Registering flexibility assets makes it simple and reliable for providers to record and manage their assets. Elexon will deliver a single, trusted system which will reduce paperwork, build confidence in the market, and help unlock the full value of assets while supporting a more digitalised energy system.

All flexibility pages

 

Contact information

[email protected] / Elexon Support?

What assets can be registered?

The register will initially focus on smaller-scale assets (<50 kW)[Verification needed: ]

When will this be available?

Elexon will launch a fully supported flexibility market asset register in 2027. This system will act as the single source of truth for all registered asset details.

Benefits of registering assets

Recording assets through this process offers key advantages for flexibility service providers (FSPs) and the wider market:

  • faster market entry – less paperwork means you can get started more quickly
  • better data – a complete and trusted view of assets improves sharing and interoperability
  • greater confidence – make decisions with clear, transparent information
  • easier integration – simplifies adding new and existing flexibility technologies to the system

It’s also crucial for supporting the growth of consumer-led flexibility, which needs to increase from 2.5GW to 12GW by 2030. Streamlining asset registration helps improve coordination and efficiency across the entire flexibility market.

Guiding principles for the registration process

The system for registering assets is built around four key principles:

  • open & collaborative – we work with stakeholders to shape how the process works
  • API-first & connects easily – designed to work smoothly with other systems through APIs and the Data Sharing Infrastructure (DSI)
  • follows standards – uses national and international standards to keep things consistent
  • secure & reliable – keeps data safe, private, and trustworthy for everyone

Get involved

You can help shape the asset registration process through our series of design workshops, running through the end of 2025. In these sessions, you’ll help develop core features and functions to make registration easier and more effective.

To find out when the next design workshop is, see our calendar.

What is FMAR?

In March 2025, Ofgem appointed Elexon as the delivery body for the Flexibility Market Asset Registration (FMAR). Our mission is to create a single, reliable system that standardises and simplifies the registration process for flexibility providers. By creating a “single source of truth,” we’re removing administrative barriers and fostering greater confidence in the market. This will maximise participation and unlock the full value of flexibility assets for both providers and consumers, ultimately taking the energy system to the next level of digitalisation.

When will FMAR be delivered?

Elexon will launch the Flexibility Market Asset Register solution in 2027. This system will serve as the single source of truth for all registered asset details.

How will FMAR benefit the market?

This vital digital infrastructure will unlock the full value of assets for Flexibility Service Providers (FSPs). It’s also crucial for supporting the growth of consumer-led flexibility, which needs to increase from 2.5GW to 12GW by 2030. The anticipated benefits include:

  • Faster market entry: A reduced administrative burden means market participants can get up and running more quickly.
  • Improved data: A trusted, comprehensive view of flexibility assets and their capabilities, which improves data sharing and interoperability.
  • Greater confidence: Monetise assets quickly with greater transparency and confidence in your decision-making.
  • Easier integration: The system will simplify and accelerate the integration of new and existing flexibility technologies.

By streamlining the registration process, FMAR will lead to enhanced coordination and increased operational efficiency across the entire flexibility market.

FMAR design principles

The design of FMAR is guided by four core principles:

  • Open & Collaborative: We have an open design philosophy through our engagement activities to ensure your input directly shapes the system.
  • API-First & Interoperable: The system will connect seamlessly with others, leveraging the Data Sharing Infrastructure (DSI) for easy and efficient data exchange.
  • Standards-Based: We will align with national and international data standards, including IES5, OpenADR, and CIM.
  • Secure & Trusted: Security, data privacy, and reliability are at the core of our architecture, ensuring impartiality and trust.

Get involved in the design

We are currently hosting a series of design workshops through the end of 2025. In these workshops, you will help develop the core functions and features of the Flexibility Market Asset Register. To find out when the next design workshop is, check out our calendar.