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#11
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Space Solar Power Looks For Shortcuts
heres another issue, SSP would require lots of launches. Wonder what
the cost of mass produced falcons would be? we need 500 launched at a rate of a 100 per year.. whats your cost to orbit? plus such a large order of launchers could piggyback other users, so it might be 700 launchers, attracted by the low price this sort of demand would be ground breaking since theres never been a real mass production line of launchers... perhaps a larger falcon or some other launcher would be better suited, but you should get the idea |
#13
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Space Solar Power Looks For Shortcuts
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#14
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Space Solar Power Looks For Shortcuts
On Nov 1, 7:23*am, Jeff Findley wrote:
In article 5b1b4a84-b82c-476d-a0ba- , says... On Oct 31, 4:58*pm, David Spain wrote: Took a quick look, not clear to me if these average 'retail' prices are for just generation or include generation + distribution + etc. Distribution charges would not change even for SPS. My $0.08/kWH figure is for generation only (as it gets broken down on my electric bill). Actually last bill shows $0.071/kWH and supposedly (according to what I read in the paper) my part of the country has one the highest generation charges per customer that there is. So depending upon where you live your numbers could be even lower, which is worse for SPS; which when I last checked range from an unrealistically optimistic (IMHO) $1 to (still low) $6/kWH. Quite a spread and that's just a crude estimate from largely hand-waving. Just to give folks and idea of what we are talking about. My avg. monthly consumption is currently running about 50kWH but goes higher in cold weather. these numbers of costs per KWH will all change once a nuke plant melts down in the US.... this event is guaranteed to occur in the future because nothing man makes works perfectly Wipe out a big part of our country will make SSP a sudden favorite Sorry chicken little, but even if *your* worst nuclear power plant accident happened in the US *and* all nuclear power plants shut down for good, there are still many other terrestrial sources of power that are much cheaper than today's predicted cost for SPS. Jeff -- laugh if you want but its not over till the fat lady sings........ once a chunk of our country cant be lived in for many generations the people will demand safe options and SSP will likely be top on a green agenda. |
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Space Solar Power Looks For Shortcuts
On Nov 1, 7:25*am, Jeff Findley wrote:
In article 7e0e8368-6f26-4cbd-b800-9e08e1c879b4 @j12g2000vbm.googlegroups.com, says... heres another issue, SSP would require lots of launches. Wonder what the cost of mass produced falcons would be? we need 500 launched at a rate of a 100 per year.. whats your cost to orbit? plus such a large order of launchers could piggyback other users, so it might be 700 launchers, attracted by the low price this sort of demand would be ground breaking since theres never been a real mass production line of launchers... perhaps a larger falcon or some other launcher would be better suited, but you should get the idea Expendables won't lower launch costs enough. *There is a reason SpaceX is (slowly) working on reusability. Jeff theres never been a space booster built in large quanties, as a ongoing production run for many years 700 vehices would make a ton of difference cost wise |
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Space Solar Power Looks For Shortcuts
On 10/31/2012 8:39 PM, bob haller wrote:
On Oct 31, 4:58 pm, David Spain wrote: Distribution charges would not change even for SPS. My $0.08/kWH figure is for generation only (as it gets broken down on my electric bill). Actually last bill shows $0.071/kWH and supposedly (according to what I read in the paper) my part of the country has one the highest generation charges per customer that there is. So depending upon where you live your numbers could be even lower, which is worse for SPS; which when I last checked range from an unrealistically optimistic (IMHO) $1 to (still low) $6/kWH. Quite a spread and that's just a crude estimate from largely hand-waving. Just to give folks and idea of what we are talking about. My avg. monthly consumption is currently running about 50kWH but goes higher in cold weather. Dave these numbers of costs per KWH will all change once a nuke plant melts down in the US.... this event is guaranteed to occur in the future because nothing man makes works perfectly Wipe out a big part of our country will make SSP a sudden favorite I disagree. We have an example. The Three Mile Island Nuclear Electric Plant near Harrisburg, PA suffered a partial meltdown in one of its two reactors in March 1979 and it didn't effect my electric utility rates by one penny, then or now. So historically speaking, based on actual facts, you are wrong in this case. A significant fraction of the electric power I receive is generated by a nuke. I've been paying for its decommissioning since it came on-line and in fact that charge is about to go away as the fund has started to near its cap. I have a feeling this plant is going to get a license extension anyway, it is too vital to the region. BTW i should have said my avg monthly consumption must be about 50kWH / day. I just did the math, I have to multiply by 30 days to get a figure close to what my utility bill is per month, based on that $0.08 figure. I would say the vast majority of that is due to my refrigerator! Maybe time for an upgrade? Dave |
#17
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Space Solar Power Looks For Shortcuts
On Nov 1, 9:48*am, David Spain wrote:
On 10/31/2012 8:39 PM, bob haller wrote: On Oct 31, 4:58 pm, David Spain wrote: Distribution charges would not change even for SPS. My $0.08/kWH figure is for generation only (as it gets broken down on my electric bill). Actually last bill shows $0.071/kWH and supposedly (according to what I read in the paper) my part of the country has one the highest generation charges per customer that there is. So depending upon where you live your numbers could be even lower, which is worse for SPS; which when I last checked range from an unrealistically optimistic (IMHO) $1 to (still low) $6/kWH. Quite a spread and that's just a crude estimate from largely hand-waving. Just to give folks and idea of what we are talking about. My avg. monthly consumption is currently running about 50kWH but goes higher in cold weather. Dave these numbers of costs per KWH will all change once a nuke plant melts down in the US.... this event is guaranteed to occur in the future because nothing man makes works perfectly Wipe out a big part of our country will make SSP a sudden favorite I disagree. We have an example. The Three Mile Island Nuclear Electric Plant near Harrisburg, PA suffered a partial meltdown in one of its two reactors in March 1979 and it didn't effect my electric utility rates by one penny, then or now. So historically speaking, based on actual facts, you are wrong in this case. A significant fraction of the electric power I receive is generated by a nuke. I've been paying for its decommissioning since it came on-line and in fact that charge is about to go away as the fund has started to near its cap. I have a feeling this plant is going to get a license extension anyway, it is too vital to the region. BTW i should have said my avg monthly consumption must be about 50kWH / day. I just did the math, I have to multiply by 30 days to get a figure close to what my utility bill is per month, based on that $0.08 figure. I would say the vast majority of that is due to my refrigerator! Maybe time for an upgrade? Dave the three mile incident realeased near no radiation outside of the plant. and theres still that MINOR problem of used fuel disposal that hasnt been solved now just imagine a nuke plant melting down near a major city,. most plants are near big citys and the US has those GE plants like fukashima with elevated waste core storage pools, a excellent terrorist target, the storage pools hold hundreds of times the radiation in a operating reactor and the buildings arent hardened at all. imagine new york city having to be permanetely evacuated? one incident like this will drive space solar power, or just a few more years of global warming driven severe storms....... |
#18
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#19
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#20
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Space Solar Power Looks For Shortcuts
On 11/1/2012 10:29 AM, bob haller wrote:
one incident like this will drive space solar power, or just a few more years of global warming driven severe storms....... Do the math; at $6/kWH x 50 kWH/day x 30 days... I'll be living in a kerosene powered Yurt at those prices.... http://en.wikipedia.org/wiki/Yurt Dave |
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