WSSD Report FINAL! - OGP

CONTRIBUTING TO SUSTAINABLE DEVELOPMENT
Climate change
tricity for running the plant. The hot gases emitted
from the turbine can then be used to produce hot
water and steam, required to transform raw materials
into consumer products, without consuming other
fuel for that purpose. The overall efficiency of this
process can be twice as high as older approaches,
where oil and gas were burnt to generate steam, and
electricity was bought from outside companies.
Cogeneration units make economic sense, save
energy and reduce carbon emissions.
ExxonMobil is a leader in the installation of
cogeneration, with the ability to generate the equivalent
of 2300 megawatts of electricity. Cogeneration
now meets about 70 per cent of ExxonMobil’s refining
and chemical plant needs. Capacity in place has
reduced carbon dioxide emissions by almost 6
million tonnes a year from what they would otherwise
have been. The energy saved is about
ExxonMobil cogeneration capacity
electricity (megawatts)
2500
2000
1500
1000
500
0
pre 1970 1970-74 1975-79 1980-84 1985-89 1990-94
1995-99
one-fourth of that generated as electricity by all the
wind and solar power facilities worldwide. Another
1000 megawatts of cogeneration is under development,
making ExxonMobil’s ultimate cogeneration
potential even greater.
Cogeneration
technology now
provides almost
70 per cent of
ExxonMobil’s
refinery and
chemical plant
needs, whilst
reducing CO 2
emissions by
almost 6 million
tonnes a year.
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