IEEE Electrification Magazine - June 2020 - 18

By Phillip J. Ansell and Kiruba S. Haran

Electrified
Airplanes
A path to zero-emission air travel.

GLOBE (©)ISTOCKPHOTO/ADVENTTR

HE AERONAUTICS INDUSTRY HAS BEEN
challenged on many fronts to increase
flight efficiency, reduce greenhouse gas
emissions, and decrease dependence on
traditional hydrocarbon fuels. Each year,
aviation produces more than 900 million metric tons of
CO2, which, without new interventions in policy, technology, and business practices, will further increase alongside
the growing air transport market. Currently, aviation
accounts for 4.8% of U.S. contributions to CO2 emissions,
and the global aviation industry constitutes about 2% of

T

Digital Object Identifier 10.1109/MELE.2020.2985482
Date of current version: 8 June 2020

18

I E E E E l e c t r i f i cati o n M agaz ine / J UN E 2020

all human-induced CO2 emissions. While this contribution may appear to be small when compared to other
sources, it is likely to become more prominent in the years
to come.
Forecasts by the U.S. government and global agencies
have predicted growth in air travel by 4-5% per year. With
the effect of compounding, this growth rate leads to an
approximate doubling of global flight demand every 15
years, which is consistent with previous historical data
(Figure 1). Aside from the sustainable biofuels currently
under development, the air transportation industry does
not have economical and carbon-neutral alternatives for
power and energy as other markets do, such as the renewable energy sources found in ground-based power
2325-5897/20©2020IEEE



IEEE Electrification Magazine - June 2020

Table of Contents for the Digital Edition of IEEE Electrification Magazine - June 2020

Contents
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IEEE Electrification Magazine - June 2020 - Cover2
IEEE Electrification Magazine - June 2020 - Contents
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