EDF Energy today re-released its Online Energy tariff. The tariff has previously not been available online, but is now ready for switching on this service. Online Energy version 5 easily ranks as one of the cheapest tariffs available today with EDF stressing that the offer will be available for a short while only to new customers. Online Energy is a dual fuel and online-only offer, and available in select regions. It is not available as an economy 7 tariff. (standard electricity meters only).