Skip to content
Log into REC Portal
Contact
  • About
    • Who We Are
    • What We Do
    • Board & Board Committees
    • Executive Team
    • Corporate & Financials
    • Careers
  • Services
  • Programmes
    • Consumer Consent Solution
    • Data & Digitalisation
    • REC Portal Relaunch
    • Delivering Service Excellence
    • Energy Theft Reduction Strategy
    • Market-wide Half Hourly Settlement
    • Metering Services
    • Payment Method Levelisation
    • Regulatory Programme & Policy Delivery
    • Tariff Interoperability Project
  • News & Events
  • Consultations & Responses
  • About
    • Who We Are
    • What We Do
    • Board & Board Committees
    • Executive Team
    • Corporate & Financials
    • Careers
  • Services
  • Programmes
    • Consumer Consent Solution
    • Data & Digitalisation
    • REC Portal Relaunch
    • Delivering Service Excellence
    • Energy Theft Reduction Strategy
    • Market-wide Half Hourly Settlement
    • Metering Services
    • Payment Method Levelisation
    • Regulatory Programme & Policy Delivery
    • Tariff Interoperability Project
  • News & Events
  • Consultations & Responses
Contact
REC Portal
  • About
    • Who We Are
    • What We Do
    • Board & Board Committees
    • Executive Team
    • Corporate & Financials
    • Careers
  • Services
  • Programmes
    • Consumer Consent Solution
    • Data & Digitalisation
    • REC Portal Relaunch
    • Delivering Service Excellence
    • Energy Theft Reduction Strategy
    • Market-wide Half Hourly Settlement
    • Metering Services
    • Payment Method Levelisation
    • Regulatory Programme & Policy Delivery
    • Tariff Interoperability Project
  • News & Events
  • Consultations & Responses

Introducing the Electricity Enquiry Service (EES) API Sandbox: Preparing for Market-wide Half Hourly Settlement (MHHS)

The Electricity Enquiry Service (EES) is undergoing important changes as part of the implementation of Market-wide Half Hourly Settlement (MHHS), and these changes will affect all EES users. To help organisations prepare for these updates, a dedicated MHHS EES API Sandbox has been created. This sandbox environment is now available to all users, with access keys […]

Join our newsletter

We’ll send you regular updates. No spam.

Join our newsletter

Subscribe to receive updates from RECCo

We care about your privacy

Company details

Registered Address
Retail Energy Code Company Ltd
27 Old Gloucester Street
London
WC1N 3AX

Registered in England
Reg. No. 10989875
VAT No. 322 195 033

Site links

  • About us
  • Contact us
  • Email us

Legal

  • Privacy policy
  • Site terms and conditions

Social

  • LinkedIn

Accreditations

© 2026 RECCo All rights reserved.