West Central Bio-Resource · UK public procurement notice

At present, there are numerous sludge treatment centres (STCs) across Scotland which deploy a range of technologies including Advanced Anaerobic Digestion (AAD), Anaerobic Digestion (AD), liming, thermal drying and dewatering. With the return of the Private Finance Initiative (PFI) sites back to Scottish Water ownership over the next decade, Scottish Water is seeking to create a bioresource treatment asset base that will produce a Class A bioresource product suitable for recycling to agricultural land, maximise energy recovery and reduce the energy usage, carbon footprint and operating costs of bioresource treatment. To meet these aspirations and provide best overall customer value, Scottish Water has identified a need to rationalise the number of existing STCs across the country and construct strategically located energy centres employing thermal hydrolysis AAD Cambi technology.

This project covers the energy centre proposed for the West Central region, treating bioresource from Greater Glasgow and Central Scotland with a projected average throughput to 2040 of 85,000tDS/yr. Daldowie has been selected as the preferred location for the proposed energy centre. The existing PFI asset was designed in the late 1990s and is the current strategic STC for Greater Glasgow. The STC currently uses thermal drying technology and receives feedstock from the region's largest Waste Water Treatment Works (WwTWs) via the Greater Glasgow Sludge Main (GGSM) and road imports.

Land adjacent to the existing Daldowie site would need to be acquired for the installation of the proposed energy centre. Land purchase and planning discussions are ongoing with Glasgow City Council however, should Daldowie become unfeasible as the proposed location, an alternative greenfield location will be considered instead.

Scottish Water intends to implement a phased approach for Contractor engagement for this project, incorporating the following phases: -

• Phase 1 - Early Contractor Involvement
• Phase 2 - Design, Build and Commission

This Pre-Qualification Questionnaire (PQQ)/ Invitation to Negotiate (ITN) covers Phase 1 and is to undertake Early Contractor Involvement (ECI) activities to progress the design of the proposed energy centre to Gate 80 (design sufficiently progressed to allow development of target cost), considering buildability, commissioning, operation and maintenance aspects of the proposals. Scottish Water aims to appoint Contractor(s) to assist in the ECI phase, during which the ECI Contractor(s) are expected to collaborate with each other as well as the Design Consultant, the designated technology provider (Cambi) and Scottish Water to develop an agreed design for the project. The ECI Contractor(s) are expected to work with Scottish Water's Customer Service Delivery (CSD) teams to ensure buildability, commissioning, operation and maintenance are considered throughout the design, and Specialist Services Delivery (SSD) teams to understand and manage third party risks and provide information to support SSD Screening Report requests and third party applications.

Once the Gate 70/ 80 design deliverables are finalised, a design freeze will take place, following which the ECI Contractor(s) may be asked to provide a price and tender submission for Phase 2 Design & Build. Once the tenders have been reviewed, a Contractor may be appointed to undertake the agreed Phase 2 activities relating to the design, build and commissioning of the proposals to project acceptance. The appointed Contractor may decide whether to progress with the Design Consultant to continue as design support beyond Gate 80, or to engage an alternative consulting partner at this phase.

Further information is available within the Scope Document uploaded to Atamis in connection with this opportunity. Additional information: This opportunity can be accessed through this link atamis-scottishwater.my.salesforce-sites.com/ProSpend__CS_PublicL… ↗