Unmodified official OCDS data retained by Tenderline for this procurement process.
Complete current OCDS release JSON
{
"id": "058412-2025",
"tag": [
"tenderUpdate"
],
"date": "2025-09-22T11:16:21+01:00",
"ocid": "ocds-h6vhtk-055cfb",
"buyer": {
"id": "GB-COH-SC213461",
"name": "SCOTTISH HYDRO ELECTRIC TRANSMISSION PLC"
},
"tender": {
"id": "10244",
"lots": [
{
"id": "1",
"title": "HVDC & FACTS",
"value": {
"amount": 55000000,
"currency": "GBP",
"amountGross": 66000000
},
"status": "active",
"renewal": {
"description": "2 x 12 months extensions"
},
"hasRenewal": true,
"description": "Expertise for all aspects of HVDC & FACTS devices including but \nnot limited to:\n(1) System design,\n(2) Network & system studies,\n(3) Earthing system design,\n(4) Station / Equipment layout design,\n(5) Plant & Equipment design / testing,\n(6) DC Control & Protection design and settings development,\n(7) DC Control & Protection system testing using PSCAD and RSCAD/RTDS,\n(8) AC & DC Control & Protection interfacing and integration,\n(9) AC Protection & Control scheme designAC Protection & Control setting calculation including short-circuit modelling and \ncalculations,\n(11) Operator interfaces & SCADA systems,\n(12) Auxiliary power systems,\n(13) Secondary mechanical & electrical systems,\n(14) Commissioning and commissioning management, and\n(15) Operations & maintenance.",
"suitability": {
"sme": true
},
"awardCriteria": {
"criteria": [
{
"name": "As per PQQ documentation",
"type": "quality"
}
],
"weightingDescription": "As per PQQ documentation"
},
"contractPeriod": {
"endDate": "2028-12-09T23:59:59+00:00",
"startDate": "2025-12-10T00:00:00+00:00",
"maxExtentDate": "2030-12-09T23:59:59+00:00"
},
"selectionCriteria": {
"criteria": [
{
"type": "economic",
"description": "As per PQQ documentation"
},
{
"type": "technical",
"description": "As per PQQ documentation"
}
]
}
},
{
"id": "2",
"title": "Cable Systems",
"value": {
"amount": 55000000,
"currency": "GBP",
"amountGross": 66000000
},
"status": "active",
"renewal": {
"description": "2 x 12 months extensions"
},
"hasRenewal": true,
"description": "Expertise for HV Cable Systems: This scope pertains to AC and DC \ntechnology, for land and submarine applications. \n(1) Cable system design (i.e., thermal rating calculations using both analytical and finite \nelement methods, induced voltages / currents, electro-magnetic fields, etc),\n(2) Cable routing design and risk assessment,\n(3) Installation design (i.e., pulling tensions, thermo-mechanical & marine engineering \ncalculations),\n(4) Mechanical protection design,\n(5) Monitoring & communication fibre optic cable system design,\n(6) Testing and test witnessing (factory and site),\n(7) Site and vessel representation for installation activities,\n(8) Factory audit (quality & technical),\n(9) Failure investigation and root cause analysis (RCA),\n(10) Reliability, availability & maintainability analysis,\n(11) Operations & maintenance strategy and planning,\n(12) Technical training to Employer’s personnel,\n(13) Diagnosis, analysis, and interpretation of cable system health & integrity based on \nmonitoring data acquired from field.",
"suitability": {
"sme": true
},
"awardCriteria": {
"criteria": [
{
"name": "As per PQQ documentation",
"type": "quality"
}
],
"weightingDescription": "As per PQQ documentation"
},
"contractPeriod": {
"endDate": "2028-12-09T23:59:59+00:00",
"startDate": "2025-12-10T00:00:00+00:00",
"maxExtentDate": "2030-12-09T23:59:59+00:00"
},
"selectionCriteria": {
"criteria": [
{
"type": "economic",
"description": "As per PQQ documentation"
},
{
"type": "technical",
"description": "As per PQQ documentation"
}
]
}
},
{
"id": "3",
"title": "AC Networks",
"value": {
"amount": 55000000,
"currency": "GBP",
"amountGross": 66000000
},
"status": "active",
"renewal": {
"description": "2 x 12 months extensions"
},
"hasRenewal": true,
"description": "Expertise for all aspects of AC Networks including but not limited \nto:\n(1) Station design,\n(2) Earthing system design,\n(3) Plant & Equipment design / testingProtection & Control scheme design,\n(5) Protection & Control setting calculation including short-circuit modelling and \ncalculations,\n(6) Protection & Control system testing,\n(7) Operator interfaces & SCADA systems,\n(8) Overhead line design, consenting, and installation,\n(9) Auxiliary power systems,\n(10) Secondary mechanical & electrical systems,\n(11) Commissioning and commissioning management, and\n(12) Operations & maintenance",
"suitability": {
"sme": true
},
"awardCriteria": {
"criteria": [
{
"name": "As per PQQ documentation",
"type": "quality"
}
],
"weightingDescription": "As per PQQ documentation"
},
"contractPeriod": {
"endDate": "2028-12-09T23:59:59+00:00",
"startDate": "2025-12-10T00:00:00+00:00",
"maxExtentDate": "2030-12-09T23:59:59+00:00"
},
"selectionCriteria": {
"criteria": [
{
"type": "economic",
"description": "As per PQQ documentation"
},
{
"type": "technical",
"description": "As per PQQ documentation"
}
]
}
},
{
"id": "4",
"title": "Offshore and Subsea Services",
"value": {
"amount": 55000000,
"currency": "GBP",
"amountGross": 66000000
},
"status": "active",
"renewal": {
"description": "2 x 12 months extensions"
},
"hasRenewal": true,
"description": "Expertise for all aspects of preparation of requirements & \nspecification documents to provide technical direction and governance for design, delivery, \noperation, maintenance, and decommissioning of offshore substation installations\nincluding but not limited to:\n(1) Site selection and desktop studies for option selection stage,\n(2) Cable routing design and selection including burial risk assessment (CBRA),\n(3) Unexploded ordinance (UXO) survey and risk assessment,\n(4) Cable protection system (CPS) design and analysis,\n(5) On-bottom stability and free span analysis for subsea cable installation,\n(6) Burial assessment study (BAS) for subsea cable installation,\n(7) Design, feasibility and risk assessment for horizontal directional drilling (HDD),\n(8) Corrosion analysis for subsea cable installation,\n(9) Loadout, spooling, unspooling of subsea cable systems,\n(10) Jacket primary & topside secondary structural design,\n(11) Pile foundation and grouted connection for jacket sleeved piles,\n(12) Geotechnical ground modelling and interpretation (structures, piles, and subsea \ncable installation)\n(13) Metocean interpretation for structural design jacket & topside,\n(14) Fabrication, transportation, and installation studies (HLV & float over options),\n(15) Material, fabrication, corrosion, & protection design for topside and substructure,\n(16) LV electrical design for ducting, cable routing and cable cabinets, interfacing with \ntopside structural design\n(17)Lifecycle and condition monitoring for jacket primary and secondary topside \nstructures,\n(18) Operations and maintenance requirements for complete offshore substation asset,\n(19) Design risk management, from concept design through to decommissioning,\n(20) Decommissioning, and\n(21) Design verification and certification support",
"suitability": {
"sme": true
},
"awardCriteria": {
"criteria": [
{
"name": "As per PQQ documentation",
"type": "quality"
}
],
"weightingDescription": "As per PQQ documentation"
},
"contractPeriod": {
"endDate": "2028-12-09T23:59:59+00:00",
"startDate": "2025-12-10T00:00:00+00:00",
"maxExtentDate": "2030-12-09T23:59:59+00:00"
},
"selectionCriteria": {
"criteria": [
{
"type": "economic",
"description": "As per PQQ documentation"
},
{
"type": "technical",
"description": "As per PQQ documentation"
}
]
}
}
],
"items": [
{
"id": "1",
"relatedLot": "1",
"deliveryAddresses": [
{
"region": "UK",
"country": "GB",
"countryName": "United Kingdom"
}
],
"additionalClassifications": [
{
"id": "71300000",
"scheme": "CPV",
"description": "Engineering services"
},
{
"id": "71320000",
"scheme": "CPV",
"description": "Engineering design services"
},
{
"id": "71356000",
"scheme": "CPV",
"description": "Technical services"
}
]
},
{
"id": "2",
"relatedLot": "2",
"deliveryAddresses": [
{
"region": "UK",
"country": "GB",
"countryName": "United Kingdom"
}
],
"additionalClassifications": [
{
"id": "71300000",
"scheme": "CPV",
"description": "Engineering services"
},
{
"id": "71320000",
"scheme": "CPV",
"description": "Engineering design services"
},
{
"id": "71356000",
"scheme": "CPV",
"description": "Technical services"
}
]
},
{
"id": "3",
"relatedLot": "3",
"deliveryAddresses": [
{
"region": "UK",
"country": "GB",
"countryName": "United Kingdom"
}
],
"additionalClassifications": [
{
"id": "71300000",
"scheme": "CPV",
"description": "Engineering services"
},
{
"id": "71320000",
"scheme": "CPV",
"description": "Engineering design services"
},
{
"id": "71356000",
"scheme": "CPV",
"description": "Technical services"
}
]
},
{
"id": "4",
"relatedLot": "4",
"deliveryAddresses": [
{
"region": "UK",
"country": "GB",
"countryName": "United Kingdom"
}
],
"additionalClassifications": [
{
"id": "71300000",
"scheme": "CPV",
"description": "Engineering services"
},
{
"id": "71320000",
"scheme": "CPV",
"description": "Engineering design services"
},
{
"id": "71356000",
"scheme": "CPV",
"description": "Technical services"
}
]
}
],
"title": "FW Services - Specialist Engineering Services 1030",
"value": {
"amount": 55000000,
"currency": "GBP",
"amountGross": 66000000
},
"status": "active",
"documents": [
{
"id": "conflictOfInterest",
"description": "Not published",
"documentType": "conflictOfInterest"
},
{
"id": "058412-2025",
"url": "https://www.find-tender.service.gov.uk/Notice/058412-2025",
"format": "text/html",
"noticeType": "UK4",
"description": "Tender notice on Find a Tender",
"documentType": "tenderNotice",
"datePublished": "2025-09-22T11:16:21+01:00"
}
],
"procedure": {
"features": "PQQ to be issued - Two step procedure under PA23 utilising Jaggaer / Find a tender. Following PQQ evaluation, down selection will be made to move to\nITT stage. Awards will be made per Lot. Total of four (4) available Lots"
},
"amendments": [
{
"id": "058412-2025",
"description": "Submission deadline extension to 02/10/25"
}
],
"legalBasis": {
"id": "2023/54",
"uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents",
"scheme": "UKPGA"
},
"techniques": {
"frameworkAgreement": {
"type": "closed",
"method": "withAndWithoutReopeningCompetition",
"description": "Detailed in PQQ / ITT documentation"
},
"hasFrameworkAgreement": true
},
"awardPeriod": {
"endDate": "2025-11-24T23:59:59+00:00"
},
"description": "SSEN Transmission is the licence holder for the transmission system in the north of Scotland. To meet the government’s target for renewable generation, and for the development of the existing infrastructure, significant work is being undertaken on the transmission system. This work includes the building and rebuilding of overhead lines, the development of grid substations, the construction of HVDC converter and cable systems, and the construction of FACTS devices. The projects and work being undertaken are in line with the NESO (National Electric System Operator) published Holistic Network Design (HND, Pathway to 2030 and Beyond 2030) reports. SSEN Transmission is responsible for delivering the complex technology and network solutions relating to any Scottish Island or network solutions with offshore assets. Particularly, any electricity system transmission infrastructure, either offshore or onshore, including HVDC, FACTs, AC networks, cable systems, and offshore installations\nThe purpose of establishing this Services Framework is to ensure SSEN Transmission has access to a range of specialist engineering services.\nThe Services will include but not be limited to engineering competencies related to engineering management, engineering drawings, plant/equipment/system specification, electrical design, civil design, offshore installation design, offshore works, construction-site support, installation support, commissioning support, consent related works, engineering compliance, risk management, risk analysis, and design assurance. \nThe Consultant will be able to provide support during all project stages including concept, option selection, FEED, detailed design, manufacturing, testing, construction, installation, and commissioning stages.\nThe Services will be Lotted.\nLot 1: HVDC & FACTS: Expertise in all aspects of HVDC and FACTS devices.\nLot 2 :Cable Systems: Expertise in HV Cable Systems, covering both AC and DC technology for land and submarine applications.\nLot 3; AC Networks: Expertise in all aspects of AC Networks.\nLot 4: Offshore and Subsea Services: Expertise in preparing requirements and specification documents to provide technical direction and governance for the design, delivery, operation, maintenance, and decommissioning of offshore substation installations.",
"enquiryPeriod": {
"endDate": "2025-09-25T12:00:00+01:00"
},
"specialRegime": [
"utilities"
],
"aboveThreshold": true,
"submissionTerms": {
"languages": [
"en"
],
"electronicSubmissionPolicy": "allowed"
},
"procurementMethod": "selective",
"mainProcurementCategory": "services",
"submissionMethodDetails": "Scottish Hydro Electric Transmission plc invite interested suppliers to view the PQQ Documents on our Jaggaer eprocurement system under \"Current Opportunities\" here:\nhttps://sse.app.jaggaer.com/esop/guest/go/opportunity/detail?opportunityId=436\nFull details of the service required and how to respond to the Pre-Qualification Questionnaire can be found on that page",
"procurementMethodDetails": "Competitive flexible procedure",
"expressionOfInterestDeadline": "2025-10-02T12:00:00+01:00"
},
"parties": [
{
"id": "GB-COH-SC213461",
"name": "SCOTTISH HYDRO ELECTRIC TRANSMISSION PLC",
"roles": [
"buyer"
],
"address": {
"region": "UKM77",
"country": "GB",
"locality": "Perth",
"postalCode": "PH1 3AQ",
"countryName": "United Kingdom",
"streetAddress": "Inveralmond House, 200 Dunkeld Road"
},
"details": {
"url": "http://www.ssen.co.uk",
"classifications": [
{
"id": "privateUtility",
"scheme": "UK_CA_TYPE",
"description": "Private utility"
}
]
},
"identifier": {
"id": "SC213461",
"scheme": "GB-COH"
},
"contactPoint": {
"name": "Janis Hepburn",
"email": "janis.hepburn@sse.com"
}
}
],
"language": "en",
"initiationType": "tender"
}Complete JSON history (5 releases)
22 Sept 2025 · 058412-2025 · tenderUpdate
{
"id": "058412-2025",
"tag": [
"tenderUpdate"
],
"date": "2025-09-22T11:16:21+01:00",
"ocid": "ocds-h6vhtk-055cfb",
"buyer": {
"id": "GB-COH-SC213461",
"name": "SCOTTISH HYDRO ELECTRIC TRANSMISSION PLC"
},
"tender": {
"id": "10244",
"lots": [
{
"id": "1",
"title": "HVDC & FACTS",
"value": {
"amount": 55000000,
"currency": "GBP",
"amountGross": 66000000
},
"status": "active",
"renewal": {
"description": "2 x 12 months extensions"
},
"hasRenewal": true,
"description": "Expertise for all aspects of HVDC & FACTS devices including but \nnot limited to:\n(1) System design,\n(2) Network & system studies,\n(3) Earthing system design,\n(4) Station / Equipment layout design,\n(5) Plant & Equipment design / testing,\n(6) DC Control & Protection design and settings development,\n(7) DC Control & Protection system testing using PSCAD and RSCAD/RTDS,\n(8) AC & DC Control & Protection interfacing and integration,\n(9) AC Protection & Control scheme designAC Protection & Control setting calculation including short-circuit modelling and \ncalculations,\n(11) Operator interfaces & SCADA systems,\n(12) Auxiliary power systems,\n(13) Secondary mechanical & electrical systems,\n(14) Commissioning and commissioning management, and\n(15) Operations & maintenance.",
"suitability": {
"sme": true
},
"awardCriteria": {
"criteria": [
{
"name": "As per PQQ documentation",
"type": "quality"
}
],
"weightingDescription": "As per PQQ documentation"
},
"contractPeriod": {
"endDate": "2028-12-09T23:59:59+00:00",
"startDate": "2025-12-10T00:00:00+00:00",
"maxExtentDate": "2030-12-09T23:59:59+00:00"
},
"selectionCriteria": {
"criteria": [
{
"type": "economic",
"description": "As per PQQ documentation"
},
{
"type": "technical",
"description": "As per PQQ documentation"
}
]
}
},
{
"id": "2",
"title": "Cable Systems",
"value": {
"amount": 55000000,
"currency": "GBP",
"amountGross": 66000000
},
"status": "active",
"renewal": {
"description": "2 x 12 months extensions"
},
"hasRenewal": true,
"description": "Expertise for HV Cable Systems: This scope pertains to AC and DC \ntechnology, for land and submarine applications. \n(1) Cable system design (i.e., thermal rating calculations using both analytical and finite \nelement methods, induced voltages / currents, electro-magnetic fields, etc),\n(2) Cable routing design and risk assessment,\n(3) Installation design (i.e., pulling tensions, thermo-mechanical & marine engineering \ncalculations),\n(4) Mechanical protection design,\n(5) Monitoring & communication fibre optic cable system design,\n(6) Testing and test witnessing (factory and site),\n(7) Site and vessel representation for installation activities,\n(8) Factory audit (quality & technical),\n(9) Failure investigation and root cause analysis (RCA),\n(10) Reliability, availability & maintainability analysis,\n(11) Operations & maintenance strategy and planning,\n(12) Technical training to Employer’s personnel,\n(13) Diagnosis, analysis, and interpretation of cable system health & integrity based on \nmonitoring data acquired from field.",
"suitability": {
"sme": true
},
"awardCriteria": {
"criteria": [
{
"name": "As per PQQ documentation",
"type": "quality"
}
],
"weightingDescription": "As per PQQ documentation"
},
"contractPeriod": {
"endDate": "2028-12-09T23:59:59+00:00",
"startDate": "2025-12-10T00:00:00+00:00",
"maxExtentDate": "2030-12-09T23:59:59+00:00"
},
"selectionCriteria": {
"criteria": [
{
"type": "economic",
"description": "As per PQQ documentation"
},
{
"type": "technical",
"description": "As per PQQ documentation"
}
]
}
},
{
"id": "3",
"title": "AC Networks",
"value": {
"amount": 55000000,
"currency": "GBP",
"amountGross": 66000000
},
"status": "active",
"renewal": {
"description": "2 x 12 months extensions"
},
"hasRenewal": true,
"description": "Expertise for all aspects of AC Networks including but not limited \nto:\n(1) Station design,\n(2) Earthing system design,\n(3) Plant & Equipment design / testingProtection & Control scheme design,\n(5) Protection & Control setting calculation including short-circuit modelling and \ncalculations,\n(6) Protection & Control system testing,\n(7) Operator interfaces & SCADA systems,\n(8) Overhead line design, consenting, and installation,\n(9) Auxiliary power systems,\n(10) Secondary mechanical & electrical systems,\n(11) Commissioning and commissioning management, and\n(12) Operations & maintenance",
"suitability": {
"sme": true
},
"awardCriteria": {
"criteria": [
{
"name": "As per PQQ documentation",
"type": "quality"
}
],
"weightingDescription": "As per PQQ documentation"
},
"contractPeriod": {
"endDate": "2028-12-09T23:59:59+00:00",
"startDate": "2025-12-10T00:00:00+00:00",
"maxExtentDate": "2030-12-09T23:59:59+00:00"
},
"selectionCriteria": {
"criteria": [
{
"type": "economic",
"description": "As per PQQ documentation"
},
{
"type": "technical",
"description": "As per PQQ documentation"
}
]
}
},
{
"id": "4",
"title": "Offshore and Subsea Services",
"value": {
"amount": 55000000,
"currency": "GBP",
"amountGross": 66000000
},
"status": "active",
"renewal": {
"description": "2 x 12 months extensions"
},
"hasRenewal": true,
"description": "Expertise for all aspects of preparation of requirements & \nspecification documents to provide technical direction and governance for design, delivery, \noperation, maintenance, and decommissioning of offshore substation installations\nincluding but not limited to:\n(1) Site selection and desktop studies for option selection stage,\n(2) Cable routing design and selection including burial risk assessment (CBRA),\n(3) Unexploded ordinance (UXO) survey and risk assessment,\n(4) Cable protection system (CPS) design and analysis,\n(5) On-bottom stability and free span analysis for subsea cable installation,\n(6) Burial assessment study (BAS) for subsea cable installation,\n(7) Design, feasibility and risk assessment for horizontal directional drilling (HDD),\n(8) Corrosion analysis for subsea cable installation,\n(9) Loadout, spooling, unspooling of subsea cable systems,\n(10) Jacket primary & topside secondary structural design,\n(11) Pile foundation and grouted connection for jacket sleeved piles,\n(12) Geotechnical ground modelling and interpretation (structures, piles, and subsea \ncable installation)\n(13) Metocean interpretation for structural design jacket & topside,\n(14) Fabrication, transportation, and installation studies (HLV & float over options),\n(15) Material, fabrication, corrosion, & protection design for topside and substructure,\n(16) LV electrical design for ducting, cable routing and cable cabinets, interfacing with \ntopside structural design\n(17)Lifecycle and condition monitoring for jacket primary and secondary topside \nstructures,\n(18) Operations and maintenance requirements for complete offshore substation asset,\n(19) Design risk management, from concept design through to decommissioning,\n(20) Decommissioning, and\n(21) Design verification and certification support",
"suitability": {
"sme": true
},
"awardCriteria": {
"criteria": [
{
"name": "As per PQQ documentation",
"type": "quality"
}
],
"weightingDescription": "As per PQQ documentation"
},
"contractPeriod": {
"endDate": "2028-12-09T23:59:59+00:00",
"startDate": "2025-12-10T00:00:00+00:00",
"maxExtentDate": "2030-12-09T23:59:59+00:00"
},
"selectionCriteria": {
"criteria": [
{
"type": "economic",
"description": "As per PQQ documentation"
},
{
"type": "technical",
"description": "As per PQQ documentation"
}
]
}
}
],
"items": [
{
"id": "1",
"relatedLot": "1",
"deliveryAddresses": [
{
"region": "UK",
"country": "GB",
"countryName": "United Kingdom"
}
],
"additionalClassifications": [
{
"id": "71300000",
"scheme": "CPV",
"description": "Engineering services"
},
{
"id": "71320000",
"scheme": "CPV",
"description": "Engineering design services"
},
{
"id": "71356000",
"scheme": "CPV",
"description": "Technical services"
}
]
},
{
"id": "2",
"relatedLot": "2",
"deliveryAddresses": [
{
"region": "UK",
"country": "GB",
"countryName": "United Kingdom"
}
],
"additionalClassifications": [
{
"id": "71300000",
"scheme": "CPV",
"description": "Engineering services"
},
{
"id": "71320000",
"scheme": "CPV",
"description": "Engineering design services"
},
{
"id": "71356000",
"scheme": "CPV",
"description": "Technical services"
}
]
},
{
"id": "3",
"relatedLot": "3",
"deliveryAddresses": [
{
"region": "UK",
"country": "GB",
"countryName": "United Kingdom"
}
],
"additionalClassifications": [
{
"id": "71300000",
"scheme": "CPV",
"description": "Engineering services"
},
{
"id": "71320000",
"scheme": "CPV",
"description": "Engineering design services"
},
{
"id": "71356000",
"scheme": "CPV",
"description": "Technical services"
}
]
},
{
"id": "4",
"relatedLot": "4",
"deliveryAddresses": [
{
"region": "UK",
"country": "GB",
"countryName": "United Kingdom"
}
],
"additionalClassifications": [
{
"id": "71300000",
"scheme": "CPV",
"description": "Engineering services"
},
{
"id": "71320000",
"scheme": "CPV",
"description": "Engineering design services"
},
{
"id": "71356000",
"scheme": "CPV",
"description": "Technical services"
}
]
}
],
"title": "FW Services - Specialist Engineering Services 1030",
"value": {
"amount": 55000000,
"currency": "GBP",
"amountGross": 66000000
},
"status": "active",
"documents": [
{
"id": "conflictOfInterest",
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}27 Aug 2025 · 051623-2025 · tenderUpdate
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}27 Aug 2025 · 051616-2025 · tenderUpdate
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"endDate": "2028-12-09T23:59:59+00:00",
"startDate": "2025-12-10T00:00:00+00:00",
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"selectionCriteria": {
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"title": "FW Services - Specialist Engineering Services 1030",
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{
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"description": "SSEN Transmission is the licence holder for the transmission system in the north of Scotland. To meet the government’s target for renewable generation, and for the development of the existing infrastructure, significant work is being undertaken on the transmission system. This work includes the building and rebuilding of overhead lines, the development of grid substations, the construction of HVDC converter and cable systems, and the construction of FACTS devices. The projects and work being undertaken are in line with the NESO (National Electric System Operator) published Holistic Network Design (HND, Pathway to 2030 and Beyond 2030) reports. SSEN Transmission is responsible for delivering the complex technology and network solutions relating to any Scottish Island or network solutions with offshore assets. Particularly, any electricity system transmission infrastructure, either offshore or onshore, including HVDC, FACTs, AC networks, cable systems, and offshore installations\nThe purpose of establishing this Services Framework is to ensure SSEN Transmission has access to a range of specialist engineering services.\nThe Services will include but not be limited to engineering competencies related to engineering management, engineering drawings, plant/equipment/system specification, electrical design, civil design, offshore installation design, offshore works, construction-site support, installation support, commissioning support, consent related works, engineering compliance, risk management, risk analysis, and design assurance. \nThe Consultant will be able to provide support during all project stages including concept, option selection, FEED, detailed design, manufacturing, testing, construction, installation, and commissioning stages.\nThe Services will be Lotted.\nLot 1: HVDC & FACTS: Expertise in all aspects of HVDC and FACTS devices.\nLot 2 :Cable Systems: Expertise in HV Cable Systems, covering both AC and DC technology for land and submarine applications.\nLot 3; AC Networks: Expertise in all aspects of AC Networks.\nLot 4: Offshore and Subsea Services: Expertise in preparing requirements and specification documents to provide technical direction and governance for the design, delivery, operation, maintenance, and decommissioning of offshore substation installations.",
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"parties": [
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"name": "SCOTTISH HYDRO ELECTRIC TRANSMISSION PLC",
"roles": [
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"address": {
"region": "UKM77",
"country": "GB",
"locality": "Perth",
"postalCode": "PH1 3AQ",
"countryName": "United Kingdom",
"streetAddress": "Inveralmond House, 200 Dunkeld Road"
},
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},
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}
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],
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"initiationType": "tender"
}27 Aug 2025 · 051536-2025 · tender
{
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"date": "2025-08-27T11:38:54+01:00",
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"currency": "GBP",
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},
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},
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},
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"description": "Expertise for all aspects of AC Networks including but not limited \nto:\n(1) Station design,\n(2) Earthing system design,\n(3) Plant & Equipment design / testingProtection & Control scheme design,\n(5) Protection & Control setting calculation including short-circuit modelling and \ncalculations,\n(6) Protection & Control system testing,\n(7) Operator interfaces & SCADA systems,\n(8) Overhead line design, consenting, and installation,\n(9) Auxiliary power systems,\n(10) Secondary mechanical & electrical systems,\n(11) Commissioning and commissioning management, and\n(12) Operations & maintenance",
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},
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},
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}
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}
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"title": "FW Services - Specialist Engineering Services 1030",
"value": {
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"currency": "GBP",
"amountGross": 66000000
},
"status": "active",
"documents": [
{
"id": "conflictOfInterest",
"description": "Not published",
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{
"id": "051536-2025",
"url": "https://www.find-tender.service.gov.uk/Notice/051536-2025",
"format": "text/html",
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"description": "Tender notice on Find a Tender",
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"procedure": {
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"awardPeriod": {
"endDate": "2025-11-24T23:59:59+00:00"
},
"description": "SSENT is responsible for delivering complex technology and network solutions for electricity system transmission infrastructure, both offshore and onshore. This includes HVDC, FACTs, AC networks, cable systems, and offshore installations\nThis Prior Information Notice is seeking expressions of interest from suppliers who can provide a range of Specialist Engineering services. SSENT is currently developing a formal tender for the provision of Specialist Engineering services, which it is aiming to launch within the next 2 months. \nThe Specialist Engineering Services will be contracted under a non-committal framework(s) and will run for an initial 3-year period, with options for a further 2 x 1-year extensions (subject to agreement by SSENT)\nSSENT requires suppliers who have the necessary resources and technical capabilities to provide the services which are anticipated, but not limited, to include the following:\nCivil & Building: Expertise in civil, building, and construction works related to HVDC and FACTS devices.\nHVDC & FACTS: Expertise in all aspects of HVDC and FACTS devices.\nCable Systems: Expertise in HV Cable Systems, covering both AC and DC technology for land and submarine applications.\nAC Networks: Expertise in all aspects of AC Networks.\nOffshore and Subsea Services: Expertise in preparing requirements and specification documents to provide technical direction and governance for the design, delivery, operation, maintenance, and decommissioning of offshore substation installations.\nIt is anticipated these Services will be Lotted \nMinimum Criteria to be invited to take part in a Tender:\nSuppliers must return their Expression of Interest by the deadline date to be invited to take part in a pre-qualification (PQQ) process. Only suppliers that pass the PQQ criteria will be invited to take part in the Invitation to Tender (ITT). \nSubsequent PQQ and ITT activity will be managed via the Jaggaer Sourcing Portal. \nPlease email your Expression of Interest to Janis Hepburn - Senior Category Manager at: janis.hepburn@sse.com\nIf you have any further questions, please email them to the address above. \nThe deadline for submission of your Expression of Interest is 12:00 hours 8th August 2025",
"enquiryPeriod": {
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"specialRegime": [
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"parties": [
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"address": {
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"postalCode": "PH1 3AQ",
"countryName": "United Kingdom",
"streetAddress": "Inveralmond House, 200 Dunkeld Road"
},
"details": {
"url": "http://www.ssen.co.uk",
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"language": "en",
"initiationType": "tender"
}10 Jul 2025 · 038970-2025 · planning
{
"id": "038970-2025",
"tag": [
"planning"
],
"date": "2025-07-10T14:09:49+01:00",
"ocid": "ocds-h6vhtk-055cfb",
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"tender": {
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{
"id": "1",
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},
"contractPeriod": {
"endDate": "2028-11-30T23:59:59+00:00",
"startDate": "2025-12-10T00:00:00+00:00",
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}
}
],
"items": [
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{
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},
{
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}
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}
],
"title": "FW Services - Specialist Engineering Services 1030",
"value": {
"amount": 55000000,
"currency": "GBP",
"amountGross": 66000000
},
"status": "planned",
"legalBasis": {
"id": "2023/54",
"uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents",
"scheme": "UKPGA"
},
"description": "SSENT is responsible for delivering complex technology and network solutions for electricity system transmission infrastructure, both offshore and onshore. This includes HVDC, FACTs, AC networks, cable systems, and offshore installations\nThis Prior Information Notice is seeking expressions of interest from suppliers who can provide a range of Specialist Engineering services. SSENT is currently developing a formal tender for the provision of Specialist Engineering services, which it is aiming to launch within the next 2 months. \nThe Specialist Engineering Services will be contracted under a non-committal framework(s) and will run for an initial 3-year period, with options for a further 2 x 1-year extensions (subject to agreement by SSENT)\nSSENT requires suppliers who have the necessary resources and technical capabilities to provide the services which are anticipated, but not limited, to include the following:\nCivil & Building: Expertise in civil, building, and construction works related to HVDC and FACTS devices.\nHVDC & FACTS: Expertise in all aspects of HVDC and FACTS devices.\nCable Systems: Expertise in HV Cable Systems, covering both AC and DC technology for land and submarine applications.\nAC Networks: Expertise in all aspects of AC Networks.\nOffshore and Subsea Services: Expertise in preparing requirements and specification documents to provide technical direction and governance for the design, delivery, operation, maintenance, and decommissioning of offshore substation installations.\nIt is anticipated these Services will be Lotted \nMinimum Criteria to be invited to take part in a Tender:\nSuppliers must return their Expression of Interest by the deadline date to be invited to take part in a pre-qualification (PQQ) process. Only suppliers that pass the PQQ criteria will be invited to take part in the Invitation to Tender (ITT). \nSubsequent PQQ and ITT activity will be managed via the Jaggaer Sourcing Portal. \nPlease email your Expression of Interest to Janis Hepburn - Senior Category Manager at: janis.hepburn@sse.com\nIf you have any further questions, please email them to the address above. \nThe deadline for submission of your Expression of Interest is 12:00 hours 8th August 2025",
"communication": {
"futureNoticeDate": "2025-09-30T23:59:59+01:00"
},
"specialRegime": [
"utilities"
],
"aboveThreshold": true,
"mainProcurementCategory": "services"
},
"parties": [
{
"id": "GB-COH-SC213461",
"name": "SCOTTISH HYDRO ELECTRIC TRANSMISSION PLC",
"roles": [
"buyer"
],
"address": {
"region": "UKM77",
"country": "GB",
"locality": "Perth",
"postalCode": "PH1 3AQ",
"countryName": "United Kingdom",
"streetAddress": "Inveralmond House, 200 Dunkeld Road"
},
"details": {
"url": "http://www.ssen.co.uk",
"classifications": [
{
"id": "privateUtility",
"scheme": "UK_CA_TYPE",
"description": "Private utility"
}
]
},
"identifier": {
"id": "SC213461",
"scheme": "GB-COH"
},
"contactPoint": {
"name": "Janis Hepburn",
"email": "janis.hepburn@sse.com"
}
}
],
"language": "en",
"planning": {
"documents": [
{
"id": "038970-2025",
"url": "https://www.find-tender.service.gov.uk/Notice/038970-2025",
"format": "text/html",
"noticeType": "UK1",
"description": "Pipeline notice on Find a Tender",
"documentType": "plannedProcurementNotice",
"datePublished": "2025-07-10T14:09:49+01:00"
}
]
},
"initiationType": "tender"
}