Meridian Energy monthly operating report for August 2021

Attached is Meridian Energy Limited's monthly operating report for the month of August 2021. Highlights this month include: - In the month to 10 September 2021, national hydro storage increased from 103% to 126% of historical average - South Island storage increased to 139% of average and North Island storage increased to 83% of average by 10 September 2021 - Meridian's August 2021 monthly total inflows were 161% of historical average - Meridian's Waitaki catchment water storage at the end of August 2021 was 136% of historical average - Water storage in Meridian's Waiau catchment was above average at the end of August 2021 - Waitaki snow storage in early September 2021 was 118% of historical average - National electricity demand in August 2021 was 0.3% lower than the same month last year. More stringent lockdowns were in place this August compared to August 2020 - August 2021 was another unseasonably warm month with temperatures above average for almost all the country. Rainfall was mixed, including above average totals in areas of the South Island - Meridian made some calls under the Genesis swaption in August 2021 during the HVDC Pole 2 outage - New Zealand Aluminium Smelter's average load during August 2021 was 570MW - Meridian's New Zealand retail sales volumes in August 2021 were 12.2% higher than August 2020 - Compared to August 2020, segment sales increased in residential +14.2%, small medium business +18.8% and corporate +17.2%. Large business volumes were -10.3% lower and agricultural volumes were -5.0% than August 2020 End CA:00379210 For:MEL Type:MKTUPDTE Time:2021-09-16 08:30:45