On Feb 13, 7:24*pm, wrote:
On Wed, 13 Feb 2013 12:51:19 -0500, Dan Espen
wrote:

And you have to buy a new Solar DC-AC convertor, when the old one fails
after a few years.

A few years?

My first hit on MTBF for DC-AC converter says 1 million hours.
365*24 = 8760. *Looks like 114 years.

Seems a little high, but a few years sounds nuts.

I agree that the MBTF is out beyond a few years but we don't know how
well they hold up to lightning. That may not be important everywhere
but we have an ass kicking thunder storm just about every day here in
the summer. (Florida). Then there is that 150 MPH hurricane thing.
I wonder how well a collector holds up to a coconut hitting it at
100mph or so? I know my pool collector didn't hold up too good and it
is just a low tech plastic deal.

Some of us are condemned to life in nasty undesireable places;-)