What does a kilowatt hour look like?

Re:What does a kilowatt hour look like? by mpreda on Thursday September 22, 2016 @07:17PM (#12561137)

1 Wh is about 0.9 kilocalories. So 1kWh is about 100g of butter. The energy expenditure of a human in one day is about 2kWh. 1kWh is about the energy needed to heat 10L of water from 0 deg celsius to 100 deg celsius.

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Re:What does a kilowatt hour look like? by javajosh on Thursday September 22, 2016 @07:50PM (#12561317)

It actually takes some extra energy to move from ice to water, and also some extra energy from water to steam, so your numbers only work out if you are strictly inside the 0-100C range.

It's interesting to realize thought that we programmers are code producing machines that run on roughly 2kWh per day. If we produce 100 lines of code in a day, that's 20Wh per LOC. Not bad, actually.

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Re:What does a kilowatt hour look like? by jfoldager on Friday September 23, 2016 @04:15AM (#12563081)

Water can be 0-100 C, both temperatures included. No need for melting/turning to steam. You could start with 10 L of 0 C ice, but he said water.

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Re:What does a kilowatt hour look like? by basicplus2 on Thursday September 22, 2016 @10:00PM (#12561823)

I like the analogy of a bag of peanuts is equivalent to a teaspoon of petrol (properly aspirated) or a stick of dynamite

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