What is advanced rail energy storage?

Advanced Rail Energy Storage (ARES) uses proven rail technology to harness the power of gravity, providing a utility-scale storage solution at a cost that beats batteries. ARES’ highly efficient electric motors drive mass cars uphill, converting electric power to mechanical potential energy.

Why do we need a railway energy storage system?

_Railway energy storage systems must handle frequeny cycles, high currents, long lifetimes, high efficiency, and minimal costs. The imperative for moving towards a more sustainable world and against climate change and the immense potential for energy savings in electrified railway systems are well-established.

How do Ares shuttle trains work?

During periods where excess energy is available on the grid (Reg-Down), ARES shuttle trains draw electricity from the grid which powers their drive motors to move the trains uphill against the force of gravity—efficiently converting electrical energy into gravitational potential energy.

Can energy storage technologies be integrated into railway systems?

The wide array of available technologies provides a range of options to suit specific applications within the railway domain. This review thoroughly describes the operational mechanisms and distinctive properties of energy storage technologies that can be integrated into railway systems.

What is Ares energy storage?

Over the last decade, ARES has developed, tested and patented rail-based, gravity-powered energy storage technologies. By 4th quarter 2024, we will have our first facility in operation with many more to follow.

How much braking energy does an electrified railway use?

The potential of braking energy in electrified railways typically ranges from 40 % to 45 % of the total energy consumed [, , ]. However, measurements indicate only a 19 % recovery rate . Another solution to improve these numbers is installing energy storage systems (ESSs) on trains or substations [24, 25].