Tesla's Highly-Anticipated Solar Roofs Go Up For Pre-Order Today (inhabitat.com)
Kristine Lofgren writes: Get ready: Tesla's ground-breaking Solar Roof tiles are available for order in the U.S. starting today. In typical fashion, CEO Elon Musk announced via Twitter that the anticipated tech would be available to order this afternoon with installation happening later this year. Tesla's tiles look like traditional roof tiles but they soak up all that delicious sunlight in order to power your home. According to the company, the tiles will be more affordable than typical roofing and can be paired with their Powerwall battery to power a home completely using solar energy.
... would sink USD$70 for a roof ? He's mentioning that it wouldn't cost more than an asphalt roof, but that's only assuming very optimistic energy savings, and government subsidiary. Quote I got for my roof are in the $5k range, for a 20 years lifetime. The tiles are only warranty over 30 years, so an asphalt roof would cost $7.5k over the same period of time...
The comparison stands up for a comparison with high end 50 year tiled roofs.
Not your typical roof retiling with shingles.
-- Tigger warning: This post may contain tiggers! --
In Colorado at least, there is a limit to the amount of solar energy you can produce. We discovered this when we put our panels up. It's something like 2xdaily maximum of use based on a couple of years of power bills. So you might not be able to do your whole roof in these things anyway. I like the idea, but some of the municipal restrictions get in the way.
The calculator just told me that I'll see a savings of $100 over 30 years. I think I'm going to wait for fusion to become a thing.
Space Shuttle was a program that strapped humans to an explosion and tried to stab through the sky with fire and math
Last year I replaced my roof with a conventional asphalt shingle roof. These were timberland lifetime warranty shingles (really a 25 year warranty). Quoted roof size was 21 square (2100 sq ft) at a cost of $12,600. This is on a single story hipped ranch with 4/12 pitch, ice and water up 2 rows, 2 layer tear off (old roof) cutting in a ridge vent, and adding a chimney cricket (use google).
Tesla quotes $68,700 for this same roof with a 30 year warranty. Run some numbers... (and I'm going to ignore government incentives)
Tesla claims a $18,600 savings in energy. If I was able to take out a solo mortgage at 3.92% for 30 years on $50k for this roof it'd cost me $85k in the end, well offsetting the $18k savings and putting me $17k in the hole.
Lets run the numbers the other way. Say I had the difference ($50k) laying around and I wanted to invest that at the rate I'd pay for the roof in the above example ($236/mo for 30 yrs) in a monthly compounded account you'd accrue $142k after 30 years.
I love the idea of widespread renewables, but I can never get the long term financials to play out in their favor.
Even without ANY solar panels, they're roughly costing 4x the price of a 'regular' roof, once you select 70% solar, you're looking at 10x the price of a 'regular' roof.
And for that I save about $1k/year, it's a very poor investment. Get a metal roof and 'regular' solar panels, the same amount of energy for less than a quarter of the cost and the same 30-100y lifespan.
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You should not have fired the FBI Director, sir. It's not a good look.
You are welcome on my lawn.
I haven't done a proper survey, but I'd say most roof coverings in Europe are teracotta tiles, clay tiles etc. There are a few slate roofs, some thatch and a few other materials. There's no way these tiles would look any good on any of those except maybe the synthetic slate roofs. Then there's the cost... way more than a few flat panels (and probably still more than panels sunk into the roof line). I'm sure I don't need to point out that a lot of European roofs have been up for a hundred years and are still watertight, so we're going to need more than a 30 year warranty.
However, for an "i am rich" statement, these'll do great ;-)