[RE-wrenches] DC to AC derate

[toddcory at finestplanet.com]

ps  i forgot to add i am using a bank of lead calcium wet cells which have a much lower standby loss than lead antimony.
 
todd
 
 
 
On Wednesday, January 4, 2012 8:16pm, toddcory at finestplanet.com said:



I consistently see 87% DC kWh to sold kWh with my Outback system.
(don't forget to also consider the usual STC to PTC derating)
 
Todd
 
 
 
On Wednesday, January 4, 2012 3:01pm, "All Solar, Inc." <allsolar at scswifi.net> said:



Wrenches,
Once again I am trying to size a grid tie w/battery  system and I struggle a little with the efficiencies of them.
With PV Watts (v.1), is changing the DC to AC  derate an accurate method for getting the output?
 
Thanks in advance!
 
Jeremy
 
All Solar Inc.
Jeremy and Amy Rodriguez
1463  M St
Penrose, CO 81240
[http://www.asolarelectric.com] www.asolarelectric.com
Phone  719-372-3808
Fax 719-372-3804
Email [mailto:allsolar at scswifi.net] allsolar at scswifi.net
Email [mailto:allsolar at live.com] allsolar at live.com


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