Iberdrola : Energy balance Q1 2018

T: + 34 91 784 28 04

IBERDROLA: Net Electricity Production (provisional)

TOTAL GROUP

Onshore wind Offshore wind Hydro Mini-hydro Solar and other

TOTAL

F: + 34 91 784 20 64

407

1%

159

0%

SPAIN

TOTAL

UK

Gas Combined CycleTOTAL

US

Gas Combined Cycle CogenerationTOTAL

MEXICO

TOTAL

BRAZIL

TOTAL

4,467

67% 25% 0% 100%

RoW

Onshore wind Offshore wind Solar and otherTOTAL

IBERDROLA: Installed Capacity (Provisional)

TOTAL GROUP

TOTAL

Q1 2018

MW

100%

SPAIN

TOTAL

Q1 2018

MW

100%UK

Gas Combined CycleTOTAL

4,666

MW

100%

USA

CogenerationTOTAL

7,472

MW

100%

MEXICO

TOTAL

6,427

MW

100%

BRAZIL

TOTAL

0 3,223

MW

100%

RoW

TOTAL

MW

961

100%

LEGAL NOTICE

DISCLAIMER

This document has been prepared by Iberdrola, S.A. in connection with the presentation of financial results of the first quarter of the 2018 fiscal year.

The information and any opinions or statements made in this document have not been verified by independent third parties; therefore, no express or implied warranty is made as to the impartiality, accuracy, completeness or correctness of the information or the opinions or statements expressed herein.

This document contains forward-looking information and statements about Iberdrola, S.A., including financial projections and estimates and their underlying assumptions, statements regarding plans, objectives and expectations with respect to future operations, capital expenditures, synergies, products and services, and statements regarding future performance. Forward-looking statements are statements that are not historical facts and are generally identified by the words "expects," "anticipates," "believes," "intends," "estimates" and similar expressions. Although Iberdrola, S.A. believes that the expectations reflected in such forward-looking statements are reasonable, investors and holders of Iberdrola, S.A. shares are cautioned that forward-looking information and statements are subject to various risks and uncertainties, many of which are difficult to predict and generally beyond the control of Iberdrola, S.A. that could cause actual results and developments to differ materially from those expressed in, or implied or projected by, the forward-looking information and statements. These risks and uncertainties include those discussed or identified in the documents sent by Iberdrola, S.A. to the Spanish Comisión Nacional del Mercado de Valores, which are accessible to the public.

Forward-looking statements are not guarantees of future performance. They have not been reviewed by the auditors of Iberdrola, S.A. You are cautioned not to place undue reliance on the forward-looking statements, which speak only as of the date they were made. All subsequent oral or written forward-looking statements attributable to Iberdrola, S.A. or any of its members, directors, officers, employees or any persons acting on its behalf are expressly qualified in their entirety by the cautionary statement above. All forward-looking statements included herein are based on information available to Iberdrola, S.A. on the date hereof. Except as required by applicable law, Iberdrola, S.A. does not undertake any obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. Neither Iberdrola, S.A. nor its subsidiaries or other companies of the Iberdrola Group or its affiliates assume liability of any kind, whether for negligence or any other reason, for any damage or loss arising from any use of this document or its contents. Neither this document nor any part of it constitutes a contract, nor may it be used for incorporation into or construction of any contract or agreement.

Information in this document about the price at which securities issued by Iberdrola, S.A. have been bought or sold in the past or about the yield on securities issued by Iberdrola, S.A. cannot be relied upon as a guide to future performance.

IMPORTANT INFORMATION

This document does not constitute an offer or invitation to purchase or subscribe shares, in accordance with the provisions of (i) the restated text of the Securities Market Law approved by Royal Legislative Decree 4/2015, of 23 October; (ii) Royal Decree-Law 5/2005, of 11 March; (iii) Royal Decree 1310/2005, of 4 November; and (iv) their implementing regulations.

In addition, this document does not constitute an offer of purchase, sale or exchange, nor a request for an offer of purchase, sale or exchange of securities, nor a request for any vote or approval in any other jurisdiction.

The shares of Iberdrola, S.A. may not be offered or sold in the United States of America except pursuant to an effective registration statement under the Securities Act of 1933 or pursuant to a valid exemption from registration. The shares of Iberdrola, S.A. may not be offered or sold in Brazil except under the registration of Iberdrola, S.A. as a foreign issuer of listed securities, and a registration of a public offering of depositary receipts of its shares, pursuant to the Capital Markets Act of 1976 (Federal Law No. 6,385 of December 7, 1976, as further amended), or pursuant to a valid exemption from registration of the offering.

This document and the information presented herein was prepared by Iberdrola, S.A. solely with respect to the consolidated financial results of Iberdrola, S.A. and was prepared and is presented in accordance with the International Financial Reporting Standards ("IFRS"). This document does not contain, and the information presented herein does not constitute, an earnings release or statement of earnings of Avangrid, Inc. ("Avangrid") or Avangrid's financial results. Neither Avangrid nor its subsidiaries assume responsibility for the information presented herein, which was not prepared and is not presented in accordance with United States Generally Accepted Accounting Principles ("U.S. GAAP"), which differs from IFRS in a number of significant respects. IFRS financial results are not indicative of U.S. GAAP financial results and should not be used as an alternative to, or a basis for anticipating or estimating, Avangrid's financial results. For information regarding Avangrid's financial results for the first quarter of the 2018 fiscal year, please see its corporate website atwww.avangrid.com and the Securities and Exchange Commission ("SEC") website atwww.sec.gov.

This document does not contain, and the information presented herein does not constitute, an earnings release or statement of earnings of Neoenergia S.A. ("Neoenergia") or Neoenergia's financial results. Neither Neoenergia nor its subsidiaries assume responsibility for the information presented herein. For information regarding Neoenergia's financial results for the first quarter of the 2018 fiscal year, please see its investor relations website atwww.ri.neoenergia.comand the Brazilian Comissão de Valores Mobiliários ("CVM") website at www.cvm.gov.br.