John Rumm wrote:

On 08/02/2021 22:35, Paul wrote:

There's this one

https://www.ien.com/product-developm...y-than-it-uses


Might be the same one.

https://arstechnica.com/cars/2017/09...ctric-vehicle/


It's a transportation job, with net energy output.

I wonder how many quarrys have that kind of setup where the raw material
needs to be transported *down* from the quarry?

Shame the welsh slate quarries are no longer in bulk production,
or you could update the old solution of a horse drawing the
empties uphill, and gravity taking everything down laden.

Chris
--
Chris J Dixon Nottingham UK
@ChrisJDixon1

Plant amazing Acers.