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Home  Environmental Management

AES Tietê’s commitment to protect the environment surpasses the determinations foreseen in
the concession contract. The Company has constantly invested in improvements to processes and
procedures for eliminating or minimizing the impact of its operations on ecosystems as well as
carrying out environmental education activities.

In 2005, AES Brasil Group prepared its Environmental Policy, undertaking a proactive posture in
this area. From now on each company of the Group is responsible for conducting the processes in
which it has more expertise. It is up to AES Tietê to lead this restructuring process due to its
expertise in the area, since it already has a considerable volume of environmental assets.

The synergy of the Group’s companies in 2005 permitted to improve the methodology that
identifies the benefits obtained through reforestation of 8,800 hectares of vegetation along the
borders of the reservoirs belonging to the Bariri, Barra Bonita, Ibitinga, Promissão and
Água Vermelha power plants. This context has made it possible to glimpse the possibility of
entering the international carbon credit market through proposal of a qualified
reforestation project as a Clean Development Mechanism (CDM) under the Kyoto Protocol.
The project foresees the removal of 3 million equivalent tons of carbon monoxide (CO2 eq)
from the atmosphere through the planting of about 16 million seedlings of different
Atlantic Forest native species trees. AES Tietê developed the structure and capacity to produce
1 million seedlings of 80 to 126 different species all these trees per year, which contributes to the
preservation of the biological diversity of the flora. The project is in line with the efforts of the
United Nations within the context of the Global Climate Change Convention.

Another highlight has been the success of the fish farming system that, in 2005, repopulated the
Company’s reservoirs with 2.5 million fish fries. This initiative contributed to the biological
diversity of the rivers’ fauna, which has been leading to a resumption of fishing by number of
families who live along the borders of the Tietê River, the most important river in the
state of São Paulo.
Furthermore, management of environmental processes involves inspection of the perimeters of the
reservoirs, of more than 5,000 km overall length. In each one of our ten power plants, teams
conduct permanent monitoring operations together with authorities who have power to control
and run operations that ensure the environmental preservation of the respective areas, seeking to
avoid and mitigate eventual impacts of any invasions, illegal fishing, irregular building,
deforestation and environmental pollution.