Mass Transit - 34

AN AERIAL view of a Burnsdesigned substation.

Burns Engineering

A SUBSTATION designed by
Burns Engineering.

Energy storage

Burns Engineering

Rail Systems Get

Powered Up

Providers of rail traction power solutions are
developing systems that are environmentally friendly
and boost energy efficiency.
By Mischa Wanek-Libman, executive editor

L

IGHT-RAIL AND STREETCAR
systems are growing in the
U.S. Since 2016, there have
been approximately 18 systems that have come online
or been expanded. This rail
resurgence is also propelling
a growing interest in the best

34 |

way to power these lines. Mass
Transit reached out to several companies that provide rail traction
power systems to see where they
see trends developing and how
their solutions are helping transit
providers become more efficient
with their energy consumption.

Mass Transit | MassTransitmag.com | APRIL/MAY 2019

1.2MWh
Energy per day
captured by an
in-field WESS
substation

ABB reports transit agencies are increasingly interested in energy storage as a significant way to become
more energy efficient. The company
offers a wayside energy storage system (WESS) to help them accomplish the task. The battery energy
storage system, or a combination
of batteries and supercapacitors, is
located as part of the traction power substation and captures energy
from braking trains that would otherwise be lost and delivers it back to
trains as they accelerate.
ABB also notes the operational
and economic benefits provided by
WESS including the reduction in
energy consumption from the grid
and associated cost, lower maintenance costs as compared to convention traction power substations, the
ability to address voltage sags from
the grid at a reduced cost between
40 and 70 percent and provides
emergency backup power in the
event of a grid blackout. ABB offers
the reminder that this last benefit
would have been valuable during
the 2003 Northeast Blackout when
WESS could have brought trains to
the next station instead of stranding thousands of transit riders.
In addition, ABB says WESS
gives transit operators the ability
to sell ancillary services back to the
power grid in markets where it is
allowed and has the potential to allow transit operators to participate
in demand response programs.


http://www.MassTransitmag.com

Mass Transit

Table of Contents for the Digital Edition of Mass Transit

Ad Index
Editor's Notebook - Showing, as Well as Telling
People and Places
Transit as a Community Affair
U.S. Bus Fleets Report
Forming Paratransit Partnerships Through Alternative Methods
Rail Systems Get Powered Up
Operating a Self Driving City
Best Practices - Deployment of Hydrogen Fuel Cell Buses
Products - In Focus: Buses and Components
Classifieds
Social Hubs - Transit Post Highlights From Around the Web
Mass Transit - 1
Mass Transit - 2
Mass Transit - 3
Mass Transit - 4
Mass Transit - 5
Mass Transit - Ad Index
Mass Transit - 7
Mass Transit - Editor's Notebook - Showing, as Well as Telling
Mass Transit - 9
Mass Transit - People and Places
Mass Transit - 11
Mass Transit - Transit as a Community Affair
Mass Transit - 13
Mass Transit - 14
Mass Transit - 15
Mass Transit - 16
Mass Transit - 17
Mass Transit - 18
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Mass Transit - 21
Mass Transit - U.S. Bus Fleets Report
Mass Transit - 23
Mass Transit - 24
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Mass Transit - 26
Mass Transit - 27
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Mass Transit - 29
Mass Transit - Forming Paratransit Partnerships Through Alternative Methods
Mass Transit - 31
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Mass Transit - Rail Systems Get Powered Up
Mass Transit - 35
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Mass Transit - Operating a Self Driving City
Mass Transit - 44
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Mass Transit - Best Practices - Deployment of Hydrogen Fuel Cell Buses
Mass Transit - Classifieds
Mass Transit - 49
Mass Transit - Social Hubs - Transit Post Highlights From Around the Web
Mass Transit - 51
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