UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of May, 2017

Commission File Number 001-36487

Atlantica Yield plc

(Exact name of registrant as specified in its charter)

Not applicable

(Translation of registrant’s name into English)

Great West House, GW1, 17th floor,

Great West Road.

Brentford, TW8 9DF,

United Kingdom

Tel: +44 203 499 0465

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

☒ Form 20-F ☐ Form 40-F

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ☐

First Quarter 2017 Earnings PresentationMay 15, 2017

This presentation contains forward-looking statements. These forward-looking statements include, but are not limited to, all statements other than statements of historical facts contained in this presentation, including, without limitation, those regarding our future financial position and results of operations, our strategy, plans, objectives, goals and targets, future developments in the markets in which we operate or are seeking to operate or anticipated regulatory changes in the markets in which we operate or intend to operate. In some cases, you can identify forward-looking statements by terminology such as “aim,” “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “forecast,” “guidance,” “intend,” “is likely to,” “may,” “plan,” “potential,” “predict,” “projected,” “should” or “will” or the negative of such terms or other similar expressions or terminology. By their nature, forward-looking statements involve risks and uncertainties because they relate to events and depend on circumstances that may or may not occur in the future. Forward-looking statements speak only as of the date of this press release and are not guarantees of future performance and are based on numerous assumptions. Our actual results of operations, financial condition and the development of events may differ materially from (and be more negative than) those made in, or suggested by, the forward-looking statements. Many factors could cause the actual results, performance or achievements of the Company to be materially different from any future results, performance or achievements that may be expressed or implied by such forward-looking statements, including, among others: Difficult conditions in the global economy and in the global market and uncertainties in emerging markets where we have international operations; Changes in government regulations providing incentives and subsidies for renewable energy; Political, social and macroeconomic risks relating to the United Kingdom’s potential exit from the European Union; Changes in general economic, political, governmental and business conditions globally and in the countries in which we do business; Decreases in government expenditure budgets, reductions in government subsidies or adverse changes in laws and regulations affecting our businesses and growth plan; Challenges in achieving growth and making acquisitions due to our dividend policy; Inability to identify and/or consummate future acquisitions, whether the Abengoa ROFO Assets or otherwise, on favorable terms or at all; Our ability to identify and reach an agreement with new sponsors or partners similar to the ROFO Agreement with Abengoa; Legal challenges to regulations, subsidies and incentives that support renewable energy sources; extensive governmental regulation in a number of different jurisdictions, including stringent environmental regulation; Increases in the cost of energy and gas, which could increase our operating costs; Counterparty credit risk and failure of counterparties to our offtake agreements to fulfill their obligations; Inability to replace expiring or terminated offtake agreements with similar agreements; New technology or changes in industry standards; Inability to manage exposure to credit, interest rates, foreign currency exchange rates, supply and commodity price risks; Reliance on third-party contractors and suppliers; Risks associated with acquisitions and investments; Deviations from our investment criteria for future acquisitions and investments; Failure to maintain safe work environments; Effects of catastrophes, natural disasters, adverse weather conditions, climate change, unexpected geological or other physical conditions, criminal or terrorist acts or cyber-attacks at one or more of our plants; Insufficient insurance coverage and increases in insurance cost; Litigation and other legal proceedings including claims due to Abengoa’s restructuring process; Reputational risk, including damage to the reputation of Abengoa; The loss of one or more of our executive officers; Failure of information technology on which we rely to run our business; Revocation or termination of our concession agreements or power purchase agreements; Lowering of revenues in Spain that are mainly defined by regulation; Inability to adjust regulated tariffs or fixed-rate arrangements as a result of fluctuations in prices of raw materials, exchange rates, labor and subcontractor costs; Changes to national and international law and policies that support renewable energy resources; Our receipt of dividends from our exchangeable preferred equity investment in ACBH in the context of the ongoing proceedings in ACBH in Brazil; Lack of electric transmission capacity and potential upgrade costs to the electric transmission grid; Disruptions in our operations as a result of our not owning the land on which our assets are located; Risks associated with maintenance, expansion and refurbishment of electric generation facilities; Failure of our assets to perform as expected; Failure to receive dividends from all project and investments; Variations in meteorological conditions; Disruption of the fuel supplies necessary to generate power at our conventional generation facilities; Deterioration in Abengoa’s financial condition and the outcome of Abengoa’s ongoing proceedings under the ongoing restructuring process and the outcome of the ongoing proceedings in ACBH in Brazil; Abengoa’s ability to meet its obligations under our agreements with Abengoa, to comply with past representations, commitments and potential liabilities linked to the time when Abengoa owned the assets, potential clawback of transactions with Abengoa, and other risks related to Abengoa; Failure to meet certain covenants under our financing arrangements; Failure to obtain pending waivers in relation to the minimum ownership by Abengoa and the cross-default provisions contained in some of our project financing agreements; Failure of Abengoa to maintain existing guarantees and letters of credit under the Financial Support Agreement; Failure of Abengoa to complete the restructuring process and comply with its obligations under the agreement reached between Abengoa and us in relation to our preferred equity investment in ACBH; Uncertainty regarding the fair value of the non-contingent credit recognized by Abengoa in the agreement reached between Abengoa and us in relation to our preferred equity investment in ACBH and uncertainty regarding the ability to recover this amount at maturity; Our ability to consummate future acquisitions from Abengoa; Changes in our tax position and greater than expected tax liability; Impact on the stock price of the Company of the sale by Abengoa of its stake in the Company; and Technical failure, design errors or faulty operation of our assets not covered by guarantees or insurance. Furthermore, any dividends are subject to available capital, market conditions, and compliance with associated laws and regulations. These factors should be considered in connection with information regarding risks and uncertainties that may affect Atlantica Yield’s future results included in Atlantica Yield’s filings with the U.S. Securities and Exchange Commission at www.sec.gov. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those described herein as anticipated, believed, estimated, expected or targeted.This presentation includes certain non-GAAP (Generally Accepted Accounting Principles) financial measures which have not been subject to a financial audit for any period. We present non-GAAP financial measures because we believe that they and other similar measures are widely used by certain investors, securities analysts and other interested parties as supplemental measures of performance and liquidity. The non-GAAP financial measures may not be comparable to other similarly titled measures of other companies and have limitations as analytical tools and should not be considered in isolation or as a substitute for analysis of our operating results as reported under IFRS as issued by the IASB. Non-GAAP financial measures and ratios are not measurements of our performance or liquidity under IFRS as issued by the IASB and should not be considered as alternatives to operating profit or profit for the year or any other performance measures derived in accordance with IFRS as issued by the IASB or any other generally accepted accounting principles or as alternatives to cash flow from operating, investing or financing activities.The CAFD and other guidance included in this presentation are estimates as of May 15, 2017. These estimates are based on assumptions believed to be reasonable as of that date. Atlantica Yield plc. disclaims any current intention to update such guidance, except as required by law. DISCLAIMER

Key Messages Strong operating results with Revenue of $198.1M and Further Adjusted EBITDA including unconsolidated affiliates1 of $165.0M in spite of low levels of solar radiation in the US Excellent CAFD2 generation in the quarter reaching $60.9M Dividend of $0.25 per share declared by the Board of Directors Operational performance largely in line with expectations Further Adjusted EBITDA including unconsolidated affiliates includes our share in EBITDA of unconsolidated and the dividend from our preferred equity investment in Brazil or its compensation (see reconciliation on page 18).CAFD includes $10.4 million of ACBH dividend compensation in the three-month period ended March 31, 2017.

1. Financial Results 2. Q&A AGENDA Appendix

1. Financial Results

Q1 2016 206.4 154.9 75% 18.7 ∆ (4%) +7% HIGHLIGHTSExcellent CAFD Generation in the Quarter with Good Operating Results Revenue Further Adjusted EBITDA incl. unconsolidated affiliates1 Margin Q1 2017 198.1 165.0 83% +225% CAFD 60.9 US $ in millions Further Adjusted EBITDA including unconsolidated affiliates includes our share in EBITDA of unconsolidated and the dividend from our preferred equity investment in Brazil or its compensation (see reconciliation on page 18).CAFD includes $10.4 million of ACBH dividend compensation in the three-month period ended March 31, 2017 and $14.7 million of one-time impact o f a partial refinancing of ATN2 in the three-month period ended March 31, 2016. 2

HIGHLIGHTSSolid Numbers Across All Segments US $ in millions Revenue Further Adjusted EBITDA incl. unconsolidated affiliates1 Q1 2017 61.0 Q1 2016 ∆ 65.2 (7%) 54.8 51.2 7% 137.6 102.6 Revenue Q1 2017 28.5 Q1 2016 ∆ 29.0 (2%) SOUTH AMERICA 33.8 24.1 40% Q1 2017 108.6 Q1 2016 ∆ 112.2 (3%) 76.5 79.6 (4%) Q1 2017 141.2 102.2 Q1 2016 (2%) 0% ∆ 29.8 26.7 Q1 2017 35.2 27.1 Q1 2016 (15%) (1%) ∆ 24.2 30.5 Q1 2017 23.5 19.4 Q1 2016 3% 57% ∆ 6.5 5.3 Q1 2017 6.5 6.2 Q1 2016 0% (16%) ∆ EMEA NORTH AMERICA RENEWABLES CONVENTIONAL TRANSMISSION WATER Further Adjusted EBITDA incl. unconsolidated affiliates1 Margin Margin 90% 79 % 118% 83 % 70% 71 % 75% 72 % 90% 77 % 126% 83 % 81% 95 % US $ in millions Further Adjusted EBITDA including unconsolidated affiliates includes our share in EBITDA of unconsolidated and the dividend from our preferred equity investment in Brazil or its compensation (see reconciliation on page 18).

KEY OPERATIONAL METRICSSolid Overall Operating Performance GWh produced Q1 2017 460 Q1 2016 514 GWh produced Electric availability Q1 2017 591 Q1 2016 529 99.8% 87.5% Availability Q1 2017 Q1 2016 94.4% 99.9% Availability Q1 2017 102.5% Q1 2016 101.5% RENEWABLES TRANSMISSION WATER CONVENTIONAL MW in operation 300 300 Mft3 in operation 10.5 10.5 Miles in operation 1,099 1,099 MW in operation 1,442 1,441 Represents total installed capacity in assets owned at the end of the period, regardless of our percentage of ownership in each of the assets.Includes curtailment in wind assets in Q1 2017 for which we receive compensation.Conventional production and availability were impacted by a scheduled major maintenance in February 2016, which occurs periodically.Electric availability refers to operational MWh over contracted MWh with Pemex. Availability refers to actual availability divided by contracted availability. 1 5 3 5 4 1 2

LIQUIDITYStrong Liquidity US $ in millions Corporate cash at Atlantica Yield 102.0 Cash at project companies - Restricted - Unrestricted STFI2 at project companies 487.4 223.6263.8 As of Mar. 31,2017 84.3 (1) As of March 31, 2017 Abengoa New Money was classified as Current Financial Investments (2) STFI stands for Short Term Financial Investments (restricted). CASH POSITION TOTAL LIQUIDITY Adjusted for New Money sale in early April 122.2 472.6 236.1236.5 As of Dec. 31,2016 79.3 718.6 674.1 Corporate cash Adjusted for New Money sale in early April1 146.9 122.2

(13.9) (36.2) 36.2 CASH FLOWSolid Operating Cash Flow Net change in consolidated cash US $ in millions Q1 2017 Q1 2016 Further Adjusted EBITDA incl. unconsolidated affiliates1 (2.3) (1.1) Share in EBITDA of unconsolidated affiliates Interest and income tax paid Variations in working capital Non monetary adjustments and other INVESTING CASH FLOW FINANCING CASH FLOW 154.9 165.0 (27.6) (26.6) (19.5) (28.7) (21.0) (22.3) (39.7) (58.8) 0.6 (36.2) 45.4 (8.6) Q1 2017Adjusted for New Money sale in early April OPERATING CASH FLOW 86.4 84.5 86.4 Further Adjusted EBITDA including unconsolidated affiliates includes our share in EBITDA of unconsolidated and the dividend from our preferred equity investment in Brazil or its compensation (see reconciliation on page 18).

EBITDA-CAFD RECONCILIATIONExcellent CAFD and Cash Generation in the Quarter ATN2 refinancing CASH GENERATED US $ in millions Q1 2017 Q1 2016 (2.3) (1.1) Share in EBITDA of unconsolidated affiliates Interest and income tax paid Change in other assets and liabilities Principal amortization of indebtedness Further Adjusted EBITDA incl. unconsolidated affiliates1 154.9 165.0 (27.6) (26.6) (13.2) (23.1) (14.3) (21.5) 44.9 88.2 14.9 - Deposits in/withdrawals from restricted accounts (34.2) 7.5 (18.4) (12.0) Non-monetary adjustments Change in non-restricted cash at project companies (41.1) (27.3) CAFD 18.7 60.9 Further Adjusted EBITDA including unconsolidated affiliates includes our share in EBITDA of unconsolidated and the dividend from our preferred equity investment in Brazil or its compensation (see reconciliation on page 18). (2) CAFD includes $10.4 million of ACBH dividend compensation in the three-month period ended March 31, 2017 and $14.7 million of one-time impact o f a partial refinancing of ATN2 in the three-month period ended March 31, 2016. 2

FINANCINGConservative Leverage at Holding Company Level US $ in millions Net corporate debt reported2 565.9 Net project debt2 Net corporate debt / CAFD pre corporate debt service3 4,922.9 As of Mar. 31,2017 2.6x DEBT POSITION 546.0 4,857.9 As of Dec. 31,2016 As of March 31, 2017 Abengoa New Money was classified as Current Financial Investments Net debt corresponds to gross debt including accrued interest less cash and cash equivalents.Based on midpoint CAFD guidance pre corporate debt service for the year 2017. Net corporate debt adjusted for New Money sale in early April1 521.0 546.0

DIVIDENDQuarterly Dividend Quarterly dividend of $0.25 per share approvedWaiver agreement in Kaxu signed in the quarter, covering minimum ownership and past potential cross-defaultsThe Board of Directors decided to remain prudent, maintaining the same dividend as last quarter. Upcoming quarterly dividends expected to continue increasing as final waivers and forbearances are secured

STRATEGIC UPDATE2017 Outlook Maintain strong operating performance Secure pending waivers Maintain conservative corporate leveragewhile monitoring value creation opportunities within our own portfolio Build our growth pipeline 1 2 3 4

STRATEGIC UPDATE2017: Build our Growth Pipeline Current ROFO1 Other Partnerships ROFO or other partnership structures with new partnersFocus on key geographies and technologies Acquisitions from Third Parties Building a pipeline of proprietary dealsStrong competitive advantage thanks to our diversification and local expertise Assets subject to existing ROFO agreements under certain conditions. We cannot guarantee that we will close the purchase of or be offered those assets. 300 MW cogeneration in Mexico20% water project in Texas210 MW solar in ChileOther assets

2. Q&A

Appendix

Q1 2017 Q1 2016 3.4 (2.6) (26.0) (11.8) (3.6) (4.5) (1.9) 103.5 96.3 237.3 77.2 76.8 2.3 1.1 (0.7) 323.4 Q1 2017 RECONCILIATIONReconciliation of Further Adjusted EBITDA including unconsolidated affiliates to Profit/(loss) for the period US $ in millions Profit/(loss) for the period attributable to the Company Profit/(loss) attributable to non-controlling interest Income tax Share of loss/(profit) of associates carried under the equity method Financial expense, net 165.0 154.9 Further Adjusted EBITDAincl. unconsolidated affiliates 75.4 76.7 Operating Profit Depreciation, amortization, and impairment charges Atlantica Yield’s pro-rata share of EBITDA from unconsolidated affiliates Further Adjusted EBITDA 152.6 163.9 - 10.4 Dividend from exchangeable preferred equity investment in ACBH or its compensation

FINANCINGNet Debt Bridge Operating cash flow before interest paid 5,489 5,404 113.0 26.6 Net interest and income taxe paid Operations1 In $ millions MAR 17 DEC 16 Acquisitions Dividends paid Translation differences Accrued interest Other New Money sale 1.8 14.7 33.2 53.7 24.2 44.9 5,444 New Money investment 43.6 MAR 17 Adjusted for New Money sale

HISTORICAL FINANCIAL REVIEWKey Financials by Quarter 3Q14 4Q14 1Q15 2Q15 3Q15 4Q15 FY 2015 1Q16 2Q16 3Q16 4Q16 FY 2016 1Q17 Revenues 99,505 93,380 118,304 190,265 267,345 214,967 790,881 206,376 261,302 295,272 208,847 971,797 198,146 F.A. EBITDA margin (%) 89.7% 87.4% 88.9% 83.9% 81.8% 71.2% 80.5% 75.0% 79.5% 89.5% 69.6% 79.5% 83.3% Further Adj. EBITDA incl. unconsolidated affiliates 89,253 81,598 105,186 159,600 218,650 153,074 636,510 154,879 207,645 264,262 145,326 772,112 165,049 Atlantica Yield’s pro-rata share of EBITDA from unconsolidated affiliates - - (5,477) (1,622) (2,121) (3,071) (12,291) (2,332) (2,193) (2,157) (2,120) (8,802) (1,100) Further Adjusted EBITDA 89,253 81,598 99,709 157,978 216,529 150,003 624,219 152,547 205,452 262,105 143,206 763,310 163,949 Dividends from unconsolidated affiliates - - - - 4,163 254 4,417 - 4,984 - - 4,984 - Non-monetary items (8,631) (9,748) (21,229) (23,741) (21,447) (24,993) (91,410) (18,356) (12,563) (11,508) (16,948) (59,375) (12,025) Interest and income tax paid (15,078) (67,886) (19,291) (113,023) (46,161) (131,759) (310,234) (27,613) (137,371) (27,183) (141,890) (334,057) (26,610) Principal amortization of indebtedness net of new indebtedness at project level (10,058) (11,556) (8,790) (41,873) (38,573) (86,153) (175,389) (14,254) (53,851) (18,792) (95,739) (182,636) (21,522) Deposits into/withdrawals from debt service accounts (10,572) (884) (211) (6,352) (10,090) (183) (16,837) (34,155) 12,291 (43,027) 18,186 (46,705) 7,557 Change in non-restricted cash at project companies (16,748) 29,139 16,255 47,092 (62,285) 71,155 72,217 (41,089) 59,969 (90,385) 112,918 41,413 (27,293) Dividends paid to non-controlling interests - - - - (4,665) (3,642) (8,307) - (5,479) (3,473) - (8,952) - Changes in other assets and liabilities (38) 7,738 (27,944) 24,516 21,105 62,143 79,821 (13,237) (33,824) (13,957) 39,325 (21,694) (23,184) Asset refinancing - - - - - - - 14,893 - - - 14,893 - Cash Available For Distribution (CAFD) 28,127 28,401 38,500 44,595 58,576 36,825 178,496 18,736.. 39,607 53,780 . 59,058 171,181 60,872 Dividends declared1 23,696 20,736 34,074 40,087 43,093 - 117,254 - 29,063 16,335 25,054 70,452 25,054 # of shares at the end of the period 80,000,000 80,000,000 80,000,000 100,217,260 100,217,260 100,217,260 100,217,260 100,217,260 100,217,260 100,217,260 100,217,260 100,217,260 100,217,260 DPS (in $ per share) 0.2962 0.2592 0.3400 0.4000 0.4300 - 1.1700 - 0.2900.. 0.1630 0.2500 0.7030 0.2500 Project debt 2,487.1 3,823.1 3,796.7 5,241.2 6,042.6 5,470.7 5,470.7 5,666.8 5,512.1 5,612.9 5,330.5 5,330.5 5,410.3 Project cash (178.9) (198.8) (182.5) (373.3) (618.9) (469.2) (469.2) (529.4) (469.7) (587.6) (472.6) (472.6) (487.4) Net project debt 2,308.2 3,624.3 3,614.1 4,867.9 5,423.7 5,001.5 5,001.5 5,137.4 5,042.4 5,025.3 4,857.9 4,857.9 4,922.9 Corporate debt - 378.5 376.1 377.1 668.7 664.5 664.5 669.9 666.3 671.6 668.2 668.2 667.9 Corporate cash (86.2) (155.4) (84.9) (154.8) (43.6) (45.5) (45.5) (45.4) (84.9) (85.8) (122.2) (122.2) (102.0) Net corporate debt (86.2) 223.1 291.2 222.3 625.1 619.0 619.0 624.5 581.4 585.8 546.0 546.0 565.9 Total net debt 2,222.0 3,847.4 3,905.3 3,090.2 6,048.8 5,620.5 5,620.5 5,761.9 5,623.8 5,611.2 5,403.8 5,403.8 5,488.8 Net Corporate Debt/CAFD pre corporate interests2 na 2.2x 1.8x 1.3x 2.2x 2.9x 2.9x 2.9x 2.7x 2.7x 2.7x 2.7x 2.6x Dividends are paid to shareholders in the quarter after they are declared;Ratios presented are the ratios shown on each quarter’s earnings presentations;Includes the impact of a one-time partial refinancing of ATN2; Debt details Key Financials US $ in thousands US $ in millions (3) Dividend declared on August 3 2016 is the sum of $0.145 per share corresponding to the first quarter of 2016 and $0.145 per share corresponding to the second quarter of 2016.Includes compensation from our preferred equity investment in Brazil ($21.2M in Q3 2016, $6.8M in Q4 2016 and $10.4M in Q1 2017). (4) (5) (5) (5)

HISTORICAL FINANCIAL REVIEWSegment Financials by Quarter 3Q14 4Q14 1Q15 2Q15 3Q15 4Q15 FY 2015 1Q16 2Q16 3Q16 4Q16 FY 2016 1Q17 by Geography NORTH AMERICA 50,040 48,646 55,943 94,214 109,654 68,328 328,139 65,232 100,617 109,491 61,722 337,061 60,952 SOUTH AMERICA 24,322 23,014 24,405 26,227 29,617 32,231 112,480 29,008 28,973 30,183 30,599 118,763 28,527 EMEA 25,143 21,720 37,956 69,824 128,074 114,408 350,262 112,135 131,712 155,598 116,527 515,973 108,667 by Business Sector RENEWABLES 51,599 40,791 63,680 129,747 204,412 145,173 543,012 141,166 201,246 235,844 146,070 724,326 137,664 CONVENTIONAL 28,073 33,556 31,330 34,009 34,676 38,702 138,717 35,179 30,289 29,452 33,126 128,046 29,800 TRANSMISSION 19,833 19,033 19,159 20,079 22,046 25,109 86,393 23,530 23,383 23,822 24,402 95,137 24,165 WATER - - 4,136 6,429 6,211 5,983 22,759 6,501 6,384 6,154 5,249 24,288 6,517 Total Revenue 99,505 93,380 118,304 190,265 267,345 214,967 790,881 206,376 261,302 295,272 208,848 971,797 198,146 3Q14 4Q14 1Q15 2Q15 3Q15 4Q15 FY 2015 1Q16 2Q16 3Q16 4Q16 FY 2016 1Q17 by Geography NORTH AMERICA 49,014 42,697 50,941 86,356 94,739 47,523 279,559 51,212 89,959 103,049 40,470 284,690 54,753 97.9% 87.8% 91.1% 91.7% 86.4% 69.6% 85.2% 78.5% 89.4% 94.1% 65.6% 84.5% 89.8% SOUTH AMERICA1 24,323 23,399 24,998 26,625 29,171 30,111 110,905 24,062 23,996 45,496 31,046 124,599 33,757 100.0% 101.7% 102.4% 101.5% 98.5% 93.4% 98.6% 82.9% 82.8% 150.7% 101.5% 104.9% 118.3% EMEA 15,916 15,502 29,247 46,619 94,739 75,441 246,046 79,605 93,690 115,718 73,810 362,823 76,539 63.3% 71.4% 77.1% 66.8% 74.0% 65.9% 70.2% 71.0% 71.1% 74.4% 63.3% 70.3% 70.0% by Business Sector RENEWABLES 44,114 33,131 52,760 106,404 162,971 95,022 417,157 102,170 155,253 191,570 89,435 538,427 102,625 85.5% 81.2% 82.9% 82.0% 79.7% 65.5% 76.8% 72.4% 77.1% 81.2% 61.2% 74.3% 74.5% CONVENTIONAL 24,834 28,511 26,961 26,358 26,937 27,415 107,671 27,079 26,655 26,390 26,367 106,492 26,716 88.5% 85.0% 86.1% 77.5% 77.7% 70.8% 77.6% 77.0% 88.0% 89.6% 79.6% 83.2% 89.7% TRANSMISSION1 20,305 19,956 20,529 21,326 22,885 24,307 89,047 19,410 19,948 40,551 24,886 104,795 30,459 102.4% 104.8% 107.2% 106.2% 103.8% 96.8% 103.1% 82.5% 85.3% 170.2% 102.0% 110.2% 126.0% WATER - - 4,936 5,512 5,856 6,331 22,635 6,220 5,789 5,751 4,638 22,398 5,249 119.4% 85.7% 94.3% 105.8% 99.5% 95.7% 90.7% 93.5% 88.3% 92.2% 80.5% Total Further Adj. EBITDA incl. unconsolidated affiliates1 89,253 81,598 105,186 159,600 218,649 153,075 636,510 154,879 207,645 264,262 145,325 772,112 165,049 89.7% 87.4% 88.9% 83.9% 81.8% 71.2% 80.5% 75.0% 79.5% 89.5% 69.6% 79.5% 83.3% US $ in thousands Revenue Further Adj. EBITDA incl. unconsolidated affiliates Further Adjusted EBITDA includes our share in EBITDA of unconsolidated affiliates and the dividend from our preferred equity investment in Brazil or its compensation ($4.6M for each quarter from Q3 2014 until Q3 2015, $21.2M in Q3 2016, $6.8M in Q4 2016 and $10.4M in Q1 2017).

3Q14 4Q14 1Q15 2Q15 3Q15 4Q15 FY 2015 1Q16 2Q16 3Q16 4Q16 FY 2016 1Q17 RENEWABLES (MW) 430 891 991 1,241 1,441 1,441 1,441 1,441 1,441 1,442 1,442 1,442 1,442 CONVENTIONAL (electric MW) 300 300 300 300 300 300 300 300 300 300 300 300 300 TRANSMISSION (Miles) 1,018 1,018 1,018 1,099 1,099 1,099 1,099 1,099 1,099 1,099 1,099 1,099 1,099 WATER (Mft3/day) - - 10.5 10.5 10.5 10.5 10.5 10.5 10.5 10.5 10.5 10.5 10.5 RENEWABLES (GWh) 300 184 319 764 958 495 2,536 514 974 1,098 501 3,087 460(5) (GWh) 640 629 628 616 601 620 2,465 529 621 649 617 2,416 591 (electric availability %) 104.6% 101.0% 101.7% 101.9% 101.7% 101.5% 101.7% 87.5% 102.5% 103.5% 103.3% 99.1% 99.8% TRANSMISSION (availability %) 100.0% 100.0% 99.9% 99.8% 99.3% 100.0% 99.9% 99.9% 99.9% 99.9% 100.0% 100.0% 94.4% WATER (availability %) - - 96.8% 103.2% 101.6% 102.5% 101.5% 101.5% 102.7% 102.9% 100.2% 101.8% 102.5% CONVENTIONAL2 Capacity in operation1(at the end of the period) Production / Availability HISTORICAL FINANCIAL REVIEWKey Performance Indicators Represents total installed capacity in assets owned at the end of the period, regardless of our percentage of ownership in each of the assets.Conventional production and availability were impacted by a periodic scheduled major maintenance in February 2016.Electric availability refers to operational MWh over contracted MWh with Pemex.Availability refers to actual availability divided by contracted availability.Includes curtailment production in wind assets for which we receive compensation. 3 4 4

3Q14 4Q14 1Q15 2Q15 3Q15 4Q15 FY 2015 1Q16 2Q16 3Q16 4Q16 FY 2016 1Q17 US 28.1% 14.4% 14.3% 33.7% 34.5% 17.1% 24.9% 17.3% 36.4% 33.5% 16.0% 25.8% 18.1% Spain 34.3% 8.1% 15.1% 30.6% 31.3% 8.6% 21.0% 9.5% 27.0% 35.4% 9.9% 20.4% 10.0% Kaxu 26.0% 31.1% 29.3%(2) 42.2% 25.8% 33.2% 34.3% 33.9% 15.9% WIND (Uruguay) 42.8% 38.0% 27.3% 34.4% 41.9% 39.3% 35.8% 31.6% 32.2% 35.9% 34.9% 33.7% 27.8%(3) SOLAR Historical Capacity Factors1 HISTORICAL FINANCIAL REVIEWCapacity Factors Historical Capacity Factors calculated from the date of entry into operation or the acquisition of each asset. Some capacity factors are not indicative of a full period of operations.Average capacity factor in Kaxu for 2015 calculated from August 1, 2015. Includes curtailment production in wind assets for which we receive compensation.

STABLE PORTFOLIOLong-Dated Contracts with Credit-Worthy Counterparties LONG-TERM CONTRACTS HIGH QUALITY OFFTAKERS 21 Weighted average years remaining 2 +95 Investment grade offtakers1 LOW DEPENDENCE ON NATURAL RESOURCES3 PRODUCTION-BASED 32% AVAILABILITY-BASED 68% % Based on Moody’s rating. Offtakers for Quadra 1&2, Honaine, Skikda and ATN2 are unrated. Offtaker for ATN and ATS is the Ministry of Energy of the Government of Peru, for Spanish assets is the Government of Spain and for Kaxu is the Republic of South Africa.Represents weighted average years remaining as of December 31, 2016.Based on run-rate CAFD estimations. STRONG CORPORATE STRUCTURE Majority of independent directorsNo IDRsTax efficient structure

SIZEABLE AND DIVERSIFIED ASSET PORTFOLIOPortfolio Breakdown1 CURRENCY2 SECTOR GEOGRAPHY All amounts based on run-rate CAFD estimations and assumes no acquisitions. Including the effect of currency swap agreements. of long term interest rate in projects is fixed or hedged ~ 90% 90 Denominatedin USD % 41% North America40% Europe12% South America7% RoW 73% Renewable17% Conventional 7% Transmission 3% Water +

FINANCINGSustainable Project Debt Profile SELF AMORTIZING DEBT STRUCTURE ASSETS Project debt self-amortizing progressively before the end of the contracted life 100% +90% of interest rates fixed or hedgedSignificant “Tail periods” in a large majority of the projects $5,330 $4,173 +$1.1B reduction in the next 5 years

TAIL PERIODSRemaining Project Life after Debt Amortization PPAs with predefined prices for 21 years on average1 Additionally, “second life” (merchant or additional PPA) after existing PPA in all assets excluding ATN and ATS PPA expiration year Contract term2 Project debt term Year (1) Represents weighted average years remaining as of December 31, 2016.(2) Regulation term in the case of Spain.

US $ in millions 2019 Notes Credit Facility (Tranche A) Maturity 2019 Nominal Amount 255.0 Total 673.0 2018 125.0 CORPORATE DEBT DETAILSCorporate Debt as of March 31, 2017 Note Issuance Facility in Euros (Note 1) (Note 2) (Note 3) 2022 98.0 2023 97.5 2024 97.5 Exchange rates as of March 31, 2017: (EUR/USD = 1.0652)

2017 2018 2019 2020 2021 Thereafter Total NORTH AMERICA 58.3 60.3 70.1 80.2 79.0 1,523.0 1,870.9 SOUTH AMERICA 31.7 23.1 25.4 28.3 31.4 755.3 895.3 EMEA 121.2 125.6 133.6 138.6 150.6 1,894.8 2,564.3 Total 211.2 209.0 229.1 247.1 261.0 4,173.1 5,330.5 US $ in millions PROJECT DEBT Repayment Schedule as of December 31, 2016 2017 2018 2019 2020 2021 Thereafter Total RENEWABLES 157.0 170.7 182.2 190.9 200.9 3,077.4 3,979.1 CONVENTIONAL 27.7 16.8 23.2 30.1 31.4 469.0 598.3 TRANSMISSION 21.5 16.4 18.5 20.6 23.0 611.6 711.5 WATER 5.0 5.1 5.2 5.5 5.7 15.1 41.6 Total 211.2 209.0 229.1 247.1 261.0 4,173.1 5,330.5 Exchange rates as of December 31, 2016: (EUR/USD = 1.0517)

SIZEABLE AND DIVERSIFIED ASSET PORTFOLIO ASSET TYPE STAKE LOCATION GROSSCAPACITY OFFTAKER RATING 1 YEARSCONTRACT LEFT CCV RENEWABLE ENERGY Solana 100% (2) USA (Arizona) 280 MW APS A-/A3/BBB+ 27 USD Mojave 100% USA (California) 280 MW PG&E BBB+/Baa1/A- 23 USD Solaben 2/3 70% Spain 2x50 MW Kingdom of Spain BBB+/Baa2/BBB+ 21/20 USD (4) Solacor 1/2 87% Spain 2x50 MW Kingdom of Spain BBB+/Baa2/BBB+ 20 USD (4) PS 10/20 100% Spain 31 MW Kingdom of Spain BBB+/Baa2/BBB+ 15/17 USD (4) Helioenergy 1/2 100% Spain 2x50 MW Kingdom of Spain BBB+/Baa2/BBB+ 20 USD (4) Helios 1/2 100% Spain 2x50 MW Kingdom of Spain BBB+/Baa2/BBB+ 21 USD (4) Solnova 1/3/4 100% Spain 3x50 MW Kingdom of Spain BBB+/Baa2/BBB+ 18/18/19 USD (4) Solaben 1/6 100% Spain 2x50 MW Kingdom of Spain BBB+/Baa2/BBB+ 22 USD (4) Seville PV 80% Spain 1 MW Kingdom of Spain BBB+/Baa2/BBB+ 19 EUR Kaxu 51% South Africa 100 MW Eskom BB+/Baa2/BB+ (3) 18 ZAR Palmatir 100% Uruguay 50 MW UTE BBB/Baa2/BBB- (3) 17 USD Cadonal 100% Uruguay 50 MW UTE BBB/Baa2/BBB- (3) 18 USD Reflects the counterparty’s issuer credit ratings issued by S&P, Moody’s and Fitch, respectively. Liberty Interactive Corporation holds $300M in Class A membership interests in exchange for a share of the dividends and the taxable loss generated by Solana.For Kaxu is the credit rating of the Republic of South Africa, and for Palmatir and Cadonal it refers to the credit rating of Uruguay, as UTE is unrated. Gross cash in Euros dollarized through a currency swap contract with Abengoa.

SIZEABLE AND DIVERSIFIED ASSET PORTFOLIO (Cont’d) ASSET TYPE STAKE LOCATION GROSSCAPACITY OFFTAKER RATING 1 YEARSCONTRACT LEFT CCY CONVENTIONALPOWER ACT 100% Mexico 300 MW Pemex BBB+/Baa3/BBB+ 16 USD (2) ELECTRICAL TRANSMISSION ATN 100% Peru 362 miles Peru BBB+/A3/BBB+ 24 USD (2) ATS 100% Peru 569 miles Peru BBB+/A3/BBB+ 27 USD (2) ATN 2 100% Peru 81 miles Minera Las Bambas Not rated 16 USD (2) Quadra 1&2 100% Chile 81 miles Sierra Gorda Not rated 18 USD (2) Palmucho 100% Chile 6 miles Enel Generacion Chile BBB+/Baa2/BBB+ 21 USD (2) WATER Skikda 34% Algeria 3.5 Mft3/day Sonatrach & ADE Not rated 17 USD (2) Honaine 26% Algeria 7 Mft3/day Sonatrach & ADE Not rated 21 USD (2) Reflects the counterparty’s issuer credit ratings issued by S&P, Moody’s and Fitch, respectively.USD denominated but payable in local currency.

Great West House, GW1, 17th floor,Great West RoadBrentford TW8 9DFLondon (United Kingdom)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	ATLANTICA YIELD PLC

Date: May 15, 2017	By:	/s/ Santiago Seage
		Name: Santiago Seage
		Title: Chief Executive Officer