Transportation via rail could be traced back to the beginning of the 6th Century. Rail was found to be idle when transporting goods from point A to B in a condensed amount of time.
Railways have evolved through the years from paved track ways to metal rails. During the 16th Century, the main purpose behind rail was to transport coal, later including transportation of people and gods.
The invention of steam-powered and electric-powered trains lead to diesel-powered trains which have been in effect since the 19th century. PolarPanel has focused their efforts on bringing a clean and low-maintenance refrigeration technology to the commercial cold chain. Every 7 years emission regulations requires a replacement of non-compliant generators, with PolarPanel, those high operational expenses will no longer be needed.