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A comment on Panasonic and Tesla Sign Agreement for the Gigafactory. Parent comment

Re:Panasonic and Tesla Sign Agreement for the Gigafactory by aharonovich on Thursday July 31, 2014 @05:12AM (#8113142)
They plan to have capacity of 35-50 GWh at 2020 [0]. IMO they will not be able to produce so many cars, to use all the battery capacity in Tesla cars they would to make ~0.5 Million cars per year. This means that they do plan to sell the excess capacity.

[0]http://www.teslamotors.com/sites/default/files/blog_attachme...

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Re:Panasonic and Tesla Sign Agreement for the Gigafactory by tristramg on Thursday July 31, 2014 @08:39AM (#8113690)
They say so in their announcement: “and for the stationary storage market”

A huge growing market will be batteries in homes. Germany is trying to push it to go from 30% of photovoltaic self-consumption up to 70% (when the sun shines, people usually are away at work). The excessive electricity is sold to the network.

This requires between 5 and 10kWh storage capacity (compared to the 50+kWh of a Tesla) for a single family home. The current price is about 20€cts/kWh for the storage over the whole lifetime. So it is not economic yet, but it should be within a few years and I hope that Tesla will contribute to it. Solar costs about 15€cts/kWh and electricity from the network is around 25€cts/kWh. When solar will reach 10€cts and storage 10€cts/kWh, the market will be very important.

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