Determining the current tariff

摘要

The tariff periods are defined simply by providing a list of times (to the nearest hour) and the new tariff which becomes active on that hour. You should be able to find the tariff switching times (and indeed the amount charged under each tariff) by referring to your energy provider's website. (Actual amounts charged under each tariff should also be shown on your electricity bill). So, for example, if the Peak tariff is active from 3pm to 9pm and the Shoulder from 7am to 3pm and 9pm to 10pm, you have four tariff changes per day.