Enel Group’s company dedicated to the development and the operations of renewable sources signed an agreement with Enerthi to develop new wind power generation in Mexico.

Thanks to this agreement, Enel Green Power will further increase its position in the promising Mexican renewable energy market characterized by a wind potential of over 10,000 MW1 to be exploited in the coming years.

Rome - Mexico City, November 9th, 2009 - Enel Green Power, a unit of the Enel Group, through its subsidiary Enel Latin America, B.V., today announced a project development agreement with Energías Renovables, Térmica e Hidráulica de México, S.A.(Enerthi) aimed at developing wind power projects in Mexico for a total capacity of up to
1,000 MW.

Through this agreement, Enel Green Power will have exclusive access to wind power projects being developed by Enerthi, as well as the right to acquire these projects once they are fully authorized. The projects are located in the states of Baja California, Zacatecas and Oaxaca with a preliminary capacity for each project ranging between 60 to
200 MW.

The Enel Group’s company entered the Mexican power market in 2007 and operates 3 hydro plants for a total installed capacity of 52 MW.

Thanks to this agreement, Enel will further increase its presence in the promising Mexican renewable energy market thus opening its technological portfolio to the
development of wind power.

About Enel Green Power

Enel Green Power is the Enel Group company dedicated to developing and managing worldwide energy generation from renewable sources in Italy and abroad. It operates
over 4,500 MW in plants relying on run-of-the-river hydro, wind, geothermal, solar and Data from AMDEE (Associacion Mexicana de Energia Eolica)

biomass sources in 14 countries in Europe and the Americas. With over 17 billion kWh produced annually, Enel Green Power is a European leader in the renewables’ sector.

About Enel
Enel is Italy’s largest power company, and Europe’s second listed utility by installed capacity. It is an integrated player which produces, distributes and sells electricity and gas. Further to the acquisition of the Spanish utility Endesa, Enel has now a presence in 23 countries with approximately 95,400 MW of net installed capacity and serves 60.5 million power and gas customers. Listed on the Milan stock exchange since 1999, Enel has the largest number of shareholders of any Italian company, at some 1.2 million retail and institutional investors in 2008. Enel is also the second-largest Italian operator in the
natural gas market, with approximately 2.7 million customers and a 10% market share in terms of volumes.