Live data from Hacker News

Tesla Motors Livestream

teslamotors.com

41–50 of 90 posts

Re: Tesla Motors Livestream

#42
post #3

It'll be interesting to see how this is pitched and what it's price point is... I'm still not convinced that energy arbitrage is profitable enough for individual homes given the current cost of the storage.

It really depends on where you live. In places like Arizona, this unit could pay for itself in a matter of a few years. Even if it is only used as a load shifter, it could generate great savings during the summer/hot months.

Re: Tesla Motors Livestream

#43
Is anyone else having the video stop with a buffering spinner and little or no network activity a few seconds after starting the stream?

EDIT: I ended up working around it by switching between the two lowest quality settings each time the stream hung. Disabling Adblock Plus on the page and adding Flashblock exceptions had no effect.

Re: Tesla Motors Livestream

#46
post #25

The details are up on the site: http://www.teslamotors.com/presskit/teslaenergy The Powerwall is available in 10kWh, optimized for backup applications or 7kWh optimized for daily use applications. Both can be connected with solar or grid and both can provide backup power. The 10kWh Powerwall is optimized to provide backup when the grid goes down, providing power for your home when you need it most. When paired with s…

> The details are up on the site: http://www.teslamotors.com/presskit/teslaenergy

I'm just seeing the normal Tesla homepage. Did they take it down to avoid stealing the thunder from the livestream?

EDIT: Back up now

Re: Tesla Motors Livestream

#47

Serious question: Can anybody who's familiar with the energy storage field explain the nature and magnitude of the innovation here. Is this just a large lithium ion battery with some electronics added for charge/discharge control or is it a bigger deal than that? Perhaps the innovation is in packaging and productizing it for the various market segments?

I think that the driver behind this is to create synergy across tesla and Solar City. Solar City gets requests for storage, and the financing to distribute it, and the giga-factory has a lot of surplus production.

Re: Tesla Motors Livestream

#48
post #25

The details are up on the site: http://www.teslamotors.com/presskit/teslaenergy The Powerwall is available in 10kWh, optimized for backup applications or 7kWh optimized for daily use applications. Both can be connected with solar or grid and both can provide backup power. The 10kWh Powerwall is optimized to provide backup when the grid goes down, providing power for your home when you need it most. When paired with s…

Meanwhile, in lead acid battery land, a Trojan T-105 is ~$150 for a 6 volt, 225 amp hour battery, which you might comfortably cycle 0.9kWh each day for 5+ years. Use 12 of them to match the 10kWh Powerwall and it only costs $1800, replace them at the end of 5 years and you have about the same cost as the 10 year Powerwall. Powerwall is several times smaller and lighter and presumably doesn't give off hydrogen gas when you charge it or burst and flood your room with sulphuric acid if you get to freezing temperatures with a discharged battery bank (done that), so there are certainly plusses.

It just isn't the silver bullet I was hoping for. I've been putting off replacing my batteries in a cabin while I wait for this, I suppose I'll nurse them through the Summer and make a decision in the Fall.

Re: Tesla Motors Livestream

#49
post #25

The details are up on the site: http://www.teslamotors.com/presskit/teslaenergy The Powerwall is available in 10kWh, optimized for backup applications or 7kWh optimized for daily use applications. Both can be connected with solar or grid and both can provide backup power. The 10kWh Powerwall is optimized to provide backup when the grid goes down, providing power for your home when you need it most. When paired with s…

Does anyone have any experience with the pricing here and could elaborate a bit wether or not this is a good deal? This does seem enticing at first glance, but I am unfamiliar with any hidden costs there might be in going with a solar + backup system such as this.

$3,000 for 7kwh and $3,500 for 10, both sound unbelievable to me. My first thought is there's a missing zero on the end.

Recently had a quote in Australia for >$AUD12,000 for a 5kwh battery set.

This is going to change everything to do with solar installations I think. Currently battery packs are a rarely taken up optional component.

Re: Tesla Motors Livestream

#50
post #25

The details are up on the site: http://www.teslamotors.com/presskit/teslaenergy The Powerwall is available in 10kWh, optimized for backup applications or 7kWh optimized for daily use applications. Both can be connected with solar or grid and both can provide backup power. The 10kWh Powerwall is optimized to provide backup when the grid goes down, providing power for your home when you need it most. When paired with s…

For context, how much does a typical household use? Assume a central A/C, 4 tv's, fridge, washing machine, etc.
Post reply on HN