September 9th, 2014 - Abengoa Yield (NASDAQ: ABY), the sustainable total return company that owns a diversified portfolio of contracted assets in the energy and environment sectors, today inaugurated the Chilca - Marcona - Ocoña - Montalvo transmission line of Abengoa Transmisión Sur (ATS). The opening ceremony took place at the Poroma electrical substation in Marcona (Ica) and was attended by Ollanta Humala, President of Peru.

This 500 Kv transmission line covers 569 miles and is the longest in Peru. It connects the regions of Lima, Ica, Arequipa and Moquegua, with two new substations and includes improvements to four other existing substations.

This asset is included in the concessions program that the Government of Peru has implemented under the framework of the Guaranteed Transmission System and is part of the measures carried out by the government to reinforce and extend the National Interconnected Electric System ("SEIN").

The construction of this transmission line, which is key for the Peruvian transmission system particularly in the south region where it will benefit 5 million people, started in March 2012 and ended in January 2014. In addition, in April 2014, ATS successfully closed a long-term project bond issuance for US $432 million. The offering was largely over-subscribed, proving the confidence of international investors in this type of assets and in the Peruvian market. In June, the ATS line was transferred to Abengoa Yield prior to its initial public offering and NASDAQ listing.

About Abengoa Yield

Abengoa Yield is a total return company that owns a diversified portfolio of contracted renewable energy, power generation and electric transmission assets in North America, South America and Europe. We focus on providing a predictable and growing quarterly dividend or yield to our shareholders (www.abengoayield.com).

About Abengoa

Abengoa (MCE: ABG.B/P SM /NASDAQ: ABGB) applies innovative technology solutions for sustainability in the energy and environment sectors, generating electricity from renewable resources, converting biomass into biofuels and producing drinking water from sea water. (www.abengoa.com)

EVP and Chief Financial Officer

Eduard Soler,

E-mail: ir@abengoayield.com

Communication Department

Patricia Malo de Molina Meléndez.

E-mail: communication@abengoa.com

Investor relations Abengoa

Bárbara Zubiría Furest.

Investor relations Abengoa Yield

Leire Pérez

E-mail: ir@abengoayield.com

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