Exhibit 99.1

ATLANTICA YIELD PLC

Annual General Meeting of Shareholders

May 11, 2018

Final Report of the Inspector of Election

I, the undersigned, the duly appointed Inspector of Election at the Annual General Meeting of Shareholders (the “Meeting”) of Atlantica Yield plc (the “Company”), held on May 11, 2018 hereby

certify that:

1) Before entering upon the discharge of my duties as Inspector of Election at the Meeting, I took and signed an Oath of Inspector of Election.

2) The Meeting was held at the Hilton London Syon Park Hotel, Syon Park, Brentford, Middlesex TW8 IJF, United Kingdom, pursuant to notice duly given.

3) At 1.30 p.m. of May 9, 2018, the record date for the determination of shareholders entitled to vote at the Meeting, there were shares of the Company’s Common Stock, each share being entitled to one vote, constituting all of the outstanding voting securities of the Company.

4) At the Meeting, the holders of 80,350,033 shares of the Company’s Common Stock were represented in person, constituting a quorum.

5) The undersigned canvassed the votes of the shareholders cast by ballot or proxy on the matters presented at the Meeting.

6) At the Meeting, the vote on a resolution to receive the accounts and reports of the directors and auditors for the year ended 31 December 2017, was as follows:

FOR		AGAINST		VOTE WITHHELD		BROKER NON-VOTE
79,463,415		3,393		883,225		0

7) At the Meeting, the vote to approve the directors' remuneration report, excluding the directors' remuneration policy, for the year ended 31 December 2017, was as follows:

FOR		AGAINST		VOTE WITHHELD		BROKER NON-VOTE
75,408,187		4,046,390		895,456		0

8) At the Meeting, the vote to reappoint Deloitte LLP and Deloitte S.L. as auditors of the Company until 31 December 2018 and appoint Ernst & Young LLP and Ernst & Young, S.L. from 1st January 2019 until 31 December 2022, was as follows:

FOR		AGAINST		VOTE WITHHELD		BROKER NON-VOTE
79,474,988		3,206		871,839		0

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9) At the Meeting, the vote to authorise the Audit Committee to determine the auditors' remuneration was as follows:

FOR		AGAINST		VOTE WITHHELD		BROKER NON-VOTE
79,486,076		3,566		860,391		0

10) At the Meeting, the vote to elect Ian Edward Robertson as director was as follows:

FOR		AGAINST		VOTE WITHHELD		BROKER NON-VOTE
75,294,014		4,183,992		872,027		0

11) At the Meeting, the vote to elect Christopher Kenneth Jarratt as director was as follows:

FOR		AGAINST		VOTE WITHHELD		BROKER NON-VOTE
75,293,449		4,184,512		872,072		0

12) At the Meeting, the vote to elect Gonzalo Urquijo as director was as follows:

FOR		AGAINST		VOTE WITHHELD		BROKER NON-VOTE
57,455,841		22,022,121		872,071		0

13) At the Meeting, the vote to approve the redemption of the share premium account was as follows:

FOR		AGAINST		VOTE WITHHELD		BROKER NON-VOTE
78,988,666		18,609		1,342,758		0

14) At the Meeting, the vote to approve the amendment of Article 42.1 of the Company Articles of Association was as follows:

FOR		AGAINST		VOTE WITHHELD		BROKER NON-VOTE
79,000,780		449,465		899,788		0

IN WITNESS WHEREOF, I have made this Final Report and have been hereunto set my hand this 11^th day of May 2018.

Inspector of Election

/s/Anthony Carideo

Anthony Carideo

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