Time of Use is a tariff that is set by the PUA, according to system load and consumption time and is primarily designed for the industrial and business sectors.

In 2010, approximately 59.3% of the total electricity consumption was consumed at this tariff.

Indeed, certain consumers of IEC pay for their electricity consumption based on their time of use, with a different tariff set by the Electricity Regulator (the PUA-Electricity) for 9 different cluster hours