DECEMBER 2011 - Electrical Business Magazine

Opportunities in
electric vehicles
surge
Photo courtesy Tesla Motors.
There’s no turning back as automakers
drive toward electrification
Gerry Malloy
44 • December 2011 • www.EBMag.com
The auto industry, worldwide, is
charging full speed ahead toward the
electrification of the automobile.
Draconian fuel-economy regulations
that will keep tightening from now until at
least 2025 all but ensure that electrically
driven vehicles will become a significant
part of the product mix in Canada and the
United States, as well as overseas.
Some of those vehicles will be
conventional hybrids, with which we have
become familiar over the past decade.
But, increasingly, they will be plug-in
hybrids (PHEVs) or battery-electric
vehicles (BEVs). And what makes those
vehicles different from anything we’ve
Photo courtesy Mitsubishi.
seen before, in any significant volume,
is that they’ll all need charging from the
electrical grid. A lot of charging.
Which means there’s going to be a real
surge in the need for the installation of
dedicated chargers or, at the very least,
high-voltage circuits. And that need
means new opportunities for electrical
suppliers and contractors at all levels, and
to a multiplicity of customers.
Volt and Leaf are the vanguard
Two highly publicized new vehicles
arriving on the Canadian scene this fall
are at the cutting-edge of this change in
direction. And they preview the type of
infrastructure expansion that will become
necessary over the next decade.
General Motors calls its Chevrolet
Volt an “extended range electric vehicle”
(EREV). In pure technical terms, it is a
series hybrid, in which a small gasoline
engine is used to drive a generator to
keep its batteries charged and power its
electric motor, until the gas tank runs
dry—just like a normal car.
But the batteries can also be charged
by plugging into the grid. Enough so
that the Volt can be driven up to 56 km,
depending on operating conditions, on
battery power alone, before the gasoline
engine ever kicks in. It is possible, then,
that someone commuting less than 56
km/day, round-trip, would never use any