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More trouble for monitoring etc, but you could build a battery house at the panels and just send 120 or 240 underground to the cabin, but I'm sure you considered that already. Thought I'd bring it up for pro and con discussion.
Conversely, as a panel is cooled, as on a -20 degree day, it's output voltage rises. Cold weather performance is enhanced. This is good as cold weather usually means shorter days, fewer hours of sunshine. That won;t make up for the greater number of hours os summer sunshine, but it helps. However, along with cold weather and the higher output voltages comes a danger. All electronics have a design range for input voltages; a lower limit and a higher limit. Drop below the lower limit and the unit may just stop functioning until the voltage rises. Exceed the upper limit and the unit may stop functioning permanently. Toast.