The principle behind PPM technology is flywheel energy storage. Energy is stored in a flywheel installed in the vehicle - similar to a battery but using simpler, easier to maintain technology. This has two important outcomes:

The first point means that an electric PPM vehicle can take all its energy at the stops, so there is no need for electrification along the line. It also means that if an engine is fitted, it can be much smaller than what would normally be needed to move a vehicle of the same size.

PPM technology is also about making sure that products are engineered to meet the exact needs of their application - keeping vehicles light and easy to maintain and operate.

For more information, have a look at our Technology page.

To see how PPM can improve local transport, see the Community Transport page.

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