What is Digg?31 Comments
- fwc67, on 08/17/2008, -2/+16dugg for the other breakthroughs, not the 0.1%
- brad3378, on 08/17/2008, -2/+9Good - Now let's work on lowering the record for the cost per watt.
- B08ama, on 08/17/2008, -1/+5That's great to know, but I find this more efficient: http://cleantechnica.com/2008/08/11/nanoantenna-ar ...
- boneit, on 08/17/2008, -1/+4Indeed. I'm willing to stump up ~$20k to move over and feed the grid during the day and suck back at night, but I'd need about $40k of panels, and we're low power users compared to our neighbors. The cost per Watt hasn't dropped over the last five years. Where's the incentive for those that want to change? Where are these roof panels that happen to perform PV duties too? ***** me, they've been hyped for over two years now. Can you buy them? Like *****!
Although the ***** summer we've had in FL this year would render the panels near useless anyway. Even our solar hot water has needed boosting from the electric boiler. A decent day in the summer sun would normally give us three days of hot water in cloudy conditions, solar hot water can get ***** hot because it's not cut off when it reaches a set temperature, therefore you use less. This summer we're all have luke warm showers or having to flick the switch. - askantik, on 08/18/2008, -0/+2Well why didn't YOU upload it do Digg?
- sering, on 11/25/2008, -0/+1that's nice
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http://dianika.com/insurance/ - cocoabear, on 08/17/2008, -0/+1Are you maybe thinking of this? http://features.csmonitor.com/innovation/2008/06/1 ...
It's a steam system. Currently there exists no photovoltaic cell more efficient than 40.8%, and no total PV system that exceeds 30% efficiency. - cocoabear, on 08/17/2008, -0/+1more efficient yes, but they suffer from one fundamental drawback (FTA): "in fact, scientists still don’t know how to convert energy from the devices into electricity."
So you can't really compare the two technologies yet because one works and one doesn't - twiztidsinz, on 08/17/2008, -1/+2Didn't they have a breakthrough where they were getting over 60% by using a lens, but there was a problem with it so the people at (i think) MIT developed a new heat resistant/dissipating paint?
- b0rg, on 08/17/2008, -1/+2This one sounds like it might - it works best with concentrated light, so it would probably involve a smaller PV device per watt, and a largish-but-cheap set of reflectors.
Not to mention the manufaturing of solar panels involves some nasty compounds. Having smaller panels might mean less cost in manufacturing, lower distribution cost, and maybe even more creative installations being possible, and even a lower cost of removing the panel when it has either failer or served it's useful lifespan. - ddgromit, on 08/17/2008, -1/+2The writer of this article is all over the place. Focus man!
- SolarPandaBot, on 08/19/2008, -0/+1While the breakthrough is a nice step towards higher efficiency solar cells, I don't believe that this is "an entirely different system to split the wavelengths." Rather, it seems to be the same architecture but with different materials.
- Culyt, on 08/18/2008, -0/+10.1% is still important, think of the power plants that build hundreds of these things.
Also since its an entirely new design over the %40.7 one which is likely to be fairly optimised already, they might be able to optimise it further.
☢ - SolarPandaBot, on 08/19/2008, -0/+1That paper actually describes the architecture behind a supposed 42.8% efficient cell, which has not yet been independently verified (http://www.renewableenergyworld.com/rea/news/story ...
- Filmore, on 08/18/2008, -0/+1The internet delivers: http://www.udel.edu/iec/Publications/DARPA_22nd_EU ...
- Peter88, on 08/18/2008, -0/+1good. thanks
- twiztidsinz, on 08/18/2008, -0/+1Yes, I do believe that's it.
- boneit, on 08/23/2008, -0/+0Yes, that's good point but they're clean. I do them a couple of times a year and they don't get that crapped up really. Just the odd bird poo. We're really having a cloudy summer. Normal years we'll have hot sun all day then around 14:30 a monster thunder-storm will drown the place for 30-40 minutes. The back to sun. These days we have cloud like OR or the UK. Fortunately FL water temperature is pretty warm anyway. It must be in 70-80F from the cold tap most of the time.
One clear sunny day will give us three days of hot water. We don't even get to that level. It's like we're in catch-up mode all the time. - 13B1303, on 08/17/2008, -2/+2Solar Sterling engine still wins when you have to get that power back to the grid.
- emt1451, on 08/17/2008, -1/+1Wow this stuff is like totally cool and like way interesting. Wow man!
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- skintigh, on 08/17/2008, -3/+0Have you cleaned the panel lately? I thought they work under the conditions you mention, maybe it's covered in pollen or something...
- homescrubb, on 08/17/2008, -8/+3Christ... this was on reddit 2 whole days ago. Don't get me wrong, its an interesting article and solar power is indeed the future... but MrBabyMan or someone needs to step up their game and get this ***** on here quicker.
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