Tesla unveils latest battery pack technology 'Powerwall'

[lancaIV]

As market competition alternative:
7 KWh capacity +/- 700 US$
http://news.stanford.edu/news/2015/march/aluminum-ion-battery-033115.html

cheap aluminium production can bring the global market price per ton to 500 US$
(Russia production price +/- 750 US$/ton)
http://www.topix.com/forum/com/cenx/TIP6DD2B8TJKTIRM8#!
the inventor: https://www.google.com/patents/US6551476

the electrical energy delivered by portable energy plants for 1 USCent/KWh
mini aluminium smelter

3 KWcontinous AC-Inverter +/- 500 US$
a. Shell Springboard award planar inverter
b. Rudolf Zoelde HSWR

and a battery PWM charger and condition controler 399 US$

total commercial worth less than 2000 US$

[forest]

IS this the real world changer ? For whom ? For educated bold elite maybe... who can afford all the costs beside the battery pack, solar panels, inverter and so on... The most important in my opinion for poor people is the energy used to cook and heat their homes - the most costly part, electric light is cheap.


If you watched Musk presentation you must know that the heat problem is postponed to later times because of large power demanding for it.


What we do need really !!!? Please comment. I seem I know the answer...maybe

[forest]

"For example, about fifty-percent of available energy is accessed by just one billion people, yet the negative impacts on the environment are being felt by the three billion who have no access to that energy.  Three billion have so little access to modern energy that they are forced to cook, heat and light their homes with methods dangerous to their health."


http://www.casinapioiv.va/content/accademia/en/events/2014/sustainable/statement.html

[lancaIV]

Forest, at first:
between a Tesla Car Company modell and a TATA Car Company modell f.e. Nano is a price difference which show us the virtual "handling" from definitions like "world middle class" and "India middle class" social product afford,not to think about the "no/poor income class".

Elon Musk interests is to sell himself as "highland" but finally he is only serving for -
reciting Tom Chalky and Dick Fradella - the  waste civilisation satisfaction .

There are millions of people exploring cheap alternatives to resolve the future needs for the billions of low income world habitants,but this is not a Tesla Company issue.