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Schematic of a Cristopia system with chiller loop

UK: Ciat Group, and its energy storage subsidiary Cristopia Energy Systems, has launched an advanced thermal energy storage (TES) system for air conditioning and industrial process applications.

The Ciat Cristopia system reduces end users’ energy costs by shifting away from reliance on expensive peak day-time power by harnessing off-peak electricity at night. Savings of between 30% and 70% are said to be achievable for cooling production.

It also reduces the load on the chiller by smoothing-out peaks in the daily load profile, in the process also reducing chiller maintenance costs and the size of the combined refrigerant charge on a site.   

How energy use is managed over a daily cycle with and without TES installed

David Dunn, director and general manager of Toshiba Air Conditioning and Ciat in the UK, said, “In the age of ever-rising refrigerant costs, and increasingly stringent legal requirements around F-gas, we believe opportunities to reduce refrigerant charge will be highly attractive to end users with significant cooling loads. With better regulated cooling production and delivery across the daily cycle, there is the added bonus of reduced noise as a result of smoothing out peak chiller operation.”

The system’s development is the result of 30 years’ collaborative research between Cristopia, technical centres and universities in France and across Europe.

The Cristopia TES solution also includes a monitoring and control system that optimises the performance and energy efficiency of the complete installation.

The system, which will also be available from Toshiba Air Conditioning in the UK, is present in more than 3,000 installations around the world.


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