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Home Tech

Solar Roadways and The Hurdles In Implementing Them !

by Guest
April 17, 2016 - Updated On April 18, 2016
in Tech
Reading Time: 5 mins read
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Solar Roadways and The Hurdles In Implementing Them !
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Solar roadway is a brilliant concept put forward by Julie and Scott Brusaw. It made lots of news last year when it raised $1.38 Mn. last year through crowd funding.

The idea is to cover all of the asphalt by solar panels that will generate electricity roughly three times greater than consumed by USA. Apart from that, the idea says that the solar panels will be intelligent enough to melt the ice on road and the like.

Let me first give a sneak preview to a reader who doesn’t know what the heck a solar roadway is. And then, I will go over the advantages and disadvantages to express my views on the same.

The Construction of Solar Roadway:

The solar roadway will have three main parts.
1. Road Surface Layer; 2. Electronic layer; 3. Base plate layer

1. Road Surface Layer: This is a high strength translucent layer at top, over which vehicles will be moving. It will be having solar collector cells, LEDs and heating elements embedded within it. The LEDs with provide a safe night travel and an aesthetic look to the road in nights.

2. Electronic Layer: This layer contains photovoltaic cells to absorb solar energy. This layer also houses a microprocessor and few sensors that sense the amount of pressure and temperature of the upper surface. This electronics present in this layer can sense the presence of snow on the road and are capable of eliminating it.
Apart from that, the microprocessor also controls the lighting, signaling and other functions. It is this layer that converts solar highway into an intelligent highway.

3. Base Plate Layer: This is the layer at the bottom that protects the electronics as it is weatherproof. Apart from that, while the electronic layer collects solar energy, it is this layer that distributes it.

In nutshell, the #1 layer will collect sunlight, #2 layer will convert that into electricity, and the #3 layer will distribute it.

Advantages:

It’s easy to infer advantages of such a roadway that looks sexy and is a source of renewable energy. Another advantage that I can see is that it has potential to provide electricity to the remote areas also and I can rephrase a famous saying as –“Where there is a solar road, there is the electricity.”

Disadvantages:

As Nicholas Spark say “Nothing that’s worthwhile is ever easy. Remember that.” These lines of him are well suited for the hurdles that are there on the way which leads to the solar roadways. I am mentioning some of them that are striking my mind.

Hacking: First and foremost thing that struck my head while researching about this intimidating concept was hacking. It is proposed that LEDs (on layer #1) will be programmed to provide various kind of information (see the pic) to the drivers and pedestrians. For example, these LEDs will be telling a driver to maintain a speed, displaying distance of a particular city, direction headings and the like.

Now what if someone hacks the system and provides wrong information to the people on road? And what if the hacker switches off all the LEDs in night?

Cost: Solar panels made of crystalline silicon, are going to replace the asphalt on solar roadways. In general, one square foot of asphalt cost $16; on the other hand, the solar panels are going to cost around $48. Apart from that, the LEDs that are proposed to be embedded within the first layer for signage are way more expensive than solar cell for per square foot. To give you an estimate, this person built an LED coat that covers his body and he is selling it at $24,995 (Front half only).

Now let say, due to economies of scale and mass production, the cost for blanketing the same area will get reduced to $20000. I don’t think it will go below that and now you can easily infer that how costly it’s going to be.

Moreover, when vehicles will drive past over the first layer, the tires will leave marks of dirt and other things that will block the sunlight to produce electricity. Thus, regular cleaning of the road will become a must to produce electricity and this will escalate the cost.

Driving in Rainy Season: I may be assuming, however, I believe that driving on a glass surface on a rainy day is going to be difficult for any driver out there. The road will become slippery and braking will becoming inefficient due to reduction in friction.

Apart from that, the roadway will become a liability rather than asset in rainy season as it won’t be producing any electricity at all.

Durability: The durability of such roadway is another issue. On a highway, where large sized trucks constantly move, the glass may or may not be able to withstand the pressure. And on Indian highways, where trucks and buses are always overloaded, I am quite sure that the glass will not survive.

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Other Articles By Nitin Balodi:

5 Technologies Dictating the Future of Healthcare !

This Is How Samsung Will Ensure Data Security In 5G Era

LiFi Is Way More Than Ultra-Fast Internet Only

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(Image Credits: cnn.com)

(Disclaimer: This is a guest post submitted on Techstory by the mentioned authors.All the contents and images in the article have been provided to Techstory by the authors of the article. Techstory is not responsible or liable for any content in this article.)

About The Author:

nitin balodiNitin Balodi works at GreyB Research where he with his colleagues delves on patents a lot.

He is an aviation freak with a callsign of ‘flanker’. He loves writing about technologies that will shape future of the humanity.

Tags: Clean EnergyCleanTechInnovationNitin Balodirenewable energySolarSolar RoadsSolar Tech
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