Tesla's goal for the giga factory is to produce batteries at $100 per kwh so if they achieve that a 60 kWh would cost $6000.
Correct. JB Straubel has said before that the battery pack represents about 25% of the cost of the car. It was unclear if he meant 25% of the Retail price or Build cost... Though I've typically presumed he meant their internal build cost. Either way though, the numbers work out in their favor.
If it is based upon the Retail price... Then Tesla Motors would allow up to $8,750 to build the battery pack from a $35,000 total.
If it is based upon the internal build cost... Then for a $35,000 car they would allow up to $8,225
(6% margin); $7,700
(12% margin); or $7,437
(15% margin).
I believe the minimum battery pack capacity for the expected range will be 60 kWh. Others disagree, and have suggested that somehow it could be accomplished with as little as a 40 kWh battery pack. I will for now ignore those low-ball estimations.
$8,750 / 60 kWh = $145.833~ per kWh
$8,225 / 60 kWh = $137.0833~ per kWh
$7,700 / 60 kWh = $128.33~ per kWh
$7,437 / 60 kWh = $123.95833~ per kWh
At this point I expect that Tesla Motors will probably go with a 70 kWh minimum capacity, because the Chevrolet BOLT has been announced to have a 60 kWh capacity. So, the numbers would change a bit.
$8,750 / 70 kWh = $125.00 per kWh
$8,225 / 70 kWh = $117.50 per kWh
$7,700 / 70 kWh = $110.00 per kWh
$7,437 / 70 kWh = $106.25 per kWh
At any of these points, the money that is
'left over' is more than enough to build the rest of a car in this segment.
$8,750 -- $26,250
$8,225 -- $24,675
$7,700 -- $23,100
$7,437 -- $22,311
FYI... This is comparable to an amount someone posted here before about the $22,000 cost of a BMW 3-Series
'roller'. That would be a car with everything except drivetrain and motor. I expect that motors for a Tesla Motors product cost less in parts and materials than those for a BMW 320i, 328i, or 340i.
This is why I am so confident the Tesla Model ☰ will be profitable from the outset. Those who say otherwise are not looking at the numbers, or Tesla's advantages, in the correct light. Plus, they don't acknowledge that the very first projection I listed
($145.833~ per kWh) is right in line with what General Motors has already reported as their expected cost per kWh for the BOLT.
Tesla Motors will, on average, be able to reduce their costs for batteries through the Gigafactory by an additional 7% to 9% per year going forward. So, even if they start on the high end of these projections, within a few years, they will approach the low end. And if they begin on the low end, they will be under $90 per kWh before 2020.