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...
When I need a new roof, I will strongly consider buying a Tesla roof. Even if it costs slightly more than a normal roof. This may not be the answer to all our energy problems, but it's a solid attempt to try something. I look at it as voting with my dollar, which probably has a much bigger effect than who I voted for for president. You never hear anyone saying "you'll never earn your money back buying a Mercedes", but people still buy them. I'd rather support a company trying to make progress, rather than blatantly pissing it away.
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.
The more individuals who do things like install expensive solar roofs, the more the price comes down for others who might do the same thing but can't do it for the high price.
So yes, individual actions really can make a difference.