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PROCUREMENT OPPORTUNITY

Wastewater Nitrous Oxide in Liquid Sensors and Controllers

UNITED UTILITIES WATER LIMITED · Transparency notice on Find a Tender

Tender information last checkedLast checked 30 Sept 2026, 06:54.

Opportunity overview

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.

Awarded to

Amounts belong to published awards or contracts. Where several suppliers share one value, it is labelled as shared and is not a supplier-specific allocation.

Published award value
£2m
Awarded
31 Jul 2025
Award ID
1
Status
pending
Identifier
GB-PPON PNQH-9554-PNGW
Location
Aarhus N, DK, 8200, Denmark

Classification

No classification was supplied.

Lots

  • Lot 1Value not stated

Documents and notices

Published notice details

Additional information from the published procurement release. Fields appear only when supplied by the source; check the original notice and tender documents before acting.

Scope, procedure and submissions

Id
ocds-h6vhtk-056afa
Status
complete
Procurement Method
direct
Procurement Method Details
Direct award
Why this procedure was chosen
PPN Issued evidences our market intelligence that Unisense are the only supplier currently able to provide this equipment

Legal basis

Id
2023/54
Scheme
UKPGA

Techniques

Has Framework Agreement
Yes

Framework Agreement

Type
closed

Special regime

utilities

Procedure reasons

Entry 1
Id
singleSuppliersTechnicalReasons

Lots and requirements

Entry 1
Id
1
Status
complete

Published documents

Entry 1
Id
conflictOfInterest
Description
Not published
Document Type
conflictOfInterest

Buyer, suppliers and contacts

Organisation 1
Id
GB-COH-02366678
Name
UNITED UTILITIES WATER LIMITED

Roles

buyer

Address

Region
UKD61
Country
GB
Locality
Great Sankey
Postal Code
WA5 3LP
Country Name
United Kingdom
Street Address
Haweswater House, Lingley Green Avenue

Details

Classifications

Entry 1
Id
privateUtility
Scheme
UK_CA_TYPE
Description
Private utility

Identifier

Id
02366678
Scheme
GB-COH

Contact

Name
Chris England

Additional Identifiers

Entry 1
Id
PVVB-5589-BWHX
Scheme
GB-PPON
Organisation 2
Id
GB-PPON-PNQH-9554-PNGW
Name
Unisense Environment A/S

Roles

supplier

Address

Region
DK
Country
DK
Locality
Aarhus N
Postal Code
8200
Country Name
Denmark
Street Address
Langdyssen 5

Details

Vcse
No
Scale
large
Sheltered Workshop
No
Public Service Mission Organization
No

Identifier

Id
PNQH-9554-PNGW
Scheme
GB-PPON

Contact

Award information

Award 1
Id
1
Date
1 Aug 2025, 00:00
Status
pending
Has Renewal
Yes
Above Threshold
Yes
Main Procurement Category
goods

Items

Item 1
Id
1
Related Lot
1

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom
Entry 2
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
35125100
Scheme
CPV
Description
Sensors

Value

Amount
2,000,000
Currency
GBP
Including VAT
2,400,000

Renewal

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

Documents

Entry 1
Id
045069-2025
Format
text/html
Notice Type
UK5
Description
Transparency notice on Find a Tender
Document Type
awardNotice
Published
1 Aug 2025, 10:13
Entry 2
Id
045082-2025
Format
text/html
Notice Type
UK6
Description
Contract award notice on Find a Tender
Document Type
awardNotice
Published
1 Aug 2025, 10:27

Suppliers

Supplier 1
Id
GB-PPON-PNQH-9554-PNGW
Name
Unisense Environment A/S

Milestones

Entry 1
Id
1
Type
futureSignatureDate
Status
scheduled
Due
15 Aug 2025, 23:59

Related lots

1

Contract period

Ends
15 Sept 2030, 23:59
Starts
16 Sept 2025, 00:00
Max Extent Date
15 Sept 2035, 23:59

Standstill Period

Ends
13 Aug 2025, 23:59

Recorded locations

  • Buyer location · Great Sankey · UKD61 · WA5 3LP · United Kingdom

Notice and amendment history

1 published notice version reviewed by ProcuraAxis.

1 VERSION
  1. ocds-h6vhtk-056afa-2025-08-01T10:27:37+01:00Transparency notice on Find a Tender ·