Fluorinated gases, such as HFC, PFC and SF₆, are powerful greenhouse gases (see table) so their release into the environment should be avoided as part of efforts to curb climate change. However, it should also be avoided on financial grounds as leaky refrigeration units run less efficiently, making them more expensive to run.

The Regulations

To monitor the use and control the release of these gases, the Fluorinated Gas Regulations (F-Gas Regs) were introduced in July 2007. These place a requirement on owners of industrial/commercial refrigeration units which contain more than 3kg of these gases to have the units regularly inspected by certified professionals. The larger the unit, the more frequently they need to be inspected. Depending on the type of the premises, these regulations are enforced by either the Scottish Environment Protection Agency or Local Authority Officers. Failure to demonstrate compliance with the Regulations may result in fines and possibly prosecution.

To help users and refrigeration professionals minimise leakages from refrigeration systems, the Institute of Refrigeration and the Carbon Trust established the Real Zero programme, which provides a variety of information on good practice, training and tools.

The Regulations also phase out certain refrigerant gases, e.g. HCFC's, and this has sparked interest in less damaging alternatives, such as Carbon Dioxide, which, when used as a refrigerant, is known as R744.

Reducing Energy Consumption in Refrigeration Units

Refrigeration can account for a considerable proportion of businesses' energy bills, ranging from 30% for pubs and clubs to 70% or more for small shops with refrigerated cabinets. Half of this energy consumption, however, could be saved through good housekeeping, such as appropriate siting of appliances, and regular maintenance. The Carbon Trust provides a range of useful guidance on how to keep your refrigeration units running as efficiently as possible.

Support Replacing Refrigeration Units

Operators wishing to replace existing units with more efficient models can benefit from enhanced tax relief through the Enhanced Capital Allowance scheme. Details of equipment eligible for tax relief through this scheme are available on the Energy Technology List.