>“The device can work in remote areas because it provides its own power and does not need batteries,” said senior author Richard Kaner
Second paragraph.
The point is, when it snows, often the sun is blocked, or the solar panels might get covered. While it is snowing this device can continue to work without batteries.
I think for clarity, the article should touch on the magnitude of the power output in human terms.
For example, some models of the Nissan Leaf electric car have a small solar panel on the roof.
Surprisingly, I think this is a selling point for the car or the option package that includes the panel because people think this car will give you many miles of free driving.
However, it's supposed to maintain the 12v battery, but its 5 watts of power might not be sufficient power for even that minor task.
Second paragraph.
The point is, when it snows, often the sun is blocked, or the solar panels might get covered. While it is snowing this device can continue to work without batteries.