Hacker News Reader

It's a little awkward, but it makes sense in the context of determining an energy budget or the daily operating cost on grid power.

Watts are handy if your electricity is priced around 11.4 cents per kWh. If that's the case, 1 Watt continuously = 1 USD per year. (scale up or down to suit your tariff)

(1 watt = 8.76 kWh/yr)

With appliances kWh/day is useful since you count costs in kWh

Well, the thing is you can easily calculate your energy expense or your battery storage, given its calculated in watts/hour.