This March 2017 time-lapse shows early research on using battery-powered and plug-in electric chainsaws for tree work operations.
We stopped at a rest area and saw this helicopter trimming trees along power lines with a series of saws dangling from a (cable?). A smart way to silence this problem!
Guy wearing a neon orange shirt uses an electric saw to cut down the large tree. He saws through the trunk until it falls over. Day time, tree cutting.