FY23 Q1 Performance and Guidance Update

FY23 Q1 Performance and Guidance Update Favourable trading conditions in Q1 FY23, primarily due to higher hydro inflows and thermal generation flexibility have meant that EBITDAF performance in Q1 FY23 was higher than expected. Due to lower thermal generation, carbon emissions declined by 50% relative to Q1 FY22. FY23 EBITDAF guidance has been updated from around $455 million to around $500 million. This remains subject to hydrological conditions, gas availability, and any material adverse events or unforeseeable circumstances. Negotiations for Market Security Options remain ongoing and are not considered in guidance. Genesis' FY23 Q1 Performance Report is attached. ENDS For investor relations enquiries, please contact: Tim McSweeney GM Investor Relations & Market Risk M: 027 200 5548 For media enquiries, please contact: Chris Mirams GM Communications and Media M: 027 246 1221 End CA:00400532 For:GNE Type:MKTUPDTE Time:2022-10-14 08:30:32