One exception to note: If the food's sitting in an environment where the temperature is over 90Â°F, the USDA says the food should only be left out for one hour, so keep an eye on the clock if you're serving food on a hot day!
Estimated cost of hydrogen per kilogram in a variety of scenarios. With all of this in mind, here are the cost estimates per kilogram (which each include $1.25 for taxes): Hydrogen from natural gas (produced via steam reforming at fueling station). $4 â $5 per kilogram of hydrogen.
c. Suppose the company decides that only 1,400 units can be sold at a price of $5,000 and, therefore, the target cost cannot be reached. The company is considering dropping the steam feature, which adds $600 of variable cost per unit. With this feature dropped, the company believes it can sell 2,500 units as $4,000 per unit.