This preliminary report presents the provisional statistics regarding the behaviour of the Spanish electricity system during 2017. Close of year conducted with estimated data as at 13 December 2017.

This publication annually presents the main statistics prepared by Red Eléctrica de España on the Spanish electricity system.

This report contains the most relevant data regarding the Company's activity during the fiscal year: key figures, significant events, business activities, corporate management, Stock Market evolution and annual accounts.

This publication incorporates the most relevant data regarding those services that are necessary to ensure the quality, reliability and security conditions of the electricity supply. Ancilliary services are understood as the resolution of technical constraints, complementary services and deviation management.

This preliminary report presents the provisional statistics regarding the behavior of the Spanish electricity system during 2016. Close of year conducted with estimated data as at 14 December 2016.

This publication annually presents the main statistics prepared by Red Eléctrica de España on the Spanish electricity system.

This report contains the most relevant data regarding the Company's activity during the fiscal year: key figures, significant events, business activities, corporate management, Stock Market evolution and annual accounts.

This preliminary report presents provisional statistical data regarding the behaviour of the Spanish electricity system in 2015.

In 2014, electricity demand continued the downward trend experienced over recent years. However, it is worth noting that in 2014 the fall was lower than that recorded in 2013, indicating that consumption, unlike in previous years, has shown some signs of recovery. Specifi cally, the demand for electrical energy on the Spanish peninsula (which represents 94.3% of the national total) closed the year at 243,530 GWh, a fi gure 1.2% lower than that registered in 2013. After factoring in the eff ects of the seasonal and working patterns, the demand for electricity, mainly attributable to economic activity, showed a slight decrease of 0.1%, ompared to the fall of 2.2% experienced in 2013.