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I have to admit, the more I looks at the solar roadways idea, the crazier it gets. There is almost no viable element to this project, which of course makes the fact that people have given it over 2 million dollar truly amazing. They now have a 'rebuttal' of sorts up about my first video on their website (which is really comical). Next video will be a response to this... for no other reason than they are quite frankly, hilarious!

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Solar Roadways, IMPORTANT QUESTIONS AND ANSWERS!

Ball park numbers: to 25 000 sq miles = 90 bn square meters. At about 4 tiles per m2, thats 240 billion tiles. At 50 LEDs each, thats 12 trillion LEDS. These need to be light up ALL the time you want road markings! 300 LEDs takes about 60 Watts.

Comments

MrHHH

Loved the bit with the electrolysis. However, I think your power requirement calculations were way off at best. And lazy at worst. First off, these won't work during bright sunlight hours, so they won't be on. Second, they won't be ALL on in the tile. Just the half dozen needed. And finally, you'll never see those LEDs through the scratched up glass. :-)

mega

The LEDs have to be on during the day, otherwise how would you be able to tell where the lanes were? The LEDs are the only way to show this.

Daniel

Since the panels are supposed to be touch-sensitive, they would only turn the LEDs on when a car is nearby, presumably. So your calculation regarding the LED power consumption is somewhat off Thunderfoot. The other problems with the solar roadways remain of course (though I could see them work for parking lots and the like).

Anonymous

Has anybody mentioned that these appear to need a special substructure to bolt down on to? So we need to rip up all the roads, lay down this substructure then lay down the solar panel modules on top of that. I can imagine what will happen once water seeps in between/under these modules and freezes. Heater elements aren't going to work for the reasons stated in the previous video. Solar freakin potholes....

Anonymous

Thunderfoot does a basic analysis of the simple cost of laying these solar-road panels and kills the idea dead but a comprehensive environmental audit would probably bury it. How much energy, in Joules, would it take to manufacture, distribute and lay these panels in relation to the energy they might yield over their lifetime? How much pollution in terms, for example, of CO2 would be released into the biosphere during these processes? How much gasoline would be involved? How much clean water? What of the other toxic chemicals used in the manufacture of this vast quantity of electronic circuits? And to return to the financial cost - how much compound interest do you forego on, for example a billion dollars over the lifetime of the panels, compared to the total value of the electricity generated by them? Finally, who pays for these panels ultimately? The taxpayer? The road user? Keep in mind that if you're using tax dollars to buy and set panels you're not using them for something else, like hospitals, urban renewal, substantial infra-structure upgrades...

Anonymous

An interesting problem I found out today from a friend who is a part time member of the fire brigade. Do these things have an 'off' switch? The fire brigade is very careful spraying water around houses which have live solar arrays for obvious reasons and insist the array is isolated before they even start. A kilowatt of power travelling down a high volume water stream wouldn't be fun for the person holding the hose Now suppose you have a crash, a few tiles are broken open and you have fuel leaking on the road. If the tiles are ganged together (to provide useful amounts power ) and the functional tiles are still making electricity, who in their right mind would spray standard water based foam on the leaking fuel? Especially if these things also have mains powered heating elements inside as well. And of course leaking fuel and live power isn't a good scenario the begin with...

Anonymous

I would like to see you do a video review of the “Common Core” student curriculum.

Anonymous

Why Brian? Are you buying into the conflation with AIR promoting a gay agenda simply because they have a page offering LGBT resources?

Anonymous

I love these videos!! Very thorough. I mean, I knew it was bullshit from the very getgo.. I pointed out that glass is dumb and that solar panels in the roadway cannot possibly pay for themselves if solar panels on the SIDE of the roadway cannot. We have no shortage of AREA for solar panels... But you've pointed out so much more! It's hilarious it's like every single sentence in their claim video is either mocking the viewer or is outright ridiculous.