The SkySweeper robot is made from off-the-shelf electronics and plastic parts printed on a 3D printer.
It’s claimed SkySweeper could be scaled up for less than $1,000, making it significantly more economical than robots currently used to inspect power lines.
Video:
SkySweeper robot simplifies power line inspection
Invinity to build 20MWh flow battery in UK
A surprising comment for someone who (I think you´ve said in the past) worked in the industry. National Grid have a variety of reserve service schemes...