Basket, people like you are the type to ask why Yakun charges so much for half boiled eggs. NTUC is $4.50 for a tray of 30 so Yakun should just sell for $0.15 each right...
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Energy Cost (paid to the generation companies).
This component is adjusted quarterly to reflect changes in the cost of fuel and power generation. The fuel cost is the cost of imported natural gas, which is tied to oil prices by commercial contracts. The cost of power generation covers mainly the costs of operating the power stations, such as the manpower and maintenance costs, as well as the capital cost of the stations.'
https://www.spgroup.com.sg/what-we-do/billing