HomeRulebook HomeBalancing and Settlement CodeGuidance NotesVirtual Lead Party
CONTENTS
- Introduction
- Market Entry and Party Registration Process
- Virtual Lead Party (VLP) and Asset Metering Virtual Lead Party (AMVLP) – Entering the Market
- CVA Market Entry
- Accession
- Appoint Authorised Signatories
- Order Communications Line
- CVA Qualification testing
- Funds Accession
- Nominate operational contracts
- Register Party Role
- SVA Qualification Process
- Planning meeting
- Completion/submission of the SAD
- PAB Approval
- Secondary BM Units, Meters and Asset Meters
- Registration of Secondary BM Units
- MSID Pair Allocation – P0278
- Completing the MSID Pair Allocation template
- The MSID API enables authorised participants to insert, read, and update MSID Pairs and their associated customer consent information in real-time:
- Asset Meter Registration and AMSID Pair Allocation
- Stage 1: Asset Registration
- Stage 2: AMVLP Agent Registration
- Stage 3: Asset Meter Registration
- Allocation of Asset Meters to a Secondary BM Unit
- Settlement Expected Volumes and Baselining Methodologies
- Registering an Additional or Secondary BM Unit and associated Metering Systems to use Settlement Expected Volumes
- Baselining Methodology
- Event Days
- Data flows for Baselining Statuses and Event Days
- Lifecycle of the trading day and how we calculate Settlement for VLPs and AMVLPs
- Imbalance Settlements for VLPs and AMVLPs
- Data flows
- Trading charges
- FAQs
- Can other BSC parties have aggregated Secondary BM Units?
- Can you register in multiple roles?
- Where can you find a list of all the charges VLPs and AMVLPs face?
- Can VLPs and AMLVPs register assets on behalf of a third party (i.e. a client’s assets)?
- Can VLPs AMVLPs use a trading agent to participate in BM?
- What are the penalties for over and under delivery?
- Is there a limit to the size in MW of secondary BM Units?
- In the case the BM Unit is larger than 50MW or 100MW, are there any additional requirements on the BM Unit (metering etc.)?
- What data does a VLP or AMVLP need to send to Elexon for a Secondary BM Unit on a daily basis?
- Can a VLP or AMVLP setup MVRN Authorisations for a Secondary BM Unit?
- What if an overlap occurs when submitting MSID / AMSID Pairs?
- Other considerations
- Other Codes
- Relevant Documents
- Further Information
Wider Access Guidance For Virtual Lead Parties (VLPs), Asset Metering VLPs and Suppliers V8.0
Effective From Date:14/07/2026
Status:LIVE
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