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Repost please: $/watt solar panals. - Page 7

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Posted by Michael A. Terrell on October 28, 2009, 12:06 pm
 



nospam@nevis.com wrote:

breakeven, owing to all the previously lost energy.

confusing energy break even with economic break even.  I a

real world.

the road,

energy surplus.

  If there is enough sun to power the lights, you don't need them.


--
The movie 'Deliverance' isn't a documentary!

Posted by nospam on October 28, 2009, 1:45 pm
 


Michael A. Terrell wrote:

breakeven, owing to all the previously lost energy.

confusing energy break even with economic break even.  I a

real world.

the road,

energy surplus.

After 4pm six months of the year, yes I do need lights.

Posted by Michael A. Terrell on October 28, 2009, 11:58 pm
 


nospam@nevis.com wrote:

breakeven, owing to all the previously lost energy.

confusing energy break even with economic break even.  I a

the real world.

the road,

energy surplus.

   The solar panels are worthless for that use without expensive, short
lived batteries.


--
The movie 'Deliverance' isn't a documentary!

Posted by vaughn on October 29, 2009, 12:58 am
 



   Expensive, yes.  But define "short lived".  With proper care, 10 years or
more is not unheard of for a good set of lead acid batteries.  In the past,
I have been lucky enough to "scrounge" good used batteries from large UPS
systems.  In my home system I typically get another 5 years service from
them.

Vaughn




Posted by Josepi on October 29, 2009, 1:31 pm
 

Ten years from batteries?  Not if you actually used them and didn't just
keep them on float.

I have heard this story over and over from manufacturers but I have not
heard of anybody, actually using their batteries and discharging them each
night to a resonable level, that gets more than a few years of dependable
usage out of them.

The solar savings would never pay for the batteries, compared to bulk
manufactured energy




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