Long-term Climate Strategy and Financial Performance

Current regulatory framework1 enel Italy Iberia Brazil Chile Colombia WACC real pre tax 2022 5.2% 5.6% 3 12.3% 7.0% 4 12.1% Next Regulatory Period 20242 2026 2023 2024 2025 Regulatory Period 4+4 Length (years) Metering 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 Ownership Smart meter Yes No Yes No 5 No inclusion in RAB 1. As of November 2022 2345 2. WACC update in 2025 Nominal pre tax. 97 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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