Solar Boost / C40 test/ CloudyTest [RE-wrenches]

[blair Tump may]

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Carl, it just so happens that today is cloudy looking at the sun its a 
light ball in the sky.
Time or readings;7.30-7.45 AM EST   amb. temp 57*F top of panel 58*F rear 59* F
Array faces; 185* Mag, Direction of the sun while taking readings106* 
Mag    Inverter output OFF
  NOTE: Yesterdays readings were to ck  differences of output to the GRID, 
inverter in SELL mode between the SB a& C40  Today Inverter output off, 
system used as stand alone for my house last night(NO grid).Just cking 
chrarge into batteries this AM.
Living in Maine the SB really helps out in the cold temps w/ snow on the 
ground temps @ 0*F and below, I figure that I get additional 4-5 Amps/ 
hr.Not much sun light in the winter.
We also are awaiting UL approval on these units but where our installs are 
not inspected we always spec these units out.

C40:Bat.DC Volts;24.8   Pv DC Volts 24.9   Amps measured into batteries 
from CC 5.4

Solar Boost;  Bat. DC Volts24.8   Pv DC Volts32.8  Amps 6.9 into Batteries

>Any chance of the same readings on a cloudy day (if you have them).
>Could you also try near sunrise and sunset. This I think would confirm 
>more gain
>from the Solar Boost 50 in incident light and global irradiation and at cooler
>temperatures.
>
>Carl Emerson
>Manager
>FREEPOWER LTD.  "Harnessing Natural Energy"  Auckland, NEW ZEALAND.
>
>blair Tumpmay wrote:
>
> >   OK you folks heres the raw data, sorry travis that spread sheet stuff
> > would have taken me till next week!
> >
> > All measurments were taken w/ a Fluke 87, Fluke clamp on AC 80i 400 / DC
> > 80i1010 amp probes.Watts w/ a Brand Electronics transducer at AC L1to the
> > grid.  DC measured at the Batt cable in DC disconnect box to inverter.Temp
> > was a fluke thermocoupler K type surface probe.
> >
> > Site; N44*   W 069*    temp amb; 92.2* panel top temp;117* back of panel
> > 124.2* array ang;44* facing;185* M Elv;170'
> >   System SW 4024 * 375 surrette batts.15 585 panels & 1 590 panel wired 
> 24vt DC
> >
> > C40'    Battery voltage;25.46  panel voltage 26.32 DC amps in 39.5-40  AC
> > amps to grid 7.62  Brand WT Mtr  930 Avg
> >
> > Solar Boost 50; Batt.Vt.25.46 Panel Vt.28.5 DC Amps in 40.9-41.2  AC Amps
> > into grid 8.1 Brand WT Mtr; 970 Avg
>
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