Investor Presentaiton

Clean Energy Transition Ahead of Plan CLEAN ENERGY GROWTH CARBON TRANSITION EMISSIONS REDUCTIONS Over 400 MW of renewables and storage added, including first utility-scale storage ✓ Established ~3 GW wind and solar pipeline Established Canadian, US and Australian growth teams 1,600 MW of coal generation retired by end of 2021 ✓ 1,660 MW of conversions completed by end of 2021 ✓ Ceased active mining operations by end of 2021 Pioneer gas pipeline completed and sold ✓ CO2 emissions reduced by 61% from 2005 Targeting 75% below 2015 levels by 2026 ✓ ✓ Carbon neutrality by 2050 RENEWABLE CAPACITY (MW) ALBERTA THERMAL CAPACITY (MW) EMISSIONS REDUCTIONS (MM T CO2) 6 +28% 1,878 1,467 3,032 -52% 1,459 41.9 -70% 20.6 12.5 2019 2021 2019 Current 2005 2019 2021 TransAlta

View entire presentation