Callisto secures elective half hourly data management contract with British Gas

19th November 2021

Callisto, the largest provider of regulated data flow management to energy suppliers in the UK, and a part of M Group Services, has further enhanced its growing market position after securing an elective half hourly contract with British Gas. Under the terms of the agreement, Callisto will support British Gas with its elective half hourly data growth, unlocking savings now ahead of the full transition to market wide half hourly settlement.

Lee Dittrich, Customer Energy Settlement and Industry Manager for British Gas commented: “We are very pleased to be working with our strategic partner Callisto, on delivering a best in class Elective Half-Hourly solution for British Gas.  We welcome the opportunity to enter this market for the first time and assess the opportunity to drive savings for both our customers and the business.”

Richard Orna, Callisto’s Managing Director, commented: “We are very happy to be assisting British Gas with the move to elective half hourly. We are working collaboratively to deliver real benefits for British Gas in this transitional period.” Previously embedded within its sister business, Morrison Data Services, Callisto was launched in September 2020 to promote further growth and investment for its products and services and to address the needs of a changing market and customer base.

To find out more about how we are supporting an increasing number of suppliers with EHH please contact us at:

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using the latest technology.

Experts in settlement performance - since our market inception, we’ve consistently demonstrated an exemplary record, with a robust settlement process that complements our customers best practice for customer services and billing.

Ensuring data security is at the core of our operations. We ensure the integrity and security of customer information by designing security into our systems and processes. This is further supported through the use of secure data centres. 

Our Data Management services are delivered with a comprehensive quality assurance commitment. Business management processes are certified to ISO 9001 and information security management systems are certified to ISO 27001 providing complete security assurance.