Posted by Giga2 on April 6, 2011, 7:10 pm
Good point Dawlish, I've got similar calculator and feel no great need to
That is an ENORMOUS guarantee period! To offer that you have to be pretty
confident that 90% of them will be fine 15 years out, let alone 10 I would
Posted by Vaughn on April 6, 2011, 7:51 pm
Apples and oranges. A car is something you purchase for a totally different
purpose, plus one need not cost " 2-3 times as much as a
roof full of PV panels". However I DO look at ROI when deciding to pay
extra for gas-saving (hybrid) technology in a new car, and would certainly
look at ROI if deciding to buy an EV commuter.
Further, cars are a fairly long-lived comodity. I would not consider buying
a car that would not (in my judgement) last me 10 years and then have anough
residual value for the second owner to get perhaps 5 more years use from it.
I believe some new cars still come with a 10 year/100,000 mile warranty.
Posted by Bruce Richmond on April 7, 2011, 1:25 am
I'm currently driving a 2001 Prius that I bought for about 1/3 of what
you have invested. It gets 50 mpg and should last me about 5 more
While making a profit on your investment would be nice I didn't think
that was really the point was it? More like putting your money where
your mouth is. It's easy to stand on the sidelines and talk, but you
are doing it. More power to ya :)
Posted by Tom P on April 7, 2011, 8:06 am
On 04/07/2011 03:25 AM, Bruce Richmond wrote:
Hide quoted text -
That's true, and of course it's really something to talk about at
neighborhood parties, it certainly puts those Toyotas and Lexus in the
shade. And it's a real hit with the girls too - "why don't you come up
and see my panels some time, just kneel on the bed and lean out of the
Posted by Vaughn on April 6, 2011, 3:14 pm
"Pretty much" yes, but it's the exceptions that kill you. Most inverters
incorporate both fans and electrolytic capacitors. Neither of those items
last forever, either will cause failure.
50 years is wildly optimistic. There are too many things that can happen to
any installation. Some of them have little or nothing to do with the
robustness of the design. Equipment can get zapped by line surges or
lightning, can get wet, stolen, attacked by bugs or rodents, displaced by
home repairs & renovations; the list goes on...