Page 30 - Towards A Sustainable Future 2024

The team also compared the total electricity usage over seven days and found a significant difference between the control
and Prototype 2 set-up, as shown in Figures 12 and 13. The control set-up consumed around 0.366 kWh, while the Prototype 2
set-up only used up to 0.219 kWh. These results demonstrate that the prototype effectively helps fish owners save electricity,
reducing their electrical bills.

Conclusion

The sunlight simulation eco-solution represents a departure
from the conventional lightbulb set-up BOAT uses. The
sudden switch to full brightness at 0:700 hrs with standard
light bulbs can alarm the fish, triggering their defensive
reflex to hide and potentially causing stress. The purpose
of the sunlight simulation is to address this issue while also
conserving electricity.

Based on the calculations presented in Tables 3 and 4, it can
be concluded that both prototypes (1 and 2) effectively save
electricity. The calculated power saving for the prototype
set-up is 48.33%, with the actual power saving measured Figure 12: Total electricity usage for control set-up
at 40.26% compared to the control set-up. Although there
is an 8.07% deviation between the theoretical and actual
savings, the power reduction achieved using the adjustable
prototype lighting system remains significant.

Overall, the sunlight simulation prototypes offer a promising
solution for reducing electricity consumption and minimising
stress on the fish, contributing to a more sustainable and
efficient aquaculture operation at BOAT. Based on the results
shown in Table 4, we strongly encourage fish owners and
new aquaculture farms planning to set up in Singapore to
consider adopting the Wi-Fi downlight solution. This helps
conserve electricity and reduces stress on the fish, thereby
optimising their health and productivity. Figure 13: Total electricity usage for prototype set-up

Table 4: Summary of savings in costs, electricity consumption and associated CO2 emissions.

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