Deleted
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Post by Deleted on May 8, 2015 11:48:35 GMT -5
Yes. Ultimately, it comes down to three things (maybe a fourth)
1. Energy (kilowatt/hours) (vxAxt) 2. Cost of system 3. additional benefits a. Societal (help balance grid demand) b. Personal (increase resiliency and availability of electrical supply at customer premises) - POWER OUTAGES go bye bye 4. Does investing in this help move the world in a direction you think is positive (optional) As far as "b" is concerned, portable generators have been around for a long time.
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jkapp
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Post by jkapp on May 8, 2015 21:58:36 GMT -5
Heck even Tesla admits their battery is not for residential solar power usage...it currently only lasts for 60 recharge cycles. So if you used the power every day, and then recharged it every day, you would need to replace it about every two months.
An interesting technology, but still WAAAAAAAYYYY far off from practical usage.
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EVT1
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Post by EVT1 on May 8, 2015 23:23:12 GMT -5
Heck even Tesla admits their battery is not for residential solar power usage...it currently only lasts for 60 recharge cycles. So if you used the power every day, and then recharged it every day, you would need to replace it about every two months.
An interesting technology, but still WAAAAAAAYYYY far off from practical usage. So don't buy one.
But 60 recharge cycles- where the hell did you get that idea? Methinks that is Bovine Scatology.
New batteries are on the deck with almost instant recharge times and next to no degradation in materials. Again- don't buy one.
One thing is for sure- the fossil fuel die hards are going to die soon enough when they pry that last piece of coal out of your cold dead hand
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EVT1
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Post by EVT1 on May 8, 2015 23:25:22 GMT -5
Well, I finally pinned it down. A "powerwall" is 35 units. This raises his projected price to $35,000, and thus cements this as yet another promise of a solution to a problem which doesn't exist: the need to "save the planet" from abundant, cheap, powerful so-called "fossil fuels". You could run 100 houses on the methane emissions of this post alone
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AgeOfEnlightenmentSCP
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Post by AgeOfEnlightenmentSCP on May 9, 2015 7:09:30 GMT -5
$7 trillion every 10 years, not accounting for the battery degradation over 10 years. Not an energy solution.
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jkapp
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Post by jkapp on May 9, 2015 10:29:32 GMT -5
Heck even Tesla admits their battery is not for residential solar power usage...it currently only lasts for 60 recharge cycles. So if you used the power every day, and then recharged it every day, you would need to replace it about every two months.
An interesting technology, but still WAAAAAAAYYYY far off from practical usage. So don't buy one.
But 60 recharge cycles- where the hell did you get that idea? Methinks that is Bovine Scatology.
New batteries are on the deck with almost instant recharge times and next to no degradation in materials. Again- don't buy one.
One thing is for sure- the fossil fuel die hards are going to die soon enough when they pry that last piece of coal out of your cold dead hand
Ask the CEO, he's the one who stated it!
PLus the fact that these new batteries aren't compatibale with solar energy systems makes them not a good off-the-grid product.
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EVT1
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Post by EVT1 on May 9, 2015 10:42:32 GMT -5
So don't buy one.
But 60 recharge cycles- where the hell did you get that idea? Methinks that is Bovine Scatology.
New batteries are on the deck with almost instant recharge times and next to no degradation in materials. Again- don't buy one.
One thing is for sure- the fossil fuel die hards are going to die soon enough when they pry that last piece of coal out of your cold dead hand
Ask the CEO, he's the one who stated it!
PLus the fact that these new batteries aren't compatibale with solar energy systems makes them not a good off-the-grid product.
You should provide the link- you made the claim- but there is obviously more to the story or how they are supposed to function because a system you would have to replace every two months makes no sense at all.
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AgeOfEnlightenmentSCP
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Post by AgeOfEnlightenmentSCP on May 9, 2015 11:26:58 GMT -5
Ask the CEO, he's the one who stated it!
PLus the fact that these new batteries aren't compatibale with solar energy systems makes them not a good off-the-grid product.
You should provide the link- you made the claim- but there is obviously more to the story or how they are supposed to function because a system you would have to replace every two months makes no sense at all. jkapp is wrong. It's 50. www.bloomberg.com/news/articles/2015-05-06/tesla-s-new-battery-doesn-t-work-that-well-with-solar
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EVT1
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Post by EVT1 on May 9, 2015 13:00:26 GMT -5
Well now it makes sense- the larger version is only for occasional use- and that is 50 cycles per year so jkapp is as wrong as I thought he was
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Deleted
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Post by Deleted on May 14, 2015 11:26:09 GMT -5
Well now it makes sense- the larger version is only for occasional use- and that is 50 cycles per year so jkapp is as wrong as I thought he was For $500/700 you can buy a portable gasoline generator for the occasional longer term power outage. I have a two generator system. A small one for base load backed up by a larger one for heavy load usage times. The whole setup cost 1/4 the price of that battery system. I've only used it once for a long term outage (ice storm, 2009) of two weeks for less than $80 total fuel cost. A couple of other times for a few hours over the last 15 years. Until battery efficiency goes up and the price goes down, those battery systems will only sell to the niche market of people wanting to make some kind of statement. Or that don't know any better.
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