As I was stuck in a traffic jam today, I turned on the ECO mode just for fun. Then I thought about how would one say ECO mode in Singlish and I came up with this (translation in red).
So there is apparently an initiative (the National Steps Challenge) to get Singaporeans to be healthy and walk around more. The initiative gives people $5 if they can accumulate 750 healthpoints which translates to walking 10,000 steps daily for 19 days.
So I tried to figure out how much energy is generated by a human step and got data from companies trying to use floor pads to harness energy. They estimated that we can get up to 7 watts per step.
Using a more conservative estimate of 2W, the following is the calculations for the amount of energy generated.
19 days x 10,000 steps = 190, 000 steps
190,000 steps x 2 W = 380,000 W or 380 kW
380 kW / (60 x 60) = 0.1056 kWh
Given that electricity in Singapore cost about S$0.203 per kW, the cost of the energy generated is as follows:
0.1056 kWh x S$0.203 = S$0.02
Wow, that is really quite a small amount. All that walking for 19 days and you generate about 2 cents worth of energy.