Investor Presentation

Cost of debt increase YoY prompted by US interest environment, but stable ①edp QoQ at 3.1% excl Brazilian real; 1H22 Financial costs benefited by forex MtM Net Financial Costs €m Cost of Debt¹ Brazil EDP excl Brazil €m -4% 434 418 416 385 -2- 49 -16 51% 52% 49% 48% 1H22 Non- 1H22 Interest interest adj. related 1H23 adj. interest Non- 1H23 > Brazil with significant weight ~50% in interest costs: both interest rates and revenues closely indexed to short term interest rates proving net profit inflation hedging 1. Annualized gross interests/Avg Gross Debt 2.7% Avg. Cost of Debt Excl. Brazil 4.5% EUR USD BRL > Cost of debt ex-BRL mostly impacted by USD 3.1% 4.8% Investors' Presentation 27

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