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PROCUREMENT OPPORTUNITY

SONI064 – DS3 System Services – Volume Capped – Gate 13

SONI Ltd · Tender notice on Find a Tender

Tender information last checkedLast checked 30 Sept 2026, 04:41.

Opportunity overview

Following review by the Regulatory Authorities of the TSOs’ Report on Ensuring a Secure, Reliable and Efficient Power System in July 2011 the TSOs were requested by the SEM Committee to put in place a programme of work to solve the challenges associated with increased levels of penetration of variable non-synchronous renewable generation.

Classification

  • CPV71314000 — Energy and related services

Lots

  • POR L1NI - Primary Operating Reserve€6.6m
  • RM3 L10NI - Ramping Margin 3 Hour€6.6m
  • RM8 L11NI - Ramping Margin 8 Hou€6.6m
  • FFR L12NI - Fast Frequency Response€6.6m
  • SOR L2NI - Secondary Operating Reserve€6.6m
  • TOR1 L3NI - Tertiary 1 Operating Reserve€6.6m
  • TOR2 L4NI - Tertiary 2 Operating Reserve€6.6m
  • RRD L5NI - Replacement Reserve (De-Synchronised)€6.6m
  • RRS L6NI - Replacement Reserve (Synchronised)€6.6m
  • SSRP L7NI - Steady State Reactive Powe€6.6m
  • SIR L8NI - Synchronous Inertial Respons€6.6m
  • RM1 L9NI - Ramping Margin 1 Hour€6.6m

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
SONI064
Status
active
Has Recurrence
Yes
Above Threshold
Yes
Procurement Method
open
Main Procurement Category
services
How to submit
www.mytenders.co.uk
Procurement Method Details
Open procedure

Covered By

GPA

Legal basis

Id
2023/54
Scheme
UKPGA

Lot Details

Maximum Lots Bid Per Supplier
11
Maximum Lots Awarded Per Supplier
11

Recurrence

Dates

Entry 1
Starts
1 Jan 2026, 23:59

Expected award period

Ends
25 Sept 2025, 23:59

Tender Period

Ends
23 Jul 2025, 12:00

Enquiry period

Ends
4 Jul 2025, 12:00

Special regime

utilities

Submission terms

Electronic Submission Policy
allowed

Languages

en

Lots and requirements

Entry 1
Id
1
Title
POR L1NI - Primary Operating Reserve
Status
active
Has Renewal
Yes
Description
Primary Operating Reserve or ‘POR’ has the meaning given to it in the grid code

Value

Amount
6,640,422
Currency
EUR
Including VAT
7,968,509

Renewal

Description
Option for TSO to extend the term of its Contract in respect of any or all of its applicable Lots in certain defined cases, at the discretion of the Contracting Entity. This option might apply where, for instance, there is a delay in completing the procurement for any subsequent phases envisaged under the DS3 Programme.

Suitability

Sme
Yes

Award criteria

Criteria

Criterion 1
Name
Technical Questionnaire
Type
quality
Description
Refer to RFP

Numbers

Entry 1
Number
1
Weight
order

Contract period

Ends
30 Apr 2026, 23:59
Starts
1 Oct 2025, 00:00
Max Extent Date
30 Jun 2026, 23:59
Entry 2
Id
2
Title
SOR L2NI - Secondary Operating Reserve
Status
active
Has Renewal
Yes
Description
Secondary Operating reserve or ‘SOR’ has the meaning given to it in the grid code

Value

Amount
6,640,422
Currency
EUR
Including VAT
7,968,506

Renewal

Description
Option for TSO to extend the term of its Contract in respect of any or all of its applicable Lots in certain defined cases, at the discretion of the Contracting Entity. This option might apply where, for instance, there is a delay in completing the procurement for any subsequent phases envisaged under the DS3 Programme.

Suitability

Sme
Yes

Award criteria

Criteria

Criterion 1
Name
Technical Questionnaire
Type
quality
Description
Refer to RFP

Numbers

Entry 1
Number
1
Weight
order

Contract period

Ends
30 Apr 2026, 23:59
Starts
1 Oct 2025, 00:00
Max Extent Date
30 Jun 2026, 23:59
Entry 3
Id
3
Title
TOR1 L3NI - Tertiary 1 Operating Reserve
Status
active
Has Renewal
Yes
Description
Tertiary 1 operating reserve or ‘TOR1’ has the meaning given to it in the grid code.

Value

Amount
6,640,422
Currency
EUR
Including VAT
7,968,506

Renewal

Description
Option for TSO to extend the term of its Contract in respect of any or all of its applicable Lots in certain defined cases, at the discretion of the Contracting Entity. This option might apply where, for instance, there is a delay in completing the procurement for any subsequent phases envisaged under the DS3 Programme.

Suitability

Sme
Yes

Award criteria

Criteria

Criterion 1
Name
Technical Questionnaire
Type
quality
Description
Refer to RFP

Numbers

Entry 1
Number
1
Weight
order

Contract period

Ends
30 Apr 2026, 23:59
Starts
1 Oct 2025, 00:00
Max Extent Date
30 Jun 2026, 23:59
Entry 4
Id
4
Title
TOR2 L4NI - Tertiary 2 Operating Reserve
Status
active
Has Renewal
Yes
Description
Tertiary 2 operating reserve or ‘TOR2’ has the meaning given to it in the grid code

Value

Amount
6,640,422
Currency
EUR
Including VAT
7,968,503

Renewal

Description
Option for TSO to extend the term of its Contract in respect of any or all of its applicable Lots in certain defined cases, at the discretion of the Contracting Entity. This option might apply where, for instance, there is a delay in completing the procurement for any subsequent phases envisaged under the DS3 Programme.

Suitability

Sme
Yes

Award criteria

Criteria

Criterion 1
Name
Technical Questionnaire
Type
quality
Description
Refer to RFP

Numbers

Entry 1
Number
1
Weight
order

Contract period

Ends
30 Apr 2026, 23:59
Starts
1 Oct 2025, 00:00
Max Extent Date
30 Jun 2026, 23:59
Entry 5
Id
5
Title
RRD L5NI - Replacement Reserve (De-Synchronised)
Status
active
Has Renewal
Yes
Description
RR (De-synchronised)’ means replacement reserve provided by the providing unit when: (i) not Synchronised to the power system in the case of a synchronous providing unit, or (ii) when connected to the power system and operating at a level less or equal to 0 MW in the case of an energy storage providing unit, or (ii) when connected to the power system in the case of a demand side unit

Value

Amount
6,640,422
Currency
EUR
Including VAT
7,968,506

Renewal

Description
Option for each TSO to extend the term of its Contract in respect of any or all of its applicable Lots in certain defined cases, at the discretion of the Contracting Entity. This option might apply where, for instance, there is a delay in completing the procurement for any subsequent phases envisaged under the DS3 Programme.

Suitability

Sme
Yes

Award criteria

Criteria

Criterion 1
Name
Technical Questionnaire
Type
quality
Description
Refer to RFP

Numbers

Entry 1
Number
1
Weight
order

Contract period

Ends
30 Apr 2026, 23:59
Starts
1 Oct 2025, 00:00
Max Extent Date
30 Jun 2026, 23:59
Entry 6
Id
6
Title
RRS L6NI - Replacement Reserve (Synchronised)
Status
active
Has Renewal
Yes
Description
RR (Synchronised)’ means Replacement Reserve provided by the Providing Unit when: (i) synchronised to the power system in the case of a synchronous providing unit, or (ii) when connected to the power system and operating at a level greater than 0 MW in the case of an energy storage providing unit or power park module. II.2.5) Award criteri

Value

Amount
6,640,422
Currency
EUR
Including VAT
7,968,506

Renewal

Description
Option for each TSO to extend the term of its Contract in respect of any or all of its applicable Lots in certain defined cases, at the discretion of the Contracting Entity. This option might apply where, for instance, there is a delay in completing the procurement for any subsequent phases envisaged under the DS3 Programme.

Suitability

Sme
Yes

Award criteria

Criteria

Criterion 1
Name
Technical Questionnaire
Type
quality
Description
Refer to RFP

Numbers

Entry 1
Number
1
Weight
order

Contract period

Ends
30 Apr 2026, 23:59
Starts
1 Oct 2025, 00:00
Max Extent Date
30 Jun 2026, 23:59
Entry 7
Id
7
Title
SSRP L7NI - Steady State Reactive Powe
Status
active
Has Renewal
Yes
Description
Steady-state reactive power or ‘SSRP’ means reactive power capability (Leading) and reactive power capability

Value

Amount
6,640,422
Currency
EUR
Including VAT
7,968,506

Renewal

Description
Option for TSO to extend the term of its Contract in respect of any or all of its applicable Lots in certain defined cases, at the discretion of the Contracting Entity. This option might apply where, for instance, there is a delay in completing the procurement for any subsequent phases envisaged under the DS3 Programme.

Suitability

Sme
Yes

Award criteria

Criteria

Criterion 1
Name
Technical Questionnaire
Type
quality
Description
Refer to RFP

Numbers

Entry 1
Number
1
Weight
order

Contract period

Ends
30 Apr 2026, 23:59
Starts
1 Oct 2025, 00:00
Max Extent Date
30 Jun 2026, 23:59
Entry 8
Id
8
Title
SIR L8NI - Synchronous Inertial Respons
Status
active
Has Renewal
Yes
Description
Synchronous Inertial Response (SIR) is the kinetic energy (at a Frequency of 50 Hz) of a centrally dispatched synchronous providing unit multiplied by the SIR factor (SIRF)

Value

Amount
6,640,422
Currency
EUR
Including VAT
7,968,506

Renewal

Description
Option for TSO to extend the term of its Contract in respect of any or all of its applicable Lots in certain defined cases, at the discretion of the Contracting Entity. This option might apply where, for instance, there is a delay in completing the procurement for any subsequent phases envisaged under the DS3 Programme.

Suitability

Sme
Yes

Award criteria

Criteria

Criterion 1
Name
Technical Questionnaire
Type
quality
Description
Refer to RFP

Numbers

Entry 1
Number
1
Weight
order

Contract period

Ends
30 Apr 2026, 23:59
Starts
1 Oct 2025, 00:00
Max Extent Date
30 Jun 2026, 23:59
Entry 9
Id
9
Title
RM1 L9NI - Ramping Margin 1 Hour
Status
active
Has Renewal
Yes
Description
Ramping Margin 1 is the increased MW Output and/or MW Reduction that a providing unit can provide to the company within one hour of the company issuing a dispatch instruction to a service provider and that the providing unit can maintain for a further two hours after the one hour period has elapsed. It is limited by the lowest availability in that three hour period.

Value

Amount
6,640,422
Currency
EUR
Including VAT
7,968,506

Renewal

Description
Option for TSO to extend the term of its Contract in respect of any or all of its applicable Lots in certain defined cases, at the discretion of the Contracting Entity. This option might apply where, for instance, there is a delay in completing the procurement for any subsequent phases envisaged under the DS3 Programme

Suitability

Sme
Yes

Award criteria

Criteria

Criterion 1
Name
Technical Questionnaire
Type
quality
Description
Refer to RFP

Numbers

Entry 1
Number
1
Weight
order

Contract period

Ends
30 Apr 2026, 23:59
Starts
1 Oct 2025, 00:00
Max Extent Date
30 Jun 2026, 23:59
Entry 10
Id
10
Title
RM3 L10NI - Ramping Margin 3 Hour
Status
active
Has Renewal
Yes
Description
Ramping Margin 3 is the increased MW Output and/or MW reduction that a providing unit can provide to the company within three hours of the company issuing a dispatch instruction to a service provider and that the providing unit can maintain for a further 5 hours after the 3 hour period has elapsed. It is limited by the lowest availability in that 8 hour period

Value

Amount
6,640,422
Currency
EUR
Including VAT
7,968,506

Renewal

Description
Option for TSO to extend the term of its Contract in respect of any or all of its applicable Lots in certain defined cases, at the discretion of the Contracting Entity. This option might apply where, for instance, there is a delay in completing the procurement for any subsequent phases envisaged under the DS3 Programme.

Suitability

Sme
Yes

Award criteria

Criteria

Criterion 1
Name
Technical Questionnaire
Type
quality
Description
Refer to RFP

Numbers

Entry 1
Number
1
Weight
order

Contract period

Ends
30 Apr 2026, 23:59
Starts
1 Oct 2025, 00:00
Max Extent Date
30 Jun 2026, 23:59
Entry 11
Id
11
Title
RM8 L11NI - Ramping Margin 8 Hou
Status
active
Has Renewal
Yes
Description
Ramping Margin 8 is the increased MW Output and/or MW reduction that a providing unit can provide to the company within eight hours of the company issuing a dispatch instruction to a service provider and that the providing unit can maintain for a further 8 hours after the 8 hour period has elapsed. It is limited by the lowest availability in that 16 hour period.

Value

Amount
6,640,422
Currency
EUR
Including VAT
7,968,506

Renewal

Description
Option for TSO to extend the term of its Contract in respect of any or all of its applicable Lots in certain defined cases, at the discretion of the Contracting Entity. This option might apply where, for instance, there is a delay in completing the procurement for any subsequent phases envisaged under the DS3 Programme.

Suitability

Sme
Yes

Award criteria

Criteria

Criterion 1
Name
Technical Questionnaire
Type
quality
Description
Refer to RFP

Numbers

Entry 1
Number
1
Weight
order

Contract period

Ends
30 Apr 2026, 23:59
Starts
1 Oct 2025, 00:00
Max Extent Date
30 Jun 2026, 23:59
Entry 12
Id
12
Title
FFR L12NI - Fast Frequency Response
Status
active
Has Renewal
Yes
Description
Fast Frequency Response (FFR) is the additional MW Output or MW reduction required compared to the pre- incident MW output or MW reduction, which is fully available from a providing unit within 2 seconds after the start of an event and sustainable up to 10 seconds after the start of the event.

Value

Amount
6,640,432
Currency
EUR
Including VAT
7,968,522

Renewal

Description
Option for TSO to extend the term of its Contract in respect of any or all of its applicable Lots in certain defined cases, at the discretion of the Contracting Entity. This option might apply where, for instance, there is a delay in completing the procurement for any subsequent phases envisaged under the DS3 Programme.

Suitability

Sme
Yes

Award criteria

Criteria

Criterion 1
Name
Technical Questionnaire
Type
quality
Description
Refer to RFP

Numbers

Entry 1
Number
1
Weight
order

Contract period

Ends
30 Apr 2026, 23:59
Starts
1 Oct 2025, 00:00
Max Extent Date
30 Jun 2026, 23:59

Items and delivery

Item 1
Id
1
Related Lot
1

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
71314000
Scheme
CPV
Description
Energy and related services
Item 2
Id
2
Related Lot
2

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
71314000
Scheme
CPV
Description
Energy and related services
Item 3
Id
3
Related Lot
3

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
71314000
Scheme
CPV
Description
Energy and related services
Item 4
Id
4
Related Lot
4

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
71314000
Scheme
CPV
Description
Energy and related services
Item 5
Id
5
Related Lot
5

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
71314000
Scheme
CPV
Description
Energy and related services
Item 6
Id
6
Related Lot
6

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
71314000
Scheme
CPV
Description
Energy and related services
Item 7
Id
7
Related Lot
7

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
71314000
Scheme
CPV
Description
Energy and related services
Item 8
Id
8
Related Lot
8

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
71314000
Scheme
CPV
Description
Energy and related services
Item 9
Id
9
Related Lot
9

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
71314000
Scheme
CPV
Description
Energy and related services
Item 10
Id
10
Related Lot
10

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
71314000
Scheme
CPV
Description
Energy and related services
Item 11
Id
11
Related Lot
11

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
71314000
Scheme
CPV
Description
Energy and related services
Item 12
Id
12
Related Lot
12

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
71314000
Scheme
CPV
Description
Energy and related services

Published documents

Entry 1
Id
conflictOfInterest
Description
Not published
Document Type
conflictOfInterest
Entry 2
Id
034327-2025
Format
text/html
Notice Type
UK4
Description
Tender notice on Find a Tender
Document Type
tenderNotice
Published
23 Jun 2025, 11:45

Buyer, suppliers and contacts

Organisation 1
Id
GB-PPON-PPVY-9479-DHPY
Name
SONI Ltd

Roles

buyer

Address

Region
UKN0E
Country
GB
Locality
Belfast
Postal Code
BT6 9RT
Country Name
United Kingdom
Street Address
12 Manse Road

Details

Classifications

Entry 1
Id
privateUtility
Scheme
UK_CA_TYPE
Description
Private utility
Entry 2
Id
GB-NIR
Scheme
UK_CA_DEVOLVED_REGULATIONS
Description
Northern Irish devolved regulations apply

Identifier

Id
PPVY-9479-DHPY
Scheme
GB-PPON

Contact

Name
Deirdre Fraser
Telephone
0782 519 7753

Recorded locations

  • Buyer location · Belfast · UKN0E · BT6 9RT · United Kingdom
  • Delivery location · UK · United Kingdom

Notice and amendment history

1 published notice version reviewed by ProcuraAxis.

1 VERSION
  1. ocds-h6vhtk-055192-2025-06-23T11:45:22+01:00Tender notice on Find a Tender ·