System operational · UK tenders
planned
ocds-h6vhtk-06ebf4 · planning

Strategic Enterprise Modelling Capability Solution

NATIONAL ENERGY SYSTEM OPERATOR LIMITED

Estimated Value

Not specified

Deadline

Not specified

Published

25 August 2026

Type

Not specified

South EastGB

Key points

  • Understand the maturity of currently available market solutions.
  • Inform the future procurement strategy and requirements.
  • Explore implementation, transition and operating model options.
  • Understand commercial models, licensing approaches and contractual considerations.
  • Assess supplier capability, experience and innovation within this market.
  • Identify potential risks, dependencies and transition requirements associated with replacement of existing services.   The solution is expected to support outcomes including but not limited to:
  • Achieve trust and transparency in NESO's advice to stakeholders, customers/industry participants regulators through improved quality of modelling outputs and ability to trace from source to recommendation/ decisions.
  • Achieve measurable at pace decision making and optimum developer experience through seamless, intuitive and self-serve capabilities.
  • Enhanced interoperability between NESO's data, analytical and operational platforms.
  • Achieve standardization, common representation and rigour in NESO's energy modelling and analytics by connecting data, context, calculation and scenarios and demonstrable adherence to Data standards, analytical standards and technical standards aligned to NESO's operational requirements.
  • Establish modern best-in-class technical capability enabling innovation opportunities and exploit AI
  • Provision of secure, resilient and highly available services At this stage the contract term is anticipated to be an initial term of 5 years with extension options up to 2 years in 12-month increments however this may change based on the discussions held as part of the Pre Market Engagement Activity to ensure NESO can meet its key and strategic objectives.

Key dates

Duration
5 years

AI AnalysisMembers

Requirements, key tasks and tips for reading this tender — included with Tendarix membership.

Create free account

£4.99/month after a 7-day free trial. Cancel anytime before it ends and you pay nothing.

Likely incumbents

Suppliers who won similar work from this buyer in the last 5 years.

5 found
  1. 1

    EFFICIO LIMITED

    3 contracts wonlatest 9 Feb 2026ends 23 Mar 2028CH 04010379

    £8m

    total awarded

  2. 2

    DLA PIPER UK LLP

    2 contracts wonlatest 11 Aug 2026ends 26 Aug 2029CH OC307847

    £17m

    total awarded

  3. 3

    TLT LLP

    2 contracts wonlatest 21 Jul 2026ends 31 Jan 2029CH OC308658

    £11m

    total awarded

  4. 4

    GOWLING WLG (UK) LLP

    2 contracts wonlatest 23 Apr 2026ends 8 May 2029CH OC304378

    £18m

    total awarded

  5. 5

    Hewlett Packard Ltd t/a Hewlett Packard Enterprise

    1 contract wonlatest 12 Oct 2026ends 31 Dec 2027CH 00690597

    £2m

    total awarded

EFFICIO LIMITED is the most likely incumbent based on recency and category match. To win, bidders typically need a clearly differentiated proposition or a price advantage.

Search for tenders
SponsoredEst. 2010
Gladstone & Co AccountantsTax advisers · East Ham, London

Before you bid, buyers check

two years of filed accountsyour financial standingturnover vs contract valueyour Companies House recordcash flow for 30-day termscredit scores and ratios

Annual accountsCash-flow forecastsManagement accountsCorporation taxVAT & MTDPayroll & RTIBookkeepingCompany formationSelf-assessmentVirtual FDHMRC enquiriesAuto-enrolmentProperty & landlord taxCharity SORP accounts
Get bid-ready — free 30-min call

Actions

Start free trialto open notice

Create an account and start a 7-day free trial to open the buyer’s own notice and tender documents, plus fit scoring and the Bid Writer. Then £4.99/month — cancel anytime.

Open Bid Writer
Built by · Digital studioEst. 2022
Unique
Evolution®

Independent software, web & cloud studio. We design, build and grow digital products that quietly outlast their category.

Web DesignSoftware DevelopmentSEO ServicesPromotion
Visit Unique Evolution

How to Apply

Step-by-step submission guide

Submission Portal

Find a Tender

Visit
1

Open the original notice

Click the button below to view the full notice on Find a Tender Service (FTS)

2

Check the procedure type

The "Procedure" section tells you if it's Open (one stage) or Restricted (SQ then ITT). This changes how you apply

3

Access the eSourcing portal

FTS notices link to the buyer's eSourcing platform — register there to access documents

4

Complete the Selection Questionnaire

Higher-value contracts often require an SQ first — this pre-qualifies you before the full bid stage

5

Submit electronically

Upload your completed response through the eSourcing platform before the closing date and time

FTS contracts are above UK procurement thresholds. Late submissions are strictly rejected — submit at least 24 hours before the deadline to avoid portal issues.

Buyer Profile

NATIONAL ENERGY SYSTEM OPERATOR LIMITED
Typepublic body
RegionUKJ11
Total tenders46
Total spend£389,354,855
View buyer profile

Key Dates

Published

25 August 2026

Submission deadline

Not specified

Notice type

planning

Source

find a tender

Similar

Related Tenders