tag:blogger.com,1999:blog-64028775763228255.post1675549315504707178..comments2023-10-15T11:30:30.750+02:00Comments on My Power Station South Africa: Elon Musk's Tesla Energy Lithium Ion Battery Comments from David LipschitzDavid Lipschitzhttp://www.blogger.com/profile/16552017391450620612noreply@blogger.comBlogger10125tag:blogger.com,1999:blog-64028775763228255.post-78516878901130915542015-06-02T03:43:23.687+02:002015-06-02T03:43:23.687+02:00And cost about R18,000 (US$1,500). So the Tesla ba...And cost about R18,000 (US$1,500). So the Tesla battery is about the same price, but should have lots of great advantages such as lasting 4 ... <a href="http://teslabattery.blogspot.com" rel="nofollow">teslabattery.blogspot.com</a><br />Volkhadhttps://www.blogger.com/profile/11090592253292162549noreply@blogger.comtag:blogger.com,1999:blog-64028775763228255.post-72140058197667553872015-05-12T12:34:00.191+02:002015-05-12T12:34:00.191+02:00Frank D Spencer You didn't ask for the amortis...Frank D Spencer You didn't ask for the amortised LCOE of storage. To do that, you need to calculate the financed cost over the life of the battery. At 5000 cycles, that is about 15 years at one cycle per day. At 9pcnt I think the cost comes out at R1.5/kWh more or less.David Lipschitzhttps://www.blogger.com/profile/16552017391450620612noreply@blogger.comtag:blogger.com,1999:blog-64028775763228255.post-57174557066331727612015-05-12T11:57:06.222+02:002015-05-12T11:57:06.222+02:00One very important point about the Tesla battery i...One very important point about the Tesla battery is that now everyone is finally talking about batteries. Thank you Elon Musk.David Lipschitzhttps://www.blogger.com/profile/16552017391450620612noreply@blogger.comtag:blogger.com,1999:blog-64028775763228255.post-50796092952441245892015-05-12T11:56:35.800+02:002015-05-12T11:56:35.800+02:00kWh in the battery: Depends on the battery. For le...kWh in the battery: Depends on the battery. For lead acid, battery voltage x nominal amp-hr capacity x 50% (as you can't completely discharge a battery. So take a 12V 110Ah battery, 12 x 110 x .8 = 0.66kWh<br /><br />Note that the 80% efficiency is for a LiOn battery, or in Tesla's case a Lithium Air battery.<br /><br />So if the cost of the Tesla battery is R36,000 and the kWh is 7, the cost per kWh is R5,142? I would think that one needs to take the cycles of the battery into account? eg 5000 cycles of 7 kWh each gives, R36,000 / (5000 * 7) / R1.02 per kWh.<br /><br />Then assuming this is right, and the cost of a grid tied PV system assuming Net Metering without a Service Fee is R1.20 per kWh, then does one simply add the R1.20 plus the R1.02 to get the actual cost per kWh? R2.22?<br /><br />If this is the case, then if Eskom put the prices up by 25% later this year, then homeowners will be at grid parity including batteries, of course with the above assumptions.David Lipschitzhttps://www.blogger.com/profile/16552017391450620612noreply@blogger.comtag:blogger.com,1999:blog-64028775763228255.post-25199036004467509212015-05-08T15:13:57.493+02:002015-05-08T15:13:57.493+02:00Thanks Antony. I have fixed the link.
Thanks Andr...Thanks Antony. I have fixed the link.<br /><br />Thanks Andrew Martin. Will look.David Lipschitzhttps://www.blogger.com/profile/16552017391450620612noreply@blogger.comtag:blogger.com,1999:blog-64028775763228255.post-1224046942136878732015-05-08T15:13:41.778+02:002015-05-08T15:13:41.778+02:00Thanks Antony. I have fixed the link.
Thanks Andr...Thanks Antony. I have fixed the link.<br /><br />Thanks Andrew Martin. Will look.David Lipschitzhttps://www.blogger.com/profile/16552017391450620612noreply@blogger.comtag:blogger.com,1999:blog-64028775763228255.post-82125206385007868392015-05-07T10:21:38.722+02:002015-05-07T10:21:38.722+02:00BTW, your link to FreedomWon does not work ( 404 )...BTW, your link to FreedomWon does not work ( 404 )<br />circleorighttps://www.blogger.com/profile/01524938643454567581noreply@blogger.comtag:blogger.com,1999:blog-64028775763228255.post-86326093908441286792015-05-07T10:00:20.383+02:002015-05-07T10:00:20.383+02:00I'd agree with your assertions , Dave, let'...I'd agree with your assertions , Dave, let's hope everyone touting storage has their place in the sun , Tesla's marketing is good and it will grow the pie for everyone IMHO.circleorighttps://www.blogger.com/profile/01524938643454567581noreply@blogger.comtag:blogger.com,1999:blog-64028775763228255.post-28012714846231634102015-05-05T18:57:17.486+02:002015-05-05T18:57:17.486+02:00Heres the difference for the Bosch vs Tesla:
Bosc...Heres the difference for the Bosch vs Tesla:<br /><br />Bosch BPT-S 5 Hybrid<br />Price list – March 2014<br />Bosch BPT-S 5 Hybrid 4.4 kWh $17,718<br />Bosch BPT-S 5 Hybrid 6.6 kWh $21,736<br />Bosch BPT-S 5 Hybrid 8.8 kWh $25,753<br />Bosch BPT-S 5 Hybrid 11.0 kWh $29,771<br />Bosch BPT-S 5 Hybrid 13.2 kWh $33,788<br /><br />For the price of the 8.8kwH Bosch unit you can get a 100KwH Tesla PowerPack!Anonymoushttps://www.blogger.com/profile/07011618337967441235noreply@blogger.comtag:blogger.com,1999:blog-64028775763228255.post-64932761289865425582015-05-03T13:05:27.497+02:002015-05-03T13:05:27.497+02:00Hi David,
What do you think of Bosch's BPT-S ...Hi David,<br /><br />What do you think of Bosch's BPT-S 5 Hybrid product?<br /><br />http://bosch-solar-storage.com/<br /><br />It appears to me to be way ahead techwise of the competition.<br /><br />king regards<br />Colin Nauta<br /><br />Anonymoushttps://www.blogger.com/profile/14299927600393767255noreply@blogger.com