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Photovoltaics are still running after a year under Swiss trains

theregister.com

1–10 of 14 posts

Re: Photovoltaics are still running after a year under Swiss trains

#3
A lot of people doubted this could work. After all, railway tracks are a dusty, hot environment with tons of vibrations that could cause microcracks.

I was in the doubter team too, but if this really worked out, that's great news. Congrats to the project team! Will be interesting to see if this scales well.

Re: Photovoltaics are still running after a year under Swiss trains

#5
What are the advantages to putting them between the rails, where you need trains to stop running in order to access them?

If it's about using wasted land, why not put them beside the rails, which would make access easier? There is usually a generous margin beside the tracks.

This would also allow bigger panels to be used.

Re: Photovoltaics are still running after a year under Swiss trains

#6
post #5

What are the advantages to putting them between the rails, where you need trains to stop running in order to access them? If it's about using wasted land, why not put them beside the rails, which would make access easier? There is usually a generous margin beside the tracks. This would also allow bigger panels to be used.

I think the idea is that you can make a machine that goes on the rails and installs them automatically. So you don't need to haul a bunch of equipment on site, you just drive one special train down the track once.

Re: Photovoltaics are still running after a year under Swiss trains

#7
I often wonder about some of the more critical comments on projects like this. It should be welcomed by everybody that someone even tries. If it doesn't work - well at least we know. If it does - even better. Anyone who has ever started a hardware company like this group would know who challenging this can be no matter what. But to do that in such a highly regulated environment? Methinks it is very impressive that they got that far and hopefully will go further!

Re: Photovoltaics are still running after a year under Swiss trains

#9
post #3

A lot of people doubted this could work. After all, railway tracks are a dusty, hot environment with tons of vibrations that could cause microcracks. I was in the doubter team too, but if this really worked out, that's great news. Congrats to the project team! Will be interesting to see if this scales well.

The panels probably need 5-8 years in that location to be energy positive. A year is great, but doesn’t prove much.

Re: Photovoltaics are still running after a year under Swiss trains

#10
post #5

What are the advantages to putting them between the rails, where you need trains to stop running in order to access them? If it's about using wasted land, why not put them beside the rails, which would make access easier? There is usually a generous margin beside the tracks. This would also allow bigger panels to be used.

I think the biggest advantage rails have is that they are electrified and are accessible by rail based maintenance vehicles. Panels have gotten so inexpensive that the major cost is usually the mounting, installation, and electrical access. Some of that is mitigated by installing on railways. You can automate the installation process and connect into the tram lines.
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