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As great as the idea is, if transmission issues are solved, I don't think I would want to support such a system.
The major problem I see is, that an array like this would be placed outside the path of sunlight hitting Earth. So we would be adding energy (eventually heat, thanks entropy!) to our planet.
Yes yes, the area of a solar array would be minuscule compared to the cross section of the Earth, but when we are worried about 1-2 degree increases in our avg. temp., it seems like every bit counts.
We got plenty of space on the ground here, or roofs, for solar panels. Why worry about the costs and issues with sending panels to space.
@Molbork: I'm pretty sure most of the heat would be dissipated outside of the earths atmosphere and the only heat growth would be from converting the energy to whatever medium it needs to be in.
Second solar panels are much more efficient in space because there is no atmosphere and they can receive sunlight for longer periods of the day, without having to worry about clouds.
Coal would still generate a far larger global warming effect. The only problem is the green energy sources never replace any energy sources their always in addition too. The world uses an increasing amount of energy every year. (population growth, economic growth, new tech).
@Zomb: I don't like burning coal either, but there are other technologies that are in use that could use more funding(loans for solar panels for private homes could be one). No reason to stop research though just to me construction seems unnecessary.
Yes it runs all day and yes there is 4 times more energy per area in space. 1.3k W/m^2 vs ~330 W/m^2(if you adjust your panel for latitude), so it all depends on transmission efficiency. On short distances it's fine, like from one side of the room to the other, I've read that it is up to 75% efficient. But transmitted power is 1/r^s, as in increase the distance by 2, the received power decreases to 1/4 what it was.
Unless technology can raise that efficiency over long distances(atmosphere is like 64miles I think, which is another issue, orbital distance is like what 120 miles+?), I'm not sold on it.
Hmm, I wonder which generates the more clean energy per dollar honestly. The added costs to send panels into space or just making more solar panels. Guess it wouldn't be worked on if the people that believed in the tech didn't think so.
@Molbork: The tech your referring to is resonant induction and its not possible to transmit more than a few feet. I heard Sony recently produced a design with 92% efficiency and demonstrated it powering an LCD.
I honestly have no idea how they would transmit power from a solar panel in space. I don'y think the energy company in the article does either. They just told the company that wants to build one that if they build we'll buy from it. I guess this closer to funding research than it is actual power production.
@Zomb: Supposedly, they would convert the electricity to RF signals in space and send those to a ground station that converts this back to electricity.
Efficiency issues aside, but somehow, building a very large microwave in space doesn't seem like a very good idea...
I remember is SimCity 2000 when the microwave power station would get misaligned and all the people living around it fried. I would love to see that in real life!
According to Kurzweil (the futurist who's accurately predicted the growth of a number of information technologies), in 10 years ground based solar power will cover more than all of our energy needs. Space power in 2016 seems a little pointless...
@Nathan Obbards: Of all the possible issues with space-based power (transmission efficiencies, cost-to-orbit, receiver location) you would have to pick two that aren't actually issues?
I've been a reader of giz for a while now but this motivated me to sign up.
I think it's great that even though this isn't the most advanced technology (yet) people are still willing to get behind it. #printedsolarled
I too, can get behind such an awesome idea of self-contained illumination for the reasons stated in this article, as well as the seemingly infinite constructive uses that can come from this.
Rosa, I have a question:
Do you know if this can be invested in, and if so, which company is behind this seemingly "cutting edge" idea? #printedsolarled
Edited by Soldier_CLE says DON'T STOP AT THE STAR! REVOKE THE WHOLE DAMN THING, OWEN!!! at 11/03/09 8:58 PM
Soldier_CLE says DON'T STOP AT THE STAR! REVOKE THE WHOLE DAMN THING, OWEN!!! was starred
Soldier_CLE says DON'T STOP AT THE STAR! REVOKE THE WHOLE DAMN THING, OWEN!!! was unstarred
P.S Long story. Let's just say that I don't appreciate OP-EDs with no clear allowance of reasonable discussion (especially less respect when abitrary and capreciousness ensues afterwards.)
That said, I appreciate MOST of the Gawker writing and editorial staff. The username extension is nothing more than a retort in protest.
It's actually very rare of me, actually (as many Gawker readers can attest.) #printedsolarled
Soldier_CLE says DON'T STOP AT THE STAR! REVOKE THE WHOLE DAMN THING, OWEN!!! was starred
Soldier_CLE says DON'T STOP AT THE STAR! REVOKE THE WHOLE DAMN THING, OWEN!!! was unstarred
I have my reservations on technologies that can change lives in developing worlds. At the developing countries poor state in terms of just basic infrastructure (sanitation, water, etc.) how are they going to manage all the garbage they end up producing if the developed countries begin introducing these wonderful technologies to them? Will this, and a lot of other great ideas, be a 'too-fast-too-soon' phenomenon? #printedsolarled
@Joseph Lau: 'too-fast-too-soon' is a valid concern, although less valid than it would have been a decade or two ago. 'too-little-too-late' sounds more like it. Surely though, something like this will do more good than harm? #printedsolarled
@Gann: We have to look at the whole of the situation though. For example, some nations in Africa isn't too worried about electricity or lack thereof just because they really haven't developed the dependence of it as we developed nations have. They don't particularly need light at night because their working habits are that they just stop working when the sun goes down and wake up when the sun goes up. That same economy had been successful for thousands of years before even the candle was first used. I really don't think the whole of Africa would drastically increase in productivity overnight if this kind of technology were to be introduced to them.
I'm all for them learning to use new technologies, but at the right time. I would say help the developing nations sustain their basic infrastructures like water, sanitation and electricity supply first, then move on to roads and buildings, then we can talk more about new technologies and the conveniences that they provide. #printedsolarled
@Joseph Lau: You make good points, but you are contradicting yourself a little. You say they don't need electricity, then go on to say we need to "help them sustain their basic infrastructures like water, sanitation and electricty supply first..." This innovation addresses that last point rather well.
Also, I would argue that production would, in fact, start increasing overnight.
@Gann: I'm talking about those who already have electricity should work on their basic infrastructure. Rwanda is a good example where electricity exists and there is a dependence on it - however the infrastructure is not there to support it long-term. Rural China is also another good example. But those who don't live or depend on electricity shouldn't be introduced to electricity so quickly. If they actually have a need for electricity, sure, but further study of those populations would determine that.
Many tribes live without electricity for hundreds of years. What makes us - the so called 'developed' nations - think that electricity is better for them?
Perhaps I should have defined those difference better.
Nice post, if only there were more innovative people working on these types of things instead of military strength, then we might be getting somewhere. #printedsolarled
Great post Rosa... this is the kind, like solar charging cell phones, and micro loans, that will really help make a difference in people's lives. #printedsolarled
12/04/09
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The major problem I see is, that an array like this would be placed outside the path of sunlight hitting Earth. So we would be adding energy (eventually heat, thanks entropy!) to our planet.
Yes yes, the area of a solar array would be minuscule compared to the cross section of the Earth, but when we are worried about 1-2 degree increases in our avg. temp., it seems like every bit counts.
We got plenty of space on the ground here, or roofs, for solar panels. Why worry about the costs and issues with sending panels to space.
12/04/09
Second solar panels are much more efficient in space because there is no atmosphere and they can receive sunlight for longer periods of the day, without having to worry about clouds.
Coal would still generate a far larger global warming effect. The only problem is the green energy sources never replace any energy sources their always in addition too. The world uses an increasing amount of energy every year. (population growth, economic growth, new tech).
12/04/09
Yes it runs all day and yes there is 4 times more energy per area in space. 1.3k W/m^2 vs ~330 W/m^2(if you adjust your panel for latitude), so it all depends on transmission efficiency. On short distances it's fine, like from one side of the room to the other, I've read that it is up to 75% efficient. But transmitted power is 1/r^s, as in increase the distance by 2, the received power decreases to 1/4 what it was.
Unless technology can raise that efficiency over long distances(atmosphere is like 64miles I think, which is another issue, orbital distance is like what 120 miles+?), I'm not sold on it.
Hmm, I wonder which generates the more clean energy per dollar honestly. The added costs to send panels into space or just making more solar panels. Guess it wouldn't be worked on if the people that believed in the tech didn't think so.
12/04/09
I honestly have no idea how they would transmit power from a solar panel in space. I don'y think the energy company in the article does either. They just told the company that wants to build one that if they build we'll buy from it. I guess this closer to funding research than it is actual power production.
12/04/09
Efficiency issues aside, but somehow, building a very large microwave in space doesn't seem like a very good idea...
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Sigh, what a horrible movie
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Space? That's really expensive right now.
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I think it's great that even though this isn't the most advanced technology (yet) people are still willing to get behind it. #printedsolarled
11/03/09
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Rosa, I have a question:
Do you know if this can be invested in, and if so, which company is behind this seemingly "cutting edge" idea? #printedsolarled
11/03/09
PS: Yikes, that's quite the username. #printedsolarled
11/03/09
P.S Long story. Let's just say that I don't appreciate OP-EDs with no clear allowance of reasonable discussion (especially less respect when abitrary and capreciousness ensues afterwards.)
That said, I appreciate MOST of the Gawker writing and editorial staff. The username extension is nothing more than a retort in protest.
It's actually very rare of me, actually (as many Gawker readers can attest.) #printedsolarled
11/03/09
11/03/09
11/18/09
I'm all for them learning to use new technologies, but at the right time. I would say help the developing nations sustain their basic infrastructures like water, sanitation and electricity supply first, then move on to roads and buildings, then we can talk more about new technologies and the conveniences that they provide. #printedsolarled
11/18/09
Also, I would argue that production would, in fact, start increasing overnight.
12/09/09
Many tribes live without electricity for hundreds of years. What makes us - the so called 'developed' nations - think that electricity is better for them?
Perhaps I should have defined those difference better.
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