into separate lots was discounted due to the significant operational and contractual complexities created by the physical integration of key facilities, such as the EfW plant and WTS, within a single site. Dividing responsibilities among multiple contractors would complicate risk allocation, service continuity, and asset management, particularly where shared infrastructure and overlapping use blur lines of accountability. This increased complexity could deter market interest and lead to inefficiencies, making a single integrated contract the preferred option to ensure effective coordination and value for money in waste services delivery.
- The authority expects to re-tender this requirement around 1 Jan 2043, 23:59 GMT.
- How the procedure runs: This Tender Notice relates to the award of a public contract through a Competitive Flexible Procedure in accordance with section 20(1) and 20(2)(b) of the Procurement Act 2023 ('PA 2023'). This tender process will be formed of 6 stages: Stage 1 - Procurement Specific Questionnaire (PSQ) This stage is expected to establish the procurement, publish the Tender Notice and associated procurement documents, and enable interested suppliers to determine whether they wish to participate. The Council will use the PSQ stage to assess supplier eligibility, grounds for exclusion, economic and financial standing, technical and professional capability, and other relevant participation requirements. This stage may include, but is not limited to, access to initial draft contract documents, clarification questions and responses, assessment of PSQ submissions, and down-selection of suppliers to be invited to the next stage. Stage 2 - Invitation to Submit Draft Submissions (ISDS) The ISDS stage is expected to allow shortlisted suppliers to review the Council's refined requirements, draft contract, payment mechanism, service requirements and further data room information, and to develop initial views on the deliverability, risk allocation and commercial structure of the proposed solution. This stage may include, but is not limited to, supplier site visits, written clarification, submission of contract feedback and draft responses, and discussion of the key service matters. The Council may undertake an informal review of draft submissions to support dialogue and refinement of proposals; however, such review will not be scored and will not form part of the final tender evaluation. The Council may further refine the procurement documents where appropriate. Stage 3 - Dialogue and Negotiation This stage is expected to provide a structured opportunity for the Council and shortlisted suppliers to discuss and, where permitted by the procurement documents, negotiate matters relevant to the development of robust, deliverable and value for money final tenders. The dialogue may cover, but is not limited to, service design, interface arrangements, contract terms, risk allocation, pricing assumptions, payment mechanism, performance standards, innovation, mobilisation, workforce matters, sustainability and operational resilience. Any refinements to the procurement documents will be managed in accordance with the stated procedure and applicable transparency and equal treatment requirements. Stage 4 - Invitation to Submit Final Tender (ISFT) The ISFT stage is expected to close dialogue and invite shortlisted suppliers to submit their final tenders on the basis of the final procurement documents issued by the Council. Final tenders should respond fully to the Council's requirements and award criteria, should be based upon the suppliers' draft submissions as amended through dialogue, and should not deviate from what was agreed during the dialogue process. Final tenders may include, but are not limited to, method statements, pricing schedules, contractual confirmations, mobilisation proposals, performance commitments, social value proposals, carbon reduction commitments and any other information required by the ISFT. Suppliers will be expected to submit complete and compliant final tenders by the stated deadline. Stage 5 - Evaluation The evaluation stage is expected to involve assessment of final tenders against the published award criteria and evaluation methodology, with the objective of identifying the Most Advantageous Tender. The Council may undertake moderation, clarification of tenders where permitted, financial and commercial checks, legal and technical review, governance approvals and due diligence before confirming the outcome. This stage may include, but is not limited to, evaluation of quality, price, contract compliance and social value, deliverability, risk and resilience, followed by notification of the intended award decision and any required standstill or award processes. Stage 6 - Preferred Supplier The preferred supplier stage is expected to follow identification of the Most Advantageous Tender and to support completion of the steps required before and after contract award. This stage may include, but is not limited to, finalisation of the contract with the preferred supplier, completion of internal governance approval of the Full Business Case recommendation, issue of assessment summaries, publication of the Contract Award Notice, observance of the applicable standstill period, signature of the contract, publication of the Contract Details Notice and publication of a copy of the contract. The Council may also undertake any remaining legal, financial, technical, commercial and mobilisation checks required to support contract award and implementation. The Authority will publish the Procurement Specific Questionnaire (PSQ) tender documentation, and other associated documents using the designated procurement portal YorTender: https://yortender.eu-supply.com/login.asp?B=YORTENDER.
CPV: Sewage, refuse, cleaning and environmental services
The lotProcurement structure
single lot · value publishedLot #1RenewalPublished value£440,000,000
- Economic & financial standing
As per the procurement documents which are freely available to access via YorTender: yortender.eu-supply.com/login.asp ↗.
- Technical & professional ability
As per the procurement documents which are freely available to access via YorTender: yortender.eu-supply.com/login.asp ↗.
What it takes to wini
How this buyer will score bids.
The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).
Evaluation split and conditions of participation as published; the tender pack may add morei
How this buyer will score bids.
The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).
Published sub-criteria (4)
- Invitation to Submit Draft Submission (ISDS) / Final Tender (ISFT): 35%
- Invitation to Submit Draft Submission (ISDS) / Final Tender (ISFT): 10%
- Invitation to Submit Draft Submission (ISDS) / Final Tender (ISFT): 10%
- Invitation to Submit Draft Submission (ISDS) / Final Tender (ISFT): 45%
Published award criteria (4)
- Invitation to Submit Draft Submission (ISDS) / Final Tender (ISFT)
- Invitation to Submit Draft Submission (ISDS) / Final Tender (ISFT): Price: 40% - will be evaluated on a quantitative basis; and Robustness of Financial Submission: 5% - will be evaluated on a qualitative basis.
- Invitation to Submit Draft Submission (ISDS) / Final Tender (ISFT): Legal: Bidders must submit a Legal Mark-Up of the Contract to capture any proposed changes/amendments which must also include any new drafting insertions/proposals. The changes to the Contract proposed will be evaluated and awarded a score of between 0 and 5 in accordance with the Legal Scoring Methodology. The evaluation will consider how the proposed changes affect the overall balance of risk in the Contract as between the Council and the Supplier. This will be a single overall evaluation meaning that changes to specific parts of the Contract or specific clauses will not be evaluated separately, rather the evaluation will be based on the overall impact of all the changes which the Supplier has proposed to the Contract. Any risk transfer falling within the definition of "Critical" will result in a score of 0 regardless of any overall change in the balance of risk. If a bidder scores 0 for the Legal Criteria, this will result in disqualification from this procurement process and will not be evaluated any further.
- Invitation to Submit Draft Submission (ISDS) / Final Tender (ISFT): Social Value: The Qualitative proposal assessment of each commitment will be used to adjust the proxy of the respective Quantitative commitment. (e.g. If a qualitative score of 5 is received, 100% of proxy value will be applied; if a score of 3 is received, 60% of proxy; score of 1, 20%; and score of 0, 0%).
- Economic & financial standing
As per the procurement documents which are freely available to access via YorTender: yortender.eu-supply.com/login.asp ↗.
- Technical & professional ability
As per the procurement documents which are freely available to access via YorTender: yortender.eu-supply.com/login.asp ↗.
- Price carries 45 of 100 points: a 10% discount moves about 4.5 points. Quality carries 55 of 100: the paper moves it further than the discount.
Price arithmetic assumes straight proportional scoring; the tender pack may use another formula.
Procedure terms & legal framework
From the official record- Procedure method
- Competitive flexible procedure
- Legal basis
- UKPGA · 2023/54 Procurement Act 2023
- Procurement category
- Services
- Notice status
- Closed
- Procurement threshold
- Above threshold (FTS publication)
- Regulatory regime
- Standard
- Commercial structure
- Stand-alone contract (no framework)
- Competition type
- Competitive procedure
- GPA / WTO covered
- Unspecified in notice
- Recurring procurement
- Yes · next expected 1 Jan 2043
- First published
- 23 May 2025, 11:16 BST
- Last source update
- 15 Jun 2026, 16:23 BST
- Award evaluation window
- Submission end – 16 Aug 2027
- Authority reference
KMCSW-006- FTS notice number
2026/S 000-056327- Latest notice
- Tender notice (UK4)
- Classification (CPV)
- Delivery area
- Official registry OCID
ocds-h6vhtk-052174Find a Tender
- How it runs
This Tender Notice relates to the award of a public contract through a Competitive Flexible Procedure in accordance with section 20(1) and 20(2)(b) of the Procurement Act 2023 ('PA 2023').
This tender process will be formed of 6 stages:
Stage 1 - Procurement Specific Questionnaire (PSQ)
This stage is expected to establish the procurement, publish the Tender Notice and associated procurement documents, and enable interested suppliers to determine whether they wish to participate. The Council will use the PSQ stage to assess supplier eligibility, grounds for exclusion, economic and financial standing, technical and professional capability, and other relevant participation requirements. This stage may include, but is not limited to, access to initial draft contract documents, clarification questions and responses, assessment of PSQ submissions, and down-selection of suppliers to be invited to the next stage.
Stage 2 - Invitation to Submit Draft Submissions (ISDS)
The ISDS stage is expected to allow shortlisted suppliers to review the Council's refined requirements, draft contract, payment mechanism, service requirements and further data room information, and to develop initial views on the deliverability, risk allocation and commercial structure of the proposed solution. This stage may include, but is not limited to, supplier site visits, written clarification, submission of contract feedback and draft responses, and discussion of the key service matters. The Council may undertake an informal review of draft submissions to support dialogue and refinement of proposals; however, such review will not be scored and will not form part of the final tender evaluation. The Council may further refine the procurement documents where appropriate.
Stage 3 - Dialogue and Negotiation
This stage is expected to provide a structured opportunity for the Council and shortlisted suppliers to discuss and, where permitted by the procurement documents, negotiate matters relevant to the development of robust, deliverable and value for money final tenders. The dialogue may cover, but is not limited to, service design, interface arrangements, contract terms, risk allocation, pricing assumptions, payment mechanism, performance standards, innovation, mobilisation, workforce matters, sustainability and operational resilience. Any refinements to the procurement documents will be managed in accordance with the stated procedure and applicable transparency and equal treatment requirements.
Stage 4 - Invitation to Submit Final Tender (ISFT)
The ISFT stage is expected to close dialogue and invite shortlisted suppliers to submit their final tenders on the basis of the final procurement documents issued by the Council. Final tenders should respond fully to the Council's requirements and award criteria, should be based upon the suppliers' draft submissions as amended through dialogue, and should not deviate from what was agreed during the dialogue process. Final tenders may include, but are not limited to, method statements, pricing schedules, contractual confirmations, mobilisation proposals, performance commitments, social value proposals, carbon reduction commitments and any other information required by the ISFT. Suppliers will be expected to submit complete and compliant final tenders by the stated deadline.
Stage 5 - Evaluation
The evaluation stage is expected to involve assessment of final tenders against the published award criteria and evaluation methodology, with the objective of identifying the Most Advantageous Tender. The Council may undertake moderation, clarification of tenders where permitted, financial and commercial checks, legal and technical review, governance approvals and due diligence before confirming the outcome. This stage may include, but is not limited to, evaluation of quality, price, contract compliance and social value, deliverability, risk and resilience, followed by notification of the intended award decision and any required standstill or award processes.
Stage 6 - Preferred Supplier
The preferred supplier stage is expected to follow identification of the Most Advantageous Tender and to support completion of the steps required before and after contract award. This stage may include, but is not limited to, finalisation of the contract with the preferred supplier, completion of internal governance approval of the Full Business Case recommendation, issue of assessment summaries, publication of the Contract Award Notice, observance of the applicable standstill period, signature of the contract, publication of the Contract Details Notice and publication of a copy of the contract. The Council may also undertake any remaining legal, financial, technical, commercial and mobilisation checks required to support contract award and implementation.
The Authority will publish the Procurement Specific Questionnaire (PSQ) tender documentation, and other associated documents using the designated procurement portal YorTender: yortender.eu-supply.com/login.asp ↗.
- Risks
Known Unknowns
Purpose and Status
The Authority recognises that the delivery of long-term integrated waste management services may be affected by future regulatory, policy, and operational environment changes.
The matters set out in this section represent foreseeable areas of uncertainty ("Known Unknowns") which may arise during the Contract Period.
Bidders are advised that the Contract has been structured to address such uncertainties through defined contractual mechanisms, including:
- Clause 43 (Authority and Contractor Changes)
- Clause 44 (Change in Law)
- Schedule 21 (Change Protocol)
- Clauses 39-41 (Compensation Events, Relief Events and Excusing Causes)
- Emissions Trading Scheme
The introduction or expansion of statutory, regulatory, or fiscal requirements affecting the treatment, recovery, or disposal of Contract Waste, including but not limited to the application of the UK Emissions Trading Scheme to energy from waste facilities from 2028, may result in changes to the cost, scope, risk allocation, or delivery arrangements under the Contract.
- District heat network / heat offtake
The potential requirement for the Energy from Waste facility to interface with, connect to, or supply heat to a district heat network, including any future heat offtake arrangements, may result in changes to the cost, scope, risk allocation, operational requirements, asset configuration or delivery arrangements under the Contract.
Any requirement to connect to a heat network or modify facility configuration to enable heat offtake shall be treated as an Authority Change (where initiated by the Authority) or a Change in Law (where mandated by legislation) and shall be implemented in accordance with the Contract.
- Weaving Lane site
Future decisions relating to the operational use of the Weaving Lane HWRC site may require adjustments to site access, traffic management, operational interfaces, or implementation arrangements under the Contract. This may include movement between adjacent site areas, continued use of existing temporary arrangements, return to a previous site arrangement, or alternative access arrangements during the contract term.
Changes to site arrangements during the Contract Period shall be treated as an Authority Change, unless otherwise specified.
- Waste policy and service change
Future changes in legislation, regulation, policy or service changes affecting local authority waste services may result in changes to the cost, scope, risk allocation, operational requirements, or delivery arrangements under the Contract including without limitation, changes arising from Simpler Recycling, food waste requirements, Extended Producer Responsibility (EPR), Deposit Return Scheme (DRS), changes in Contract Waste tonnage or composition, recycling or treatment market availability, environmental compliance requirements, or future changes required to maintain statutory waste services.
These changes shall be implemented in accordance with the Contract.
- Potential future development of a Materials Recovery Facility
Future changes in recycling markets, collection methodologies, waste composition, regulatory requirements, regional Materials Recovery Facility capacity, or business continuity requirements may result in the need to reconsider the Council's approach to recycling treatment and transfer arrangements during the Contract term. This may include, in exceptional circumstances, potential procurement for the reinstatement of a Council-owned Materials Recovery Facility, or related infrastructure, and may result in changes to the cost, scope, risk allocation, operational requirements, asset configuration or delivery arrangements under the Contract.
- Performance Measures and KPIs
The Contract includes a Performance Management Framework (including Key Performance Indicators and Publishable Performance Indicators). The Authority reserves the right to review and amend such performance measures during the Contract Period to reflect changes in legislation, policy, service requirements, or best practice.
Any changes to performance measures shall be implemented in accordance with the Contract, including (where applicable):
- the Change Protocol (Schedule 21);
- provisions relating to performance monitoring and Publishable Performance Indicators; and
- the Payment Mechanism where performance measures impact deductions or payments.
Any such amendments will be limited to changes which do not alter the overall nature of the Contract and will be applied in a transparent and proportionate manner.
The Bidders shall undertake their own due diligence in accordance with Clause 6 of the Contract. For the avoidance of doubt any changes arising from the above will be implemented strictly in accordance with the Contract and applicable procurement law.
How it was run
Official notice- Requests to participate (first stage)
- 27 Jul 2026, 12:00 BST
- Submission deadline
- 27 Jul 2026, 12:00 BST
- Clarification deadline
- 13 Jul 2026, 12:00 BST
- Submission channel
- Official e-sourcing portal
- Electronic submission
- Allowed
- Accepted languages
- en
Timeline
23 May 2025 → 1 Apr 2028 · 8 dates- Planning notice published23 May 2025, 11:16 BST
- Tender notice published137 days ago15 Jun 2026, 16:23 BST
- Next notice expected136 days ago15 Jun 2026, 23:59 BST
- Market engagement136 days ago15 Jun 2026, 23:59 BST
- Suppliers interested in bidding for the IRWMS contract and wishing to attend a visit to the EfW facility during the planned shutdown period are invited to register their interest.
- Visits are currently proposed to take place over half-day appointment slots on 17th to 19th June 2026, subject to confirmation.
- Suppliers will be required to sign and return the Non-Disclosure Agreement ("NDA") (Appendix A) to be able to attend a Site Visit by the deadline of 15th June 2026.
- Suppliers will not be permitted to attend these Site Visits unless a completed and signed NDA has been received by the Authority prior to the planned Site Visit dates. Any Supplier that fails to comply with this requirement will not be permitted on Site.
- Suppliers will be able to visit the following Authority Site, accompanied by the Authority and the Incumbent Contractor:
- EfW, Vine Street, Huddersfield, HD1 6NT
- Suppliers are only permitted to bring a maximum of three (3) representatives to the Site visits, and Suppliers should be made aware that other Suppliers may also be attending at the same time.
- Suppliers are to submit a completed NDA (Appendix A) expressing an interest in attending a Site Visit, electronically via the internet using the YORtender Electronic Tendering System ("ETS") at yortender.eu-supply.com/login.asp ↗.
- The Authority will then communicate the exact date of your visit via the Messaging Function on the ETS. Suppliers should therefore ensure they are available for any given date between 17th and 19th June 2026.
- During the Site Visits, any questions should be noted down and raised via the Messaging Function on the ETS to help with equal treatment, transparency and consistency requirements.
- Clarification questions by109 days ago13 Jul 2026, 12:00 BST
- Submission deadline95 days ago27 Jul 2026, 12:00 BST
- Today30 Oct 2026
- Award decision expected byin 290 days16 Aug 2027, 23:59 BST
- Contract starts1 Apr 2028, 00:00 BST
Notice history
11 events · 6 releases on Find a Tender · since 23 May 2025- Pipeline notice published23 May 2025, 11:16 BSTUK1
- Preliminary market engagement notice published2 Oct 2025, 10:05 BSTUK2
- Published value published: £400,000,0002 Oct 2025, 10:05 BST
- Planned procurement notice published13 Nov 2025, 16:19 GMTUK3
- Procurement method changed13 Nov 2025, 16:19 GMT
- Planned procurement notice published17 Mar 2026, 13:08 GMTUK3
- Published value updated to £453,400,00017 Mar 2026, 13:08 GMTwas £400,000,000
- Preliminary market engagement notice published2 Jun 2026, 11:14 BSTUK2
- Tender notice published15 Jun 2026, 16:23 BSTUK4
- Published value updated to £440,000,00015 Jun 2026, 16:23 BSTwas £453,400,000
- Status changed to active15 Jun 2026, 16:23 BST
Published amendments (1)
The changes that have been made to the original UK3 notice are: 1) Estimated Tender Notice date. Previously this was stated the procurement process will be published in February 2026. This is now likely to be the end of April 2026 2) The term. Previously the Council were procuring an initial term date of 10 years + up to 5 years extension. It has now been decided an initial term date of 15 years w…
Routine re-releases (6)
- 2025-11: 1 release · 13 Nov 2025
- 2025-10: 1 release · 2 Oct 2025
- 2025-05: 1 release · 23 May 2025
Contracting authority & participating public bodies
Official documents & specifications (8)
Official links; attachments are not copiedTender pack and attachments
Notices published for this procedure
- Tender notice Tender notice on Find a Tender
- Preliminary market engagement notice Preliminary market engagement notice on Find a Tender
- Planned procurement notice Planned procurement notice on Find a Tender
- Planned procurement notice Planned procurement notice on Find a Tender
- Preliminary market engagement notice Preliminary market engagement notice on Find a Tender
- Pipeline notice Pipeline notice on Find a Tender