Three core technologies:

First, permanent magnet synchronous traction machine (PMSM), efficiency 92%-96% (traditional asynchronous 75%-85%), gearless, low noise, long life, 40% smaller volume, 50% lighter weight;

Second, energy feedback system (ERS), converts gravitational potential energy, kinetic energy into electrical energy during downward/braking, feeds back to grid for reuse, power saving 20%-30%, annual feedback power 1,200 kWh+ per elevator;

Third, intelligent standby energy saving, automatic power reduction, sleep, group control optimization when unmanned, standby energy consumption reduced by 70%, annual power saving 800 kWh+. Combined effect: comprehensive energy saving 30%-50%, annual power saving 2,500 kWh per elevator, 25,000 kWh in 10 years, carbon reduction 23 tons.


Application and policy: 100% standard PMSM for new elevators, energy feedback penetration 65%; China energy label (E1-E5), EU ErP Directive, US Energy Star mandatory access, E5 highest energy efficiency enjoys subsidies and priority procurement. Green elevators become core indicators for building carbon neutrality, green building certification.