After the year we’ve had, it’s no surprise that the Top Ten innovations in solar power for homes mostly relates to making more energy for less money. However, amongst this selection, there are also some very funky ideas.
So, as we bring this incredible year to an end, Go Solar Power For Homes Dot Com brings to you our very own 2008 Innovations In Solar Power For Homes Award.
10/ ‘Hairy’ Thin Film Solar Panels From Nanowires
It was impossible for this development not to make it into the top ten, if only because it is so completely leftfield. Researchers at the uber-cool McMaster University have succeeded in actually ‘growing’ light-absorbing nanowires made of high-performance photovoltaic materials on carbon-nanotube fabric.
What that means in English is that we are now seriously looking at hairy solar panels!
In short, if we can make flexible, affordable solar cells that, within five years, could convert 20 percent of light, then we really have something here. Over time, the researchers suggest that they might expect to achieve 40 percent efficiency. We like the sound of that!
Info via: technologyreview.com
9/ Sunrgi - Making Solar Power Truly Competitive
Sunrgi claim that their system will soon be able to “produce electricity at a wholesale cost of 5 cents per kWh (kilowatt hour).”
How? By concentrating the Sun’s light into extremely efficient solar photovoltaic cells. This is very technical. You really do want to visit the treehugger.com page where they explain how Sunrgi’s Extreme Concentrated Photovoltaics work. It’s so great!
Their patent-pending technology involves everything from dual-axis sun tracking to cooling of the solar cells. Meanwhile, further good news is that the whole system is all set and optimized for mass-production. Bring it on!
8/ 25 Percent Cheaper Solar Panels Anyone?
Meanwhile, researchers at Day4 Energy are hard at work innovating their way to the top. They, more than most, are only too aware that performance in the marketplace is essential for business success.
They are not so concerned with beating solar PV efficiency records in the lab. They are looking more exactly at cutting the cost of solar panels by 25 percent.
How do they do that? By making solar cells that are roughly 18 percent more efficient than their competitors.
They have further good news in that they expect these super-efficient solar panels to be on the market within 18 months.
Info via: technologyreview.com
7/ Towards The Fateful $1/Watt
The race is well and truly on! Apparently there are more than 80 companies presently competing to be the first, the most efficient and the best at manufacturing solar panels with an output that costs less than $1 per Watt. This is the figure considered by most to be the price point at which solar panels, and solar power in general, becomes competitive with coal-burning electricity on the grid.
1366 Technologies are busy creating a multi-crystalline silicon solar panel that is 27 percent more efficient than conventional multi-crystalline silicon solar cells. Its total efficiency is running at 19.5 percent – roughly equal to the more expensive single-crystal silicon model solar cells. Though they have their challenges, not least the number of their competitors, but still, I wouldn’t bet against them.
Info via: cnet news
6/ What Solar Panels Can Learn From Moths
The trouble with silicon is that it is reflective. So light that could be turned into electricity is lost because it bounces away. For some time now, a not altogether successful solution was to apply anti-reflective coatings. Then, some researchers looked at the make up of a moth, and everything changed.
Did you know that moths have extremely non-reflective eyes? This was probably a defense mechanism they evolved against nocturnal predators. Whatever … All you need to know is that because a lot of clever people have gone down this road, suddenly we have panels that lose just 2 percent of the light that hits them – a vast improvement over the 35 to 40 percent reflection rate or previous times?
Info via: physorg.com
5/ Solaria: 90 Percent of the Power from Half The Silicon
In these troubled times, you would want to be the manufacturers of a solar cell that produces 90 percent of a conventional solar panel’s power, while using only half the amount of silicon.
Solaria are justifiably happy to bring to the world a solar cell that slices the silicon into thin strips and spaces them apart so the silicon itself only covers half the panel’s area. From there, a clear molded plastic cover collects all the light from the panel and draws it to the strips of silicon. The whole process is complex but makes perfect sense when you read about Solaria’s innovation.
4/ Japan Races Towards Solar Power Station in Space by 2030
The new race for space has begun in earnest. Only this time it is not about getting people to the moon or Mars. This is about getting solar panels into space. You see, in space there is no shadow from earth, so there we have solar energy 24:7, and it doesn’t even stop for Christmas!
Many people are asserting that whoever gets up there first will be the inheritors of the earth. Just think of all that clean sustainable energy! It’s hard to disagree. So the U.S.A. and others may want to take note that the Japanese seem to be currently leading this particular space race.
We are talking about a seriously massive project here though – think solar panels that are a kilometers long, weighing more than 10,000 tones. All that with a laser section that might need to be as much as10 kilometers long, with a receiving unit on Earth up to two kilometers long.
(CUE THE DRUM ROLL …)
… AND IN THIRD PLACE …
3/ Turning Infrared Light Into Electricity
Imagine being able to not only use the visible spectrum of the sun’s light, but also to be able to gain energy from the infrared spectrum - solar panels making use of the infrared spectrum of light
Here’s how it works …
Scientists are developing a process where, by adding vanadium and titanium into the basic structure of a solar panel, you can get power from infrared as well as visible light from the sun.
Currently solar cells strike out at around 40 percent absorption limit. By making additional energy from infrared, we should be seeing up to 63 percent.
So, the 2008 Innovations In Solar Power For Homes Award Runner-Up Is …
2/Nanosolar: ‘Printing’ Solar Panels For Big Savings
Based in Palo Alto, California, Nanosolar’s creative team has come up with an innovative technique to make solar film. They simply print CIGS (copper-indium-gallium-selenium) onto a thin polymer sheet in a process very similar to an old-school printing press.
The savings on silicon are significant such that a Nanosolar solar cell will cost about one-fifth to one-tenth the cost of a standard silicon solar panel.
With investment from France’s EDF and with further interest from the owners of Google, Nanosolar are all set to go into mass production. If you have a few minutes, you can watch a YouTube video all about them. This is really happening, right here right now!
And so, the Winner of The 2008 Solar Power For Homes Breakthrough Of The Year Award is …
1/ Thin Film Solar Power For Homes
Thin film is all the rage. This technology requires less of our planet’s diminishing supply of silicon. It also adds new levels of flexibility and thinness so designers and architects love it.
However, it is essential that thin film is economical viable. So the US National Renewable Energy Laboratory (NREL) came up with a breakthrough that ensures that thin film solar panels are on the verge of being truly competitive with more established silicon-based panels.
A thin film solar cell has just been rated at 19.9 percent efficiency, in other words, 19.9 percent the sun’s light is converted to electricity by the panel.
This is a new world record and an important milestone. The goal for thin film technology is to match silicon in performance.
Made from copper indium gallium diselenide or CIGS for short, and it looks like you will be hearing a lot more about thin film solar in the near future.
Now, that is a breakthrough worth sending to the top of the class!
Info via renewableenergyworld.com
So that completes our 2008 Innovations In Solar Power For Homes Award. We hope you enjoyed going through it. Maybe you disagree with some of the choices or have better possible entries? What would you say were your 2008 innovations in solar power for homes? Don’t be shy! We would love to hear from you. The comments area below awaits …
From Sam Deane,
your solar power for homes guide,
at www dot go solar power for homes dot com.
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Info/Pic via: Treehugger.com
The Trackback, http://www.gosolarpowerforhomes.com/solar-power-for-homes/top-ten-list-the-2008-innovations-in-solar-power-for-homes-award by Sam Deane, unless otherwise expressly stated, is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 United States License.
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