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How do I get access to ECOES?

Access to ECOES is almost always restricted to MRA parties. Electricity Suppliers and Distribution Business will however be set up with ECOES access once Market Assurance clears a Party for Controlled Market Entry (CME) and has an MPID live in MDD. Upon completion of both stages MRASCo will instruct the ECOES Service Provider to create a Company Group for the Party.

Meter Operators, PPMIPs, Data Aggregators, Data Collectors, Meter Asset Providers and other electricity agents may also be entitled to access ECOES. Once an Agent has an MPID live in MDD MRASCo will instruct the ECOES Service Provider to create a Company Group for the Agent.

I’m the MAU and have forgotten my password/been locked out of my account, what should I do?

Please contact the CAS helpdesk with your details, CAS will inform the ECOES Service Provider to reset you account.

I’m a regular ECOES user and have fogotten my password/ been locked out of my account, what should I do?

Please contact your company’s Master Admin User (MAU) to reset your password.

Who is my Supplier?

We are unable to provide that information however please call your local Distribution Business who can find out this information for you on:

  • Eastern – UK Power Networks – 0870 196 3082
  • East Midlands – Central Networks – 0845 603 0618
  • London – UK Power Networks – 0845 600 0102
  • N. Wales, Merseyside and Shropshire – SP Distribution – 0845 279 9101
  • West Midlands – Central Networks – 0845 603 0618
  • NE. England – Northern Power Grid – 0845 601 3268
  • NW. England – Electricity North West – 0870 751 0093
  • N. Scotland – SSE – 0870 900 9690
  • S. Scotland – SP – 0845 270 9101
  • SE. England – UK Power Networks – 0845 601 5467
  • S. England – SSE – 0870 905 0806
  • S. Wales – Western Power – 0845 601 5972
  • SW. England – Western Power – 0845 601 5972
  • Yorkshire – Northern Power Grid – 0845 330 0889

I’m an electricity customer and have been told my address details are wrong in ECOES, can you correct this for me?

Data in ECOES is a reflection of that held in Registration Systems and as such must be corrected ‘at source’. This correction should be initiated by your current Supplier.

I have a number of Meter Serial Number updates however they have not been changed on ECOES, what should I do?

MRASCo cannot make any changes to ECOES, this is a MOPs responsibility to ensure changes to ECOES are made.

How much does access to ECOES cost?

This is determined on a case by case basis. Assuming the CAS accepts the request, the applicant and the CAS will agree the proposed terms of access and costs and charges. This will include costs for admin, data access, audit and any bespoke reports or extracts which need to be created. The agreed terms and costs will be subject to MEC agreement.

I am a non-domestic customer, can I have access to ECOES?

Non-domestic customer applications are processed on a case by case basis. Please visit and click “are you a non-domestic customer” to complete the application (including two non-domestic MPANs). Please then post the application to the address listed on the form.

What is the status of my ECOES application?

Applicants should note that the process can typically take up to 10 weeks. There are seven steps to the application and access process, which are:

  1. Initial application
  2. Initial CAS assessment
  3. Agreement of terms for access or data provision (including charges)
  4. MEC approval
  5. Licence terms agreed and signed
  6. Initial audit completed
  7. Access or data provided

What is ECOES?

ECOES (the Electricity Central Online Enquiry Service) is funded by electricity suppliers and distributors and governed under the Master Registration Agreement (MRA). ECOES was designed to assist Suppliers in the customer transfer process by allowing the triangulation of data; it is also used to provide benefit to MRA parties in other key areas.