Electric power steering is a system that uses electricity instead of hydraulics. It is rapidly gaining acceptance in the auto community for a variety of reasons, from the amount of power it consumes to the level of precision and capacity for customisation it offers.
Hydraulic power steering systems utilise some of the engine's power to take the load off the driver. This means that while the driver doesn't have to work as hard to steer, the engine also loses power -- up to 10 horsepower in some cases. By using a dedicated electric motor that is powered by the battery, the engine can devote itself wholly to the business of moving the car forward. In terms of direct benefits to the driver, though, electric power steering improves fuel economy -- and with it, the driver's finances.
An electric power steering system is less mechanically complex than a hydraulic system. It has fewer moving parts and does not have any fluid. This means that it is less likely to break and is guaranteed not to leak. In general, the simpler a product is, the more reliable it is, and electric power steering is no exception.
An electric system is more dynamic than a hydraulic system. Not only does it change its behaviour automatically to suit the driving conditions, it can also be adjusted by mechanics to suit your exact specifications. Some people prefer to barely move the steering wheel, while others prefer to "feel the road" by having a steering wheel they have to put more effort into. Electric power steering systems can accommodate both groups with ease.