As far as power consumption goes, they are stupid low. Without GPS, and with boosted gain turned off, I get over 3 days on a device with a 700 mAh battery and the NRF52840 chip. The ESP32 devices use quite a bit more power, but all of these nodes are easily chargeable with a 5W solar panel.

You can put up a node on a tower with like four 18650 batteries and a five watt solar panel and the damn thing will never die until its damaged by the elements like lightning.