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3rd May 2015 11:27
Link to Post #1
Tesla energy, what is its true potential?
Has anybody here done the math of determining the potential of the use of the Powerwall product by Tesla corporation? Let's say you want a self sustaining home run totally off of solar energy stored in the Tesla Powerwall installed into a small house where you want to have energy available for cooking food, coffee, powering a computer and keeping the house warm throughout the whole year, how would that be technically solved using the Tesla Powerwall, how many solar panels do you need and of what exact type and how many Powerwall batteries do you need to store the energy? How much money would leave your pockets to get there and how reliable would the solution be? Can the Tesla Powerwall get us off the grid?
According to this article you get ~3 hours at 2 kW per 10 kWh battery when considering the energy loss due to the DC/AC conversion (each having a weight of 100 kg), that's not so much. You can however then combine up to 9 of these for a total of 90 kWh. That would give you 27 hours at 2 kW, which should get you off the grid. That will cost you 3500 USD * 9 = 31 500 USD. That 900 kg investment will make you able to get off the grid for 10 years in case you also can afford the solar panels for it. The question is then what the solar panels cost that would utilize the capacity of the 9 pieces of 10 kWh Powerwall batteries?!
Last edited by WhiteLove; 3rd May 2015 at 11:53.
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3rd May 2015 14:16
Link to Post #2