Tram old battery energy storage project

How did modern tramways develop a new energy storage system?

In terms of modern tramways, early alternative solutions involved either onboard traction batteries (typically in the form of Nickel-Metal Hydride cells), or onboard supercapacitors. These technologies established a new form of technology, generally termed ‘Onboard Energy Storage Systems’, or OESS.

Can EV batteries be used as energy storage for tram networks?

This research considers using the EV battery as energy storage for the tram network is a promising option that could lead to better economic feasibility. Still, to provide a more reliable and comprehensive feasibility study for this exploitation, it requires further research on

What does a battery pack do on a tram?

As the sole power source of the tram, the battery pack can supply power to the traction system and absorb the regenerative braking energy during electric braking to recharge the energy storage system. The traction system mainly consists of the inverter, traction motor, gearbox, and axle.

Why are lithium batteries used in energy storage trams?

Compared with the traditional overhead contact grid or third-rail power supply, energy storage trams equipped with lithium batteries have been developed rapidly because of their advantages of flexible railway laying and high regenerative braking energy utilization.

Why are energy storage trams important?

The modern tram system is an essential part of urban public transportation, and it has been developed considerably worldwide in recent years. With the advantages of safety, low cost, and friendliness to the urban landscape, energy storage trams have gradually become an important method to relieve the pressure of public transportation.

How much does a tram battery cost?

There are high costs per tram (about €3,600,000), and service life of a battery supercapacitors pack (around €600,000) is 2,000,000 charge/discharge cycles. Therefore, all batteries need to be substituted on average every 10 years, thus resulting in extremely high maintenance costs;