All figures in this analysis are based on conservative assumptions for clarity and consistency. Motor purchase costs were estimated using a Permanent Magnet motor as the baseline at $1,300, with Induction motors assumed to be about 20-30% cheaper, Brushless DC about 15-20% cheaper, and AC Synchronous about 10% cheaper. Downtime estimates were also simplified to monthly averages: Induction motors at roughly 1.3–1.7 hours, Permanent Magnet, BLDC, and AC Synchronous at 0.8–1.3 hours. ROI and payback period formulas are based on efficiency cost differences, monthly savings, and extra costs compared to the PM baseline. These values are intended for comparative modeling only and may vary in real-world conditions.