List of homepage news articles
This page lists all of the news articles we have produced over the last year. Any news articles older than 1 year are removed from the website as they will have concluded their designated lifecycle. Please contact us if you are looking for specific information on any subjects we have covered.
CP1559 Assessment ConsultationRead More
This Change Proposal will deliver improvements to the Complex Sites process.
Changes to BSC Parties and Qualified Persons: February 2025
This page lists changes to the status of Balancing and Settlement (BSC) Parties and Qualified Persons in February. It includes information on any new qualifications and registrations, new market participants, withdrawals and defaults.
Consultation on Risk Operating Plan 2025/26Read More
We invite you to comment on the Risk Operating Plan (ROP) for 2025/26. The ROP provides an overview of planned activities undertaken by the Performance Assurance Administrator (PAA) as part of the Performance Assurance annual cycle.
Annual Demand Ratio and Group Correction Factor workshop
Join us for our Annual Demand Ratio (ADR) and Group Correction Factor (GCF) workshop, on Tuesday 4 March 2025. In this workshop we’ll cover:
- Introduction and housekeeping
- General Overview: Elements and Impact
- Aggregation Rules
- Technical Assurance of Metering (TAM) Audit for ADR/GCF
- Performance Assurance Framework
- Market-wide Half Hourly Settlement (MHHS) Overview: Proposed Changes to ADR
- Workshop Session
Coffee and lunch will be provided on the day.
Submission of Generation and Demand Capacity (GC/DC) for the Spring 2025 BSC Season
The Spring BSC Season begins on 1 March and if you are using the Elexon Kinnect Customer Solution, the deadline for submitting your GC and DC values for the Season is 14 February 2025.
Changes to BSC Parties and Qualified Persons: January 2025
This page lists changes to the status of Balancing and Settlement (BSC) Parties and Qualified Persons in January. It includes information on any new qualifications and registrations, new market participants, withdrawals and defaults.
CALF values Spring 2025 BSC Season: appeal deadline 1 February 2025
The Credit Assessment Load Factor (CALF) values for the Spring 2025 BSC Season, which runs from 1 March 2025 to 31 May 2025, are available from the Credit/Credit Alerting section under the Financial and Credit menu on the Elexon Portal.
If you are the Lead Party of a non-Credit Qualifying BMU, you can appeal an assigned CALF value if you believe it does not accurately represent your expected activity.
Improving customer experience for the Energy Contract Volume Aggregation Agent
The Energy Contract Volume Aggregation Agent (ECVAA) is one of the BSC agents that Elexon uses to deliver the Balancing and Settlement Code (BSC). The ECVAA receives notifications of bilateral trades between Trading Parties. It then time-stamps and validates the trade before sending the data to Elexon’s Settlement Administration Agent (SAA). The SAA calculates payments for Parties and performs the daily Settlement Runs.
ECVAA is a critical, 24/7 service for customers that is vital for the continuous operation of Balancing and Settlement. The ECVAA must send an acknowledgement of any trades to Parties after it receives them.
Elexon and ElectraLink working together for Market-wide Half Hourly Settlement
Source: Elexon corporate websiteOver the past year, Elexon and ElectraLink have been working together to ensure that access to half-hourly consumption data for large-scale meters (D0036/D0275), which have historically transferred across the DTS, will continue to be available after it begins to be transferred across Elexon’s Data Integration Platform (DIP) for Market-wide Half-Hourly Settlement (MHHS).
Webinar and consultation for Risk Evaluation Methodology and Risk Evaluation Register 2025/26Read More
We invite you to respond to the consultation on the Risk Evaluation Methodology (REM) & Risk Evaluation Register (RER) draft documents for the 2025/26 Performance Assurance Operating Period. The REM sets out the methodology for identifying and scoring the significance of Settlement Risks and the RER documents the Settlement Risks and associated information.
Public notification of Tomato Energy Limited’s lack of progress against its EFR milestones
In the Public Notification (EL04172): Public notification of Tomato Energy Limited (BSC Party ID: MARIGOLD, MPID: MARI)’s failure to meet multiple milestones in its Error Failure Resolution (EFR) plan following escalation to the Performance Assurance Board (PAB), Elexon noted that the BSC Panel had requested additional information about Tomato Energy’s lack of progress against its EFR milestones be made public.
- See the EL04172 Elexon Circular.
Elexon consults on its 2025/26 business plan
Source: Elexon Corporate WebsiteWe have published our 2025/2026 business plan for consultation with BSC Parties setting out activities we will deliver in April 2025 – March 2026, supporting progress to Clean Power 2030 and Net Zero.
Consultation on the BMU / MSID Allocation service impacting Virtual Lead Party, Virtual Trading Party and SupplierRead More
Elexon have received feedback from several industry participants (Virtual Lead Parties, Virtual Trading Parties) about plans to allocate large volumes of MSID Pairs to Balancing Mechanism Units (BMUs) to enable independent Aggregators to offer Balancing Services and Participate in the Wholesale Market through P415.
Webinar about MHHS Supplier Charges
Elexon ran a webinar that highlighted the principles of Supplier Charges post Market-wide Half Hourly Settlement (MHHS) implementation. From that webinar we have also produced a list of FAQ which might be helpful.
Introduction to Elexon and the Energy Market: February 2025
This event is now fully booked. To sign up for the waitlist, please email [email protected] with the following:
- Your full name
- Your organisation
- Your job title
- Your work email address
- Any dietary requirements
This seminar is an all-day event that provides a useful introduction to Elexon and the different roles we perform across GB energy markets. You’ll hear presentations from a range of Elexon colleagues, as well as from a guest presenter from National Energy System Operator (NESO), and be given the opportunity to ask questions and network with other industry professionals.
MHHS: Ofgem approval of Change Request 055 to allow for robust testing time
Source: Elexon Corporate WebsiteConsultation: increasing CAP to £120/MWh from 12 December 2024Read More
This page gives details of a consultation on increasing the Credit Assessment Price (CAP) to £120/MWh from 12 December 2024. This two-day consultation will close at 17:00 on 27 November 2024.
Market Facilitator governance workshop 1 on 27 November 2024
Source: Elexon corporate websiteElexon would like to invite interested parties to help us develop the enduring arrangements for the market facilitator role, through a series of six to seven workshops taking place between end 2024 and March 2025.
CP1592 Implementation Phase Consultation to Upgrade of NHHDA and EAC/AA systemsRead More
The current versions of NHHDA (Non Half Hourly Data Aggregation) and EAC/AA (Estimation of Annual Consumption/Annualised Advance) system applications that Elexon provides to Party Agents run on Oracle 12c, for which Oracle Corporation withdrew application support in 2022.
This CP proposes to upgrade EAC/AA and NHHDA to the latest available version of Oracle 19.21. Where possible, it leverages cost savings by aligning with Elexon’s planned update to other BSC central systems
Market Index Definition Statement Review 2024
The Market Index Definition Statement (MIDS) is annually reviewed by the BSCCo on behalf of the BSC Panel, to ensure that the Market Index Price is providing a reasonable reflection of the price of wholesale electricity in the short term market.