Energy bills are headed straight for the deep freezer at supermarket Iceland.

The frozen food retailer has cuts its building energy costs by £6,000 per store each year by bringing in a new air conditioning system across all its 800-odd stores.

Iceland has reduced its energy costs by 10%, with an expected pay-back period on the investment of two years or fewer.

The system allows Iceland to manage its heating, ventilation, air conditioning and refrigeration (HVACR) and other building services across multiple sites through a single central system.

The retailer can control the energy use of its sites during off-peak and non-trading hours, said the installer Airedale International Air Conditioning.

Graham Ireland, Project Manager, Iceland said: “We can add in multiple time functions and know instantly, by checking the easy-to-read display, exactly what the controller is doing.”

Iceland bagged the Carbon Trust award for cutting its emissions by 15% in 2010.