[Greenbuilding] Fwd: Re: Self-Contained Solar Units

[Joe Killian]

Lynelle,
   I see you've received lots of all-valid comments/advice from 
different directions.
   Batteries other than lead-acid have various advantages, but not in 
price.  Lead-acid is still the overwhelming default standard for PV 
system storage (even though Tesla & others are trying to change that, 
it's early).  And yes, AGM batteries handle the off-gas issue when used 
with a decent charge controller.

   I think mrgoodbeer gives the best advice for you - especially as a 
"solar neophyte".  Although I have no experience with microgreen.ca, 
their system appears to have all the pieces you need for a good and 
complete, albeit smallish, system, already hooked up.
   With 2 or 4 batteries, you'll have 600 or 1200 watt-hours on a full 
charge draining from 100% to 80%.  Double that if draining to 60%, which 
is about as far as lead-acid is recommended to be drained.

   You can glean much information from the web.  One site I find quite 
good is batteryuniversity.com/learn/.
   I'm an electrical engineer with over 50 years experience.  I live 
using off-grid systems myself.  Choosing economy over ultimate specs in 
any sense, I use lead-acid.

Joe



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