The CBS News article Expedition Antarctica: A father and son's journey to save the planet says (in part):
The success of the expedition necessitated the pioneering of new equipment that would use renewable energy to melt snow and ice into hot water on the move in the Antarctic. So, while Robert had previously used jet fuel to cook his food and keep warm in the -40-degree temperatures, this time he and his son used biofuels derived from wood chips to do the job. They used solar panels, provided by NASA, that plugged into their sleds to melt ice and snow into drinkable water.
Question: I'm curious about what technology assistance NASA gave to hikers to the South Pole. I'm guessing there's more than just "here's some solar panels and a roll of nichrome wire for a heater." Were batteries or other low temperature resistant electronics involved, or special insulation to keep the melt volume from refreezing? What (if any) parts of the assistant are a direct result of NASA's activities in space and/or inhospitable environments even on Earth in general?
above: "Robert and Barney Swan towing sleds topped with solar panels across Antarctica." From here. Credit: SHELL-Technical Partners