2021 Investor Day Presentation

Development scenario Frequent builds will be needed just to meet a portion of the CCC's projected system growth Development focus is on finding, consenting and holding options, not the timing of builds. 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 Harapaki 7+ additional projects North Island battery Meridian. 0% 0% 0% 16% 21% 21% 21% 38% 51% 61% 72% 72% 84% 89% 100% Key Investigation Expert Studies & Consent Detailed Design Option on hold 11 MAY 2021 | Construction Source: Meridian 2021 INVESTOR DAY PRESENTATION 58

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