On 01/08/2015 07:44, Tim Streater wrote:
In article om, bm
wrote:

A not-particularly-technologically-minded friend was pondering whether
or not an electric train covered in PV panels would be viable.

Amazing it doesn't occur to them to wonder about tunnels, night-time,
cuttings where the track is permanently shaded, cloudy days, ...


It'll be fine, just put it on 40,000 ft towers to keep it above the
clouds and avoid tunnels. Nobody needs trains at night so that's OK too.