Energy industry watchdog Ofgem has released its annual Sustainable Development Report, examining amongst other things the impact of smart meters, which measure how much energy appliances in your house are using.

Until now, accurately measuring the amount of water to be boiled in your kettle has been all but impossible. The result? It is estimated that, on average, we boil twice the volume of water needed every time. Which means twice as much energy, twice as much time.

To mark Energy Saving Week, Ekklesia searched to find our top energy saving devices and eco-gadgets for use around the home.