200kjoules of heat must be removed from a gallon of water to cool from 55F to 32F (out of the ground down to pleasant drinking temperature).
Assuming a COP of 2 for your compressor (conservative), that’s 100kjoules or 1/36 of a kWh.
High price for a kWh of electricity is $0.25 in the US. So for your $2 subscription, you can pay for 8kWh per month or enough to cool 288 gallons of water or roughly 9 gallons per day. More than anybody would rightly use.
Not to mention that, in a place like a public park, 55F water is totally fine. It isn’t the coolest most refreshing drink of all time but it’s damn good from a public fountain on a 90F day.
I drink to hydrate anyway. The thing that’s satisfying to me is liquid going in. The temperature’s nice if it’s cool but if it’s cold I can’t drink the water fast.
Sure, but if everyone drinks a half gallon a day (still a lot for a normal person), that’s still 95% revenue which will absorb the installation cost quickly, and maintenance is minuscule on something like this.
Not to mention that since its subscription based, a broken dispenser is actually more profitable in the short term.
https://www.wolframalpha.com/input?i=(specific+heat+of+water)*12.8K*(1+gallon+*+water+density)
200kjoules of heat must be removed from a gallon of water to cool from 55F to 32F (out of the ground down to pleasant drinking temperature).
Assuming a COP of 2 for your compressor (conservative), that’s 100kjoules or 1/36 of a kWh.
High price for a kWh of electricity is $0.25 in the US. So for your $2 subscription, you can pay for 8kWh per month or enough to cool 288 gallons of water or roughly 9 gallons per day. More than anybody would rightly use.
What a fucking ripoff.
Not to mention that, in a place like a public park, 55F water is totally fine. It isn’t the coolest most refreshing drink of all time but it’s damn good from a public fountain on a 90F day.
I drink to hydrate anyway. The thing that’s satisfying to me is liquid going in. The temperature’s nice if it’s cool but if it’s cold I can’t drink the water fast.
You’re also paying for the installation of a refrigeration system right at the point where you want water.
Sure, but if everyone drinks a half gallon a day (still a lot for a normal person), that’s still 95% revenue which will absorb the installation cost quickly, and maintenance is minuscule on something like this.
Not to mention that since its subscription based, a broken dispenser is actually more profitable in the short term.