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Investor Presentaiton

QUANTA SIGNIFICANT GRID MODERNIZATION AND HARDENING Widespread Need for Grid Modernization and Hardening - Maintenance, Upgrade, Repair and Replacement Representative Utility - Projected Transmission Circuit Miles Replaced/Upgraded and Total Projected Investment REPLACEMENTS/UPGRADES (CIRCUIT MILES) 6,000 50 years 60 years 5,000 Age 70 years 80 years 4,000 3,000 2,000 1,000 ($ in millions) (1) $15,000 $12,500 $10,000 $7,500 $5,000 $2,500 0 $0 1990 1994 1998 2002 2006 2010 2014 2018 1022 2026 2030 2034 2038 2042 J (1) Source: Americans for a Clean Energy Grid, "Planning for the Future", Jan. 2021 INVESTMENT ($MILLION) From 2022- 2042, an aggregate investment of +$240 billion required for this representative utility to replace and upgrade +96,000 circuit miles of transmission line Page 22
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