Law No. 83-C / 2013 of 31 December introduced a specific contribution of entities operating in the energy field, called Energy Sector Extraordinary Contribution ("ESEC").

The regime introduced is aimed at financing mechanisms that promote systemic sustainability of the sector through the setting up of a fund with the main objective of reducing the tariff deficit. Are subject to this regime, among others, the entities that are dealers of transport activities or distribution of electricity and natural gas.

The calculation of the amount to be paid in the case of regulated companies is levied on the higher of value of regulated assets and net assets, as of 1 January 2014, on which is applied the rate of 0.85%.

To this end, the Group recognised a liability in the amount of 25,065 thousand Euros (Note 23), against an expense for the year ended 31 December 2014.

The ESEC was settled by REN on 10 February 2015 (Note 37).