Sustainability Report ENEVA 2020
9.4
RESOURCE CONSUMPTION
AND ALLOCATION
[GRI 103-1103-2 | 103-3-303 | GRI 103-1 | 103-2 | 103-3-306 | GRI 302-1]
9.4.1 Water and Effluents
[GRI 303-1 | 303-2 | 303-3 | 303-5 | IF-EU-140A.1 | IF-EU-140A.3]
We adopt different guidelines and procedures for natural resource management and waste disposal, in order
to contribute to environmental preservation. In relation to water, our generation assets represent the largest
volume of withdrawal and consumption. Electricity consumption, which is less relevant, is partially supplied by two
photovoltaic plants, which supply energy to the Primary Natural Gas Treatment Station of the Parnaíba Natural
Gas Treatment System (NGTS), aiming to reduce the cost of energy from the local utility and increase the energy
efficiency of our assets. In 2020, 17,681 MWh of electricity was consumed by our assets.
9.4.1.1
Water
In the development of any project, a water availability study is carried out and the water quality is evaluated before any
intervention. We also monitor the quality of the surface and subsurface waters in the areas of influence of our projects,
according to the development phase of each asset. In 2020, we established the corporate procedure for the Management
of Water Resources and Effluents, aimed at the standardization and efficient management of processes, in compliance
with legal requirements and regulations in all operational units. Among other items, the procedure standardizes the
monitoring metrics to measure efficiency in water withdrawal and water consumption by energy generated. From the
consolidation of these indicators, reduction targets can be established and aligned with public policies. In addition, we
require that suppliers with significant water-related impacts present all the documentation required under current
environmental laws - water reduction and reuse practices are highlights when choosing these suppliers.
We use water mostly in our generating units, and in the thermal power plants average consumption may vary according
to the type of cycle and cooling technology used, ambient humidity and temperature, and also the chemical and physical
characteristics of the water withdrawn, with the cooling of the water-steam cycle being the biggest consumer. The main
physical-chemical characteristics are salinity and chlorine and, in the case of E&P, the greatest consumption is in the
drilling of wells
APPENDICES
energy consumption
in 2020
New water withdrawal
Total (ML)
New water withdrawal
by source (ML) 2020
20%
Water for
13,166
13,342
11,227
third parties
29%
Surface
water
New water withdrawal in
generation assets
Intensity (ML/MWh)
1.45
1.49
1.39
2018
2019
2020
47%
Seawater
4%
Reinjection
in a gas well
2018
2019
2020
ABOUT
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MANAGEMENT
ENEVA
FIGHTING
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INTELLECTUAL &
ORGANIZATIONAL
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MANUFACTURED
HUMAN
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SOCIAL &
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FINANCIAL
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APPENDICES
GRI
CONTENT
INDEX
SASB
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INDEX
SUSTAINABILITY REPORT ENEVA 2020
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