United Utilities is procuring a multi-supplier framework valued at an estimated £20 million excluding VAT for installation, integration, testing and commissioning of operational technology across its water and wastewater infrastructure in North West England.
The opportunity, identified as PRO004917, covers build activities at treatment works, pumping stations, network assets and other operational locations. It is intended to support maintenance, enhancement and capital investment in the systems used to monitor and control physical processes.
The procurement was published on 27 October under a competitive flexible procedure. Suppliers must first meet the requirements of a Conditions of Participation Questionnaire before shortlisted applicants can progress to an Invitation to Negotiate stage.
The proposed framework would run from 1 April 2027 to 31 March 2032, subject to the final contract arrangements. The estimated £20 million is the potential value across the framework, not a guaranteed payment to any participating contractor. Appointed companies may subsequently compete for individual call-off projects.
The scope is described as operational technology build only. That term distinguishes installation and related engineering activities from a contract automatically covering every aspect of software development, plant operation or long-term systems management. The precise responsibilities of the buyer, equipment manufacturers and installation contractors will depend on each work package.
Operational technology includes equipment and software that measure, supervise and control physical processes. A water treatment installation may rely on level transmitters, flowmeters, actuated valves, pumps and programmable controllers connected to supervisory systems through industrial communications networks.
Measurements obtained from instruments can be used by a controller to adjust equipment within the configured operating rules. A variable-speed pump, for example, may respond to a measured level or pressure, while a supervisory system records operating information and provides authorised personnel with visibility of alarms and equipment status.
Installing such equipment is therefore an integration task as well as a mechanical or electrical one. Instruments must be suited to the measurement range and process conditions, wiring and communications must match the approved design, and control signals need to be associated with the correct physical devices.
The same engineering package can involve several contractors or suppliers. An instrument manufacturer may provide calibrated equipment, an electrical contractor may install cables and panels, and a control specialist may verify connections to the relevant operating system. The final commissioning process must demonstrate that these interfaces work together as intended.
Upgrades at existing water and wastewater sites can be constrained by the need to keep essential processes operating. Installation teams must account for restricted access, equipment isolation, available shutdown windows and interfaces with machinery already in service.
Replacing a field instrument illustrates the sequence. The existing measurement and its associated control function must be identified before work begins. Installation then requires appropriate connections, verification of the instrument range and confirmation that the receiving controller interprets its signal correctly.
A correctly wired instrument can still produce an unsuitable operating result if the engineering units, alarm limits or control configuration are wrong. Commissioning consequently needs to establish both that the physical installation is sound and that the relevant function behaves as specified.
The degree of testing depends on the system being installed. Electrical inspection, calibration, input and output checks, communications verification and controlled functional tests may all be relevant, while safety-related functions require the procedures applicable to their classification and duty.
A modification to a pumping station can also affect equipment beyond the immediate work area. Changing a signal or operating sequence may influence upstream storage, downstream flow or the way a remote operator responds to alarms. Those relationships need to be reviewed in the context of the actual site design.
United Utilities’ framework description identifies build services across a range of assets but does not publish the engineering drawings or specifications for future call-offs. It would therefore be premature to assign particular instrument packages or controller models to the contract.
Industrial sites also contain existing equipment installed at different times. New communication interfaces may need to exchange information with established controllers, telemetry devices and supervisory platforms. Compatibility cannot be assumed from the presence of an Ethernet connector or an apparently similar data format.
Where operational networks are affected, controlled access and configuration management form part of sound delivery practice. The public tender summary does not set out a detailed cybersecurity specification, so no particular security certification should be presented as a confirmed requirement without examining the procurement documents.
A multi-supplier arrangement would give United Utilities access to a group of contractors whose capability can be assessed before individual installation projects are required. Call-off competitions could then consider the specific equipment, location, programme and commercial terms applying to the work.
The model does not eliminate the need for site-specific planning. Each treatment works or network location has its own physical configuration, process constraints and operational procedures. A contractor experienced with one installation may still need to establish the requirements of another before work can proceed.
Applicants should expect the qualification stage to test their ability to deliver safely and consistently, although the complete conditions of participation are determined by the buyer’s tender documentation. The public summary identifies the two-stage procurement model but does not establish that any supplier has already passed its assessment.
The framework has not yet been awarded. The next confirmed development will be the progression of qualifying suppliers through the procurement stages, followed by appointments and any subsequent competitions for individual operational technology installation projects.
