Notice Information
Notice Title
UKRI-6064 ISP-1157 Replacement of Large ISIS Power Supply System
Notice Description
The ISIS Neutron and Muon Source Facility, part of UKRI's Science and Technology Facilities Council, are looking to procure a replacement three-phase Alternating Current (AC) Magnet Power Supply System to make up the losses in a resonant magnet circuit. The requirement is for a modular 1200 kVA three-phase AC voltage source power supply that includes a control system capable of regulating the designated magnet load current to a given setpoint and to a high level of stability. It is important to emphasise that the magnet load current to be regulated is not the same as the AC power supply output current and the measurement signal for the load current will be provided by the facility in the form of a DCCT with a -10/+10 V signal representative of the load circuit current. The three-phase output shall have a variable voltage output from 0 V to 250 V line-neutral and an output voltage accuracy of +-50 mV. The system shall be fed from a nominal 400 Vrms AC, 3-phase 50 Hz sinusoidal supply, intrinsically safe by design, with high efficiency, high reliability, high maintainability and fully compliant and marked with relevant standards.
Planning Information
UKRI will be holding a virtual Market Engagement Event on Thursday 9 July 2026 at 13:30 BST, providing an overview of the requirement. There will be an opportunity for suppliers to ask questions. If you are interested in attending, please email the below details to STFCprocurement@ukri.org, quoting the UKRI reference number (UKRI-6064) by Monday 6th July 2026. Company name: Attendee name: Email address:
Notice Details
Publication & Lifecycle
- Open Contracting ID
- ocds-h6vhtk-06b5f2
- Publication Source
- Find A Tender Service
- Latest Notice
- https://www.find-tender.service.gov.uk/Notice/056648-2026
- Current Stage
- Planning
- All Stages
- Planning
Procurement Classification
- Notice Type
- UK2 - Preliminary Market Engagement Notice
- Procurement Type
- Standard
- Procurement Category
- Goods
- Procurement Method
- Not Specified
- Procurement Method Details
- Not specified
- Tender Suitability
- SME
- Awardee Scale
- Not specified
Common Procurement Vocabulary (CPV)
- CPV Divisions
31 - Electrical machinery, apparatus, equipment and consumables; lighting
-
- CPV Codes
31682000 - Electricity supplies
31700000 - Electronic, electromechanical and electrotechnical supplies
Notice Value(s)
- Tender Value
- £3,000,000 £1M-£10M
- Lots Value
- Not specified
- Awards Value
- Not specified
- Contracts Value
- Not specified
Notice Dates
- Publication Date
- 16 Jun 20261 weeks ago
- Submission Deadline
- Not specified
- Future Notice Date
- 31 Jul 20262 months to go
- Award Date
- Not specified
- Contract Period
- 16 Dec 2026 - 16 Dec 2028 2-3 years
- Recurrence
- Not specified
Notice Status
- Tender Status
- Planning
- Lots Status
- Planning
- Awards Status
- Not Specified
- Contracts Status
- Not Specified
Buyer & Supplier
Contracting Authority (Buyer)
- Main Buyer
- UK RESEARCH & INNOVATION (UKRI)
- Contact Name
- Available with D3 Tenders Premium →
- Contact Email
- Available with D3 Tenders Premium →
- Contact Phone
- Available with D3 Tenders Premium →
Buyer Location
- Locality
- SWINDON, WILTSHIRE
- Postcode
- SN2 1FL
- Post Town
- Swindon
- Country
- England
-
- Major Region (ITL 1)
- TLK South West (England)
- Basic Region (ITL 2)
- TLK7 Gloucestershire and Wiltshire
- Small Region (ITL 3)
- TLK71 Swindon
- Delivery Location
- TLJ14 Oxfordshire CC
-
- Local Authority
- Swindon
- Electoral Ward
- Rodbourne Cheney
- Westminster Constituency
- Swindon North
Further Information
Notice Documents
-
https://www.find-tender.service.gov.uk/Notice/056648-2026
16th June 2026 - Preliminary market engagement notice on Find a Tender
Open Contracting Data Standard (OCDS)
The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts.
{
"tag": [
"compiled"
],
"id": "ocds-h6vhtk-06b5f2-2026-06-16T13:44:53+01:00",
"date": "2026-06-16T13:44:53+01:00",
"ocid": "ocds-h6vhtk-06b5f2",
"initiationType": "tender",
"parties": [
{
"id": "GB-PPON-PDQJ-7126-JDHG",
"name": "UK Research & Innovation (UKRI)",
"identifier": {
"scheme": "GB-PPON",
"id": "PDQJ-7126-JDHG"
},
"address": {
"streetAddress": "Polaris House",
"locality": "Swindon, Wiltshire",
"postalCode": "SN2 1FL",
"country": "GB",
"countryName": "United Kingdom",
"region": "UKK14"
},
"contactPoint": {
"email": "stfcprocurement@ukri.org"
},
"roles": [
"buyer"
],
"details": {
"url": "https://www.ukri.org/",
"classifications": [
{
"id": "publicAuthorityCentralGovernment",
"scheme": "UK_CA_TYPE",
"description": "Public authority - central government"
}
]
}
}
],
"buyer": {
"id": "GB-PPON-PDQJ-7126-JDHG",
"name": "UK Research & Innovation (UKRI)"
},
"planning": {
"milestones": [
{
"id": "engagement",
"type": "engagement",
"description": "UKRI will be holding a virtual Market Engagement Event on Thursday 9 July 2026 at 13:30 BST, providing an overview of the requirement. There will be an opportunity for suppliers to ask questions. If you are interested in attending, please email the below details to STFCprocurement@ukri.org, quoting the UKRI reference number (UKRI-6064) by Monday 6th July 2026. Company name: Attendee name: Email address:",
"dueDate": "2026-07-17T23:59:59+01:00",
"status": "scheduled"
}
],
"documents": [
{
"id": "056648-2026",
"documentType": "marketEngagementNotice",
"noticeType": "UK2",
"description": "Preliminary market engagement notice on Find a Tender",
"url": "https://www.find-tender.service.gov.uk/Notice/056648-2026",
"datePublished": "2026-06-16T13:44:53+01:00",
"format": "text/html"
}
]
},
"tender": {
"id": "UKRI-6064",
"legalBasis": {
"id": "2023/54",
"scheme": "UKPGA",
"uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents"
},
"title": "UKRI-6064 ISP-1157 Replacement of Large ISIS Power Supply System",
"description": "The ISIS Neutron and Muon Source Facility, part of UKRI's Science and Technology Facilities Council, are looking to procure a replacement three-phase Alternating Current (AC) Magnet Power Supply System to make up the losses in a resonant magnet circuit. The requirement is for a modular 1200 kVA three-phase AC voltage source power supply that includes a control system capable of regulating the designated magnet load current to a given setpoint and to a high level of stability. It is important to emphasise that the magnet load current to be regulated is not the same as the AC power supply output current and the measurement signal for the load current will be provided by the facility in the form of a DCCT with a -10/+10 V signal representative of the load circuit current. The three-phase output shall have a variable voltage output from 0 V to 250 V line-neutral and an output voltage accuracy of +-50 mV. The system shall be fed from a nominal 400 Vrms AC, 3-phase 50 Hz sinusoidal supply, intrinsically safe by design, with high efficiency, high reliability, high maintainability and fully compliant and marked with relevant standards.",
"items": [
{
"id": "1",
"additionalClassifications": [
{
"scheme": "CPV",
"id": "31682000",
"description": "Electricity supplies"
},
{
"scheme": "CPV",
"id": "31700000",
"description": "Electronic, electromechanical and electrotechnical supplies"
}
],
"deliveryAddresses": [
{
"region": "UKJ14",
"country": "GB",
"countryName": "United Kingdom"
}
],
"relatedLot": "1"
}
],
"value": {
"amountGross": 3600000,
"amount": 3000000,
"currency": "GBP"
},
"mainProcurementCategory": "goods",
"aboveThreshold": true,
"lots": [
{
"id": "1",
"suitability": {
"sme": true
},
"contractPeriod": {
"startDate": "2026-12-16T00:00:00Z",
"endDate": "2028-12-16T23:59:59Z"
},
"status": "planning"
}
],
"communication": {
"futureNoticeDate": "2026-07-31T23:59:59+01:00"
},
"status": "planning"
},
"language": "en"
}