In 2023/24, we contracted 706 MW of Flexibility Services: dispatched 554 MWh and spent £275k.
If you own, operate, manage or supply generation, storage or demand assets over 10kW in any of the advertised zones you may be able to provide flexibility services.
Participating in Flexibility with SSEN
SSEN has long served diverse geographic areas, and this experience means we’ve always innovated when it comes to managing the supply and demand of electricity.
We continue to make progress in building our flexibility markets, having procured over 700 MW since the beginning of ED2. We have also signed up a total of 12 providers to the latest version of the overarching agreement, ready to bid in our markets.
To maximise market participation, we have done the following over the past year:
→ Reduced minimum DER (Distributed Energy Resources) size to 10 kW
→ Trialed Guaranteed revenue for some Variable Availability services
→ Improved Bid Pricing Form
→ Implemented Overarching Agreements
We continue to seek feedback from all stakeholders on areas that work well and those where further improvements could help to drive increased engagement and participation from both existing and potential future providers of flexibility services.
How to Take Part in Flexibility
The first time you participate there are several steps that you need to take.

To participate in Flexibility Services with SSEN, you will follow our standard process that takes place on our Market Platform, ElectronConnect. This starts with registration and prequalification. A copy of the “Flexibility Service Pre-Qualification Standard Template” will be available on ElectronConnect and can also be found under “Service Documentation” in
Once you are pre-qualified, you can move on to the contracting process. We have specific time periods where there is an opportunity for you to accept the Terms and Conditions of the Overarching Agreement. This is run in the Electron Connect platform. At the end of the time period, submissions are reviewed and approved Providers are sent an overarching agreement for signature. Signing the overarching agreement allows you to participate in future biddings windows. The opportunity to participate occur several times a year, so keep an eye out for announcements.
Before the bidding window opens, you'll prepare by declaring which of your assets are located in areas where we are seeking flexibility, as announced in advance. We conduct long term bidding windows 2-3 times a year, for needs >3-months in advance, as well as monthly short term bidding windows for upcoming needs in <3-months.
If your bids for flexibility are successful, you will be notified of availability needs at the period of time specified by the service type (either month ahead, week ahead or day ahead).
Upcoming Opportunities to sign an Overarching Agreement
We will be running a new opportunity to be awarded an Overarching Agreements in November 2025. This will open on Monday 10th November 11:00 and close on Monday 24th November 17:00 (step 2 in our process).
Providers must have submitted and have had approved, their Pre-Qualification Questionnaire (PQQ) before Monday 10th November at 11am to participate (step 1 in our process).
Please watch the above videos to find out about the different steps in the process and contact us at flexibilityprocurement@sse.com If you have any questions.
Upcoming Bidding Rounds
Long-Term, > 3-months Ahead
Variable Availability + Operational Utilisation (VAOU): 09:00 Monday 1st September 2025 – 11:00 Friday 26th September 2025
Scheduled Utilisation (SU): 09:00 Monday 1st September 2025 – 11:00 Friday 26th September 2025
Short Term, Month Ahead:
Tuesday 7th October 2025 09:00 – Thursday 9th October 2025 17:00
Re-tender: Load Managed Area (LMA) Payment Service
Tuesday 16th September 2025 09:00 - Thursday 18th September 2025 17:00
We are pleased to announce that we are re-running the tender for the Load Managed Areas (LMAs) payment service which is focused on households with 5 port smart meters being implemented.
Should you wish to participate, please click on the link above for further details.
Document Library
Access our document library for service documents, reports, and procurement-related information.
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