Today, Elexon has published its first flexibility vision and action plan for how it will support the sector to deliver a clean and smart energy system, by removing barriers and unlocking the value of data.
As part of this, Elexon has set out plans to make half-hourly data available in 2026 via its Smart Data Repository.
The action plan explains how Elexon will work with the Department for Energy Security and Net Zero, Ofgem, the National Energy System Operator (NESO) and industry, supporting the delivery of a five-fold increase (to around 12GW) in consumer-led flexibility by 2030.
Elexon will begin migrating suppliers’ meters to half hourly settlement from October 2025. By October 2026 it will have moved around c. 80% of all meters to the new arrangements.
From October 2026, Elexon will make data from meters that have moved to half-hourly settlement publicly available on its Insights Solution website (which provides the largest data sets available on the wholesale electricity markets).
Peter Stanley, Elexon Chief Executive, said, “Achieving a five-fold increase in consumer-led flexibility provision in five years will only be possible if we work quickly and collaboratively with other organisations. The next few years are critical. Our plan explains what we will deliver to support this, and recommendations for where action is needed across the sector, to achieve the Clean Power goal.
“By providing access to half-hourly data we will be helping suppliers develop next-generation flexibility tariffs. As a sector we must work together to make flexibility provision more appealing to a wider range of consumers, backed by simple processes and attractive rewards.”
Elexon will be making half-hourly data available at a more granular level in compliance with Ofgem’s emerging consumer consent solution framework, which will protect consumers’ data when it is shared with trusted third parties. The consent solution is set to go live in 2027.
Elexon’s flexibility vision and action plan includes a range of essential actions to support development of more open, coordinated and transparent flexibility markets, which will provide the right environment for scaling up flexibility trading.
Elexon will begin delivery of the market facilitator role in late 2025, with key outputs including the alignment of the baselining methodologies used by NESO and Distribution System Operators. These methodologies measure the amount of flexibility that a provider can offer compared with their usual generation or consumption.
As market facilitator we will also implement new, broader primacy rules – providing clarity on which flexibility purchaser takes precedence when the same asset is called on to provide more than one service.
From 2027 we will launch the flexibility asset registration (FMAR) solution, which is currently already in development. It will be the single source of the truth for recording details of assets that are participating in markets. This will make it far easier for companies and consumers to register assets across flexibility markets.
