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The first 2,000 kwh - Page 3

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Posted by John Gilmer on July 24, 2011, 4:28 pm
 
On 7/20/2011 11:29 AM, m II wrote:

http://www.nctimes.com/business/article_8a32fb03-9e3f-58ca-b860-9c7fe1e28c7e.html

Very interesting.

In the fullness of time the designers of some of these "boxes" will
routinely insert things like thermal fuses (as are routinely found in
your $0 'automatic' coffee maker) that will open circuit whenever
things get too hot (regardless of cause).   Thus, even if the "box"
wasn't the source of the fire, the heat would cause the box to
disconnect itself from any source of energy including the solar array
and the mains power.

Some 20 years ago a neighbor's attic ventilation fan motor caught on
fire.   It was an old motor at the time.   Today, small motors have fail
safe/idiot proof internal protection.

Where is UL (or the equivalent) when you need it?


Posted by Pete C. on July 22, 2011, 6:35 pm
 

vaughn wrote:

though

The roof would be my absolute last resort for a PV installation
location. Sure it's convenient to use existing elevated space, but it's
a pain from an installation and maintenance standpoint, creates
potential roof leakage points, high wind securement issues, and it
doesn't lend itself to a ready defense against hail such as a flip-over
mount with a shield surface on the other side.

Posted by vaughn on July 22, 2011, 9:17 pm
 

Yet that's almost invariably where they go.

Vaughn



Posted by Mho on July 23, 2011, 12:15 am
 Ontario MicroFit rules give you 80.2 cents per kWh for putting them on the
roof. Much if not.

------------

Yet that's almost invariably where they go.

Vaughn

----------------

The roof would be my absolute last resort for a PV installation
location.





Posted by Mho on July 23, 2011, 12:21 am
 oooops... "Much less if not"

Now the Insurance companies may get involved as there have been cases of
buildings being allowed to burn with solar panels generating power into a
burning house.

Full circle.

---------------

Ontario MicroFit rules give you 80.2 cents per kWh for putting them on the
roof. Much if not.

------------

Yet that's almost invariably where they go.

Vaughn

----------------

The roof would be my absolute last resort for a PV installation
location.





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