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PROCUREMENT OPPORTUNITY

Technical Consultancy Framework

NATIONAL ENERGY SYSTEM OPERATOR LIMITED · Tender notice on Find a Tender

Tender information last checkedLast checked 26 Sept 2026, 12:57.

Opportunity overview

Technical Consultancy Framework shall be a multi-lot framework. Works shall be awarded in line Framework Call-Off Procedure. The framework shall consist of 5 lots covering numerous disciplines: - Engineering & Technical Analysis, - Modelling, Simulation & Analytics, - Strategic Technical Consultancy, - Technical Assurance, Safety & Quality, - Market Modelling Design & Economics. Once established works under the framework shall be awarded via a combination of competitive allocation and direct allocation.

Classification

  • CPV71621000 — Technical analysis or consultancy services

Lots

  • Engineering & Technical Analysis£12.1m
  • Modelling, Simulation & Analytics£12.1m
  • Strategic Technical Consultancy£12.1m
  • Technical Assurance - Safety, Quality & Compliance£12.1m
  • Market Design & Economics & Regulation£12.1m

Documents and notices

Published notice details

Additional information from the published procurement release. Fields appear only when supplied by the source; check the original notice and tender documents before acting.

Scope, procedure and submissions

Id
ocds-h6vhtk-052235
Status
active
Procurement Method
selective
Procurement Method Details
Competitive flexible procedure
Main Procurement Category
services
Above Threshold
Yes
How to submit
The tenders shall be submitted via Ivalua. Register to Ivalua using the below link and please ensure you are registered against the 71621000 commodity code: https://www.neso.energy/suppliers For queries regarding access please use: support-neso@ivalua.com
Expression Of Interest Deadline
26 Aug 2026, 23:59

Legal basis

Id
2023/54
Scheme
UKPGA

Procedure

Features
Two stage process of PSQ and ITT into Contract Award. Requests to participate shall be provided access to the PSQ subject to agreement to NESO specific Non-Disclosure Agreement and Non-Collusion Agreement.

Special regime

utilities

Techniques

Has Framework Agreement
Yes

Framework Agreement

Method
withAndWithoutReopeningCompetition
Type
closed
Description
Prices shall be evaluated in line with the commercial criteria at ITT stage. The framework shall create framework rate cards to be used at Call-Off.

Submission terms

Electronic Submission Policy
allowed

Languages

en

Expected award period

Ends
11 Dec 2026, 23:59

Lots and requirements

Entry 1
Id
1
Title
Engineering & Technical Analysis
Description
Provision advice and consulting services across various energy types in relation to engineering and technical analysis advice relevant to NESO specific requirements. Types of services required in this lot includes but is not limited to: • Asset assessment, Asset lifecycle modelling, CAPEX optimisation / investment planning & Criticality frameworks and maintenance strategy • Root-cause analysis • Risk analysis • Unit cost analysis and data • Engineering technical support & Network resilience • Problem resolution • Power system engineering analysis • Gas network hydraulic analysis • Energy Transition (Multi Energy & Net Zero)
Status
active
Has Renewal
Yes

Value

Including VAT
14,520,000
Amount
12,100,000
Currency
GBP

Award criteria

Criteria

Criterion 1
Type
cost
Name
Commercial
Description
The commercial criteria shall be evaluated in line with the ITT Instructions against rate cards and rebates/discounts at 30% total. Terms and conditions alignment shall also be assessed but not scored.

Numbers

Entry 1
Number
30
Weight
percentageExact
Criterion 2
Type
quality
Name
Technical
Description
The Technical criteria shall be evaluated in line with the ITT Instructions at a total percentage of 60%. The Technical assessment shall be split into two sections: General Technical Assessment: 40% Lot specific Assessment: 60%

Numbers

Entry 1
Number
60
Weight
percentageExact
Criterion 3
Type
quality
Name
Social Value
Description
The Social Value criteria shall be evaluated in line with the ITT Instructions at a total percentage of 10%. Further guidance on the social value model can be found at: https://www.gov.uk/government/publications/social-value-act-information-and-resources

Numbers

Entry 1
Number
10
Weight
percentageExact

Selection criteria

Criteria

Criterion 1
Description
The PSQ shall be evaluated in line with the PSQ Instructions. The PSQ evaluation shall be assed in two stages: 1. Compliance to mandatory NESO specific questions (Pass/Fail) 2. Technical assessment scoring criteria of 100%. Shortlisted suppliers shall be invited to tender stage.
For Reduction
Yes

Suitability

Sme
Yes

Contract period

Starts
4 Jan 2027, 00:00
Ends
3 Jan 2031, 23:59
Max Extent Date
3 Jan 2035, 23:59

Renewal

Description
1 + 1 + 1 + 1 extension provision
Entry 2
Id
2
Title
Modelling, Simulation & Analytics
Description
Provision advice and consulting services in relation to the strategy formation of Modelling, Simulation & Analytics including, discovery, envisage and design stages of advice relevant to NESO specific requirements. Consultancy and advice in this area may include, but not limited to, consultancy relating to the following topics: • Power system modelling • Scenario analysis • Network & demand forecasting & planning support • Digital simulations • Nodal Plexos (or equivalent) modelling • Integrated energy system planning • Flexibility & Future System Modelling • Climate and Resilience analysis and modelling • Energy transition analysis and modelling • Decarbonisation modelling Please note; Lot 2 does not include the procurement of data models or the provision of software and services packages. Projects which require end to end solutions from strategy, discovery design & implementation will be procured via alternative routes to market.
Status
active
Has Renewal
Yes

Value

Including VAT
14,520,000
Amount
12,100,000
Currency
GBP

Award criteria

Criteria

Criterion 1
Type
cost
Name
Commercial
Description
The commercial criteria shall be evaluated in line with the ITT Instructions against rate cards and rebates/discounts at 30% total. Terms and conditions alignment shall also be assessed but not scored.

Numbers

Entry 1
Number
30
Weight
percentageExact
Criterion 2
Type
quality
Name
Technical
Description
The Technical criteria shall be evaluated in line with the ITT Instructions at a total percentage of 60%. The Technical assessment shall be split into two sections: General Technical Assessment: 40% Lot specific Assessment: 60%

Numbers

Entry 1
Number
60
Weight
percentageExact
Criterion 3
Type
quality
Name
Social Value
Description
The Social Value criteria shall be evaluated in line with the ITT Instructions at a total percentage of 10%. Further guidance on the social value model can be found at: https://www.gov.uk/government/publications/social-value-act-information-and-resources

Numbers

Entry 1
Number
10
Weight
percentageExact

Selection criteria

Criteria

Criterion 1
Description
The PSQ shall be evaluated in line with the PSQ Instructions. The PSQ evaluation shall be assed in two stages: 1. Compliance to mandatory NESO specific questions (Pass/Fail) 2. Technical assessment scoring criteria of 100%. Shortlisted suppliers shall be invited to tender stage.
For Reduction
Yes

Suitability

Sme
Yes

Contract period

Starts
4 Jan 2027, 00:00
Ends
3 Jan 2031, 23:59
Max Extent Date
3 Jan 2035, 23:59

Renewal

Description
1 + 1 + 1 + 1 extension provision
Entry 3
Id
3
Title
Strategic Technical Consultancy
Description
Provision advice and consulting services in relation to Strategic Technical Consultancy advice relevant to NESO specific requirements. Types of services required in this lot includes but is not limited to: • Whole-system strategy • Market analysis • Technical advisory • Infrastructure and Operational optimisation • Net Zero & Energy Transition Strategy • Resilience strategy (National energy resilience planning & Security of supply strategy)
Status
active
Has Renewal
Yes

Value

Including VAT
14,520,000
Amount
12,100,000
Currency
GBP

Award criteria

Criteria

Criterion 1
Type
cost
Name
Commercial
Description
The commercial criteria shall be evaluated in line with the ITT Instructions against rate cards and rebates/discounts at 30% total. Terms and conditions alignment shall also be assessed but not scored.

Numbers

Entry 1
Number
30
Weight
percentageExact
Criterion 2
Type
quality
Name
Technical
Description
The Technical criteria shall be evaluated in line with the ITT Instructions at a total percentage of 60%. The Technical assessment shall be split into two sections: General Technical Assessment: 40% Lot specific Assessment: 60%

Numbers

Entry 1
Number
60
Weight
percentageExact
Criterion 3
Type
quality
Name
Social Value
Description
The Social Value criteria shall be evaluated in line with the ITT Instructions at a total percentage of 10%. Further guidance on the social value model can be found at: https://www.gov.uk/government/publications/social-value-act-information-and-resources

Numbers

Entry 1
Number
10
Weight
percentageExact

Selection criteria

Criteria

Criterion 1
Description
The PSQ shall be evaluated in line with the PSQ Instructions. The PSQ evaluation shall be assed in two stages: 1. Compliance to mandatory NESO specific questions (Pass/Fail) 2. Technical assessment scoring criteria of 100%. Shortlisted suppliers shall be invited to tender stage.
For Reduction
Yes

Suitability

Sme
Yes

Contract period

Starts
4 Jan 2027, 00:00
Ends
3 Jan 2031, 23:59
Max Extent Date
3 Jan 2035, 23:59

Renewal

Description
1 + 1 + 1 + 1 extension provision
Entry 4
Id
4
Title
Technical Assurance - Safety, Quality & Compliance
Description
Provision advice and consulting services in relation to Environmental, Safety & Compliance advice relevant to NESO specific requirements. Types of services required in this lot includes but is not limited to: • Safety engineering • Quality management • Risk assessments and risk assessment methodologies • Technical policy review & drafting • Stakeholder & Policy Interface and alignment • Advisory Climate & Sustainability • Socio-economic Impact & Consumers analysis
Status
active
Has Renewal
Yes

Value

Including VAT
14,520,000
Amount
12,100,000
Currency
GBP

Award criteria

Criteria

Criterion 1
Type
cost
Name
Commercial
Description
The commercial criteria shall be evaluated in line with the ITT Instructions against rate cards and rebates/discounts at 30% total. Terms and conditions alignment shall also be assessed but not scored.

Numbers

Entry 1
Number
30
Weight
percentageExact
Criterion 2
Type
quality
Name
Technical
Description
The Technical criteria shall be evaluated in line with the ITT Instructions at a total percentage of 60%. The Technical assessment shall be split into two sections: General Technical Assessment: 40% Lot specific Assessment: 60%

Numbers

Entry 1
Number
60
Weight
percentageExact
Criterion 3
Type
quality
Name
Social Value
Description
The Social Value criteria shall be evaluated in line with the ITT Instructions at a total percentage of 10%. Further guidance on the social value model can be found at: https://www.gov.uk/government/publications/social-value-act-information-and-resources

Numbers

Entry 1
Number
10
Weight
percentageExact

Selection criteria

Criteria

Criterion 1
Description
The PSQ shall be evaluated in line with the PSQ Instructions. The PSQ evaluation shall be assed in two stages: 1. Compliance to mandatory NESO specific questions (Pass/Fail) 2. Technical assessment scoring criteria of 100%. Shortlisted suppliers shall be invited to tender stage.
For Reduction
Yes

Suitability

Sme
Yes

Contract period

Starts
4 Jan 2027, 00:00
Ends
3 Jan 2031, 23:59
Max Extent Date
3 Jan 2035, 23:59

Renewal

Description
1 + 1 + 1 + 1 extension provision
Entry 5
Id
5
Title
Market Design & Economics & Regulation
Description
Provision advice and consulting services in relation to Market Design & Economics & Regulation advice relevant to NESO specific requirements. Types of services required in this lot includes but is not limited to: • Investment Mechanisms • Market design including wholesale Balancing and ancillary markets • Economics regulatory design • Cost of Capital Analysis • Microeconomics & Econometrics • Auction design • Cost-benefit analysis • Reliability mechanisms
Status
active
Has Renewal
Yes

Value

Including VAT
14,520,000
Amount
12,100,000
Currency
GBP

Award criteria

Criteria

Criterion 1
Type
cost
Name
Commercial
Description
The commercial criteria shall be evaluated in line with the ITT Instructions against rate cards and rebates/discounts at 30% total. Terms and conditions alignment shall also be assessed but not scored.

Numbers

Entry 1
Number
30
Weight
percentageExact
Criterion 2
Type
quality
Name
Technical
Description
The Technical criteria shall be evaluated in line with the ITT Instructions at a total percentage of 60%. The Technical assessment shall be split into two sections: General Technical Assessment: 40% Lot specific Assessment: 60%

Numbers

Entry 1
Number
60
Weight
percentageExact
Criterion 3
Type
quality
Name
Social Value
Description
The Social Value criteria shall be evaluated in line with the ITT Instructions at a total percentage of 10%. Further guidance on the social value model can be found at: https://www.gov.uk/government/publications/social-value-act-information-and-resources

Numbers

Entry 1
Number
10
Weight
percentageExact

Selection criteria

Criteria

Criterion 1
Description
The PSQ shall be evaluated in line with the PSQ Instructions. The PSQ evaluation shall be assed in two stages: 1. Compliance to mandatory NESO specific questions (Pass/Fail) 2. Technical assessment scoring criteria of 100%. Shortlisted suppliers shall be invited to tender stage.
For Reduction
Yes

Suitability

Sme
Yes

Contract period

Starts
4 Jan 2027, 00:00
Ends
3 Jan 2031, 23:59
Max Extent Date
3 Jan 2035, 23:59

Renewal

Description
1 + 1 + 1 + 1 extension provision

Items and delivery

Item 1
Id
1
Related Lot
1

Additional Classifications

Entry 1
Scheme
CPV
Id
71621000
Description
Technical analysis or consultancy services

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom
Item 2
Id
2
Related Lot
2

Additional Classifications

Entry 1
Scheme
CPV
Id
71621000
Description
Technical analysis or consultancy services

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom
Item 3
Id
3
Related Lot
3

Additional Classifications

Entry 1
Scheme
CPV
Id
71621000
Description
Technical analysis or consultancy services

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom
Item 4
Id
4
Related Lot
4

Additional Classifications

Entry 1
Scheme
CPV
Id
71621000
Description
Technical analysis or consultancy services

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom
Item 5
Id
5
Related Lot
5

Additional Classifications

Entry 1
Scheme
CPV
Id
71621000
Description
Technical analysis or consultancy services

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom

Published documents

Entry 1
Id
conflictOfInterest
Document Type
conflictOfInterest
Description
Not published
Entry 2
Id
071979-2026
Document Type
tenderNotice
Notice Type
UK4
Description
Tender notice on Find a Tender
Published
30 Jul 2026, 09:10
Format
text/html

Buyer, suppliers and contacts

Organisation 1
Name
NATIONAL ENERGY SYSTEM OPERATOR LIMITED
Id
GB-COH-11014226

Identifier

Scheme
GB-COH
Id
11014226

Additional Identifiers

Entry 1
Scheme
GB-PPON
Id
PHQL-5234-MWWV

Address

Street Address
St Catherine's Lodge Bearwood Road
Locality
Wokingham
Postal Code
RG41 5BN
Country
GB
Country Name
United Kingdom
Region
UKJ11

Contact

Roles

buyer

Details

Classifications

Entry 1
Scheme
UK_CA_TYPE
Id
publicUndertaking
Description
Public undertaking

Recorded locations

  • Buyer location · Wokingham · UKJ11 · RG41 5BN · United Kingdom
  • Delivery location · UK · United Kingdom

Notice and amendment history

1 published notice version reviewed by ProcuraAxis.

1 VERSION
  1. 071979-2026Tender notice on Find a Tender ·