But leaving one of these on standby could be pushing your bills up by around 0.8p in 24 hours, or around £2.92 a year.
This cost could rise significantly if you have an older model as they tend to be less energy efficient.Wi-fi routerOf course, it might not be worth the hassle of turning this off just before you go to bed if you want to wake up to wi-fi the following morning.However, an expert has alsouses 5.2W of energy when it's on standby.ComputerIt costs 0.4p to leave one on for 16 hours, which is just £2.19 over a year.
While it will only save you a small amount, it's always worth making sure that you're not wasting unnecessary cash.You may have an extra fridge to store food or drink for a special occasion, like a summer BBQ.The average fridge uses around 166kWhs of power per year, costing 0.56p an hour.Outdoor security lights
Security lights are an effective way to deter burglars and keeping an eye on who is at your door when it is dark.But oversensitive lighting that turns on too easily can see you pay around £39.42 a year based on 12 hours of usage.The lights can be useful if you are arriving home in the dark and may also make the exterior of your property look nicer.So if you kept them on for 12 hours a day for a whole year, this would cost £48.18.