Enel's Energy Infrastructure Growth and Resilience

Current regulatory framework¹ enel Italy Iberia Brazil Chile Colombia WACC real 5.2% 5.6%³ 12.3% 7.0%4 12.1% pre tax 2022 Next Regulatory Period 20242 2026 2023 2024 2025 Regulatory Period 4+4 Length (years) Metering Ownership 6 5 (Rio) 4 (São Paulo) 4 Owned by DSO Owned by DSO Owned by DSO Owned by users/DSO Owned by users/DSO 5 Smart meter Yes No Yes No5 No inclusion in RAB 12345 1. As of May 2023 2. WACC update in 2025 116 Nominal pre tax. Return rate before taxes for Chile it is an estimation given that the real WACC post-tax will be 6.0%. Chile uses a Price Cap based on VNR (NRC - New Replacement value) Smart meters are not included in the RAB but they will have a regulated remuneration

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