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PROCUREMENT OPPORTUNITY

ESS Electrical , Remedial & Integration Works Project is Sweden

UK Atomic Energy Authority · award, contract

Tender information last checkedLast checked 1 Oct 2026, 06:17.

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.

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.

Contract value
£109k
Awarded
Not supplied
Contract signed
31 May 2026
Award ID
051619-2026-12100-1
Status
active
Identifier
08838713
Location
Stockport,, UK, SK1 3BP, United Kingdom

Classification

  • CPV45317000 — Other electrical installation work

Lots

  • 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.Value not stated

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
CMF12100 remainder of project
Status
complete
Main Procurement Category
works
Procurement Method
limited
Procurement Method Details
Negotiated without publication of a contract notice
Why this procedure was chosen
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. The remaining works are programme-critical and directly linked to system readiness, commissioning, subcontractor SATs and handover. Re-procuring or onboarding a new supplier would create an intolerable risk of delay, duplicated cost, loss of technical continuity, quality assurance issues and potential disruption to other subcontractors. It would also introduce serious reputational risk. ESS is a major European research infrastructure programme and delays to the UK-delivered Active Cells Facility could impact ESS operational readiness and the UK’s reputation as a reliable delivery partner. 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
32014L0024
Scheme
CELEX

Classification

Scheme
CPV
Id
45317000
Description
Other electrical installation work

Procedure reasons

Entry 1
Scheme
TED_PT_AWARD_CONTRACT_WITHOUT_CALL
Id
D_TECHNICAL
Description
The works, supplies or services can be provided only by a particular economic operator due to absence of competition for technical reasons
Entry 2
Scheme
TED_PT_AWARD_CONTRACT_WITHOUT_CALL
Id
D_ADD_DELIVERIES_ORDERED
Description
Additional deliveries by the original supplier ordered under the strict conditions stated in the directive

Lots and requirements

Entry 1
Id
1
Description
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.
Has Options
No

Award criteria

Criteria

Criterion 1
Name
Remedial
Type
quality
Description
90
Criterion 2
Name
Resources Rate
Type
cost
Description
10

Items and delivery

Item 1
Id
1
Related Lot
1

Delivery locations

Entry 1
Region
SE

Buyer, suppliers and contacts

Organisation 1
Name
UK Atomic Energy Authority
Id
GB-FTS-165139

Identifier

Legal Name
UK Atomic Energy Authority
Id
PLJV-1169-JTDD

Address

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

Contact

Name
Hamid Rahman

Roles

buyer

Details

Classifications

Entry 1
Scheme
TED_CA_TYPE
Id
MINISTRY
Description
Ministry or any other national or federal authority, including their regional or local subdivisions
Entry 2
Scheme
COFOG
Description
Fusion Research
Organisation 2
Name
OPTIMUM ELECTRICAL ENGINEERING LTD
Id
GB-FTS-182549

Identifier

Legal Name
OPTIMUM ELECTRICAL ENGINEERING LTD
Id
08838713

Address

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

Roles

supplier

Details

Scale
large
Organisation 3
Name
UK atomic Energy Authority
Id
GB-FTS-182550

Identifier

Legal Name
UK atomic Energy Authority

Address

Street Address
Culham Science Centre
Locality
Abingdon
Postal Code
OX14 3DB
Country Name
United Kingdom

Contact

Roles

reviewBody

Award information

Award 1
Id
051619-2026-12100-1
Title
ESS
Status
active

Related lots

1

Suppliers

Supplier 1
Id
GB-FTS-182549
Name
OPTIMUM ELECTRICAL ENGINEERING LTD

Contracts and changes

Entry 1
Id
051619-2026-12100-1
Award ID
051619-2026-12100-1
Title
ESS
Status
active
Date Signed
1 Jun 2026, 00:00

Value

Amount
109,000
Currency
GBP

Recorded locations

  • Buyer location · Oxfordshire · UK · OX14 3DB · United Kingdom
  • Delivery location · SE

Notice and amendment history

1 published notice version reviewed by ProcuraAxis.

1 VERSION
  1. 051619-2026award, contract ·