Investor Presentaiton

Infrastructure & Networks Current regulatory framework in Latin America¹ enel Argentina Brazil Chile Colombia Peru WACC real pre tax 2019 12.5% 12.3% 10.0%² 11.79% 12.0%2 Next Regulatory Period 2022 2023 Nov 2020 2024 Nov 2022 Regulatory Period Length (years) 5 (Rio, Goias) 5 4 (Ceará, São Paulo) 5 4 Metering Ownership Owned by DSO Owned by DSO Owned by users/DSO Owned by users/DSO Owned by users4 Smart meter inclusion in RAB³ February 2020 Yes Yes 1234 1. 2. Return rate before taxes 3. Chile and Peru uses a Price Cap based on VNR (NRC - New Replacement value) Excluding a pilot project approved by the local regulator, involving 10k smart meters, which will be included in Enel assets base from 2021 No No No4 134

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