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Published 10 Jan 2024, 11:18 GMT

Official UK procurement notice

Marine Survey Framework · UK public procurement notice

Official notice

Authority: NATIONAL GRID UK LIMITED (Public body)·Consortium: 2 public authorities

Framework agreement9 lotsServicesNegotiated procedure with prior call for competition
Sectors: Architecture & Engineering (71) Delivery: Belgium (BE)Germany (DE)Denmark (DK)
+8 moreSpain (ES)France (FR)Ireland (IE)Iceland (IS)Netherlands (NL)Norway (NO)Sweden (SE)UK
Framework ceiling (notional)£250,000,000total for 9 lots · framework ceiling, not attributable revenue
Submissions closed 13 Feb 2024awarded 16 Jun 2025
Lots 9see the lot list below

What is being bought9 lots · detail below

Published requirement description

National Grid is an international Electricity and Gas Network Company based in the UK, with

operations in north-eastern US. And one of the largest investor-owned energy companies in

the world.

National Grid are looking to set up a multi-year Marine Survey Framework to service offshore

cable laying as part of the Great Grid Upgrade and may be utilised in the future for any

Hydrogen Pipeline projects as applicable.

The Framework will cover the full gamut of survey disciplines required for cable lay and

subsequent maintenance. Including Geophysical, Geotechnical, Environmental,

Intertidal/landing, Unexploded Ordinance, Maintenance with flexibility to award Turnkey

requirements.

The Framework is seen as being an important part of National Grid's maritime requirements

to allow for a more rapid contracting of surveys potentially in parallel with other project

elements that traditionally have been programmed sequentially.

All data and associated metadata resulting from these surveys will be required to fall in line

with relevant UK and international standards such as IHO S44, EUNIS and MEDIN to enable

data archiving and sharing as required.

Page 4 to 37

National Grid has committed in our Climate Transition Plan to achieve close to zero

emissions by 2050 and science based intermediary targets aligned to a 1.5 degree pathway

for our UK Electricity Transmission, System Operator and Distribution businesses. To

achieve this ambitious target, we need to ensure all our suppliers are on a similar path and

this Framework will look to leverage novel and autonomous technologies to achieve this.

The Framework will look to incentivise companies on the Framework to reduce the project

footprint where possible. All projects will also require the companies to provide accurate

carbon footprint reporting.

To register your interest in this Procurement event and to obtain the pre-qualification

documentation applicants are to email: [email protected]

using the wording 'Registering Interest for Marine Survey Framework (if you have them) your

Ariba AN number (Network ID), name, email address and contact phone number for all

contacts within your organisation who will need to receive Ariba messages and administer

your online submissions. Following receipt of this information National Grid will invite you to

the Ariba event where all the pre-qualification documentation is contained including further

instructions.

Please note if you have already engaged with us as part of our market engagement and

Request for Information activities, National Grid may already have invited you to the Ariba

Event upon launch of the tender.

CPV: Marine survey services

Lots and requirements (9)Procurement structure

9 lots · all with a published value

Every one of these 3 lots carries the same published figure, £20,000,000: it is the framework's maximum for the whole notice, not each lot's own budget, and no share per lot is published. The cards below say ceiling above rather than repeat it.

Lot #1GeophysicalCancelledRenewalPublished value£30,000,000

Non-intrusive surveys generally for route development along a corridor of seabed, including

the collection, processing, reporting and delivery of bathymetric data; seabed classification

and detection of objects with dimensions of 0.25m and larger; identification and

characterisation of the sub-sea floor to around 25m depth; sub-surface measurements at

landfall and detection of larger scale anthropomorphic magnetic anomalies such as pipelines

and wrecks. This lot may also be used for maintenance where deemed necessary due to the

scale or technical requirements. Collection methods are not limited to but currently utilise

Single and Multi-beam Echo Sounders, Side Scan Sonars, Sub-Bottom Profilers, seismic

refraction equipment and Magnetometers. ROV work utilising equipment mentioned above,

video and pipe trackers may also be required where existing assets are being crossed or

where maintenance work requires larger assets to be deployed. Additional information: Non-intrusive surveys generally for route development along a corridor of seabed, including

the collection, processing, reporting and delivery of bathymetric data; seabed classification

and detection of objects with dimensions of 0.25m and larger; identification and

characterisation of the sub-sea floor to around 25m depth; sub-surface measurements at

landfall and detection of larger scale anthropomorphic magnetic anomalies such as pipelines

and wrecks. This lot may also be used for maintenance where deemed necessary due to the

scale or technical requirements. Collection methods are not limited to but currently utilise

Single and Multi-beam Echo Sounders, Side Scan Sonars, Sub-Bottom Profilers, seismic

refraction equipment and Magnetometers. ROV work utilising equipment mentioned above,

video and pipe trackers may also be required where existing assets are being crossed or

where maintenance work requires larger assets to be deployed.

Delivery listed: Belgium (BE), Germany (DE), Denmark (DK), Spain (ES), France (FR), Ireland (IE), Iceland (IS), Netherlands (NL), Norway (NO), Sweden (SE), London
Extensions: Plus 2 yearsVariant bids: not allowed
Lot #2GeotechnicalCancelledRenewalPublished value£35,000,000

Intrusive surveys to resolve the composition of the upper layers (5 to 10m) of seabed

sediment along corridors already subject to a geophysical survey. Collection methods are

not limited to, but currently utilise Core Penetration Tests and Vibrocorer sampling. This

Page 9 to 37

work includes data collection from the landfall area to offshore. Nearshore, Intertidal and

land elements may include the requirement for borehole testing to approximately 20m

depth.

A variety of companies are being sought that can offer coverage of all areas as well as those

that may only offer a subset of the geographical scopes. Additional information: National Grid UK Limited will conduct the procurement and enter into the framework

agreement with the successfully appointed suppliers for its own benefit and for the benefit

Page 10 to 37

of the entities identified below.

National Grid UK Limited or any of the following entities shall be entitled to call off from the

framework agreement and enter into contracts resulting from the call off:

  1. Any parent undertakings or subsidiary undertakings (each term as defined in section 1162

Companies Act 2006 except that references in that section to "majority" shall be replaced

by reference to "25% or more") of National Grid UK Limited and any subsidiary undertakings

of any such parent undertakings at the time of the call off including without limitation:

a) National Grid Electricity Transmission Plc

b) National Grid LionLink Limited

c) National Grid Nautilus Limited

d) National Grid Continental Limited

e) National Grid Interconnector Holdings Limited

f) National Grid Interconnectors Limited

g) National Grid North Sea Link Limitedh) National Grid Viking Link Limited

i) National Grid IFA 2 Limited

j) National Grid NSN Link Limited

  1. Any entity that is acting as a project partner with any National Grid call off partner

(identified in paragraph 1 above) and which calls off jointly with any such National Grid entity

including, without limitation,:

a) Scottish Hydro Electric Transmission Plc

b) TenneT TSO B.V.

c) TenneT TSO GmbH

d) TenneT Offshore GmbH

e) Elia Asset NV/SA

Page 11 to 37

f) Energinet Eltransmission A/S

g) Statnett SF

h) Transmission system operators and other developers and/or operators of HVDC projects;

and/or

  1. Any special purpose vehicle, incorporated joint venture or contractual joint venture,

between any of the parties identified in paragraphs 1 and 2 above.

It should be noted that, whilst National Grid Interconnector Holdings Limited and any of its

subsidiaries whether current or future, which hold an interconnector licence, and National

Grid Interconnectors Limited, are included within the scope of the Marine Survey Framework

agreement, and therefore entitled to call off under it, these entities are not subject to the

Utilities Contracts Regulations 2016 or any other relevant procurement regime. These

entities' participation in this procurement process and/or the framework agreement does

not cause them to be subject to those rules in whole or in part.

Delivery listed: Belgium (BE), Germany (DE), Denmark (DK), Spain (ES), France (FR), Ireland (IE), Iceland (IS), Netherlands (NL), Norway (NO), Sweden (SE), London
Extensions: Plus 2 yearsVariant bids: not allowed
Lot #3EnvironmentalCancelledRenewalceiling above

Collection of data to establish the benthic ecology along chosen routes. Currently utilises

the interpretation of acoustic geophysical data, video and photographic surveys of the

benthic environment and benthic grab/core sampling, although other techniques such as

eDNA sampling may be considered depending on the agreement of consent agencies.

Laboratory testing of samples and subsequent reporting will be included with this work. This

work includes data collection from the intertidal area to offshore.

A variety of companies are being sought that can offer coverage of all areas as well as those

that may only offer a subset of the geographical scopes. Additional information: National Grid UK Limited will conduct the procurement and enter into the framework

agreement with the successfully appointed suppliers for its own benefit and for the benefit

of the entities identified below.

National Grid UK Limited or any of the following entities shall be entitled to call off from the

framework agreement and enter into contracts resulting from the call off:

  1. Any parent undertakings or subsidiary undertakings (each term as defined in section 1162

Companies Act 2006 except that references in that section to "majority" shall be replaced

by reference to "25% or more") of National Grid UK Limited and any subsidiary undertakings

of any such parent undertakings at the time of the call off including without limitation:

a) National Grid Electricity Transmission Plc

b) National Grid LionLink Limited

c) National Grid Nautilus Limited

d) National Grid Continental Limited

e) National Grid Interconnector Holdings Limited

f) National Grid Interconnectors Limited

g) National Grid North Sea Link Limitedh) National Grid Viking Link Limited

i) National Grid IFA 2 Limited

j) National Grid NSN Link Limited

  1. Any entity that is acting as a project partner with any National Grid call off partner

(identified in paragraph 1 above) and which calls off jointly with any such National Grid entity

including, without limitation,:

a) Scottish Hydro Electric Transmission Plc

Page 14 to 37

b) TenneT TSO B.V.

c) TenneT TSO GmbH

d) TenneT Offshore GmbH

e) Elia Asset NV/SA

f) Energinet Eltransmission A/S

g) Statnett SF

h) Transmission system operators and other developers and/or operators of HVDC projects;

and/or

  1. Any special purpose vehicle, incorporated joint venture or contractual joint venture,

between any of the parties identified in paragraphs 1 and 2 above.

It should be noted that, whilst National Grid Interconnector Holdings Limited and any of its

subsidiaries whether current or future, which hold an interconnector licence, and National

Grid Interconnectors Limited, are included within the scope of the Marine Survey Framework

agreement, and therefore entitled to call off under it, these entities are not subject to the

Utilities Contracts Regulations 2016 or any other relevant procurement regime. These

entities' participation in this procurement process and/or the framework agreement does

not cause them to be subject to those rules in whole or in part.

Delivery listed: Belgium (BE), Germany (DE), Denmark (DK), Spain (ES), France (FR), Ireland (IE), Iceland (IS), Netherlands (NL), Norway (NO), Sweden (SE), London
Extensions: Plus 2 yearsVariant bids: not allowed
Lot #4Intertidal/LandingCancelledRenewalPublished value£15,000,000

Non-intrusive survey of the intertidal and topographic elements of the cable landing site

utilising bathymetric/topographic lidar and imagery techniques to provide a continuous

elevation model and classification of the seabed/land. It is expected that this will be from

approximately from the 5m LAT depth contour to at least 250m inland but may extend

further in both directions depending on project requirements. While it is expected that

manned platforms will be required for some of this work, UAV operations for smaller area

requirements may also be suitable. This work may include regular operation and

maintenance surveys to assess the physical security of the cable in this zone. Additional information: National Grid UK Limited will conduct the procurement and enter into the framework

agreement with the successfully appointed suppliers for its own benefit and for the benefit

of the entities identified below.

National Grid UK Limited or any of the following entities shall be entitled to call off from the

framework agreement and enter into contracts resulting from the call off:

  1. Any parent undertakings or subsidiary undertakings (each term as defined in section 1162

Companies Act 2006 except that references in that section to "majority" shall be replaced

by reference to "25% or more") of National Grid UK Limited and any subsidiary undertakings

of any such parent undertakings at the time of the call off including without limitation:

a) National Grid Electricity Transmission Plc

b) National Grid LionLink Limited

c) National Grid Nautilus Limited

d) National Grid Continental Limited

e) National Grid Interconnector Holdings Limited

f) National Grid Interconnectors Limited

g) National Grid North Sea Link Limitedh) National Grid Viking Link Limited

i) National Grid IFA 2 Limited

Page 17 to 37

j) National Grid NSN Link Limited

  1. Any entity that is acting as a project partner with any National Grid call off partner

(identified in paragraph 1 above) and which calls off jointly with any such National Grid entity

including, without limitation,:

a) Scottish Hydro Electric Transmission Plc

b) TenneT TSO B.V.

c) TenneT TSO GmbH

d) TenneT Offshore GmbH

e) Elia Asset NV/SA

f) Energinet Eltransmission A/S

g) Statnett SF

h) Transmission system operators and other developers and/or operators of HVDC projects;

and/or

  1. Any special purpose vehicle, incorporated joint venture or contractual joint venture,

between any of the parties identified in paragraphs 1 and 2 above.

It should be noted that, whilst National Grid Interconnector Holdings Limited and any of its

subsidiaries whether current or future, which hold an interconnector licence, and National

Grid Interconnectors Limited, are included within the scope of the Marine Survey Framework

agreement, and therefore entitled to call off under it, these entities are not subject to the

Utilities Contracts Regulations 2016 or any other relevant procurement regime. These

entities' participation in this procurement process and/or the framework agreement does

not cause them to be subject to those rules in whole or in part.

Delivery listed: Belgium (BE), Germany (DE), Denmark (DK), Spain (ES), France (FR), Ireland (IE), Iceland (IS), Netherlands (NL), Norway (NO), Sweden (SE), London
Extensions: Plus 2 yearsVariant bids: not allowed
Lot #5UXO Route SurveyCancelledRenewalPublished value£60,000,000

Collection of both land and marine detailed hi-resolution geophysical data to allow the

provision of potential UXO targets to be identified. This will include a range of non-intrusive

marine techniques including Multi-Beam Echo Sounders, Side Scan Sonars and

Magnetometers but optimised for UXO detection and identification along a narrower route

corridor. Land surveys will be in line with industry best practice currently utilising

magnetometers only. Additional information: National Grid UK Limited will conduct the procurement and enter into the framework

agreement with the successfully appointed suppliers for its own benefit and for the benefit

of the entities identified below.

National Grid UK Limited or any of the following entities shall be entitled to call off from the

framework agreement and enter into contracts resulting from the call off:

  1. Any parent undertakings or subsidiary undertakings (each term as defined in section 1162

Companies Act 2006 except that references in that section to "majority" shall be replaced

by reference to "25% or more") of National Grid UK Limited and any subsidiary undertakings

of any such parent undertakings at the time of the call off including without limitation:

a) National Grid Electricity Transmission Plc

b) National Grid LionLink Limited

c) National Grid Nautilus Limited

d) National Grid Continental Limited

e) National Grid Interconnector Holdings Limited

f) National Grid Interconnectors Limited

Page 20 to 37

g) National Grid North Sea Link Limitedh) National Grid Viking Link Limited

i) National Grid IFA 2 Limited

j) National Grid NSN Link Limited

  1. Any entity that is acting as a project partner with any National Grid call off partner

(identified in paragraph 1 above) and which calls off jointly with any such National Grid entity

including, without limitation,:

a) Scottish Hydro Electric Transmission Plc

b) TenneT TSO B.V.

c) TenneT TSO GmbH

d) TenneT Offshore GmbH

e) Elia Asset NV/SA

f) Energinet Eltransmission A/S

g) Statnett SF

h) Transmission system operators and other developers and/or operators of HVDC projects;

and/or

  1. Any special purpose vehicle, incorporated joint venture or contractual joint venture,

between any of the parties identified in paragraphs 1 and 2 above.

It should be noted that, whilst National Grid Interconnector Holdings Limited and any of its

subsidiaries whether current or future, which hold an interconnector licence, and National

Grid Interconnectors Limited, are included within the scope of the Marine Survey Framework

agreement, and therefore entitled to call off under it, these entities are not subject to the

Utilities Contracts Regulations 2016 or any other relevant procurement regime. These

entities' participation in this procurement process and/or the framework agreement does

not cause them to be subject to those rules in whole or in part.

Delivery listed: Belgium (BE), Germany (DE), Denmark (DK), Spain (ES), France (FR), Ireland (IE), Iceland (IS), Netherlands (NL), Norway (NO), Sweden (SE), London
Extensions: 2 plus yearsVariant bids: not allowed
Lot #6UXO Target Investigation. Nearshore DivingCancelledRenewalPublished value£15,000,000

Following the successful acquisition of UXO Survey data as described in Lot 5, target

investigation on identified potential targets is required to confirm status. This nearshore

scope is for water depths less than circa 10m where diving is the only practical solution to

identify targets due to water depth. Visual identification and a target inspection report is

required for each target. Additional information: National Grid UK Limited will conduct the procurement and enter into the framework

agreement with the successfully appointed suppliers for its own benefit and for the benefit

of the entities identified below.

National Grid UK Limited or any of the following entities shall be entitled to call off from the

framework agreement and enter into contracts resulting from the call off:

  1. Any parent undertakings or subsidiary undertakings (each term as defined in section 1162

Companies Act 2006 except that references in that section to "majority" shall be replaced

by reference to "25% or more") of National Grid UK Limited and any subsidiary undertakings

of any such parent undertakings at the time of the call off including without limitation:

a) National Grid Electricity Transmission Plc

b) National Grid LionLink Limited

c) National Grid Nautilus Limited

Page 23 to 37

d) National Grid Continental Limited

e) National Grid Interconnector Holdings Limited

f) National Grid Interconnectors Limited

g) National Grid North Sea Link Limitedh) National Grid Viking Link Limited

i) National Grid IFA 2 Limited

j) National Grid NSN Link Limited

  1. Any entity that is acting as a project partner with any National Grid call off partner

(identified in paragraph 1 above) and which calls off jointly with any such National Grid entity

including, without limitation,:

a) Scottish Hydro Electric Transmission Plc

b) TenneT TSO B.V.

c) TenneT TSO GmbH

d) TenneT Offshore GmbH

e) Elia Asset NV/SA

f) Energinet Eltransmission A/S

g) Statnett SF

h) Transmission system operators and other developers and/or operators of HVDC projects;

and/or

  1. Any special purpose vehicle, incorporated joint venture or contractual joint venture,

between any of the parties identified in paragraphs 1 and 2 above.

It should be noted that, whilst National Grid Interconnector Holdings Limited and any of its

subsidiaries whether current or future, which hold an interconnector licence, and National

Grid Interconnectors Limited, are included within the scope of the Marine Survey Framework

agreement, and therefore entitled to call off under it, these entities are not subject to the

Utilities Contracts Regulations 2016 or any other relevant procurement regime. These

entities' participation in this procurement process and/or the framework agreement does

Page 24 to 37

not cause them to be subject to those rules in whole or in part.

Delivery listed: Belgium (BE), Germany (DE), Denmark (DK), Spain (ES), France (FR), Ireland (IE), Iceland (IS), Netherlands (NL), Norway (NO), Sweden (SE), London
Extensions: 2 plus yearsVariant bids: not allowed
Lot #7UXO Target Investigation: Offshore ROVCancelledRenewalceiling above

Following the successful acquisition of UXO Survey data as described in Lot 5, target

investigation on identified potential targets is required to confirm status. This nearshore

scope is for water depths greater than circa 10m where an ROV solution is possible to

identify targets due to sufficient water depth. Visual identification and an inspection report is

required for each target. Additional information: National Grid UK Limited will conduct the procurement and enter into the framework

agreement with the successfully appointed suppliers for its own benefit and for the benefit

of the entities identified below.

National Grid UK Limited or any of the following entities shall be entitled to call off from the

framework agreement and enter into contracts resulting from the call off:

  1. Any parent undertakings or subsidiary undertakings (each term as defined in section 1162

Companies Act 2006 except that references in that section to "majority" shall be replaced

by reference to "25% or more") of National Grid UK Limited and any subsidiary undertakings

of any such parent undertakings at the time of the call off including without limitation:

Page 26 to 37

a) National Grid Electricity Transmission Plc

b) National Grid LionLink Limited

c) National Grid Nautilus Limited

d) National Grid Continental Limited

e) National Grid Interconnector Holdings Limited

f) National Grid Interconnectors Limited

g) National Grid North Sea Link Limitedh) National Grid Viking Link Limited

i) National Grid IFA 2 Limited

j) National Grid NSN Link Limited

  1. Any entity that is acting as a project partner with any National Grid call off partner

(identified in paragraph 1 above) and which calls off jointly with any such National Grid entity

including, without limitation,:

a) Scottish Hydro Electric Transmission Plc

b) TenneT TSO B.V.

c) TenneT TSO GmbH

d) TenneT Offshore GmbH

e) Elia Asset NV/SA

f) Energinet Eltransmission A/S

g) Statnett SF

h) Transmission system operators and other developers and/or operators of HVDC projects;

and/or

  1. Any special purpose vehicle, incorporated joint venture or contractual joint venture,

between any of the parties identified in paragraphs 1 and 2 above.

Page 27 to 37

It should be noted that, whilst National Grid Interconnector Holdings Limited and any of its

subsidiaries whether current or future, which hold an interconnector licence, and National

Grid Interconnectors Limited, are included within the scope of the Marine Survey Framework

agreement, and therefore entitled to call off under it, these entities are not subject to the

Utilities Contracts Regulations 2016 or any other relevant procurement regime. These

entities' participation in this procurement process and/or the framework agreement does

not cause them to be subject to those rules in whole or in part.

Delivery listed: Belgium (BE), Germany (DE), Denmark (DK), Spain (ES), France (FR), Ireland (IE), Iceland (IS), Netherlands (NL), Norway (NO), Sweden (SE), London
Extensions: 2 plus yearsVariant bids: not allowed
Lot #8UXO Clearance/DetonationCancelledRenewalceiling above

Following the confirmed identification of UXO from Lot 5-7, it is requested that a solution is

presented to safely neutralise the ordnance using best industry practice to allow a clearance

certificate to be produced. Techniques may include detonation, low-order detonation,

Page 28 to 37

removal, or other innovative solutions to safely remove the threat of the confirmed

ordnance. The use of bubble curtains and other environmental mitigations may be required

dependent on location and size of ordnance. Additional information: National Grid UK Limited will conduct the procurement and enter into the framework

agreement with the successfully appointed suppliers for its own benefit and for the benefit

of the entities identified below.

National Grid UK Limited or any of the following entities shall be entitled to call off from the

Page 29 to 37

framework agreement and enter into contracts resulting from the call off:

  1. Any parent undertakings or subsidiary undertakings (each term as defined in section 1162

Companies Act 2006 except that references in that section to "majority" shall be replaced

by reference to "25% or more") of National Grid UK Limited and any subsidiary undertakings

of any such parent undertakings at the time of the call off including without limitation:

a) National Grid Electricity Transmission Plc

b) National Grid LionLink Limited

c) National Grid Nautilus Limited

d) National Grid Continental Limited

e) National Grid Interconnector Holdings Limited

f) National Grid Interconnectors Limited

g) National Grid North Sea Link Limitedh) National Grid Viking Link Limited

i) National Grid IFA 2 Limited

j) National Grid NSN Link Limited

  1. Any entity that is acting as a project partner with any National Grid call off partner

(identified in paragraph 1 above) and which calls off jointly with any such National Grid entity

including, without limitation,:

a) Scottish Hydro Electric Transmission Plc

b) TenneT TSO B.V.

c) TenneT TSO GmbH

d) TenneT Offshore GmbH

e) Elia Asset NV/SA

f) Energinet Eltransmission A/S

g) Statnett SF

Page 30 to 37

h) Transmission system operators and other developers and/or operators of HVDC projects;

and/or

  1. Any special purpose vehicle, incorporated joint venture or contractual joint venture,

between any of the parties identified in paragraphs 1 and 2 above.

It should be noted that, whilst National Grid Interconnector Holdings Limited and any of its

subsidiaries whether current or future, which hold an interconnector licence, and National

Grid Interconnectors Limited, are included within the scope of the Marine Survey Framework

agreement, and therefore entitled to call off under it, these entities are not subject to the

Utilities Contracts Regulations 2016 or any other relevant procurement regime. These

entities' participation in this procurement process and/or the framework agreement does

not cause them to be subject to those rules in whole or in part.

Delivery listed: Belgium (BE), Germany (DE), Denmark (DK), Spain (ES), France (FR), Ireland (IE), Iceland (IS), Netherlands (NL), Norway (NO), Sweden (SE), London
Extensions: 2 plus yearsVariant bids: not allowed
Lot #9Low Carbon Geophysical / Small Maintenance ProjectsCancelledRenewalPublished value£35,000,000

A non-intrusive survey to provide an initial assessment of potential routes and assessment of

the continued physical security of in-service subsea assets. It is expected that this will

generally utilise Multi-Beam Echo Sounders and backscatter, as well as Side Scan Sonar and

magnetometer for some projects. This work includes data collection from the intertidal area

to offshore and involves a comparison of data from previous surveys. Autonomous platforms

to reduce the carbon footprint of the operations would be considered for this work and other

novel approaches aimed at reducing the carbon footprint of the projects are desirable. Additional information: National Grid UK Limited will conduct the procurement and enter into the framework

agreement with the successfully appointed suppliers for its own benefit and for the benefit

of the entities identified below.

National Grid UK Limited or any of the following entities shall be entitled to call off from the

framework agreement and enter into contracts resulting from the call off:

  1. Any parent undertakings or subsidiary undertakings (each term as defined in section 1162

Companies Act 2006 except that references in that section to "majority" shall be replaced

by reference to "25% or more") of National Grid UK Limited and any subsidiary undertakings

of any such parent undertakings at the time of the call off including without limitation:

a) National Grid Electricity Transmission Plc

b) National Grid LionLink Limited

c) National Grid Nautilus Limited

d) National Grid Continental Limited

e) National Grid Interconnector Holdings Limited

f) National Grid Interconnectors Limited

g) National Grid North Sea Link Limitedh) National Grid Viking Link Limited

i) National Grid IFA 2 Limited

j) National Grid NSN Link Limited

  1. Any entity that is acting as a project partner with any National Grid call off partner

(identified in paragraph 1 above) and which calls off jointly with any such National Grid entity

including, without limitation,:

a) Scottish Hydro Electric Transmission Plc

b) TenneT TSO B.V.

c) TenneT TSO GmbH

d) TenneT Offshore GmbH

Page 33 to 37

e) Elia Asset NV/SA

f) Energinet Eltransmission A/S

g) Statnett SF

h) Transmission system operators and other developers and/or operators of HVDC projects;

and/or

  1. Any special purpose vehicle, incorporated joint venture or contractual joint venture,

between any of the parties identified in paragraphs 1 and 2 above.

It should be noted that, whilst National Grid Interconnector Holdings Limited and any of its

subsidiaries whether current or future, which hold an interconnector licence, and National

Grid Interconnectors Limited, are included within the scope of the Marine Survey Framework

agreement, and therefore entitled to call off under it, these entities are not subject to the

Utilities Contracts Regulations 2016 or any other relevant procurement regime. These

entities' participation in this procurement process and/or the framework agreement does

not cause them to be subject to those rules in whole or in part.

Delivery listed: Belgium (BE), Germany (DE), Denmark (DK), Spain (ES), France (FR), Ireland (IE), Iceland (IS), Netherlands (NL), Norway (NO), Sweden (SE), London
Extensions: 2 years plusVariant bids: not allowed

What it takes to win
i

How this buyer will score bids.

The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).

Evaluation split and conditions of participation as published; the tender pack may add more
How bids were scored
Lot distribution rule: National Grid reserves the right to collapse or combine lots post PQQ. Dependent on market response.
Legal form for consortia
No specific legal form is required in order to participate in the procurement stage. However, National Grid reserves the right to require successfully appointed suppliers to take a specific legal form and/or accept joint and several liability if constituted as a group of economic operators.
Successive reduction
Candidates will be reduced successively across stages
What this means for your bid
  • “Marine Survey Framework” is a framework: the contest is a place on its panel, not a single contract.

Procedure terms & legal framework

From the official record · publisher note attached
Procedure method
Negotiated procedure with prior call for competition
Legal basis
CELEX · 32014L0025 Utilities Contracts Regulations 2016 (Directive 2014/25/EU)
Procurement category
Services
Notice status
Awarded
Procurement threshold
Unspecified in notice
Regulatory regime
Standard
Commercial structure
Framework agreement
Who may use this agreement
Not stated in the notice; call-off rights may be limited to the establishing authority
Competition type
Competitive procedure
GPA / WTO covered
Unspecified in notice
Recurring procurement
No (one-off requirement)
First published
10 Jan 2024, 11:18 GMT
Last source update
22 Sept 2025, 10:45 BST
FTS notice number
2025/S 000-058388
Classification (CPV)
Marine survey services
Delivery area
Belgium (BE)Germany (DE)Denmark (DK)Spain (ES)France (FR)Ireland (IE)Iceland (IS)Netherlands (NL)
+3 moreNorway (NO)Sweden (SE)UK
Official registry OCID
ocds-h6vhtk-042bef Find a Tender
Contract terms
Electronic trading
e-invoicing allowed · electronic ordering · electronic payment
Performance terms

Call-off contracts may require a requirement for partnership working.

Publisher note: Interested parties should note that National Grid is using the Ariba portal, details in Section I.3 and 11.1.4. of this notice. All documentation will be made available through this portal. All communications by interested parties must be made to the contacts in Section 11.1.4 . Once interested parties have been invited to the Ariba Event, National Grid will then only communicate through the portal. Communications sent by alternative means and/or to any other person will be ignored. Please note that a "request to participate" for the purposes of section IV.2.2 of this notice is by completion and return of the Pre-Qualification Questionnaire (PQQ), which is available through the Ariba portal, by the stated deadline. Interested parties should note that National Grid reserves the right to cancel or vary this procurement process at any stage. National Grid may also change the basis, procedures and/or timescales set out or referred to within the procurement documents. National Grid will not be liable for any costs or expenses whatsoever incurred by interested parties in participating in this procurement process.

How it was run

Official notice
Run through: SAP Ariba · Who buys & how to bid on SAP Ariba
Supplier login requiredLanguage: EN
Access & registration note: Free buyer-specific invitations
Appointment period ends
13 Feb 2024, 11:00 GMT
Submission channel
{"electronicSubmission","written"}
Accepted languages
en
Detailed submission instructions & authority contactsFrom official release

Timeline

13 Feb 2024 → 22 Sept 2025 · 2 dates
  1. Admission / appointment period endsperiod end, not a bid countdown
    13 Feb 2024, 11:00 GMT
  2. Notice published394 days ago
    22 Sept 2025, 10:45 BST

Notice history

3 events · 5 releases on Find a Tender · since 26 Mar 2024
  1. Buyer details updated
    26 Mar 2024, 15:57 GMT
  2. Status changed to complete
    1 Sept 2025, 21:15 BST
  3. Buyer details updated
    1 Sept 2025, 21:15 BST
Published amendments (3 · 0 deadline changes)
WhenWhatBeforeAfterShift
—TextII.2.14II.2.14 Additional information National Grid UK Limited will conduct the procurement and enter into the framework agreement with the successfully appointed suppliers for its own benefit and for the benefit of the entities identified below. National Grid UK Limited or any of the following entities shall be entitled to call off from the framework agreement and enter into contracts resulting from th…II.2.14 Additional information National Grid UK Limited will conduct the procurement and enter into the framework agreement with the successfully appointed suppliers for its own benefit and for the benefit of the entities identified below. National Grid UK Limited or any of the following entities shall be entitled to call off from the framework agreement and enter into contracts resulting from th…
—TextII.2.14II.2.14 Additional information National Grid UK Limited will conduct the procurement and enter into the framework agreement with the successfully appointed suppliers for its own benefit and for the benefit of the entities identified below. National Grid UK Limited or any of the following entities shall be entitled to call off from the framework agreement and enter into contracts resulting from the…II.2.14 Additional information National Grid UK Limited will conduct the procurement and enter into the framework agreement with the successfully appointed suppliers for its own benefit and for the benefit of the entities identified below. National Grid UK Limited or any of the following entities shall be entitled to call off from the framework agreement and enter into contracts resulting from the…
—TextV.2—Section V. Award of contract V.2.1 Date of conclusion of all contracts below: 16 June 2025 A contract/ lots is awarded: Yes V.2.2 Information about tenders Number of tenders received: 48 The contract has been awarded to a group of economic operators: No V.2.3 Name and address of the contractor ABCO Divers Limited Lisburn Country United Kingdom NUTS code • UK - United Kingdom Com…

3 amendments published without a description.

Routine re-releases (5)
  • 2024-02: 1 release · 14 Feb 2024
  • 2024-01: 1 release · 10 Jan 2024

Commercial outcome & contract awards

Published awards, contracts and bid statistics, not a forecast
Suppliers appointed 19admitted to the panel
Contracts signed 19latest 16 Jun 2025

19 suppliers are admitted to this framework without individual award values or dates; the JSON mirror lists them.

Contracts

  • Contract 052973-2025-1

    Signed
    16 Jun 2025
    Value
    —
    Status
    active
  • Contract 052973-2025-10

    Signed
    16 Jun 2025
    Value
    —
    Status
    active
  • Contract 052973-2025-11

    Signed
    16 Jun 2025
    Value
    —
    Status
    active
  • Contract 052973-2025-12

    Signed
    16 Jun 2025
    Value
    —
    Status
    active
  • Contract 052973-2025-13

    Signed
    16 Jun 2025
    Value
    —
    Status
    active
  • Contract 052973-2025-14

    Signed
    16 Jun 2025
    Value
    —
    Status
    active
  • Contract 052973-2025-15

    Signed
    16 Jun 2025
    Value
    —
    Status
    active
  • Contract 052973-2025-16

    Signed
    16 Jun 2025
    Value
    —
    Status
    active
  • Contract 052973-2025-17

    Signed
    16 Jun 2025
    Value
    —
    Status
    active
  • Contract 052973-2025-18

    Signed
    16 Jun 2025
    Value
    —
    Status
    active
  • Contract 052973-2025-19

    Signed
    16 Jun 2025
    Value
    —
    Status
    active
  • Contract 052973-2025-2

    Signed
    16 Jun 2025
    Value
    —
    Status
    active
  • Contract 052973-2025-3

    Signed
    16 Jun 2025
    Value
    —
    Status
    active
  • Contract 052973-2025-4

    Signed
    16 Jun 2025
    Value
    —
    Status
    active
  • Contract 052973-2025-5

    Signed
    16 Jun 2025
    Value
    —
    Status
    active
  • Contract 052973-2025-6

    Signed
    16 Jun 2025
    Value
    —
    Status
    active
  • Contract 052973-2025-8

    Signed
    16 Jun 2025
    Value
    —
    Status
    active
  • Contract 052973-2025-9

    Signed
    16 Jun 2025
    Value
    —
    Status
    active
  • Contract 052973-2025-7

    Signed
    1 Jun 2025
    Value
    —
    Status
    active

Contracting authority & participating public bodies

2 public bodies on the notice

NATIONAL GRID UK LIMITED

Contracting authorityPublic bodyElectricity GB-COH: 04508773 · GB-COH: 4508773 1-3 Strand, London, London, WC2N5EHContact name, email Published organisation website ↗

Dispute resolution & review bodies

  • High CourtReview body London

Official documents & specifications (1)

Official links; attachments are not copied

Tender pack and attachments

  • Technical selection criteriatenderTechnical selection criteria