Planning

Technical Consultancy Services

  • NATIONAL ENERGY SYSTEM OPERATOR LIMITED

UK2: Preliminary market engagement notice - Procurement Act 2023 - view information about notice types

Notice identifier: 2025/S 000-082476

Procurement identifier (OCID): ocds-h6vhtk-052235 (view related notices)

Published 12 December 2025, 1:21pm



Scope

Description

The National Energy System Operator, NESO, is an independent, public corporation at the centre of the energy system taking a whole system view to create a world where everyone has access to reliable, clean and affordable energy.

NESO is conducting preliminary market engagement to help shape our upcoming procurement of Technical Consultancy. Your feedback will help to inform our scope, approach and the commercial strategy.

Commercial tool

Establishes a framework

Total value (estimated)

  • £31,500,000 excluding VAT
  • £37,800,000 including VAT

Above the relevant threshold

Contract dates (estimated)

  • 1 June 2026 to 31 May 2029
  • Possible extension to 31 May 2031
  • 5 years

Main procurement category

Services

CPV classifications

  • 71314300 - Energy-efficiency consultancy services
  • 71600000 - Technical testing, analysis and consultancy services
  • 73000000 - Research and development services and related consultancy services

Contract locations

  • UK - United Kingdom

Engagement

Engagement deadline

8 January 2026

Engagement process description

Objectives of the Engagement

1. Capture the expression of interest from technical consultancy providers who may wish to participate in the upcoming procurement

2. Obtain structured feedback on key aspects of the proposed procurement, including:

.Scope and lotting strategy

.Delivery models and ways of working

.Commercial models and procurement approach

Submitting your response would enable us to capture your expression of interest and help ensure the resulting framework is commercial viable, accessible and fit for purpose.

Response Instructions

All responses (including expression of interest) must be submitted via MS form link

https://forms.office.com/e/6SMsr6CgPh

by 8th January 2026, 12:00PM (BST).

Completion of this form:

. Registers your expression of interest

. Provides an opportunity to offer feedback

Engagement Method

All supplier are requested to respond exclusively through the MS form.

For any queries or clarifications, please reach out to NESO Procurement team via box.NESOIndirectsProcurement@neso.energy. Please note that we will not be providing any additional information on individual basis to ensure fairness and transparency.

Disclaimer

This is not a call for competition. Participation does not affect future tendering opportunities.


Contracting authority

NATIONAL ENERGY SYSTEM OPERATOR LIMITED

  • Companies House: 11014226
  • Public Procurement Organisation Number: PHQL-5234-MWWV

St Catherine's Lodge Bearwood Road

Wokingham

RG41 5BN

United Kingdom

Region: UKJ11 - Berkshire

Organisation type: Public undertaking (commercial organisation subject to public authority oversight)