[RE-wrenches] Sunpower modules

[Drake Chamberlin]

At 09:46 AM 3/20/2009, you wrote:
>The CTI-90, rated at 5.15 amps, will reach 7 amps here in Yuma with 
>the Blue Sky 3024i.

Do you use the Blue Sky metering, or have you checked the MPPT output 
with independent metering?  I retrofitted a 12 V Blue Sky charger on 
an old cabin system. The CC had no on-board metering.  My measured 
result showed almost the same output and input on a cool, sunny 
day.  The modules were ancient Arco units, but I still expected some 
improvement.

Drake Chamberlin
Athens Electric
OH License 44810
CO License 3773
740-448-7328
740-856-9648