If you have an economy 7 meter make sure you tick the economy 7 meter box on the sign up page and we’ll find you the right tariff. Not sure if you have an economy 7 meter? Economy 7 meters charge two different rates depending on the time, so energy usage is cheaper at night and slightly more in the day. The best way to find out is to check a recent electricity bill for two seperate rates, one for day and night rate, sometimes called peak and off-peak. If you have an economy 7 meter but want to be switched to a single rate fixed tariff you will need to contact your current supplier, some suppliers will not switch you to a single rate tariff if you have an economy 7 meter.