Siemens offers a broad spectrum of highly-efficient products, systems, solutions and services.

Taking the total energy balance of a powertrain into consideration, up to 10% energy can be saved by the use of energy-efficient electric motors.
In particular the speed control of turbomachines and the feeding back of energy represent significant saving potential. By using frequency converters, electrical drives can be operated on a precise, demand-driven basis that’s significantly more cost-efficient. With fans, pumps and compressors, in particular, energy savings can be as high as 60% or in extreme cases even 70%.

In applications with frequent braking cycles, a significant saving effect is achieved by feeding back the energy which is released by braking a motor into the power network or intermediate circuit. Siemens uses this principle especially in drives for rail vehicles, cranes, hoisting devices and conveyors, for example. This reduces energy requirements by around 20 to 25 percent where the savings are highly dependent on the particular application. Siemens’ range of frequency converters is the most comprehensive available and includes both low and high voltage solutions.