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power saving cold storage containers and COLD rooms


inside view

We are often asked how much power will we use?

A simple and logical question. The short answer is average 2-3 kw per hour across a range of set points but this may not be an accurate answer. There are many variables that heavily influence power consumption. These include: set point, solar heating, external temperature, how full or empty is the container or cold room, how often are doors opened and closed and the core temperature of  products placed in the container.

We use refirigeration that has proven low power consumption including the TK Magnum Plus. These are all engineered to supply maximum effect with minimal power consumption!

When comparing with older container refrigeration the power savings are typically between 50 and 75% which reflects more efficient refrigeration and improved insulation values of new ArcticStore product range.

Set point: As there is less variance from set point and supply air temperature at chill temperatures the greater the power consumption. Do not use a set point lower than actually required as this increases running time and power costs. 

Solar heating: The greater the exposure to sunlight the larger the solar heating and therefore power consumption.

External temperature: The greater the variance between set point and ambient temperature the more power will be used. 

How full or empty is the container or cold room: The more air in the container or cold store the greater the energy used as air easily absords heat.

How often are doors opened: Open doors introduce external air and the more often doors are opened or remain open the higher the power consumption. The air curtains reduce the heat gain but there is still significant heat gain to the air circulating that inevitably increases energy use.

Core temperature of  products placed in the container: This can be a major unseen issue and cause of increased power consumption! Any negative variance between core temperature and set point will increase energy use as heat contained in the products will first need to be neutralised by the refrigeration system. 

Energy saving mode: When the set point is positive then energy saving mode can be activated. This activates slow fan speed where normally high fan speed would be applied. Please check product suitability for slow fan speed operations before activating.  

Defrost: Automatic defrost is standard on all our refrigeration units. Do not defrost too often or too infrequently. There needs to be a common sense balance to ensure optimal conditions with minimal ice deposits ensuring the most advantageous running costs. Older containers often take longer to defrost with resulting hgher energy consumption. 

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