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Rosedale Upgrade Programme Solids Stream Upgrade (THP)
Details
| RFx ID : | 33231094 |
| Tender Name : | Rosedale Upgrade Programme Solids Stream Upgrade (THP) |
| Reference # : | 26-338-CPT |
| Open Date : | Q4 2025 |
| Indicative RFx Release Date : | Q1 2026 [?] |
| Tender Type : | Future Procurement Opportunity (FPO) |
| Project Status : | Confirmed [?] |
| Expected number of contracts offered : | 1 |
| Tender Coverage : | Sole Agency [?] |
| Categories : |
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| Regions: |
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| Required Pre-qualifications : | None |
| Contact : |
Stuart Bird stuart.bird@water.co.nz |
The opportunity
Watercare Services Limited (Watercare) advises the market of an upcoming procurement opportunity for the delivery of the Rosedale Solids Stream Upgrade, specifically the implementation of a Thermal Hydrolysis Plant (THP).
Following Watercare’s balance sheet separation from Auckland Council, Watercare has secured funding certainty for a $13.8bn capital programme over the next 10 years. To deliver this pipeline, Watercare is moving toward a programmatic delivery approach.
The $800m Rosedale Upgrade Programme serves as the "Pathfinder" for this new delivery strategy. The Solids Stream Upgrade (THP) is the primary project within this programme, representing a significant brownfield infrastructure investment.
What we will need
In 2026, Watercare will seek to procure a supplier to design and build the Rosedale Solid Stream Upgrade (THP).
The project involves the integration of a new Thermal Hydrolysis Plant into the existing, operational Rosedale Wastewater Treatment Plant (WWTP). The scope generally includes:
• Installation and integration of the Thermal Hydrolysis Plant (THP) procured directly by Watercare.
• Associated dewatering and sludge management infrastructure.
• Expansion of the Biogas and Cogeneration facility.
• Balance of Plant and extensive brownfield integration works.
Watercare is actively de-risking the project to clarify interfaces by investigation, design, and early works activities. However, acknowledging the residual complexity of integrating new biological processes into a live operating environment, the commercial framework will be structured to allocate risk to the party best able to manage it.
