Page 176 - Shaping A Sustainable Future

Eco-Solutions

Our main objective was to help the company save on by turning off the lights after a set time, rather than the
electricity usage and costs and reduce its environmental lights being turned on for 11 hours a day.
impact from the environmental review.
We will be using the brand new polycrystalline solar
Our first recommended eco-solution is to deploy the use panels stated in the environmental findings (Figure 3).
of solar panels to power the lighting. The use of solar
panels saves electricity and reduce carbon emissions • Amount of power generated by solar panels.
by about 45kg per month. Using a lithium battery and The amount of power generated by the solar panel
an automatic charger to store excess energy further is 265 W.
increases efficiency. The type of solar panels is compared • Total power generated by 24 solar panels:
in Annex C. Peak power 265 W * 24 solar panels = 6360 W
or 6.36 kW the amount of power generated by the
There are three different types of solar panels, solar panels.
Monocrystalline, Polycrystalline and Thin-film. Table 5
shows the comparison of the pros and cons of the solar The company will be installing 24 solar panels near the
panels. windows of the warehouse. The panel dimension is 167
cm x 100 cm x 4 cm.
Solar Panel Type Advantages Disadvantages
Monocrystalline ● High efficiency/ ● Higher costs
performance
● Aesthetics
Polycrystalline ● Low cost ● Lower efficiency/
Performance
Thin-film ● Portable and ● Lowest efficiency/
flexible Performance
● Lightweight
● Aesthetics

Table 5: Comparing the Pros and Cons of the solar panels.

The other recommended eco-solution is the installation
of motion sensors in the toilets and the warehouse. We
recommended the Passive Infrared motion sensor (PIR)
suitable for light and alarm systems. The motion sensor
will detect whenever someone walks into the space and
automatically switch on the light for a set period, for
example, 10 minutes. This will reduce electricity usage Figure 3: Specifications of the solar panel.

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