Page 218 - Shaping A Sustainable Future

Furthermore, the diesel-hybrid truck can meet the Calculation based on above data:
Euro VI emission standard required by the National
Environment Agency to reduce air pollutants such • Monthly power consumption by Fluorescent lights in
as delicate particulate matter (PM2.5) and nitrogen office = 10.5 X 12 X 30 = 3,780 kWh
oxides (NOx) emission from diesel vehicles. According
to research done by the Union of Concerned Scientists, • Monthly power consumption by lighting (spotlights)
the average carbon footprint of a diesel truck is 4,480 in the warehouse = 20.07 X 12 x 30 = 7,225 kWh
kgCO per year. On the other hand, a diesel-hybrid truck
2
produces approximately 11% fewer carbon emissions • Monthly power consumption by air-conditioner
than a diesel vehicle. This can result in a reduction of system = 90.5 X 12 X 30 = 32,580 kWh
warming emissions of 493 kg CO per year per vehicle.
2
Based on the company’s current fleet of trucks, the After analyzing the power consumption data above,
potential reduction in carbon emission is about 24,650 16% of the total electricity consumption comes from
kgCO per year.
2 the lighting in the warehouse due to the usage of non-
energy saving spotlights. However, the bulk of the total
Power Consumption power consumption (75%) is due to the air-conditioner

system used in the office.
Estimated Power Consumption at Shalom is:
We recommend that the company increase the indoor
• Fluorescent lights in office: office’s air-conditioning temperature from 23 C to 25 C.
0
0
10.5 kW / 21pcs - 12 hours per day Installing a timer to switch them off during the 1-hour
lunch break automatically and after office hours at 5:00
• Lighting (spotlights) in the warehouse: pm will also significantly reduce power consumption.
20.07 kW - 12 hours per day To mitigate the power saving lost from the cooling of
air after 1 hour of lunch break, we propose that the
• Air-conditioner system: company use fans to maintain the room temperature
90.5 kW - 12 hours per day during the break.

• Average Electricity Consumption: 120,000 – Based on the current electricity tariff of 20.97 cents/
140,000 kWh per month (based on 30days). kWh, the company could reduce its air-conditioning

system power consumption up to 33% by limiting the
• Average Water Consumption: 1,000 litres per usage of the cooling system to 8 hours instead of 12
month. hours a day (8 am-12 pm and 1 pm-5 pm). This could
bring in electricity bill savings of $2,255 per month for
the company.

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