A comprehensive resource for Design & product specification for Toshiba, FujitsuCIAT and Aspen products.

CIAT Cristopia Energy Storage


CRISTOPIA STL (Storage of Latent heat) technology is widely used in Europe, Asia and North America. It consists of nodules used to store the cooling energy produced by water chillers.

The energy is primarily stored at night-time, when cooling demand is lower, and redelivered during the day when greater cooling capacity is needed.

Furthermore, due to the lower temperatures when energy is stored at night, the chillers operate more efficiently. Demand on the chillers is thus better balanced between day and night, which enables the use of smaller units.

STL storage features a special control and supervision system, Cristo’Control2, which monitors the system’s performance.


Chiller size by 30% to 70%

The quantity of coolant

The size of cooling towers or dry coolers The subscribed demand

The floor area of technical rooms Chiller shutdown/restarts Maintenance costs

Running costs 

Enhance the environmental footprint Better energy management

Smoother electrical inrush current, favouring more efficient electrical power stations Redu ced primary energy consumption (TEP)

Reduced CO2 emissions

Redu ced peak-time strain on electrical distribution networks (Controlled Electrical Demand)

Reduced coolant quantities

20% to 40% improvement of TEWI


The cooling capacity of your system

The energy efficiency of the chiller

The consistency of the electrical load profile System yield and dependability

System service life

System flexibility

Energy management