Exhibit 99.1 Generac Reports Third Quarter 2024 Results Return to robust overall sales growth with continued margin expansion; increasing 2024 outlook due to recent major outage events WAUKESHA, WISCONSIN (October 31, 2024) – Generac Holdings Inc. (NYSE: GNRC) ("Generac" or the "Company"), a leading global designer and manufacturer of energy technology solutions and other power products, today reported financial results for its third quarter ended September 30, 2024, and provided an update on its outlook fo ...