Navitron Renewable Energy and Sustainability Forum

Announcements & News => Media Watch => Topic started by: stannn on July 23, 2019, 04:22:20 PM



Title: France’s solar road was not a success.
Post by: stannn on July 23, 2019, 04:22:20 PM
http://www.globalconstructionreview.com/news/frances-solar-road-dream-may-be-over-after-test-fa/


Title: Re: France’s solar road was not a success.
Post by: Pat_ on July 23, 2019, 04:34:28 PM
Quelle surprise!


Title: Re: France’s solar road was not a success.
Post by: dan_b on July 23, 2019, 04:56:40 PM
Ha ha ha ha!
Maybe this will put the “Solar freaking roadways” lunacy to bed once and for all?


Title: Re: France’s solar road was not a success.
Post by: phoooby on July 24, 2019, 12:02:24 AM
First the VAWT's mounted in the Eiffel Tower and now the solar road. There not having much luck !


Title: Re: France’s solar road was not a success.
Post by: Philip R on July 24, 2019, 12:24:51 AM
I would summise that the solar road was quite slippery when wet, like a skid pan.

When this proposal was mooted a while back. I wonderred how the solar cells would survive the constant flexing as vehicles passed over them. Not very well.
The PV needs removing and tarmac relaid. From what I have seen on the Tour de Feance, the French roads appear to be less blighted by potholes than in England. (Cannot comment on the other home countries roads).

Philip R


Title: Re: France’s solar road was not a success.
Post by: dan_b on July 24, 2019, 08:28:31 AM
Slippery, noisy, and utterly awful at generating electricity.

This last bit worried me though “Wattway has some 45 solar road projects under way around the world, half of which are in France”

Seems it’s not dead just yet


Title: Re: France’s solar road was not a success.
Post by: Countrypaul on July 24, 2019, 09:10:42 AM
I would summise that the solar road was quite slippery when wet, like a skid pan.

When this proposal was mooted a while back. I wonderred how the solar cells would survive the constant flexing as vehicles passed over them. Not very well.
The PV needs removing and tarmac relaid. From what I have seen on the Tour de Feance, the French roads appear to be less blighted by potholes than in England. (Cannot comment on the other home countries roads).

Philip R

I wouldn't assume that just because the roads on the TdF appear less blighted that the same is true of all roads. It was quite miraculus the way all the roads round here that the Tour de Yorkshire were to used suddenly ended up with no potholes shortly before the race  whistle


Title: Re: France’s solar road was not a success.
Post by: phoooby on July 24, 2019, 09:59:16 AM
 “Wattway has some 45 solar road projects under way around the world, half of which are in France”

You think they would do one and realise it was a lemon idea before blowing budgets on another 45. Maybe after the 45 roads show the same results they can do a larger sample of 100 and see if that shows any improvements.....utterly bonkers.


Title: Re: France’s solar road was not a success.
Post by: smegal on July 24, 2019, 10:45:51 AM
I would summise that the solar road was quite slippery when wet, like a skid pan.

When this proposal was mooted a while back. I wonderred how the solar cells would survive the constant flexing as vehicles passed over them. Not very well.
The PV needs removing and tarmac relaid. From what I have seen on the Tour de Feance, the French roads appear to be less blighted by potholes than in England. (Cannot comment on the other home countries roads).

Philip R

I wouldn't assume that just because the roads on the TdF appear less blighted that the same is true of all roads. It was quite miraculus the way all the roads round here that the Tour de Yorkshire were to used suddenly ended up with no potholes shortly before the race  whistle

I noticed that near me in Pontefract. Although nearby roads are just as bad.


Title: Re: France’s solar road was not a success.
Post by: Scruff on July 25, 2019, 02:15:46 AM
Quelle surprise!

 ::)

First the VAWT's mounted in the Eiffel Tower and now the solar road. There not having much luck !

What has luck got to do with ignoring the advice of engineers and field data?
 wackoold


Title: Re: France’s solar road was not a success.
Post by: biff on July 25, 2019, 09:48:38 AM
  It was glaringly obvious
                    That road solar was never going to show a fraction of the financial returns that dedicated  solar farms would show.. I found the whole idea of road solar repulsive and wasteful.
  It might work if the traffic was banned. :hysteria
        Biff


Title: Re: France’s solar road was not a success.
Post by: GarethC on August 04, 2019, 12:55:31 PM
https://m.energytrend.com/research/20190802-14780.html

 >:(


Title: Re: France’s solar road was not a success.
Post by: azps on August 05, 2019, 05:29:43 AM
https://m.energytrend.com/research/20190802-14780.html

Quote
France Will Experiment With PV Power Roads Again

 banghead:

Although, to be fair, the UK's pursuing new nuclear is a very similar kind of mistake, but then orders of magnitude more wasteful. The French taxpayer will probably benefit directly from that one, and that will be enough to pay for hundreds of failed PV roads.


Title: Re: France’s solar road was not a success.
Post by: Tinbum on October 20, 2019, 12:48:46 PM
BBC Click Today


- oh no, I thought this was dead!!!!  chocpot:


Title: Re: France’s solar road was not a success.
Post by: rogeriko on October 20, 2019, 01:05:39 PM
Dont you all know this is just a way of transferring your tax money into the pockets of the government's friends, sorry I meant contractors.  Its just blatant corruption glossed over so you dont realise it.  Look at HS2 and making the M62 into a smart motorway. Totally unnecessary projects. If you are not a businessman with tax deductible tickets you will never ride on the HS2.  The country should be run by scientists not politicians.


Title: Re: France’s solar road was not a success.
Post by: Nickel2 on October 20, 2019, 04:12:54 PM
Despite being a rail enthusiast, I agree with you entirely that HS2 is a total waste of time and money.
Ordinary people will never use it, business people will take a plane if they are 'important' enough.
Smart is the new stupid.
Definitely Not Good.
 :fume


Title: Re: France’s solar road was not a success.
Post by: todthedog on October 20, 2019, 07:46:57 PM
Totally agree with Biff and Rogeriko.
A total waste of money.


Title: Re: France’s solar road was not a success.
Post by: phoooby on October 20, 2019, 11:05:45 PM
Bit of thread drift.

I think the HS2 budget would be better spent on electrifying more of the network and maybe increasing speeds marginally with track improvements. I dont know what improvements could be made in terms of speed but even increasing form 125 to 140-150 mph with newer rolling stock would be worth it and undoubtedly cheaper than HS2. I'm sure I heard or read somewhere than HS2 costs would be much less if they just brought the speed down to TGV levels of 180 mph.

Electrifying most of the mainline and commuter network really needs doing anyway to cut FF use, so might as well crack on with it now. Just think of all that steel to keep the steel industry busy for many years making overhead gantry's.

Going by the current time schedule, by the time HS2 is finished in 2030 ish, there will probably be short haul electric flight within sight which will kill the market for high speed rail leaving the UK with another costly white elephant.


Title: Re: France’s solar road was not a success.
Post by: dan_b on October 21, 2019, 09:51:35 AM
New rail capacity is clearly needed.
HS2 would be a good way of adding new capacity, particularly on long distance inter-city - London to Scotland via a Birmingham and Manchester makes perfect sense.
But it has definitely suffered from mission creep, overcomplex design, doesn't actually deliver London to Scotland and is extremely costly. 
A large amount of the budget is due to the sheer amount of tunneling that has been added in because of environmental/ noise concerns, but then there is also a huge additional cost for the 250mph line speed aim.  If it were built around current TGV 200mph line speed designs, it would be far cheaper, and given the distances between stops, would not really have a significant impact on scheduled journey times.


Title: Re: France’s solar road was not a success.
Post by: Nickel2 on October 21, 2019, 05:18:32 PM
I was discussing HS2 with my sister's hubby the other week concerning the cost of the project. He is a retired materials manager for Balfour-Beatty and has been foundation design authority responsible for many road and rail projects both here and abroad. He explained to me that one of the major costs of any major transport infrastructure project is the soil structure beneath the ground surface.
It's all way over my head/under my feet, but it's something like this: For a 100 mph railway the soil must be stabilised to a minimum depth of 4 metres; for a 200 mph railway the pressure front is active a lot lower, so they would need to stabilise the soil to a typical depth of 20+ metres.
That is a huge cost to be undertaken before any of the sub-base or formation is even begun.
Failure to stabilise results in localized soil liquefaction, (like wot happens with earthquakes, or dabbling your toes on damp sand), causing failure of the formation, mis-alignment of track, etc with subsequent costly delays and repairs.
There was a whole raft of other stuff he told me about, but he is a road/rail soil engineer, I am an electronics engineer, and my brain got clogged in a short space of time.
As for high-speed bridge foundations, that is another kettle of fish!
My idea of foundations is dig hole, pour concrete, build whatever on top, and be glad we don't have earthquakes here.
(My house was built on a flood-plane 115 years ago; the old maps say 'liable to flooding, not suitable for building'. The railway at the bottom of the garden has wobbled the the whole lot into the ground with every passing train; My wshop stands on a 7.25 cubic metres slab that wobbles when a lorry goes past on the bypass 200 M away.
Sorry about the ramble, got carried away. ::)