Alternus Energy Group

Report Publication Announcement • May 1, 2023

Delayed publication of the Solis 2022 annual accounts

Delayed publication of the Solis 2022 annual accounts

International Renewable Independent Power Producer (IPP) Alternus Energy Group Plc (OSE: ALT) ("Alternus") together with its wholly owned subsidiary, Solis Bond Company DAC ("Solis") announces that the publication of the annual accounts of Solis for the financial year 2022 will be delayed as the audit of the accounts by its auditors has not yet been concluded. The delay is caused by the requirement to prepare US GAAP based audits for the group related to the Nasdaq listing process. Those audited financials were published on the Euronext on April 21, 2023. Given the extensive amount of work already completed as part of the overall group audit under the higher PCAOB standards and the subsequent translation of these into IFRS standards for Oslo Bors listing requirements, there is a short delay in filing the Solis IFRS audited results for financial year 2022. Solis expects publication of the Solis audit on or before May 26, 2023.

About Alternus Energy Group Plc

Alternus Energy Group Plc is an international vertically integrated independent power producer (IPP). Headquartered in Ireland, and listed on the Euronext Growth Oslo, the Company develops, installs, owns, and operates midsized utility scale solar parks. The Company also has offices in Rotterdam and the United States. For more information visit www.alternusenergy.com.

Forward Looking Statements: Certain information contained in this letter, including any information on the Company’s plans or future financial or operating performance and other statements that express the Company’s management’s expectations or estimates of future performance, constitute forward-looking statements. When used in this press release, words such as “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “might,” “plan,” “possible,” “potential,” “predict,” “project,” “should,” “would” and similar expressions, as they relate to us or our management team, identify forward-looking statements. Such forward-looking statements are based on the beliefs of management, as well as assumptions made by, and information currently available to, the Company’s management. Such statements are based on a number of estimates and assumptions that are subject to significant business, economic and competitive uncertainties, many of which are beyond the control of the Company. The Company cautions that such forward-looking statements involve known and unknown risks and other factors that may cause the actual financial results, performance or achievements of the Company could differ materially from the Company’s estimated future results, performance or achievements expressed or implied by the forward-looking statements. The Company undertakes no obligation to update these statements for revisions or changes after the date of this release, except as required by law.