Investor Presentaiton

Storage (GWh) Inflows and storage Hydro inflows across FY-22 were well below average. This impacted production volumes and lake storage levels, however Waipori storage remains at average levels for this time of year due to planned outage works. 180 160 140 120 100 80 60 40 20 Trustpower Controlled Storage Deviation from mean (GWh) Monthly inflows for all Manawa Energy hydro schemes 00 80 60 40 20 -20 -40 0 -60 0 Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr Apr-21 May-21 Jun-21 Jul-21 Aug-21 Sep-21 Oct-21 Nov-21 Dec-21 Jan-22 Feb-22 Mar-22 Apr-22 5 to 10% band 10 to 20% band 20 to 80% band 190 to 95% band 80 to 90% band Total Storage Mean Storage Actual Inflows www MANAWA ENERGY

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