I live in a house shared amongst 10 tenants, including 2 children, aged 12 and 8. We're trying to figure out a fair way to divide electricity/gas/water bills. Specifically, how much less utilities should the children be charged for, and until which age? [more inside]
How much can I save by using off peak electricity in the US? How does this compare to those in Europe? [more inside]
How much money does carelessness and forgetfulness waste? When I forget to turn off lights, how much more am I paying for electricity? [more inside]
How can the energy cost of an electronic device over a span of time be calculated?