The line graph compares how much energy was generated from three sources to supply New York with electricity from 1980 to 2000.
Overall, it is clear that petroleum supplied the most energy. Also, natural gas became a more important source of energy supply than coal during this period.
In 1980, petroleum produced about 360 million kw hours of electricity for New York. This figure then rose to 600 million kw hours in 1985, before falling to around 370 million kw hours in 1990. However, there was then a sharp increase, reaching a peak of over 700 million kw hours at the end of the period. On the other hand, coal declined as an energy source. While the figure rose from 220 million to 300 million kw hours from 1980 to 1985, it then decreased steadily to 200 million kw hours in 1990. The figure then remained stable, declining slightly by the year 2000. In contrast, natural gas generated less than 100 million kw hours of electricity in 1980. Production then rose dramatically, overtaking coal in 1990, and reaching a peak of over 500 million kw hours in 2000.
The line graph compares how much
energy
was generated
from three sources to supply New York with electricity from 1980 to 2000.
Overall
, it is
clear
that petroleum supplied the most
energy
.
Also
, natural gas became a more
important
source of
energy
supply than coal during this period.
In 1980, petroleum produced about 360
million
kw
hours
of electricity for New York. This figure then rose to 600
million
kw
hours
in 1985,
before
falling to around 370
million
kw
hours
in 1990.
However
, there was then a sharp increase, reaching a peak of over 700
million
kw
hours
at the
end
of the period.
On the other hand
, coal declined as an
energy
source. While the figure rose from 220
million
to 300
million
kw
hours
from 1980 to 1985, it then decreased
steadily
to 200
million
kw
hours
in 1990. The figure then remained stable, declining
slightly
by the year 2000.
In contrast
, natural gas generated less than 100
million
kw
hours
of electricity in 1980. Production then rose
dramatically
, overtaking coal in 1990, and reaching a peak of over 500
million
kw
hours
in 2000.