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PROCUREMENT OPPORTUNITY

CMF12100 remainder of project

UK Atomic Energy Authority · Transparency notice on Find a Tender

Tender information last checkedLast checked 1 Oct 2026, 06:08.

Opportunity overview

The requirement relates to the continuation of existing electrical, remedial, snagging, labelling, energisation/de-energisation support, commissioning support and integration works being undertaken by Optimum Electrical Engineering Ltd on the ESS Active Cells Facility project in Lund, Sweden. Optimum has been delivering the electrical installation and associated support works on site since the original competitively tendered arrangement. The remaining requirement is not a discrete new package of work that can be separated and competed without significant technical, safety, quality and programme risk. It is a continuation of ongoing works across partially completed electrical installations, live snagging, system interfaces, Quality Assurance handover, commissioning support and subcontractor Site Acceptance Test readiness. Optimum currently manages the electrical installation programme at the ESS Active Cells Facility site and is responsible for the day-to-day electrical safety activities associated with the works. Optimum has established site processes, RAMS, QA documentation routes, ESS competency arrangements and electrical safety responsibilities that are already embedded into the project delivery model. Optimum’s Lead Project Engineer has also held key electrical safety responsibilities on site, including AP(E)-type duties and authority to support switching arrangements agreed with ESS. Replacing Optimum would require these arrangements to be re-established, reassessed and accepted by ESS, which would introduce delay and additional safety assurance risk. A change in supplier at this stage would result in disproportionate technical difficulties and delivery risk. Any replacement supplier would need to mobilise, familiarise itself with the facility, review partially completed electrical works, understand historical design and installation decisions, engage with Optimum for technical and QA handover, establish RAMS and ESS competency approvals, and take responsibility for live electrical safety and commissioning interfaces. This would create duplicated effort, additional UKAEA management burden and a high risk of delay to the remaining installation, testing, commissioning and handover programme. There is also a regulatory constraint. UKAEA cannot directly undertake electrical installation works in Sweden because Swedish electrical installation companies must hold compliance officer status. UKAEA has previously been rejected by Sweden’s National Electrical Safety Board for company registration and compliance officer status. ESS holds this status but has not agreed for UKAEA to work under ESS’s compliance officer arrangements. Optimum holds the required Swedish compliance officer status and is therefore the current route through which UKAEA can continue electrical installation, energisation, de-energisation, commissioning support and associated electrical safety activities on site. The new contract will be supported by a defined Scope of Work, managed through the contract documentation, Primavera P6 programme, electrical package snagging list and UKAEA instruction. This will allow UKAEA to control, instruct, prioritise and monitor the remaining activities while retaining flexibility to respond to emerging snags, system readiness, external supplier delays and commissioning requirements.

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
£1.1m
Awarded
Not supplied
Award ID
1
Status
pending
Identifier
GB-PPON PXZM-1688-NYXQ
Location
Manchester, UKD35, SK1 3BP, United Kingdom

Classification

No classification was supplied.

Lots

  • Lot LOT-0000Value 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
RH/CMF 12100
Status
complete
Procurement Method
direct
Procurement Method Details
Direct award
Why this procedure was chosen
Single Supplier with unique Technical capability and regional certification in Sweden
Published risks
The requirement relates to the continuation of existing electrical, remedial, snagging, labelling, energisation/de-energisation support, commissioning support and integration works being undertaken by Optimum Electrical Engineering Ltd on the ESS Active Cells Facility project in Lund, Sweden. Optimum has been delivering the electrical installation and associated support works on site since the original competitively tendered arrangement. The remaining requirement is not a discrete new package of work that can be separated and competed without significant technical, safety, quality and programme risk. It is a continuation of ongoing works across partially completed electrical installations, live snagging, system interfaces, Quality Assurance handover, commissioning support and subcontractor Site Acceptance Test readiness. Optimum currently manages the electrical installation programme at the ESS Active Cells Facility site and is responsible for the day-to-day electrical safety activities associated with the works. Optimum has established site processes, RAMS, QA documentation routes, ESS competency arrangements and electrical safety responsibilities that are already embedded into the project delivery model. Optimum’s Lead Project Engineer has also held key electrical safety responsibilities on site, including AP(E)-type duties and authority to support switching arrangements agreed with ESS. Replacing Optimum would require these arrangements to be re-established, reassessed and accepted by ESS, which would introduce delay and additional safety assurance risk. A change in supplier at this stage would result in disproportionate technical difficulties and delivery risk. Any replacement supplier would need to mobilise, familiarise itself with the facility, review partially completed electrical works, understand historical design and installation decisions, engage with Optimum for technical and QA handover, establish RAMS and ESS competency approvals, and take responsibility for live electrical safety and commissioning interfaces. This would create duplicated effort, additional UKAEA management burden and a high risk of delay to the remaining installation, testing, commissioning and handover programme. There is also a regulatory constraint. UKAEA cannot directly undertake electrical installation works in Sweden because Swedish electrical installation companies must hold compliance officer status. UKAEA has previously been rejected by Sweden’s National Electrical Safety Board for company registration and compliance officer status. ESS holds this status but has not agreed for UKAEA to work under ESS’s compliance officer arrangements. Optimum holds the required Swedish compliance officer status and is therefore the current route through which UKAEA can continue electrical installation, energisation, de-energisation, commissioning support and associated electrical safety activities on site. The new contract will be supported by a defined Scope of Work, managed through the contract documentation, Primavera P6 programme, electrical package snagging list and UKAEA instruction. This will allow UKAEA to control, instruct, prioritise and monitor the remaining activities while retaining flexibility to respond to emerging snags, system readiness, external supplier delays and commissioning requirements.

Legal basis

Id
2023/54
Scheme
UKPGA

Procedure reasons

Entry 1
Id
singleSuppliersTechnicalReasons

Lots and requirements

Entry 1
Id
LOT-0000
Status
complete

Suitability

Sme
Yes

Published documents

Entry 1
Id
conflictOfInterest
Document Type
conflictOfInterest
Description
Not published

Buyer, suppliers and contacts

Organisation 1
Name
UK Atomic Energy Authority
Id
GB-PPON-PLJV-1169-JTDD

Identifier

Scheme
GB-PPON
Id
PLJV-1169-JTDD

Address

Street Address
Culham Science Centre
Locality
Oxfordshire
Postal Code
OX14 3DB
Country
GB
Country Name
United Kingdom
Region
UKJ14

Contact

Name
Hamid Rahman

Roles

buyer

Details

Classifications

Entry 1
Scheme
UK_CA_TYPE
Id
publicAuthoritySubCentralGovernment
Description
Public authority - sub-central government
Organisation 2
Name
OPTIMUM ELECTRICAL ENGINEERING LTD
Id
GB-PPON-PXZM-1688-NYXQ

Identifier

Scheme
GB-PPON
Id
PXZM-1688-NYXQ

Address

Street Address
Unit 8 & 8a Waterloo Park Ind Est, Upper Brook St Stockport,
Locality
Manchester
Postal Code
SK1 3BP
Country
GB
Country Name
United Kingdom
Region
UKD35

Contact

Name
Dave Shiel

Roles

supplier

Details

Scale
sme
Vcse
No

Award information

Award 1
Id
1
Title
The Provision of Optimum Electrical , Remedial & Integration works at ESS Active Cells Project in Sweden
Status
pending
Main Procurement Category
services
Above Threshold
Yes

Items

Item 1
Id
LOT-0000
Related Lot
LOT-0000

Additional Classifications

Entry 1
Scheme
CPV
Id
50000000
Description
Repair and maintenance services
Entry 2
Scheme
CPV
Id
44111511
Description
Electrical insulators
Entry 3
Scheme
CPV
Id
45300000
Description
Building installation work
Entry 4
Scheme
CPV
Id
45310000
Description
Electrical installation work

Delivery locations

Entry 1
Region
SE2
Country
SE
Country Name
Sweden

Value

Including VAT
1,308,000
Amount
1,090,000
Currency
GBP

Suppliers

Supplier 1
Id
GB-PPON-PXZM-1688-NYXQ
Name
OPTIMUM ELECTRICAL ENGINEERING LTD

Contract period

Starts
10 Jun 2026, 01:00
Ends
9 Apr 2027, 23:59

Related lots

LOT-0000

Documents

Entry 1
Id
051661-2026
Document Type
awardNotice
Notice Type
UK5
Description
Transparency notice on Find a Tender
Published
2 Jun 2026, 09:00
Format
text/html

Milestones

Entry 1
Id
1
Type
futureSignatureDate
Due
10 Jun 2026, 23:59
Status
scheduled

Recorded locations

  • Buyer location · Oxfordshire · UKJ14 · OX14 3DB · United Kingdom

Notice and amendment history

1 published notice version reviewed by ProcuraAxis.

1 VERSION
  1. 051661-2026Transparency notice on Find a Tender ·