Award

Wastewater Nitrous Oxide in Liquid Sensors and Controllers

  • UNITED UTILITIES WATER LIMITED

UK6: Contract award notice - Procurement Act 2023 - view information about notice types

Notice identifier: 2025/S 000-045082

Procurement identifier (OCID): ocds-h6vhtk-056afa (view related notices)

Published 1 August 2025, 10:27am



Scope

Description

This Contract award notice is linked to PPN Notice identifier: 2025/S 000-028704 linked here: https://www.find-tender.service.gov.uk/Notice/028704-2025?origin=Dashboard#top

UU are looking to source sensor equipment capable of detecting & measuring Nitrous Oxide in liquid.

The requirement of detection in liquid is fundamental to this product; sensors for gas state do not meet this requirement.

UU are looking for 120 sensors for immediate requirement, along with appropriate fitments, controllers, pipe mounting equipment, cabling and calibration kits. The initial requirement should also include consumables to run the sensors for 12 months. Our research shows probe heads have a usable lifespan of 6 months. There will likely be on ongoing requirement for spares and consumables for 5 years.

Our market intelligence leads us to the conclusion there is only 1 suitable product on the market currently, from Unisense, shown here: https://unisense-environment.com/products/n2o-wastewater-sensor/

We are expecting the cost to come in at approximately £1M based on the product set from Unisense over 12 months. With a consumables requirement of a further £1M over the following 4 years.

This notice is designed to test our sourcing intelligence with the market for competing product availability.

Commercial tool

Establishes a framework


Contract 1

Supplier

Contract value

  • £2,000,000 excluding VAT
  • £2,400,000 including VAT

Above the relevant threshold

Award decision date

1 August 2025

Standstill period

  • End: 13 August 2025
  • 8 working days

Earliest date the contract will be signed

15 August 2025

Contract dates (estimated)

  • 16 September 2025 to 15 September 2030
  • Possible extension to 15 September 2035
  • 10 years

Description of possible extension:

Contract can be extended in line with the regulatory cycle if there are still no other suppliers in the market

Main procurement category

Goods

CPV classifications

  • 35125100 - Sensors

Contract locations

  • UK - United Kingdom

Procedure

Procedure type

Direct award

Special regime

Utilities

Direct award justification

Single supplier - technical reasons

PPN Issued evidences our market intelligence that Unisense are the only supplier currently able to provide this equipment


Supplier

Unisense Environment A/S

  • Public Procurement Organisation Number: PNQH-9554-PNGW

Langdyssen 5

Aarhus N

8200

Denmark

Small or medium-sized enterprise (SME): No

Voluntary, community or social enterprise (VCSE): No

Supported employment provider: No

Public service mutual: No

Contract 1


Contracting authority

UNITED UTILITIES WATER LIMITED

  • Companies House: 02366678
  • Public Procurement Organisation Number: PVVB-5589-BWHX

Haweswater House, Lingley Green Avenue

Great Sankey

WA5 3LP

United Kingdom

Region: UKD61 - Warrington

Organisation type: Private utility