LONDON , England ( CNN ) -- The days are getting shorter , the nights colder , but that does n't mean that your electricity bill needs to go through the roof . In a unique experiment , the residents of Britain 's Scilly Isles are hoping to show that reducing your electricity consumption does n't have to be difficult . The Isles of Scilly is switching off power to promote energy efficiency . As part of E-Day , homes , schools and businesses on the Scilly Isles are switching off all non-essential electrical equipment to promote energy saving . The results of the experiment are being posted online in real-time . E-Day organizer , Matt Prescott said : `` The Isles of Scilly are like a miner 's canary for the rest of the UK , because of their vulnerability to sea level rise , to violent storms rolling off the Atlantic and to any major changes in the Gulf Stream . '' The islands , which lie 28 miles off Land 's End , the UK 's most westerly point , are connected to the UK mainland by a single electricity cable which means that power usage in the experiment can be measured efficiently . All of the 2000-strong community who are spread across five islands have been encouraged to join in . The energy savings made will be compared against the previous day 's usage with updates appearing online regularly . The E-Day Web site keeps track of costs and kWh usage providing up-to-the-minute information about how much electricity is being used in island-wide as well as individually monitoring Five Islands School on St Mary 's Island and the electricity consumption of one family . `` We 've fitted the family and the school with special energy monitors so they can accurately monitor what appliances use the most electricity , '' Prescott told CNN . Studies suggest that families who use these sorts of energy monitors can cut their electricity bills by up to 20 percent . At the time of writing , the family 's consumption had dropped dramatically , down 35 percent on the previous day , which Prescott estimates is a saving of around £300 ( $ 475 ) on their annual electricity bill . Sadly the figures for the school and the island as a whole were n't quite so impressive . The school was up six percent on the previous day , while the island as a whole saw a two percent rise in usage . Prescott put these small rises down to the notoriously fickle British weather . `` Yesterday was lovely and sunny , '' he said . `` So far , today it has been rainy . '' The damp and gloom have meant more lights being switched on but despite these meteorological setbacks , Prescott remained upbeat about the success of the experiment . `` Before the family left home this morning they turned off everything they could , so their reduction in usage is a fantastic result , '' he said . Visitors to the the E-Day Web site can also play the '' 5 Things '' game to find out what all sorts of household appliances cost to run and how much they cost you and the environment . `` The E-Day experiment will hopefully prove that the small things can make a big difference , especially when we work together and try to save energy , '' Prescott said . Prescott is also the founder of `` Ban the Bulb '' -- an energy efficiency campaign which is helping phase out the use of incandescent light bulbs in 30 countries . The event has been organized as part of a four-day Earth Summit event which has seen the Isles of Scilly play host to fellow islanders from Samoa , The Galapagos Islands , Madagascar and the Carteret Islands -- whose inhabitants are some of the first people being displaced by rising sea-levels .
UK 's Scilly Isles take part in a day - long event monitoring electricity consumption . Islanders being asked to switch off all non - essential electrical services . Earth Summit Day is the culmination of a three - day long Earth Summit on the planet .