Tesla energy Powerwall 2 works for solar backup too pricey home backup?

Tesla energy Powerwall 2 works for solar backup too pricey home backup?


Green this is greg patello phenotype
today’s talk focuses on what’s going on with the powerwall truth from Tesla who
drew the ISA state from Kemal silence basket niihama bonjour law wouldn’t die
this is great for Tesla fan inside one of the areas that I kind of stay away
from in our coverages was going on with the solar room as well as the power
level in January of 2017 I visited the Tesla facilities in Washington DC and
asked the attendant about the cost of the power wall I what kind of
performance one could expect so that person indicated to me that is $5,000
for power wall and that the you could have no expectation that the electricity
stored in the power wall could be used one power could be used to power your
vehicle any investment of an emergency so I kind of lost interest because I was
thinking the value proposition is kind of low there if you have a $5,000 and
there’s not enough stored electricity to maybe carry our house and vehicle for
lunch our cycle so I kind of revisited the situation over the last few weeks in
the same location and I was fascinated because I’ve got some more data on the
power wall to number one each unit cost about $5,000 number two out of those
units can be attached up to ten units together
at the same time to perform together to provide backup power to a user number
three there are information charges that go along with this you know my sense was
some one or two or five thousand dollar range is what everything installed would
involved I guess number four is bed and my biggest surprise was that while next
to an IVP model X the power over the sitting there which is a 14 feet W and I
asked the Tesla representative you know about sort of what the conversion was
like and this person with the man said look the power of 14 kilowatt hours 90
feet requires 92 hours to be full so you can do the math on how many of those you
would need to power your vehicle and possibly even power your house beyond
that and I was kind of shocked so basically the numbers you know let’s say
five as five or six units would cover when you need and it’s 5,000 apiece
they’re talking you know 30 or 40 thousand dollars to provide enough
backup power so that
you can actually power up your car from I was kind of fuzzy on whether how I
felt about your proposition and the reason is that for fiber
cleaning brand if your goal is to present a power arch and not having
power in their location I thought naturally asked made a lot more sense
than that the powerful solution that was presented is beautiful that sort of
popped the line was if you’re going to spend 30 or 40 thousand dollars for
backup power that’s almost the price of a car and one person that comes to mind
is do you buy extra copper and charge it up and if you have any power issues you
could use the backup car pal at their house and your other business that
doesn’t exist in the solution currently but I believe that you know we go spend
all that money you made sense to consider that kind of a solution i think
that you know i think as i looked up responsive customers i want to express
my the fact that there are a number of people waiting for their solutions to be
installed i think that if you have the solar
panels already and then you’re looking for place to put that power so you can
use it at your leisure i think it totally makes sense but i was
hard pressed potatoes numbers shows great value more customers i have to
admit i’m a huge amount to say I’m looking forward to comments made by
users but you know between the so root and then attaching that to a
power-law I just I think it’s crazy and I’m wondering if natural gas this is a
better value solution than trying to get your backup power down by using the
power logs but they are available they are being
purchased by customers there’s a viable solution but I just feel like at those
price points it’s a little bit too expensive to make it competitive with
high quality alternatives this is gray participant insight thank you for taking
time out once again choose food for gratitude or the heat or dolphins Shalom
Salaam aleikom look forward to our next conversation thanks never birthday

9 thoughts on “Tesla energy Powerwall 2 works for solar backup too pricey home backup?

  1. Gregg I think you have been missed informed. For an average 3 bedroom home with solar all you need is two powerwalls to totally power your home at night with much to spare. Remember you only using the batteries on the evening till the morning. And, as for your electric car you will only be charging your daily use, an average of 15-20kwH, you're not charging your car on empty every night, just what you use on your daily commute. Plus, you only want to charge your car from 20% to 80% to keep your battery in good health.

  2. The average home doesn't need 14 kWh of battery storage. I think that Tesla made an improvevement that priced themselves out of a lucrative market. I asked them if they would make smaller versions and they responded no. I think that most people are looking for between 3 and 8 kWh of storage. I agree with Floyd Albert that Gregg made a mistake in calculations, and you are wrong to bring in natural gas into the picture. My God, we are trying to put natural gas back to the Stone Age and move into the future.
    I will be moving into a new residence in Switzerland built by Marc Ponzio in Thierrens. He is proposing a Tesla Powerpack of 650 kWh of storage, along with 25 parking places each with a Tesla charger. We will try to have a real life example of a V2G system, but I am sure that it will take a lot of work and coordination of many groups. I think that I will start a Blog to document the trials and tribulations, I will keep you informed.

  3. $5500 (+ installation) is expensive, no doubt. However, the alternatives are not cheap either. Tesla's battery is by far the cheapest Liion. To get 14kWh with lead acid its about $2000 – $2500 but plus cost of charger and inverter which are built into the powerwall. Also, lead acid requires some maintenance and you really don't want to run them completely dead (would have to add some additional batteries if you want to use all 14 kWh). NG generators are not exactly cheap either and run 2-5k + installation. If I could go off grid, I would love a hybrid system (solar + NG gen + powerwall + small wind gen). That way 95% of the time the NG gen does not have to run, only when battery is getting low or AC is turned on. The powerwall is basically meant to offset peak power demands/charges and not really meant to charge your car on.

  4. hello
    whay dont you make your own powerwall it would cost you 1/10 of the price of Tesla powerwall …
    my DIY powerwall is ower 10kw around 11.5kw but and is working 5 month now without any issues…..max loads so far 4.5kw for 30min. and 3kw for 1h or 3 washes on 90deg.C with washing machine one after a nother and stil last me out to the 22.00h….
    so energy stored in li-ion powerwall alone is not so for charging the tesla cars and so on is for the lower your electricity bill ……so miracles to expect is a little naive……
    so basicly usage around the house and a little more could be covered with panels and powerwall….

  5. The correct application for this type of powerwall system is for off grid and RV. Then its not only cost effective but genius. As storage for solar collection.

  6. NG in my areais $1.11673 Therm which is 100 Cubic feet. A 25 KW generac Genset uses 430 Cubic feet of NG per hour @ 100%. So we have 1.11673 X 4.3= $4.80 an hour x 24 hours = $115.24 a day. so $55,000 Powerwall install / 115.24 = 477 days worth of electricity. You would spend $55,000 for a little over a year of electric and have nothing to show for it with a Genset. At least you would still be able to produce electricity with the powerwall setup. lets say it only last 10 years.. that's $5,550 a year. that would give you 48 days of genset electric per year. If you live in an area prone to outages I would say the Powerwall is a good investment as far as "backup" if you "net meter" it would be even better.. just my 2 cents..

  7. Currently we are in the process of installing 6 powerwalls in what we are calling our "Energy Sovereignty Project". Stay tuned on our channel for updates soon but what I wanted to say is that your numbers were correct.
    Basically the limitation of the powerwall 2 isn't it's capacity but it's inverters. The onboard bidirectional inverter is only capable of 5kw per powerwall. The powerwall can't charge and discharge at the same time as it was able to do with earlier models in development where they could be tied together using a separate DC buss.

    The purpose of our study isn't to look at the cost effectiveness of this, it's designed to look only at feasibility.
    Like everything else, costs will come down. What we are trying to identify is at what point, and to what level, energy sovereignty can be achieved…. at any price.
    Once that is done and we have hard numbers, it's up to the manufacturers to make that amount of solar and that amount of storage affordable.

  8. Feel free to follow our channel. We are actually doing this very thing. There is more to it than one might think as far as benefits.
    It's also important to remember that it's a pretty rare instance when one would fully charge a vehicle from nothing.
    We are starting what we are calling "The Energy Sovereignty Project".
    In the project we are hooking 10kw of solar production to 6 powerwalls giving approx. 80kwh of usable storage.
    Even with only 3 powerwalls, one would be able to power their home.

    The main limiting factor is the charge/discharge rate of each powerwall. One would need at least 3 of the Powerwall 2's at 5kw a piece discharge rate to power a home. 4 to be on the safe side.

    Feel free to follow us as we examine the real world numbers of such an installation.

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