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Tesla Energy

teslamotors.com

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Re: Tesla Energy

#111

Post by vonklaus »

aerovistae wrote: post #101

Hey, for fun let's use this to do a rough math check on Tesla's future plans. The battery is $3500 for 10kWh. Model S with a 270kWh battery is advertised with a range of 240mi. Model 3 aims for a minimum range of 200mi, or 5/6, a.k.a. 225kWh battery. 225 is 22.5 * 10. 22.5 * $3500 = $78,750. Model 3 is supposed to be $35,000. I believe in Elon Musk completely and I want nothing more than to see him succeed and I have…

I am not really sure what you are calculating here. That being said I am pretty sure that the model s has a 270mi RANGE, not a 270kWh battery. It has a few options, like 85kWh or 70kWh. It has been published that the model 3 will have a smaller battery, and be a smaller car. Being more efficient at the vehicle level, coupled with cost savings of vertical integration, will allow use of a smaller and cheaper battery.

Re: Tesla Energy

#112

Post by digitalzombie »

How hacker friendly is this?

I'm not crazy enough to do anything fancy. But I would like to build some metric system to see the data and usages. If I can some how hack it so that it keep track of which devices uses the Tesla battery the most.

Re: Tesla Energy

#113

Post by kondro »

toomuchtodo wrote: post #97
kondro wrote: post #92

Earlier quoted context omitted.

2 is not enough. 4kW seems to be the maximum potential drain from the battery. That wouldn't power an oven… let alone anything else at the same time. 4kW inverters seem to be around the $1000 mark… but they don't seem to increase linearly (10kW inverter $4000 for example). Of course you could go totally off-grid, but the cost isn't going to be just $7k… it's likely to be at least $15-20k by the time you get everythin…

> At that price, you could've bought a larger capacity deep-cycle storage solution already readily available on the market with batteries that will last 20+ years. Citation? Deep cycle lead acid batteries have a maximum life expectancy of 5-8 years, even if aggressively managed.

Iron Edison talks about their Ni-Fe batteries lasting 25+ years.

http://ironedison.com/iron-edison-usa-series-nickel-iron-nif...

Re: Tesla Energy

#114

Post by notatoad »

hayksaakian wrote: post #67
davidw wrote: post #48

> 7kWh or 10kWh Can anyone speak to what that could power? Could I run a load of laundry with it? How about dry it afterwards? Here in Italy people mostly take advantage of "solar power" by hanging clothes to dry, but just to get an idea of what the battery could run.

that would be an interesting comparison. could you (eventually) save time and money by using an electric dryer + solar power + battery as opposed to hanging out clothes?

Not as long as you're connected to the grid, and the energy you're wasting could have otherwise been sold.

Re: Tesla Energy

#115

Post by frik »

I would like to buy one. Can we use it in Western Europe? Will it be certified for the EU power grid network? How long will the battery last (expected battery life)? About 7-8 years would be the minimum, but is that the lifespan of lithium batteries?

Re: Tesla Energy

#116

Post by toomuchtodo »

kenrikm wrote: post #68
davidw wrote: post #48

> 7kWh or 10kWh Can anyone speak to what that could power? Could I run a load of laundry with it? How about dry it afterwards? Here in Italy people mostly take advantage of "solar power" by hanging clothes to dry, but just to get an idea of what the battery could run.

To put it in perspective: in Florida, in the summer, using a 4ton very old/inefficient AC in a 2000sqft house in 100 degree summer weather, electric oven, refrigerator, washer/dryer and all other household stuff. I would burn about 3kw / hr in the middle of the day. So in theory the 10kwh would power a extreme case like this for ~3hours, and 9 of them could do it for ~27hrs. So yes you could do everything you would n…

Moving to geothermal heat pump for the AC would drastically drop your peak power consumption.

As a fellow (part-time) Florida resident, I'd encourage you to send a comment in to the Florida Public Service Commission:

"The Florida Public Service Commission (FPSC) staff is gathering information regarding enhancing development of solar technologies in Florida. To this end, we encourage individuals, businesses, and utilities to provide input on demand-side and supply-side policies and programs, and any other information that would be useful to the FPSC. Comments should be limited to 20 pages, excluding attachments.

The comments are due to Lee Eng Tan via e-mail at LTan@psc.state.fl.us on June 23, 2015 by 5:00 pm. Please note that comments provided to the FPSC will be public record and will be posted to the FPSC’s website."

http://www.floridapsc.com/utilities/electricgas/solarenergy/...

Re: Tesla Energy

#117

Post by Qualman »

prostoalex wrote: post #47

This was offered to SolarCity customers in late 2014, I see that the image here http://www.solarcity.com/residential/backup-power-supply now reflects Tesla branding.

Thing looks like a giant Apple Magic Mouse[1] bolted to your wall.

[1]: http://store.storeimages.cdn-apple.com/4572/as-images.apple....

Re: Tesla Energy

#118

Post by toomuchtodo »

kondro wrote: post #113
toomuchtodo wrote: post #97

Earlier quoted context omitted.

> At that price, you could've bought a larger capacity deep-cycle storage solution already readily available on the market with batteries that will last 20+ years. Citation? Deep cycle lead acid batteries have a maximum life expectancy of 5-8 years, even if aggressively managed.

Iron Edison talks about their Ni-Fe batteries lasting 25+ years. http://ironedison.com/iron-edison-usa-series-nickel-iron-nif...

But do they actually warranty them for that long? I could find no mention of a warranty on their site.

Re: Tesla Energy

#120

Post by BorisMelnik »

kondro wrote: post #119

So why not solar power (1kW), storage (3.6kWh) with 25+ year life, inverter (2.8kW) and other electrical systems for just USD$8,702. The batteries are only USD$2,910 of that. http://ironedison.com/edison-power-plus-system

You are probably right, and from a quick technical comparison it looks like a much better deal. Definitely not an expert in this field.

At the end of the day Tesla is generating mounds of press, and as a result will probably sell (or in this case reserve) more units.

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