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Old 06-15-2014, 06:45 PM
 
Location: Westwood, MA
3,525 posts, read 4,399,984 times
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Quote:
Originally Posted by Josseppie View Post
Solar is the future. Just not sure about solar roads.
Fusion is the future. Perhaps the distant future. Perhaps my baby daughter's future or her grandchildren's, but eventually. Solar will be important in the near to mid term, but it has to get cheaper.
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Old 06-16-2014, 12:35 AM
 
Location: Pueblo - Colorado's Second City
12,106 posts, read 20,430,722 times
Reputation: 4148
Quote:
Originally Posted by jayrandom View Post
Fusion is the future. Perhaps the distant future. Perhaps my baby daughter's future or her grandchildren's, but eventually. Solar will be important in the near to mid term, but it has to get cheaper.
I can see fusion being the far future but no one can exactly say when. We can say solar will be 50% cheaper then fossil fuels by 2030 why as of now I am focused on that technology.
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Old 06-20-2014, 03:22 AM
 
33,226 posts, read 39,373,226 times
Reputation: 28585
Quote:
Originally Posted by kidd_funkadelic View Post
I'm not sure if you have heard about this new technology yet but this is a concept where the road ways will generate energy.

Solar FREAKIN' Roadways! - YouTube

If your city or state put this up to a vote would you vote yes or no? Also consider the economic impact (particularly big oil and the cities of Houston and Dallas)
Brilliant idea now we just have to convince all the gas companies and related infrastructure that their services are no longer required..
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Old 07-02-2014, 05:09 AM
 
37,072 posts, read 38,575,098 times
Reputation: 14846
Makes no sense, lets put expensive solar panels under the crushing weight of trucks and vehicles that are inevitably going to deteriorate. Plus you have cars over the panel shading them, dirt issues, sounds like a maintenance nightmare. Call me carazy but if saving space is the idea perhaps the median might be a better location.


Quote:
Originally Posted by NJBest View Post
We already put them on houses and buildings (well people who care about clean energy do, anyways).
That's easy to say when the taxpayer and/or other ratepayers are paying for more than half of it.
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Old 07-02-2014, 05:34 AM
 
Location: Swiftwater, PA
13,357 posts, read 10,712,208 times
Reputation: 9543
Quote:
Originally Posted by thecoalman View Post
Makes no sense, lets put expensive solar panels under the crushing weight of trucks and vehicles that are inevitably going to deteriorate. Plus you have cars over the panel shading them, dirt issues, sounds like a maintenance nightmare. Call me carazy but if saving space is the idea perhaps the median might be a better location.

That's easy to say when the taxpayer and/or other ratepayers are paying for more than half of it.
I would worry about dirt/sand scratching and deteriorating the surface. I also worry about traction - it is hard to imagine that anybody can stop, in the same distance, on glass as they can on asphalt. And, yes, the quick test to get approval and win contracts is not the reality of 'use'. Only time will tell us how these panels perform on our busy roadway. Heavy trucks are allowed 20,000 pounds/axle - that can and will take a toll on any material.

We have recently witnessed our government throwing money away on solar technology. It made a few 'privileged' individuals wealthy and taxpayers poorer.

I am surprised that nobody proposed the idea of covering roads with solar panels? At least that way we would not be destroying these panels and it could keep the precipitation off the roadway.
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Old 07-02-2014, 05:54 AM
 
37,072 posts, read 38,575,098 times
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Quote:
Originally Posted by Josseppie View Post
Solar is the future.

Solar cannot and will not ever replace base load from fossil fuels and nuclear. It can never scale and the economics will never make sense. You might need solar capacity and storage 10 or 20 times what the daily average might be. How safe do you feel with no more than 10 days of electricity with no guarantee that it can be replenished fast enough?
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Old 07-02-2014, 06:12 AM
 
12,973 posts, read 12,228,657 times
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Quote:
Originally Posted by thecoalman View Post
Solar cannot and will not ever replace base load from fossil fuels and nuclear. It can never scale and the economics will never make sense. You might need solar capacity and storage 10 or 20 times what the daily average might be. How safe do you feel with no more than 10 days of electricity with no guarantee that it can be replenished fast enough?
Different thread. Requires some solution to the energy storage problem. Certainly works if solar gets cheap enough...use hydrogen. No time soon though.
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Old 07-02-2014, 06:49 AM
 
37,072 posts, read 38,575,098 times
Reputation: 14846
Quote:
Originally Posted by lvoc View Post
Certainly works if solar gets cheap enough....
It will never be that cheap. How many days of power do you think is sufficient for backup? That's how much storage you need and then you need a solar system large enough that can rapidly recharge that storage. In the end you are still making a large gamble.
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Old 07-02-2014, 07:36 AM
 
12,973 posts, read 12,228,657 times
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Quote:
Originally Posted by thecoalman View Post
It will never be that cheap. How many days of power do you think is sufficient for backup? That's how much storage you need and then you need a solar system large enough that can rapidly recharge that storage. In the end you are still making a large gamble.
You know better than this. It is virtually inevitably in the long run.

Well maybe we get to fusion first...who knows.

But triple the cost of fossil fuels, double the efficiency of PV and half its cost and you are there.

Make and store hydrogen...probably doable locally...or pump sea water up to a canyon at a thousand feet above sea level.

How much is a statistical calculation. Same old question as how big are your coal piles.

For some years yet fossil is clearly the winner...but forever? Nah.
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Old 07-02-2014, 10:26 AM
 
37,072 posts, read 38,575,098 times
Reputation: 14846
Quote:
Originally Posted by lvoc View Post
You know better than this. It is virtually inevitably in the long run.
Now when you consider scaling it to provide base power. That's a whole other ball game becsue of both the storage and capacity issue.



Quote:
But triple the cost of fossil fuels,
LOL, you're not making something else cheaper by tripling the cost of it's competitor.

Quote:
...or pump sea water up to a canyon at a thousand feet above sea level.
So now you have the cost of a dam, you have the cost of pumps, you have the cost of generators and most importantly you have the energy expense becsue of all that lost energy pumping it up to a dam. Not looking like such a great idea now is it?
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