VDI established its VDI 4707 standard to clearly assess elevator energy efficiency taking into account factors such as load, speed, frequency of use and travel height-both during travel and standby modes.

An elevator’s energy efficiency is rated using seven different classes from A to G, where A represents the highest energy efficiency and G the lowest energy efficiency. VDI measures energy efficiency based on usage category on a scale from 1 to 5, where 1 represents low-usage elevator and 5 represents high-usage elevator.

Measurements taken on GeN2-Regen installation with standard configurations have the highest efficiency class rating. So when you add it all up-technologically and  environment, the GeN2-Regen elevator    system is clearly at the top of its class.

During the elevator moving down with heavy load or moving up with light load, the reduced potential energy will convert into power energy

The converted power will be recycled and filtered by the regenerative drive, and fed back to internal grid.

Otis has taken its commitment to environment to the next level. This means not only engineering energy-serving products, but also manufacturing them in a way that’s kinder to the environment. Otis France Products and Services have been certified ISO 14 001 since 2012.