Relatório de Gestão
40
assure a low energy consumption whenever the equip-
ment is turned off or in standby mode.
• The use of photovoltaic panels that produce renew-
able energy amounted to approx. 11,240 kWh in 2014,
what prevented the emission of 5283 Kg of CO
2
.
• Regarding AVAC equipments (heating, ventilation
and air conditioning), the units are made aware of the
fact that the preset temperature conditions the energy
consumption of the system. In fact, each degree of tem-
perature added, the energy consumption increases by
approx. 7%. Inwhat concerns the equipments, whenever
possible, we company selects appliances with high EER
(Energy Efficient Ratio) or COP (Coefficient of perfor-
mance), inorder to reduce energy consumption. Also, we
favour equipments that use inverter technology. In these
equipments, the operation of the compressor slows
down, instead of stopping. This system allows a better
temperature stabilization, reduced noise, extended
durability of the equipments and a reduction of electric
consumption between 20%and 30%. The insulation of
piping, valves and flanges are being replaced to avoid
thermal deficiencies that could be responsible for an
increase of approx. 10% in electricity consumption.
• Reduction on the tariffs of gas consumption given
the decrease on consumption itself.
• The replacement of electrical appliances with natural
gas ones that have substantially reduced CO
2
emissions
(304 Ton and 158 Ton, respectively).
• The elimination of micro leaks, detected during the
inspections made and that are responsible deviations
in the consumption of this fuel.
Electricity Consumption
2014
2013
2012
Electricity consumption points*
unit
258.00
210.00
210.00
Overall consumption
kWh
29,576,990.00
27,711,696.00
31,060,833.00
Average consumption per point
kWh/store 114,63.00
131,960.00
147, 909.00
Consumption Decrease (same
universe)
KWh
2,697,442.00
2,328,895.00
3,602,476.00
%
8.40
10.80
10.40
Indeed, following the measures implemented, in 2014 we registered a decrease of 13% in the average consump-
tion of electricity per measuring point.
In what concerns gas consumption, we registered an inverse tendency compared to electricity, with an average
increase of approx. 17% per measuring point, in 2014. This effect is due to the already mentioned replacement
of electric appliances with gas equivalent ones, in order to minimise the CO
2
emissions.
Gas Consumption
2014
2013
2012
Gas consumption points*
N.º
136.00
127.00
130.00
Overall consumption
kWh
8,447,958.00
6,762,071.00
7,286,115.00
Average consumption per
point
kWh/store 62,177.00
53,244.00
56,047.00
* consumption points vary annually, due to store openings and closings, equipment changes or the number of units where it was possible
to count this information
* consumption points vary annually, due to store openings and closings, equipment changes or the number of units where it was possible
to count this information
