sthlmflex: ShortFlex and LongFlex

Sthlmflex is a research project where Vattenfall Eldistribution, Ellevio and EON Energy Distribution, in collaboration with Svenska kraftnät (Svk), purchase flexibility on NODES’ ShortFlex and LongFlex markets.

For winter 2022/23 the market will run from 30 November 2022 to 31 March 2023. This follows the project’s first and second winter in 2020/2021 and 2021/2022.

During winter 2022/23 Vattenfall Eldistribution, Ellevio and EON Energy Distribution will be buying flexibility as:

  • hourly products on a day ahead and intraday basis in NODES’ ShortFlex market;
  • as seasonal availability products, that consist both of an activation and an availability price, through a LongFlex tender operated by NODES and through NODES platform.

On certain days, the network operators will in addition pay an availability price for offers posted in the ShortFlex market.

To participate in sthlmflex during winter 2022/23 please:

  • Fill in the Expression of interest form below by 31 August 2022.
  • Submit asset details using the Asset detail form below by 31 August 2022 (participation in the seasonal LongFlex tender) or 18 September 2022 (ShortFlex participation).
  • Submit the FSP Registration form by 2 October 2022.
  • Sign the Membership Agreement and submit it to member.services@nodesmarket.com by 2 October 2022.

By signing the Membership Agreement, participants adhere to NODES Rulebook and to Svk’s Code of Conduct.

Participants also need to submit the Power of Attorney  to Vattenfall Eldistribution and Ellevio to enable the network operators to collect meter values.

If you already participated in sthlmflex during winter 2021/22, you do not need to resubmit the above documents. Please confirm your continued participation by email to member.services@nodesmarket.com.

The participation process is described in full here: Swedish version / English version.

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  • Company and Contact Details

  • Data Management

  • FSPs can elect to calculate their own baseline values, rather than relying on the default baseline. Do you intend to calculate your own baseline?
  • FSPs can elect to provide their own meter values, rather than relying on meter data provided by the network operators. Do you intend to provide your own meter data?

  • Products

  • Market participation

  • Number of flexibility assets (approximation)

    FSPs are only expected to provide an approximate distribution of flexibility assets between the grid areas. Two of E.ON's local grid areas are located below the regional grid areas. FSPs with assets located in E.ON's local grid areas should include these in E.ON's local grid areas only. Assets that are located in E.ON's local network area can sell flexibility both at a local and regional level.
  • Linked to regional grid area
  • Linked to regional grid area
  • NOT linked to regional grid area in sthlmflex

  • Estimated flexibility volume (approximation)

    FSPs are only expected to provide an approximate distribution of flexibility assets between the grid areas. Two of E.ON's local grid areas are located below the regional grid areas. FSPs with assets located in E.ON's local grid areas should include these in E.ON's local grid areas only. Assets that are located in E.ON's local network area can sell flexibility both at a local and regional level.
  • Linked to regional grid area
  • Linked to regional grid area
  • NOT linked to regional grid area in sthlmflex

  • Consent to Information Handling

  • This field is for validation purposes and should be left unchanged.

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Asset details

Please upload information about your assets using the Excel template (see below). For participation in the seasonal LongFlex tender, please also respond to the Invitation to Tender (ITT) issued by Vattenfall Eldistribution by submitting the Tender Form at the latest on 20 October 2023.
Max. file size: 10 MB.

For participation in the seasonal LongFlex tender, please respond to the Invitation to Tender (ITT) issued by Vattenfall Eldistribution by submitting the Tender Form at the latest on 23 September 2022.