⚡ Regenerative Traction VFDs (Regenerating 30-40% Braking Energy Back into 480V Grid)

Elevator Regenerative Drive Calculator

Size 4-quadrant active front end (AFE) regenerative VFD elevator motor drives (Otis ReGen / KONE EcoDisc): calculate regenerated electrical energy (capturing 30% to 40% of traction energy during full-car down or empty-car up counterweight braking cycles to feed back clean power into the building 480V grid at IEEE 519 compliant <5% THD), and energy margins.

1. Project & Operating Inputs

Elevator Cars Equipped with Regen Drives (Car Count e.g. 8 High-Rise Cars)

Annual Elevator Energy Consumption (kWh / Car e.g. 35,000 kWh / Car / Yr)

Turnkey AFE Regenerative Drive Retrofit CapEx ($ e.g. $145,000)

Electric Commercial Tariff ($ / kWh e.g. $0.155 / kWh)

2. Financial Breakdown & Yield

ELEVATOR REGEN ENERGY RECOVERY

5-Year Regenerated Power Dollar Savings

Regenerative Drive Retrofit ROI

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost