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 February, 2020

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):  ☐

This Report on Form 6-K is incorporated by reference into  the Registration Statement on Form F-3 of the Registrant filed with the Securities and Exchange Commission on August 6, 2018 (File 333-226611).

 Q4 2019 Earnings PresentationFebruary 27, 2020 

 DISCLAIMER  Forward Looking StatementsThis 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 presentation 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. Except as required by law, we do not undertake any obligation to update any forward-looking statements to reflect events or circumstances after the date hereof or to reflect the occurrence of anticipated or unanticipated events or circumstances.Investors should read the section entitled "Item 3D. Key Information—Risk Factors" and the description of our segments and business sectors in the section entitled "Item 4B. Information on the Company—Business Overview", each in our annual report for the fiscal year ended December 31, 2019 filed on Form 20-F, for a more complete discussion of the risks and factors that could affect us.Forward-looking statements include, but are not limited to, statements relating to: expected amounts and payment timelines for investments; business synergies from investments; project growth strategy; accretive investment opportunities; strategic business alternatives to ensure optimal company value; estimated returns and cash available for distribution (“CAFD”) estimates, including from project debt refinancing; projected future CAFD yield; ESG initiative improvement; the quality of our long-term contracts; self-amortizing project debt structure and related debt reduction; the use of non-GAAP measures as a useful predicting tool for investors; the possibility to extend asset life; and various other factors, including those factors discussed under “Item 3.D—Risk Factors” and “Item 5.A—Operating Results” in our Annual Report for the fiscal year ended December 31, 2019 filed on Form 20-F.For the purposes of the announced transactions, CAFD yield is the annual weighted average of CAFD expected to be generated by the investments over their first 5-year period from 2020, or from COD for those assets which are not yet in operation, divided by the expected acquisition price. CAFD Yield is an internal estimation subject to a high degree of uncertainty and our ability to reach this expected CAFD Yield depends on a variety of factors, including closing of the acquisitions on their expected terms, acquired assets performing as expected, acquired assets making cash distributions to the holding level as expected, and assets reaching COD by the expected date. 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 our future results included in our filings with the U.S. Securities and Exchange Commission at www.sec.gov. We undertake no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or developments or otherwise. 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.The CAFD and other guidance included in this presentation are estimates as of February 27, 2020. These estimates are based on assumptions believed to be reasonable as of the date Atlantica published its FY 2019 Financial Results. Atlantica disclaims any current intention to update such guidance, except as required by law.Non-GAAP Financial Information This presentation also includes certain non-GAAP financial measures, including Further Adjusted EBITDA including unconsolidated affiliates, Further Adjusted EBITDA including unconsolidated affiliates as a percentage of revenues (margin) and CAFD. Non-GAAP financial measures are not measurements of our performance or liquidity under IFRS as issued by IASB and should not be considered alternatives to operating profit or profit for the period 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. Please refer to the appendix of this presentation for a reconciliation of the non-GAAP financial measures included in this presentation to the most directly comparable financial measures prepared in accordance with IFRS as well as the reasons why management believes the use of non-GAAP financial measures in this presentation provides useful information.In our discussion of operating results, we have included foreign exchange impacts in our revenue and Further Adjusted EBITDA including unconsolidated affiliates by providing constant currency growth. The constant currency presentation is not a measure recognized under IFRS and excludes the impact of fluctuations in foreign currency exchange rates. We believe providing constant currency information provides valuable supplemental information regarding our results of operations. We calculate constant currency amounts by converting our current period local currency revenue and Further Adjusted EBITDA using the prior period foreign currency average exchange rates and comparing these adjusted amounts to our prior period reported results. This calculation may differ from similarly titled measures used by others and, accordingly, the constant currency presentation is not meant to substitute for recorded amounts presented in conformity with IFRS as issued by the IASB nor should such amounts be considered in isolation. 

 Key Messages    Strong pipeline of potential equity investment opportunitiesOption signed to buy Solana’s tax equity investor; double-digit CAFD yield5 expected from H2’20    Further Adjusted EBITDA including unconsolidated affiliates includes our share in EBITDA of unconsolidated affiliates (see reconciliation on page 29).Comparable to 2018 on a constant currency basis and adjusted for the one-time non-cash gain of $39 million from our purchase of the long-term O&M payable accrued up to December 31, 2017.Calculated with the 2020 mid-point CAFD guidance and the 2019 CAFD. Please see slide 17 for further information on 2020 CAFD guidance.The refinancing of the 2017 NIFA is subject to and conditioned upon successful completion of the issuance of the new Green Senior Secured Notes by Atlantica on terms and conditions acceptable to it. We cannot guarantee that the 2020 Green Private Placement will close as expected or at all.For the purposes of this transaction, CAFD yield is the annual weighted average Cash Available For Distribution expected to be generated by the investment over the first 5-year period divided by the expected acquisition price. Double-digit CAFD yield estimation is subject to the asset achieving certain operating and financial parameters.    Continued solid CAFD growth, meeting guidance once again$190 million CAFD in 2019; +11% year-over-year$50 million CAFD in Q4 2019; +28% year-over-year      2019 Further Adj. EBITDA incl. unconsolidated affiliates1 growth of 3.2% on a comparable basis2      New green bond private placement priced; expect to refinance4 approx. $300 million of corporate debt in April 2020      Q4 Dividend of $0.41 per share, +11% increase vs Q4 2018. Total 2019 declared DPS of $1.61, +16% vs 2018 DPS      2020 CAFD guidance established: >10% growth3 vs 2019   

 Sustainable Infrastructure    1. Financial Results 

       HIGHLIGHTSSolid Operating Results; Strong CAFD Growth  In 2018 Further Adjusted EBITDA incl. unconsolidated affiliates was positively impacted by a one-time non-cash gain of $39 million from our purchase of the long-term O&M payable accrued up to December 31, 2017. See Item 18 (“Financial Statements”) of Form 20-F.Further Adjusted EBITDA including unconsolidated affiliates includes our share in EBITDA of unconsolidated affiliates (see reconciliation on page 29).Further Adjusted EBITDA Margin including unconsolidated affiliates is defined as Further Adjusted EBITDA including unconsolidated affiliates divided by revenue (see reconciliation on page 31).  Full Year   US $ in millions     2019    2018    ∆ Reported    ∆ Excluding FX impact & one-time non-cash gain1 in 12m’18  Revenue    1,011.5    1,043.8    (3.1)%    0.0%  Further Adjusted EBITDA incl. unconsolidated affiliates2    821.6    858.7    (4.3)%    +3.2%   Margin3    81%    82%          CAFD    190.3    171.5    +10.9%     

 WATER    FY 2019  FY 2018  ∆  24.6  23.5  +5%  22.6  22.0  +3%  92%  94%    RENEWABLES  FY 2019  FY 2018  ∆  761.1  793.5  (4)%  604.1  664.4  (9)%  79%  84%    EFFICIENT NATURAL GAS  FY 2019  FY 2018  ∆  122.3  130.8  (7)%  109.2  93.8  +16%  89%  72%    TRANSMISSION  FY 2019  FY 2018  ∆  103.5  96.0  +8%  85.7  78.5  +9%  83%  82%        HIGHLIGHTSPerformance by Sector and Region  By Sector  US $ in millions  Revenue  Further Adjusted EBITDA incl. unconsolidated affiliates1  Margin2  EMEA    NORTH AMERICA    FY 2019  FY 2018  ∆  333.0  357.2  (7)%  307.2  308.8  (0)%  92%  86%    SOUTH AMERICA    FY 2019  FY 2018  ∆  536.3  563.4  (5)%  399.0  449.7  (11)%  74%  80%    By Region  US $ in millions  Revenue  Further Adjusted EBITDA incl. unconsolidated affiliates1  Margin2    Further Adjusted EBITDA including unconsolidated affiliates includes our share in EBITDA of unconsolidated affiliates (see reconciliation on page 29).Further Adjusted EBITDA Margin including unconsolidated affiliates is defined as Further Adjusted EBITDA including unconsolidated affiliates divided by revenue (see reconciliation on page 31).  FY 2019  FY 2018  ∆  142.2  123.2  +15%  115.3  100.2  +15%  81%  81%   

 Includes curtailment in wind assets for which we received compensation.Represents total installed capacity in assets owned at the end of the period, regardless of our percentage of ownership in each of the assets.Electric availability refers to operational MW over contracted MW. Major maintenance overhaul in ACT held in Q1 and Q2 2019, as scheduled, which reduced production and electric availability as per contract. GWh produced in 2019 also includes 30% production from Monterrey since August 2019.Includes 30% share of the investment in Monterrey since August 2, 2019.Availability refers to actual availability divided by contracted availability.  KEY OPERATIONAL METRICSSteady Operational Performance  WATER    RENEWABLES  TRANSMISSION          EFFICIENT NATURAL GAS          FY 2019    FY 2018  Availability5  101.2%    102.0%  Mft3 in operation2  10.5    10.5    FY 2019    FY 2018  GWh produced1  3,236      MW in operation2  1,496    1,496    FY 2019    FY 2018  GWh produced3  2,090      Electric availability3  95.0%    99.8%  MW in operation4  343    300    FY 2019    FY 2018  Availability5  100%    99.9%  Miles in operation  1,166    1,152  3,058  2,318 

 CASH FLOWStable Operating Cash Flow  Further Adjusted EBITDA including unconsolidated affiliates includes our share in EBITDA of unconsolidated affiliates (see reconciliation on page 29).Includes proceeds for $22.2 million and $72.6 million in 2019 and 2018 respectively, related to the amounts received by Solana in relation to the consent with the DOE. Consolidated cash as of December 31, 2019 decreased by $68.7 million vs December 31, 2018 including FX translation differences of $(3.9) million.  Full Year  US $ in millions       2019    2018  Further Adjusted EBITDA incl. unconsolidated affiliates1      821.6    858.7  Share in Further Adjusted EBITDA of unconsolidated affiliates      (10.4)    (8.1)  Net interest and income tax paid      (299.5)    (333.5)  Variations in working capital       (113.4)    (18.3)  Non-monetary adjustments and other      (34.7)    (97.7)  OPERATING CASH FLOW      363.6    401.0                          INVESTING CASH FLOW2      (118.2)    (14.9)  FINANCING CASH FLOW       (310.2)    (405.2)  Net change in consolidated cash3      (64.8)    (19.0) 

 NET DEBT POSITION1  Net debt corresponds to gross debt including accrued interest less cash and cash equivalents.Corporate Net Debt defined as indebtedness where Atlantica Yield Plc is the primary obligor minus cash and cash equivalents held at Atlantica Yield plc. Project Net Debt is defined as indebtedness where one of our subsidiaries is the primary obligor minus cash and cash equivalents held by one of our subsidiaries.Net corporate leverage calculated as corporate net debt divided by 2019 CAFD for the year before corporate debt service.  US $ in millions  As of Dec. 31,2019    As of Dec. 31,2018  Corporate Net Debt2  657.8    577.4  Project Net Debt3  4,355.6    4,566.3      Project net debt reduction  >$200 million   NET DEBTConservative Corporate Leverage        Corporate net debt / CAFD pre corporate debt service4  2.9x     

 Sustainable Infrastructure  2. Strategic Update  Sustainable Infrastructure   

   HIGHLIGHTSAccretive Growth Strategy Update  A Strong Identified Investment Pipeline  Strong pipeline of identified potential investment opportunitiesWe continue to target potential equity growth investments of $200 - $300 million per annum  Accretive Investment: Option to buy Solana’s tax equity investor in 2020  Atlantica’s potential investment expected to be ~ $300M1Double-digit CAFD yield2 from H2’20Strong access to capital sources to fund the investment:>$400 million of corporate liquidity availableBridge debt financing under negotiation, in addition to a potential project debt refinancing in SpainConservative corporate leverage ratio provides flexibility to temporarily increase use of debt in 2020  Final price will depend on the asset production in the 2020-2024 period, since it includes a performance earn-out based on the average annual net production of the asset for the four calendar years with the highest annual net production during the five calendar years of 2020 through 2024.For the purposes of this transaction, CAFD yield is the annual weighted average Cash Available For Distribution expected to be generated by the investment over the first 5-year period divided by the expected acquisition price. Double-digit CAFD yield estimation is subject to the asset achieving certain operating and financial parameters.2017 NIFA refers to the senior secured note facility dated February 10, 2017, of €275 million. The refinancing of the 2017 NIFA is subject to and conditioned upon successful completion of the issuance of the new Green Senior Secured Notes by Atlantica on terms and conditions acceptable to it. We cannot guarantee that the 2020 Green Private Placement will close as expected or at all.    Sustainability, a Key Pillar in Our Strategy  Improved Atlantica’s ESG performance, awareness and ratings in 2019  Increased CAFD from refinancings  Corporate debt: Pricing of private placement; expected to refinance 2017 NIFA2 achieving significant CAFD improvements3 from 2021Project debt: refinanced existing debt in ATN2 with ~$1 million per year CAFD improvement  Financial Optimization    Growth Strategy  ESG Focus 

 FINANCIAL OPTIMIZATIONGreen Bond Priced to Refinance 2017 NIFA1 with Improved Terms  New Green Senior Secured Notes  Issuer  Atlantica Yield Plc  Issuance  Green Senior Secured Notes to be subscribed by institutional investors  Amount  Euro equivalent of $320 million1  Interest  1.96% coupon  Expected Closing & Funding  April 2020  Maturity  6 years  Repayment  Bullet  Use of Proceeds  Expect to repay approx. $302 million of 2017 NIFA. Subject to final closing2    Natural hedge for CAFD generated in Euros  Expected ~$10 million3 improvement per annum starting in 2021  EUR/USD exchange rate of 1.10 used to convert the EUR 290 million 2020 Green Private Placement.The refinancing of the 2017 NIFA is subject to and conditioned upon successful completion of the issuance of the new Green Senior Secured Notes by Atlantica on terms and conditions acceptable to it. We cannot guarantee that the 2020 Green Private Placement will close as expected or at all.Calculated as the difference between the annual cost of the €275 million 2017 NIFA, which is fully hedged with a swap that fixed the interest rate at 5.50%., and the expected annual cost of the new €290 Green Senior Secured Notes, which is expected to bear a cost of 1.96% upon successful completion of the issuance.  ~3 year average tenor extension  Green Bond aligned with 2018 Green Bond Principles (GBP) with a second party opinion from Sustainalytics 

 ESG FOCUSGood Progress on our ESG Commitments  Improved 2019 ESG Ratings  Performance  Rank  Percentile  Renewable Power Production  1 out of 48  1st   Utilities  1 out of 442  1st   Global Universe   58 out of 12,228   1st     Risk score improved versus last year“Negligible risk of experiencing material financial impacts” 1 from ESG factors“Strong management of material ESG issues”1  “Taking Coordinated Action on Climate Issues”1    9.7 ESG Risk Score  “Negligible Risk”1  “B” rating   Improved Atlantica’s ESG Awareness      14%  Reduction of GHG Emissions  14% reduction of GHG emissionsReporting Scope 1, 2 and 34.7 million tons of CO2 emissions avoided2    Signed our first ESG-linked financial guarantee lineNew green bond priced in Q1 2020Launched a Safety App for Atlantica’s employees  According to Sustanalytics ESG Risk Rating Summary Report dated February 12, 2020. For further information please see the report on our website.Calculated taking into account GHG emissions Scope 1 and 2 and energy generation of our power generation assets, both electric and thermal energy. The GHG Equivalences Calculator uses the Avoided Emissions and Generation Tool (AVERT) U.S. national weighted average CO2 marginal emissions rate to convert reductions of Kilowatt-hours into avoided units of carbon dioxide emissions. 

   DIVIDEND +11% DPS Growth   Dividends Declared1 - US $ per share  Quarterly dividends declared by the Board of Directors and paid during the following quarter.         +11%  +16%  Annualized DPS CAGR Achieved  Q4 2019 dividend of $0.41 per share or $1.64 annualizedGrowth of +11% vs Q4 2018  +11%  in the last 12 months  +15%  in the last 24 months      +15% CAGR 

     FY 2020 GUIDANCEInitiating 2020E Guidance      2020E Guidance1  820  Range in $ Millions  870  Further Adjusted EBITDA incl. unconsolidated affiliates  -  Reflects 2020E expectations including full contribution from our Mojave project, for which the off-taker is PG&E. PG&E filed for reorganization under Chapter 11 of the Bankruptcy Code on January 29, 2019, at this point we do not have the certainty that the current contract will be honored by PG&E due to its current situation. It also assumes the closing of the acquisition of Solana tax equity investor in 2020. See “Disclaimer – Forward Looking Statements”. (See reconciliation of 2020E Guidance on page 32).    CAFD   200  225  - 

 Sustainable Infrastructure  3. Appendix   

 ESG Main Performance IndicatorsSustainability, a Key Pillar in Our Strategy  Social KPI’s      2019  2018    Percentage of Women over Total Number of Employees2  % of employees    26%  25%  100 bps increase  Women at Management Level  % of employees    20%  19%  -  Training1  # of hours/employee per year    49  57  -  Employee Performance Review  % of employees    100%  100%  -  Environmental KPI’s      2019  2018  Change  Scope 1 and 2 GHG Emissions  Thousands of tons of CO2e1    1,656  1,956  15% reduction  Scope 3 GHG Emissions  Thousands of tons of CO2e1    719  793  9% reduction  Revenue from Low-carbon Footprint Assets  USD Million    88%  87%  100 bps increase  Health & Safety KPI’s      2019  2018  Change  Total Recordable Incident Rate  # of total accidents in last 12m per 200k worked hours    1.2  1.5  22% reduction  Lost Time Incident Rate  # of accidents with leave in last 12m per 200K worked hours    0.3  0.5  39% reduction                    CO2e stands for carbon dioxide equivalent. Emissions are reported including CO2 and other greenhouse gases, according to the guidelines of the Greenhouse Gas (GHG) Protocol.Proforma 2018 for comparative purposes. It includes the number of employees of the U.S. O&M activities that were internalized in 2019.  

 Strong Portfolio of Assets        Weighted Average Life  Project debt term  20  Represents weighted average years remaining as of December 31, 2019, and includes the acquisitions of new assets closed as of December 31, 2019.   (2) Regulation term in the case of Spain and Chile TL3.(3) Mini-perm structure: semiannually sculpted debt service payments using an underlying tenor of 15 years but with contractual legal maturity in 2028.  (4) Weighted average maturity of the different debt tranches.  3  3    PPAs with predefined prices for ~18 years on average1     Refinancing opportunities could increase CAFD in earlier years    Possibility to extend life in many assets (excluding ATN and ATS)    Tails in most assets after debt amortization  4  4  Year  Contract term2 

 FINANCINGSelf-Amortizing Project Debt Structure  Key principle: non-recourse project financing in ring-fenced subsidiaries100% project debt self-amortizing progressively before the end of the contracted lifeLow interest rate risk, with +90% of interest rates fixed or hedged    >$1.1B planned debt reduction in the next 4 years 

 Includes short-term financial investments. Exchange rates as of December 31, 2019 (EUR/USD = 1.1213) and December 31, 2018 (EUR/USD = 1.1467).Restricted cash is cash which is restricted generally due to requirements of project finance lenders.  US $ in millions2  As of Dec. 31,2019    As of Dec. 31,2018  Corporate cash at Atlantica  66.0    106.7  Existing available revolver capacity  341.0    105.0  Total Corporate Liquidity  407.0    211.7          Cash at project companies1  531.5    603.7   - Restricted3  373.6    375.3   - Other  157.9    228.4  LIQUIDITYStrong Liquidity Position1 

 CORPORATE DEBT DETAILSCorporate Debt as of December 31, 2019  Exchange rates as of December 31, 2019 (EUR/USD = 1.1213).Amounts include principal amounts outstanding and interests to be paid in the short term.Total RCF limit of $425 million: $37.5 million with maturity in 2021 and $387.5 million in 2022.Other facilities include other credit lines and the commercial paper program issued in October 2019.NIFA means Note Issuance Facility Agreement. 2017 NIFA refers to the senior secured note facility dated February 10, 2017, of €275 million. 2019 NIFA refers to the senior secured note facility dated April 30, 2019, of Euro equivalent of $300 million.  US $ in millions1    Maturity    Amounts2  Credit Facilities  (2022 Revolving CF)  20223    81.9    (Other facilities) 4  2020    38.0  2017 NIFA5 (€ denominated)  (Note 1)  2022    101.3    (Note 2)  2023    100.5    (Note 3)  2024    100.5  2019 NIFA5(€ denominated)    2025    301.6  Total        723.8 

   HISTORICAL FINANCIAL REVIEWKey Financials by Quarter      Debt details  Key Financials  US $ in thousands  US $ in millions  (4)  (3)  (4)  Dividends are paid to shareholders in the quarter after they are declared.Ratios presented are the ratios shown on each earnings presentations.  (3) Includes compensation from our preferred equity investment in Brazil ($10.4M).(4) Excludes Solana debt repayments with proceeds received from Abengoa $52.5M in March 2018 and $42.5M in December 2017.      FY 2017    1Q18  2Q18  3Q18  4Q18  FY 2018    1Q19  2Q19  3Q19  4Q19  FY 2019  Revenues     1,008,381     225,265   287,848  323,812  206,897  1,043,822    221,452   283,338  293,373  213,289  1,011,452  F.A. EBITDA margin (%)    78.0%    79.8%  91.5%  83.7%  69.7%  81.5%    81.8%  80.9%  83.4%  75.1%  80.2%  Further Adj. EBITDA incl. unconsolidated affiliates    786,575     179,800   263,458  271,188  144,270  858,717    181,106  229,352  247,668  163,429  821,255  Atlantica’s pro-rata share of EBITDA from unconsolidated affiliates    (7,265)    (1,832)  (2,071)  (2,183)  (2,024)  (8,110)    (2,017)  (2,043)  (3,062)  (3,229)  (10,351)  Further Adjusted EBITDA    779,310     177,968  261,388  269,005  142,246  850,607    179,089  227,309  244,606  160,200  811,204  Dividends from unconsolidated affiliates    3,003     -   -  4,432  -  4,432    -   -  26,945  3,498  30,443  Non-monetary items    (20,882)    (8,839)  (60,629)  (14,755)  (15,056)  (99,279)    (14,632)  (7,729)  (10,288)  (4,783)  (37,432)  Interest and income tax paid    (349,533)    (26,760)  (133,844)  (29,212)  (143,721)  (333,537)    (13,925)  (129,405)  (24,339)  (131,845)  (299,514)  Principal amortization of indebtedness net of new indebtedness at projects    (209,742)    (17,647)  (71,028)  (13,025)  (127,947)  (229,647)    (15,176)  (93,935)  (22,115)  (123,568)  (254,794)  Deposits into/withdrawals from debt service accounts    (28,386)    (21,720)  9,122  (24,388)  6,149  (30,837)    24,935  22,692  (44,216)  (1,692)  1,719  Change in non-restricted cash at project companies    (20,992)    (68,031)  94,448  (92,027)  95,596  29,986    (59,447)  68,101  (53,753)  115,626  70,527  Dividends paid to non-controlling interests    (4,638)    -  (6,787)  (2,958)  -  (9,745)    -  (5,105)  (18,978)  (5,156)  (29,239)  Changes in other assets and liabilities    22,428    8,060  (45,963)  (54,344)  81,815  (10,433)    (55,725)  (32,546)  (52,133)  37,765  (102,639)                                Cash Available For Distribution (CAFD)    170,568     43,031  46,706  42,728  39,082  171,547    45,119  49,382  45,729  50,045  190,275                                Dividends declared1    111,241    32,070   34,074  36,078  37,080  139,302    39,625   40,641  41,657  41,657  163,579  # of shares at the end of the period    100,217,260     100,217,260   100,217,260   100,217,260  100,217,260  100,217,260    100,217,260  101,601,662  101,601,662  101,601,662  101,601,662  DPS (in $ per share)    1.11     0.32  0.34  0.36  0.37  1.39     0.39  0.40  0.41  0.41  1.61  Project debt    5,475.2     5,533.8  5,218.8  5,214.7  5,091.1  5,091.1    5,076.4  4,997.4  4,931.3  4,852.3  4,852.3  Project cash    (520.9)     (604.5)  (504.9)  (609.6)  (524.8)  (524.8)    (546.7)  (469.0)  (568.5)  (496.8)  (496.8)  Net project debt    4,954.3     4,929.3  4,713.9  4,605.1  4,566.3  4,566.3    4,529.6  4,528.4  4,362.8  4,355.6  4,355.6  Corporate debt    643.1     657.3  639.0  641.8  684.1  684.1    697.5  689.6  686.4  723.8  723.8  Corporate cash    (148.5)     (151.4)  (152.3)  (135.1)  (106.7)  (106.7)    (107.9)  (107.0)  (73.2)  (66)  (66)  Net corporate debt    494.6     505.9  486.8  506.7  577.4  577.4    589.7  582.6  613.2  657.8  657.8                                Total net debt    5,448.9     5,435.2  5,200.6  5,111.8  5,143.6  5,143.6    5.119.3  5,111.0  4,976.0  5,013.3  5,013.3  Net Corporate Debt/CAFD pre corporate interests2    2.3x    2.3x  2.2x  2.3x  2.7x  2.7x    2.5x  2.5x  2.7x  2.9x  2.9x 

   HISTORICAL FINANCIAL REVIEWSegment Financials by Quarter          FY 2017    1Q18  2Q18  3Q18  4Q18  FY 2018    1Q19  2Q19  3Q19  4Q 19  FY 2019  by Geography                                  NORTH AMERICA       332,705     61,781   110,534  122,309  62,553  357,177    60,441   104,095  109,378  59,052  332,965   SOUTH AMERICA       120,797     29,536   30,345  31,928  31,405  123,214    33,493  35,597  36,671  36,447  142,207  EMEA       554,879     133,948   146,969  169,576  112,938  563,431    127,518  143,646  147,325  117,790  536,280  by Business Sector                                  RENEWABLES       767,226     167,225   224,988  259,922  141,422  793,557    156,817  223,269  229,742  151,261  761,090  EFFICIENT NAT. GAS       119,784     28,387   33,050  33,918  35,444  130,799    34,009  27,689  31,193  29,390  122,281  TRANSMISSION       95,096     23,840   24,063  24,018  24,076  95,998    24,867  26,231  25,926  26,429  103,453  WATER       26,275     5,813   5,747  5,955  5,954  23,468    5,759  6,149  6,511  6,209  24,629  Total Revenue       1,008,381     225,265  287,848  323,813  206,896  1,043,822    221,452  283,338  293,373  213,289  1,011,452                                        FY 2017    1Q18  2Q18  3Q18  4Q18  FY 2018    1Q19  2Q19  3Q19  4Q19  FY 2019  by Geography                                  NORTH AMERICA       282,328     60,247  94,411  117,498  36,591  308,748    50,870  96,293  108,198  51,881  307,242        84.9%    97.5%  85.4%  96.1%  58.5%  86.4%    84.2%  92.5%  98.9%  88.8%  92.3%   SOUTH AMERICA1       108,766     24,180  25,067  26,987  23,999  100,233    28,212  29,252  30,293  27,589  115,346        90.0%    81.9%  82.6%  84.5%  76.4%  81.3%    84.2%  82.2%  82.6%  75.6%  81.1%  EMEA       395,481     95,373  143,979  126,703  83,681  449,736    102,024  103,807  109,177  83,959  398,968        71.3%    71.2%  98.0%  74.7%  74.1%  79.8%    80.0%  72.3%  74.1%  71.3%  74.4%  by Business Sector                                  RENEWABLES       569,193     131,434  213,952  220,529  98,514  664,429    123,484  177,910  192,168  110,517  604,079        74.2%    78.6%  95.1%  84.8%  69.7%  83.7%    78.7%  79.7%  83.6%  73.1%  79.4%  EFFICIENT NAT. GAS       106,140     23,330  23,652  24,742  22,134  93,858    30,476  23,826  27,983  26,915  109,200        88.6%    82.2%  71,.6%  72.9%  62.4%  71.8%    89.6%  86.1%  89.7%  91.6%  89.3%  TRANSMISSION1       87,695     19,837  20,463  20,148  18,014  78,463    21,650  21,936  21,548  20,524  85,658        92.2%    83.2%  85.0%  83.9%  74.8%  81.7%    87.1%  83.6%  83.1%  77.6%  82.7%  WATER       23,547     5,199  5,392  5,769  5,608  21,967    5,496  5,680  5,969  5,473  22,619        89.6%    89.4%  93.8%  96.9%  94.2%  93.6%    95.4%  92.4%  91.7%  88.1%  91.8%  Total Further Adj. EBITDA incl. unconsolidated affiliates1      786,575     179,800  263,458  271,188  144,270  858,717    181,106  229,352  247,668  163,429  821,556        78.0%    79.8%  91.5%  83.7%  69.7%  82.3%    81.8%  80.9%  82.5%  76.6%  81.2%                US $ in thousands  Revenue  Further Adj. EBITDA incl. unconsolidated affiliates                Further Adjusted EBITDA includes our share in EBITDA of unconsolidated affiliates. Additionally, it includes the dividend from our preferred equity investment in Brazil (or its compensation) of $10.4M in Q1 2017. 

      FY 2017    1Q18  2Q18  3Q18  4Q18  FY 2018    1Q19  2Q19  3Q19  4Q19  FY 2019  RENEWABLES3 (GWh)     3,167     507  939  1,109  504  3,058    581  1,071  1,048  536  3,236   (GWh)     2,372     547  554  613  603  2,318    383  483  615  694  2,090   (electric availability %)     100.5%    97.9%  99.3%  101.3%  100.9%  99.8%    87.1%  89.9%  101.5%  101.4%  95.0%  TRANSMISSION (availability %)     97.9%    100.0%  99.9%  100.0%  99.8%  99.9%    99.9%  100.0%  99.9%  100%  100%  WATER (availability %)     101.8%    99.1%  102.6%  103.7%  102.5%  102.0%    99.8%  100.6%  103.6%  100.1%  101.2%        FY 2017    1Q18  2Q18  3Q18  4Q18  FY 2018    1Q19  2Q19  3Q19  4Q19  FY 2019  RENEWABLES (MW)     1,442     1,446  1,446  1,446  1,496  1,496    1,496  1,496  1,496  1,496  1,496  EFF. NATURAL GAS2 (electric MW)     300     300  300  300  300  300    300  300  343  343  343  TRANSMISSION (Miles)     1,099     1,099  1,099  1,099  1,152  1,152    1,152  1,152  1,152  1,166  1,166  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                  Capacity in operation1(at the end of the period)  Production / Availability  HISTORICAL FINANCIAL REVIEWKey Performance Indicators  5  6  7  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 30% share of the investment in Monterrey since August 2, 2019.Includes curtailment in wind assets for which we receive compensation.Efficient Natural Gas production and availability were impacted by a scheduled major maintenance in Q1 2019 and Q2 2019, which occurs periodically. GWh produced in the third and fourth quarter of 2019 also includes 30% production from Monterrey since August 2019.Electric availability refers to operational MW over contracted MW with PEMEX. Availability refers to actual availability adjusted as per contract.Availability refers to actual availability divided by contracted availability.  EFFICIENT NATURAL GAS4 

       FY 2017    1Q18  2Q18  3Q18  4Q18  FY 2018    1Q19  2Q19  3Q19  4Q19  FY 2019                                    US     27.0%    18.8%  39.9%  38.9%  15.0%  28.2%    15.2%  39.8%  35.2%  16.3%  26.6%   Spain     21.8%    8.8%  20.8%  30.6%  7.3%  16.9%    12.1%  26.7%  27.2%  6.7%  18.2%   Kaxu    24.9%    36.9%  27.6%  29.9%  50.0%  36.0%    48.7%  27.8%  27.5%  45.4%  37.3%                                WIND2 Uruguay     37.0%    31.2%  34.5%  42.3%  40.7%  37.2%    33.0%  36.3%  40.9%  38.0%  37.2%  SOLAR      Historical Capacity Factors1  HISTORICAL FINANCIAL REVIEWCapacity Factors  Capacity factor ratio represents actual electrical energy output over a given period of time to the maximum possible electrical energy output assuming continuous operation at full nameplate capacity over that period. Historical Capacity Factors are 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.Includes curtailment production in wind assets for which we receive compensation.  

 SIZEABLE AND DIVERSIFIED ASSET PORTFOLIOPortfolio Breakdown Based on Estimated CAFD1  CURRENCY2  SECTOR  GEOGRAPHY  Based on CAFD estimates for the 2020-2024 period, including the acquisitions announced. See “Disclaimer – Forward Looking Statements”.Including the effect of currency swap agreements.    of long-term interest rates in projects are fixed or hedged2  ~ 90%  90  Denominatedin USD  %  >  69% Renewable15% Transmission & Transport.13% Efficient Natural Gas 3% Water          45% North America35% Europe12% South America8% RoW         

 AT A GLANCESizeable and Diversified Asset Portfolio  As of December 31, 2019   ASSET  TYPE  STAKE  LOCATION  GROSSCAPACITY  OFFTAKER  RATING 1  YEARS INCONTRACT LEFT  CURRENCY  RENEWABLE ENERGY  Solana    100%2  USA (Arizona)  280 MW  APS  A-/A2/A-  24  USD    Mojave    100%  USA (California)  280 MW  PG&E  D/WR/WD  20  USD    Solaben 2/3    70%  Spain  2x50 MW  Kingdom of Spain  A/Baa1/A-  18/17  EUR 4    Solacor 1/2    87%  Spain  2x50 MW  Kingdom of Spain  A/Baa1/A-  17/17  EUR 4    PS 10/20    100%  Spain  31 MW  Kingdom of Spain  A/Baa1/A-  12/14  EUR 4    Helioenergy 1/2    100%  Spain  2x50 MW  Kingdom of Spain  A/Baa1/A-  17/17  EUR 4    Helios 1/2    100%  Spain  2x50 MW  Kingdom of Spain  A-/Baa1/A-  18/18  EUR 4    Solnova 1/3/4    100%  Spain  3x50 MW  Kingdom of Spain  A/Baa1/A-  15/15/16  EUR 4    Solaben 1/6    100%  Spain  2x50 MW  Kingdom of Spain  A/Baa1/A-  19/19  EUR 4    Seville PV    80%  Spain  1 MW  Kingdom of Spain  A/Baa1/A-  16  EUR    Kaxu    51%  South Africa  100 MW  Eskom  BB/Baa3/BB+3  15  ZAR    Palmatir    100%  Uruguay  50 MW  UTE  BBB/Baa2/BBB-3  14  USD    Cadonal    100%  Uruguay  50 MW  UTE  BBB/Baa2/BBB-3  15  USD    Melowind    100%  Uruguay  50 MW  UTE  BBB/Baa2/BBB-3  16  USD    Mini-Hydro    100%  Peru  4 MW  Peru  BBB+/A3/BBB+  13  USD  EFFICIENT NATURAL GAS  ACT    100%  Mexico  300 MW  Pemex  BBB+/Baa3/BB+  13  USD 5    Monterrey    30%  Mexico  142 MW  Industrial Customers  Not rated  19  USD 5  ELECTRICAL TRANSMISSION  ATN    100%  Peru  379 miles  Peru  BBB+/A3/BBB+  21  USD 5    ATS    100%  Peru  569 miles  Peru  BBB+/A3/BBB+  24  USD 5    ATN 2    100%  Peru  81 miles  Minera Las Bambas  Not rated  13  USD 5    Quadra 1&2    100%  Chile  81 miles  Sierra Gorda  Not rated  15/15  USD 5    Palmucho    100%  Chile  6 miles  Enel Generacion Chile  BBB+/Baa2 /BBB+  18  USD 5    Chile TL3    100%  Chile  50 miles  CNE  A+/A1/A  Regulated  USD 5  WATER  Skikda    34%  Algeria  3.5 Mft3/day  Sonatrach & ADE  Not rated  14  USD 5    Honaine    26%  Algeria  7 Mft3/day  Sonatrach & ADE  Not rated  18  USD 5          Reflects the counterparties’ issuer credit ratings issued by S&P, Moody’s and Fitch, respectively, as of February 27, 2020.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, it refers to the credit rating of the Republic of South Africa, and for Palmatir, Cadonal and Melowind, it refers to the credit rating of Uruguay, as UTE is unrated.Gross cash in euros dollarized through currency hedges.USD denominated but payable in local currency. 

 NON-GAAP FINANCIAL INFORMATIONReconciliation of Non-GAAP Measures  Our management believes Further Adjusted EBITDA including unconsolidated affiliates and CAFD are useful to investors and other users of our financial statements in evaluating our operating performance because it provides them with an additional tool to compare business performance across companies and across periods. Further Adjusted EBITDA is widely used by investors to measure a company’s operating performance without regard to items such as interest expense, taxes, depreciation and amortization, which can vary substantially from company to company depending upon accounting methods and book value of assets, capital structure and the method by which assets were acquired. Our management believes CAFD is a relevant supplemental measure of the Company’s ability to earn and distribute cash returns to investors and is useful to investors in evaluating our operating performance because securities analysts and other interested parties use such calculations as a measure of our ability to make quarterly distributions. In addition, CAFD is used by our management team for determining future acquisitions and managing our growth. Further Adjusted EBITDA and CAFD are widely used by other companies in the same industry. Our management uses Further Adjusted EBITDA and CAFD as measures of operating performance to assist in comparing performance from period to period on a consistent basis. They also readily view operating trends as a measure for planning and forecasting overall expectations, for evaluating actual results against such expectations, and for communicating with our board of directors, shareholders, creditors, analysts and investors concerning our financial performance.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 employed by other companies and they may have limitations as analytical tools. These measures may not be fit for isolated consideration 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. Thus, they should not be considered as alternatives to operating profit, profit for the period, any other performance measures derived in accordance with IFRS as issued by the IASB, any other generally accepted accounting principles or as alternatives to cash flow from operating, investing or financing activities. Some of the limitations of these non-GAAP measures are:they do not reflect our cash expenditures, future requirements for capital expenditures or contractual commitments; they do not reflect changes in, or cash requirements for, our working capital needs;they may not reflect the significant interest expense, or the cash requirements necessary, to service interest or principal payments, on our debts;although depreciation and amortization are non-cash charges, the assets being depreciated and amortized will often need to be replaced in the future and Further Adjusted EBITDA and CAFD do not reflect any cash requirements that would be required for such replacements;some of the exceptional items that we eliminate in calculating Further Adjusted EBITDA reflect cash payments that were made, or will be made in the future; andthe fact that other companies in our industry may calculate Further Adjusted EBITDA and CAFD differently than we do, which limits their usefulness as comparative measures.  

 RECONCILIATIONReconciliation of Cash Available For Distribution and Further Adjusted EBITDA to Profit/(loss) for the period attributable to the Company  (in thousands of U.S. dollars)    For the three-month period ended December 31,          For the twelve-month period ended December 31,           2019     2018      2019     2018                      Profit/(loss) for the period attributable to the Company    $ 1,303     $ (78,916)       $ 62,135    $ 41,596   Profit attributable to non-controlling interest    4,925     3,845      12,473    13,673  Income tax    (16,029)     (16,409)      30,950    42,659   Share of loss/(profit) of associates carried under the equity method    (3,576)     (541)       (7,457)    (5,231)   Financial expense, net    97,711     115,369      402,348    395,213  Operating profit     $ 84,334     $ 23,348       $ 500,449    $ 487,910   Depreciation, amortization, and impairment charges    75,866     (118,898)      310,755    362,697   Further Adjusted EBITDA    $ 160,200     $ 142,246       $ 811,204    $ 850,607   Atlantica’s pro-rata share of EBITDA from unconsolidated affiliates    3,229     2,024       10,351    8,110   Further Adjusted EBITDA including unconsolidated affiliates1    $ 163,429     $ 144,270       $ 821, 555    $ 858,717   Atlantica’s pro-rata share of EBITDA from unconsolidated affiliates    (3,229)     (2,024)      (10,351)    (8,110)  Dividends from equity method investments    3,498    -      30,443    4,432  Non-monetary items    (4,783)     (15,057)      (37,432)    (99,280)  Interest and income tax paid    (131,845)     (143,721)      (299,514)    (333,537)  Principal amortization of indebtedness    (123,568)     (127,947)      (254,794)     (229,647)  Deposits into/ withdrawals from restricted accounts    (1,692)     6,149      1,719    (30,837)  Change in non-restricted cash at project level     115,626      95,596      70,527    29,986  Dividends paid to non-controlling interests    (5,156)     -      (29,239)    (9,745)  Changes in other assets and liabilities    37,765     81,815      (102,639)    (10,433)  Cash Available For Distribution    $ 50,045     $ 39,082      $ 190,275    $ 171,546  Further Adjusted EBITDA including unconsolidated affiliates includes our share in EBITDA of unconsolidated affiliates. 

 RECONCILIATIONReconciliation of Further Adjusted EBITDA including unconsolidated affiliates to Net Cash Provided by Operating Activities  (in thousands of U.S. dollars)    For the three-month period ended December 31,          For the twelve-month period ended December 31,           2019     2018      2019     2018                      Net cash provided by operating activities    $ 42,145     $ 62,710       $ 363,581     $ 401,043   Net interest and income tax paid     131,845     143,721      299,514    333,537  Variations in working capital     (18,699)     (78,676)      113,351    18,354  Other non-cash adjustments and other    4,909     14,491      34,758    97,673  Further Adjusted EBITDA    $ 160,200      $ 142,246      $ 811, 204     $ 850,607  Atlantica’s pro-rata share of EBITDA from unconsolidated affiliates    3,229     2,024      10,351    8,110  Further Adjusted EBITDA including unconsolidated affiliates1    $ 163,429     $ 144,270      $ 821,555    $ 858,717  Further Adjusted EBITDA including unconsolidated affiliates includes our share in EBITDA of unconsolidated affiliates. 

 RECONCILIATIONReconciliation of Further Adjusted EBITDA Margin including unconsolidated affiliates to Operating Profit Margin  (in thousands of U.S. dollars)    For the three-month period ended December 31,        For the twelve-month period ended December 31,           2019    2018    2019     2018                    Revenue    $ 213,289     $ 206,897    $ 1,011,452    $ 1,043,822                    Profit/(loss) for the period attributable to the Company    $ 1,303     $ (78,916)     $ 62,135    $ 41,596   Profit attributable to non-controlling interest    4,925     3,845    12,473    13,673  Income tax    (16,029)     (16,409)    30,950    42,659   Share of loss/(profit) of associates carried under the equity method    (3,576)     (541)     (7,457)    (5,231)   Financial expense, net    97,711     115,369    402,348    395,213  Operating profit    $ 84,334      $ 23,348     $ 500,449    $ 487,910   Operating profit margin    39.5%    11.3%    49.5%     46.7%                    Depreciation, amortization, and impairment charges    35.6%    57.5%    30.7%    34.8%                    Further Adjusted EBITDA margin     75.1%    68.8%    80.2%    81.5%  Atlantica’s pro-rata share of EBITDA from unconsolidated affiliates    1.5%    0.9%    1.0%    0.8%  Further Adjusted EBITDA Margin including unconsolidated affiliates1    76.6%    69.7%    81.2%    82.3%  Further Adjusted EBITDA including unconsolidated affiliates includes our share in EBITDA of unconsolidated affiliates. 

 RECONCILIATIONReconciliation of 2020 Guidance for Further Adjusted EBITDA including unconsolidated affiliates to CAFD   (in millions of U.S. dollars)    Guidance1       2020E        Further Adjusted EBITDA including unconsolidated affiliates    820 – 870  Atlantica Yield’s pro-rata share of EBITDA from unconsolidated affiliates    (12)  Dividends from unconsolidated affiliates    0 – 10  Non-monetary items    (13) – (20)  Interest and income tax paid    (325) – (350)  Principal amortization of indebtedness    (270) – (285)  Changes in other assets and liabilities and change in available cash at project level    0 – 12  Cash Available For Distribution    200 – 225  The forward-looking measures of 2020 Further Adjusted EBITDA and CAFD are non-GAAP measures that cannot be reconciled to the most directly comparable GAAP financial measure without unreasonable effort primarily because of the uncertainties involved in estimating forward looking income tax expense, mark-to-market changes in derivatives, profit attributable to non-controlling interest and Share of loss/(profit) of associates carried under the equity method to arrive at net income and which are subtracted therefrom to arrive to CAFD. 

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