Vaccines need to be kept cool--between 36 and 46 degrees Fahrenheit--to prevent spoiling.
FORBES: The Last Mile
Grocers, on the other hand, sell perishable products that have to be kept frozen or cool and that must also be delivered at specific times.
ECONOMIST: Online grocers
The water host also means they can be mounted low to the ground, kept cool on hot days, and easily withstand weather events that could topple a tall solar tower.
FORBES: Company Creates Solar Power That Floats In Water
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