61–70 of 90 posts
Musk's delivery style is so refreshing compared to the Steve Jobs clones on every stage. He's knowledgeable, charming, funny. Great stuff.
It is this reason alone why I'd never buy a tesla.
Earlier quoted context omitted.
According to the EPA [1], an average home consumed 12,069kWh in 2012. So assuming a constant load, a 10kWh battery would power about 7.5 hours of usage. [1]: http://www.epa.gov/greenpower/pubs/calcmeth.htm
So if I'm reading this right - if I bought a Powerwall from Tesla and hooked it up to some solar panels, my power bill would DRASTICALLY decrease?
Earlier quoted context omitted.
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 whe…
You need 20, not 12, don't you? 6V*20 = 120V edit: the Powerwall runs at 350-450V, 5 amps nominal. Guess it depends on the inverter you use.
What matters is the energy capacity, which is measured in kWh.
Earlier quoted context omitted.
According to the EPA [1], an average home consumed 12,069kWh in 2012. So assuming a constant load, a 10kWh battery would power about 7.5 hours of usage. [1]: http://www.epa.gov/greenpower/pubs/calcmeth.htm
So if I'm reading this right - if I bought a Powerwall from Tesla and hooked it up to some solar panels, my power bill would DRASTICALLY decrease?
And they're viewing it as another product.
Earlier quoted context omitted.
According to the EPA [1], an average home consumed 12,069kWh in 2012. So assuming a constant load, a 10kWh battery would power about 7.5 hours of usage. [1]: http://www.epa.gov/greenpower/pubs/calcmeth.htm
So if I'm reading this right - if I bought a Powerwall from Tesla and hooked it up to some solar panels, my power bill would DRASTICALLY decrease?
Earlier quoted context omitted.
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 whe…
You need 20, not 12, don't you? 6V*20 = 120V edit: the Powerwall runs at 350-450V, 5 amps nominal. Guess it depends on the inverter you use.
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?
The innovation is all in the price.