NGET Call For Innovation - Innovative Solutions For Partial Discharge Monitoring On Substation Assets


F05: Contract notice – utilities

Notice reference: 2023/S 000-008871

Published 27 March 2023, 4:39pm

Section one: Contracting entity

one.1) Name and addresses


1 - 3 Strand




Krishna Chauhan




+44 7866154330


United Kingdom

NUTS code

UK - United Kingdom

Companies House


Internet address(es)

Main address


one.3) Communication

The procurement documents are available for unrestricted and full direct access, free of charge, at


Additional information can be obtained from the above-mentioned address

Tenders or requests to participate must be submitted electronically via


one.6) Main activity


Section two: Object

two.1) Scope of the procurement

two.1.1) Title

NGET Call For Innovation - Innovative Solutions For Partial Discharge Monitoring On Substation Assets

Reference number


two.1.2) Main CPV code

  • 71700000 - Monitoring and control services

two.1.3) Type of contract


two.1.4) Short description

The Call for Innovation (CFI) is an approach to the market to see what products and services are available in the industry with funding coming from Ofgem's Network Innovation Allowance.

A CFI is not a formal competitive tender process but is an approach to the market with a specific problem statement or topic of interest that National Grid would like to hear ideas about from the marketplace.

All information received will be used to consider whether we want to engage with a specific supplier or whether we believe a competitive tender approach is required. Essentially this CFI will inform or dictate our procurement strategy.

two.1.6) Information about lots

This contract is divided into lots: No

two.2) Description

two.2.2) Additional CPV code(s)

  • 65300000 - Electricity distribution and related services

two.2.3) Place of performance

NUTS codes
  • UK - United Kingdom

two.2.4) Description of the procurement

National Grid Electricity Transmission (NGET) currently carries out routine radio frequency interference (RFI) surveys using hand held survey technology and trailer bound equipment to monitor partial discharge (PD) activities in substations. The survey results are important for NGET to implement effective asset management.

However, due to the intermittent nature of PD, the surveys cannot capture all PD activities and thus can miss early signs of asset failures. The survey activities and the maintenance of the trailer fleet also incur overheads and carbon emission. NGET thus seeks more efficiency ways to monitor PD activities in substation.

The purpose of this CFI is to help NGET to identify:

• A solution for long-term PD monitoring that is suitable for HV transmission substation assets and involves minimum manual intervention

This CFI will inform NGET about current state-of-the-art of long-term PD monitoring and the approach of obtaining the required resources, products and services.

NGET is looking to explore what services could be developed and/or packaged to address the requirements with reference to geographical coverage, information about these services and companies able to provide them, and the interest from the supply base in working with National Grid.

The solution(s) must:

• Be able to provide the same or higher quality of PD monitoring results when compared with NGET's current methods

• Have the potential to provide long-term PD monitoring in HV transmission substations

• Have the potential to replace the current manual RFI survey which is based on hand held, portable equipment and trailer bound monitoring technology.

• Be non-intrusive and does not require an outage for installation, maintenance or repairment

• Be effective and efficient in PD monitoring with minimal manual intervention

• Be of an optimised design to ensure space efficiency while being maintainable

• Be able to last for at least 12 months in a HV substation environment uninterrupted

• Be able to interface via suitable means to substation systems, e.g., secure IP rated power connectors to LVAC systems

• Meet all relevant NG technical specifications

• Comply with all relevant industry and international standards

• Be clear on asset lifecycle and lifespan

• Have provision for an implementation/delivery plan or timescales

• Have provision for the cost for the contractor to deliver the project proposal / response to this call

The solution(s) should:

• Consider different delivery platforms to achieve minimal CAPEX and OPEX

• Have relevant product or service certification to operate within a substation environment or electricity network.

• Be redeployable

• Economical and time efficient service schedule(s).

• Minimal environmental impact - from the manufacture to operations.

• Require minimal civil works to install.

• Be able to monitor all areas of a High Voltage substation

• Be deployable and redeployable by National Grid Technicians

• Be configurable by National Grid technicians without recourse to supplier.

The solution(s) won't:

• Be a research project or concept (TRL 1 - 4)

two.2.5) Award criteria

Price is not the only award criterion and all criteria are stated only in the procurement documents

two.2.7) Duration of the contract, framework agreement or dynamic purchasing system

Duration in months


This contract is subject to renewal


two.2.10) Information about variants

Variants will be accepted: Yes

two.2.11) Information about options

Options: Yes

Description of options

NGET will have the option to extend the term of any agreement.

Section four. Procedure

four.1) Description

four.1.1) Type of procedure

Negotiated procedure with prior call for competition

four.1.8) Information about the Government Procurement Agreement (GPA)

The procurement is covered by the Government Procurement Agreement: No

four.2) Administrative information

four.2.2) Time limit for receipt of tenders or requests to participate


26 April 2023

Local time


four.2.4) Languages in which tenders or requests to participate may be submitted


four.2.6) Minimum time frame during which the tenderer must maintain the tender

Duration in months: 6 (from the date stated for receipt of tender)

Section six. Complementary information

six.1) Information about recurrence

This is a recurrent procurement: No

six.4) Procedures for review

six.4.1) Review body

National Grid Electricity Transmission Plc



United Kingdom