I thought mining equipment like that already was electric? 1978: https://en.wikipedia.org/wiki/Bagger_288 https://en.wikipedia.org/wiki/Bagger_288 > Gross pow

I thought mining equipment like that already was electric? 1978: https://en.wikipedia.org/wiki/Bagger_288 https://en.wikipedia.org/wiki/Bagger_288 > Gross power: 16.56 megawatts of externally supplied electricity