[RE-wrenches] DR Power curve
Chris Worcester
chris at solarwindworks.com
Tue Apr 21 09:44:39 PDT 2009
The curve in the old flyer climbs rapidly showing about 93 % peak efficiency
at approx 150 to 350 watts, then straight lining it down through/to approx
83% at 1500 watts. It does not start on the chart at 0 watts though which is
interesting, it starts climbing at 80% efficiency from the 25 watt line. So
at 10 watts (interpolating backwards) you must be at approx 33% efficiency!
Hope this helps
Sincerely,
Chris Worcester
NABCEP Certified PV Installer
Phone: 530-582-4503
Fax: 530-582-4603
<http://www.solarwindworks.com/> www.solarwindworks.com
<mailto:chris at solarwindworks.com> chris at solarwindworks.com
"Proven Energy Solutions"
From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of robert
ellison
Sent: Tuesday, April 21, 2009 8:05 AM
To: RE-wrenches
Subject: [RE-wrenches] DR Power curve
Does anyone have a power curve for a DR 2412 inverter?
I need to show a customer that it is not 94% effecient with a 10 watt ac led
pluged into it alone.
I am betting that it needs 500 watts to get into the 75 or 80% range.
Thanks,
Bob
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