Well the use of electricity per household would vary.
Also it isn't 60k added onto the cost of a new roof. That price that i've seen quoted is cost of it total when you don't need a new roof. If you do need a new roof you would subtract the cost of the new roof since you are going to have to spend that money anyway on a new roof.
But add in the tax credits that will come in (and all things point to those getting bigger each year), the fact that solar adds quite a bit of value to the house, and just the fact that at this point in human development we need to cut pollution as much as possible it would make sense.
Problem is the average person doesn't have even 5k to spend on a new roof these days.
I agree with you on the last points. Just throwing out the numbers I have read one analyst say. And yes there will be tax credits and increase in value, etc. However it still is a huge additional expense upfront. One most people would only undertake by pulling out equity or construction/refinance or new build.
And sorry, you are correct it's not $60,000 extra. According to their math, it is just $53,500 extra
Here's How Much Tesla's New Solar Roof Could Cost
We've run some numbers and determined that a textured glass tile Solar Roof should cost no more than $73,500, installed, to be competitive with an asphalt roof.
How We Did the Math
To get there, we pulled together ballpark pricing for the various roofing materials Tesla’s solar shingles mimic, from sources like the Slate Roofing Contractors Association, the Tile Roofing Institute, and the Remodeling 2016 Cost vs. Value Report.
There are plenty of variables, of course, including the location of the home and shape and height of the roof. (And we’re leaving out any consideration of solar rebates and incentives.) But here’s what the installed costs look like for the roughly 3,000 square feet of roofing needed to cover an average size home in the U.S.
Clay Tile: $16,000
Asphalt: $20,000
Slate: $45,000
So how could a $73,500 roof be considered cost-competitive with a $20,000 asphalt roof? To compensate for the proposed added value of the “free” electricity from Tesla’s roof, we added in $2,000 a year, over the lifespan of the roof. That’s a typical electric bill in states where solar is big, like California, Texas, and North Carolina.
Tesla says the life expectancy of its tiles will be 30 years. So that adds $60,000 to the value of the roof. (Our rough estimate assumes our hypothetical Solar Roof homes generate exactly as much electricity as they use.)