As part of the drive to improve energy efficiency and protect the environment, Leeds Library and Information Service has now taken on a stock of energy readers which show how much energy an appliance is using and how much it is costing when it is switched on. It also reveals how much is wasted when devices are left on in standby mode.

The readers can monitor any electrical appliance from washing machines and tumble driers to lighting and heating as well as everyday items like kettles and games consoles.

These monitors can now be borrowed free of charge for a week by all Leeds library members and are available from 22 libraries across the city.

It follows a pilot scheme carried out last year in Otley organised by Leeds City Council, Otley Town Council and SURE (Sustainable and Renewable Energy in Wharfedale).

The pilot produced hugely encouraging results, and if those results are matched by the new readers each home could see a reduction in electricity use of 5 per cent.

Across Leeds this has the potential to save 772,200 kilowatt hours per year which equates to 404 tonnes less carbon dioxide being produced.

The readers encourage consumers to make sure household products such as washing machines and dishwashers are being used with full loads as well as ensuring that devices are switched off properly when they are not in use to save money and energy.

Figures from the Energy Saving Trust show that UK households now spend up to 8 per cent of their electricity bill on standby power, which is taken across the country is equivalent to the annual output from two-and-a-half large power stations.

Leeds City Council executive member for leisure Coun John Procter said: "We are pleased to be able to offer these new energy readers for our library users to try out.

"With these readers you can actually see for yourself how much energy you are using and possibly wasting and what it is costing you."