The eneGoon is supposed to store enough electricity to power the typical stable of household electronics and appliances ranging from refrigerators to laptop computers for about half of a day.
Per Humphries's analysis: "The eneGoon has a maximum power output is 3.0kVA and it can power appliances up to 200V. That means if you don't need power for the full 12 hours you can turn on more power hungry devices such as an air conditioning system . . . There's no word on pricing yet, but I don't expect this system to be cheap."
Well said, I would only add that the prudence of an investment does not necessarily require something to be "cheap."
One likely application of the eneGoon is storing electricity drawn from the power grid when prices are low and using the stored juice when the price of electricity on the grid is high.
Depending on the delta between the price of electricity stored and the price of electricity avoided by using the stored kilowatts rather than power from the grid, the investment in an eneGoon system could be a slam dunk. In this scenario, the added value of staying online when the grid goes down is like gravy.
