myrickma
Well-known member
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- #1
Solar Cover is one of my favorite options that will be available, and will most definitely get if the price is right. So let's do some math (very rough estimates, get ready!) haha
Musk says cover will gain about 15 miles/day (likely for dual motor)
1.
So how many KWh is 15 miles for the CT which we do not know the battery size yet.
We do know:
Model S Plaid: est .32 kWh/mile curb weight 4766
F150 Lightning: est .46-.50 (call it .48) kwh/mile curb weight: 6500
CT is "mid-sized" so will have a weight of 5000-6500, and superior batteries compared to the F150
so let's say .40 kwh/mile
.40 kwh/mile x 15 miles = 6 kwh/day generated (that's a 120 kwh battery pack, which seems right from estimates I've seen for dual motor)
average usable solar per day nationally is 5-6 hours (say 5.5), that's 1100 watts per hour (size of the array would be 1.1 kwhr)
current tesla panels are $2.01 /watt $2.01 x 1100 = $2211 (An exciting number, but one I believe is quite low)
It's unlikely that the CT solar will be that low $/watt.
Doing a quick estimate on my own house, solar roof is about $3.30/watt so lets use that
$3.30 x 1100 = $3630 (still a reasonable $ IMO, and probably more likely than 2211)
Now, the solar alone from that same estimate is $1.80/watt, $1.80 x 1100 = $1980 (Which would be S3XY)
2.
Here's the issue
Looking at the size of the cover (estimate it 32 sqft, 5.5 ft x 5.8 ft )
solar roof is 6 watts/sqft installed = 192 watts
panel is 18 watt/sqft installed = 576 watts
now these are installed, so looking at the dimensions of the panel via the spec sheet, I estimate you could fit 2 x 425 watt panels into that space (850 watts)
still 250 watts short
These are all estimates and all for fun of course. No doubt Musk will pull it off, I just don't see it being less than 5K.
Musk says cover will gain about 15 miles/day (likely for dual motor)
1.
So how many KWh is 15 miles for the CT which we do not know the battery size yet.
We do know:
Model S Plaid: est .32 kWh/mile curb weight 4766
F150 Lightning: est .46-.50 (call it .48) kwh/mile curb weight: 6500
CT is "mid-sized" so will have a weight of 5000-6500, and superior batteries compared to the F150
so let's say .40 kwh/mile
.40 kwh/mile x 15 miles = 6 kwh/day generated (that's a 120 kwh battery pack, which seems right from estimates I've seen for dual motor)
average usable solar per day nationally is 5-6 hours (say 5.5), that's 1100 watts per hour (size of the array would be 1.1 kwhr)
current tesla panels are $2.01 /watt $2.01 x 1100 = $2211 (An exciting number, but one I believe is quite low)
It's unlikely that the CT solar will be that low $/watt.
Doing a quick estimate on my own house, solar roof is about $3.30/watt so lets use that
$3.30 x 1100 = $3630 (still a reasonable $ IMO, and probably more likely than 2211)
Now, the solar alone from that same estimate is $1.80/watt, $1.80 x 1100 = $1980 (Which would be S3XY)
2.
Here's the issue
Looking at the size of the cover (estimate it 32 sqft, 5.5 ft x 5.8 ft )
solar roof is 6 watts/sqft installed = 192 watts
panel is 18 watt/sqft installed = 576 watts
now these are installed, so looking at the dimensions of the panel via the spec sheet, I estimate you could fit 2 x 425 watt panels into that space (850 watts)
still 250 watts short
These are all estimates and all for fun of course. No doubt Musk will pull it off, I just don't see it being less than 5K.
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