No one does this on paper, it would be an obvious mistake. We add up in our heads, giving the weight to each factor that we want to give on instinctive attractions and repulsions. We look at the monetary price of something. Acting as independent agents, we tend to throw out considerations of whether it makes energy efficient sense for the whole community. We also very commonly throw out considerations of energy balance.
People buy fossil fuel without a second thought for how it can be replaced.
Throwing out factors of economic importance is no way to run a society. Considerations of using energy as the standard for money do not work, it always ends up making people into psuedo independent agents, the truth of our interdependence gets lost in the competition, and the fixed number on a unit of money cannot follow the way energy really flows with accuracy. A society that could do without the energy expense of printing money, all the accounting that goes on, will be more efficient than one that does all these things, even if they managed to do it accurately, regularly called in all the money and started fresh, matching the amount of money to the amount of available energy, which varies year to year, like starting a new game of Monopoly. There are much more efficient ways to organize things. As an interdependent species, reproduction should not be the private decision of individuals or couples, neither of which are independent of society.