Exhibit 99.1 Pioneer Achieves 51% Year-Over-Year Increase in Revenue, Reaching $40.8 Million Delivers Positive Full-Year Net Income vs. Net Loss in 2022; Backlog Surges to $46 Million; up 36% Sequentially; Expects Continued, Rapid Growth in Revenue, EPS and Operating Margins in 2024; Guides to $52 to $54 Million in Revenue and $0.31 to $0.34 in EPS for Full-Year 2024 FORT LEE, N.J., April 1, 2024 /PRNewswire/ — Pioneer Power Solutions, Inc. (Nasdaq: PPSI) (“Pioneer” or the “Company”), a leader in the design ...