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gregotyn
Joined: 24 Jun 2010
Posts: 1591
Location: Llanfyllin area
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 Posted: Fri Feb 17, 17 2:38 pm Post subject: |
 
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Thankyou for your reply, Slim, I am learning!
I don't think any new build in the UK today should have other than solar heating for water, space heating if practical and massive amounts of insulation to save heat losses, maximizing as much heat as possible.
I take the point about the use for the snow on the roads sort of catch 22. But to illuminate all car parks and roadways with solar is something within our grasp now, just need the finance to be put in place. I have seen some road signage in one or two places illuminated with solar, so there is some progress. I can't remember where-just thought at the time what a good idea.
Last edited by gregotyn on Fri Mar 31, 17 1:55 pm; edited 1 time in total |
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jema
Downsizer Moderator
Joined: 28 Oct 2004
Posts: 26603
Location: escaped from Swindon
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| Posted: Fri Feb 17, 17 2:50 pm Post subject: |
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where do you even start with what new builds aught to have compared to the awful dolls houses that pass for houses these days? |
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Mistress Rose
Joined: 21 Jul 2011
Posts: 9548
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| Posted: Sat Feb 18, 17 8:49 am Post subject: |
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The only problem with car parks illuminated at ground level is that the light shines upwards. In this area we have an observatory, so everything is downlit. I agree with you about solar water heating Gregotyn, and where possible solar cells on roofs. Insulation is a good idea, but I am always concerned about having to have houses pretty well shut up tight for the winter as it does cause condensation and general fug in a house. I think all houses should have chimneys too, as being able to have a fire in case of electricity failure is a very good idea. The houses next to us have false chimneys. For some reason they thought plastic chimneys on the top looked pretty, but as far as I can see their only use is for pigeons nesting and we have too many of them. |
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gregotyn
Joined: 24 Jun 2010
Posts: 1591
Location: Llanfyllin area
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| Posted: Sat Feb 18, 17 9:54 am Post subject: |
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I have seen at a private car park solar panels on the top of tall lamp standards-solicitors where else?-must have some sort of battery to take it in by day and give it out at night. And solar energy should be made compulsory for all council chambers for lighting to show how much it saves and so they would put it into all their building as an automatic thing just see how little the rates increase then ha ha. Their premises always seem to be with lights on all the time regardless of time of day. The printers next to where I work have covered their roof in solar and I keep meaning to ask if it was worth the cost-or rather how much they have saved. |
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Mistress Rose
Joined: 21 Jul 2011
Posts: 9548
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| Posted: Sun Feb 19, 17 7:56 am Post subject: |
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Several of the road signs in our area that flash to warn you to slow down have a combination solar and wind turbine ( a very little one) on them to provide for the illumination. Most of them seem to work quite well, and it saves having to run a cable to them. |
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Nick
Joined: 02 Nov 2004
Posts: 33803
Location: Hereford
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Slim
Joined: 05 Mar 2006
Posts: 5152
Location: New England (In the US of A)
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| Posted: Sat Mar 11, 17 12:39 pm Post subject: |
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It's not looking good for solar roadways
http://dailycaller.com/2017/03/07/americas-first-solar-roadway-is-a-total-disaster/
Admittedly, this is only one company, but then again, they've sucked down 3.9 million in funding, which I personally would rather have seen go to installing panels - which already exist with today's technology and have been proven - on top of roadways, or parking garages, or what have you (or updating the grid to better handle solar generation).
Some choice quotes from this discussion: https://www.reddit.com/r/Futurology/comments/5yp2l0/americas_first_solar_roadway_is_a_total_disaster/
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"The Road to Hell is paved with Good Intentions."
That saying has been around in one form or another pretty much since the dawn of humanity. Can we stop giving people credit for having good intentions?
These people didn't do their homework, and have taken millions of dollars from taxpayers and gullible optimists. Then other people did the homework for them, and they persevered against the naysayers to continue on and waste more millions of dollars. |
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| From another perspective, if anyone tries this again they will have to prove they are better than the precedent that was set by this. There is now undeniable evidence, instead of educated speculation that it is a bad idea or at least needs some major redesign is before it is viably fundable for a reattempt. There could be active data and improvements being made as this is, and always was, a pilot project. |
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| Seriously roads are long narrow things you would be surprised how little space it takes to cover the same as a road. If you had a 1km by 1km square that would be equivalent to 166km of a 6m wide road. Even if we take 24 meters for a motorway we still get a lovely 44km of road covered by a 1 by 1 km. |
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Mistress Rose
Joined: 21 Jul 2011
Posts: 9548
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| Posted: Sun Mar 12, 17 8:16 am Post subject: |
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Unfortunately this failure won't do the technology any good. We will have to see if others work better. |
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jema
Downsizer Moderator
Joined: 28 Oct 2004
Posts: 26603
Location: escaped from Swindon
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| Posted: Sun Mar 12, 17 8:52 am Post subject: |
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Making something dual purpose e.g. road and solar is I suppose an odd idea when there is so much roof space going to simple waste. |
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Slim
Joined: 05 Mar 2006
Posts: 5152
Location: New England (In the US of A)
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| Posted: Sun Mar 12, 17 1:53 pm Post subject: |
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I guess I just don't see the advantage. We have solar that works very well for generating power (and is constantly being improved with new iterations). It is not designed for being driven over however.
The things that we have designed to be driven over need constant maintenance and replacement, and that's without sensitive electronic components. Why is it being pushed to combine the two and create a whole load of more engineering that needs to be done to try to make something that likely isn't as good at either job as the two individual components on their own? |
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dpack
Joined: 02 Jul 2005
Posts: 33632
Location: yes
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| Posted: Mon Mar 13, 17 2:01 pm Post subject: |
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the good thing is it wasn't very expensive to find out it is not a simple to do as they thought it might be and the idea can rest along with flying cars and teapot hats.
the other good thing is that a few folk might have thought " blahhhhhhhhhhhhhhh would be much better" and be right  |
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Slim
Joined: 05 Mar 2006
Posts: 5152
Location: New England (In the US of A)
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Mistress Rose
Joined: 21 Jul 2011
Posts: 9548
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| Posted: Mon Mar 27, 17 6:47 am Post subject: |
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Pavements and cycle paths make more sense than roads as they don't carry such heavy loads. Judging by the complaints of cyclists not using cycle paths round here, it would be a prime test site as they are rarely used.  |
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Slim
Joined: 05 Mar 2006
Posts: 5152
Location: New England (In the US of A)
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| Posted: Tue Dec 05, 17 12:37 pm Post subject: |
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Sorry to drag this up again, but this xkcd comic was just too relevant:
https://xkcd.com/1924/
(hover your cursor over the comic for an alt text as well) |
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dpack
Joined: 02 Jul 2005
Posts: 33632
Location: yes
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| Posted: Tue Dec 05, 17 1:34 pm Post subject: |
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very neat and accurate |
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