Cleaning PV Arrays [RE-wrenches]

[Bill Brooks]

Your free subscription is supported by today's sponsor:
-------------------------------------------------------------------
Race to Claim your FREE Stock Car Racing Gift!
http://click.topica.com/caacERRbz8Qcsbz9JC9a/PermissionData
-------------------------------------------------------------------

Joel,

If you read the notices related to the systems in the caption below the
graphs, we decreased our datalogging interval from 15 minutes to 1 min to
look for issues in the max power tracking software of the PV series
inverters. The power measurements are made with pulse meters so when the
interval is short (like 1 min) the data gets very jagged because the
sampling rate is took close to the interval between pulses. We increased it
to 5 minutes after we learned what we needed and that looks pretty smooth,
but not as smooth as 15 minutes. Good question however--thanks for looking
at the data.

Bill.

-----Original Message-----
From: Joel Davidson [mailto:joeldavidson at earthlink.net]
Sent: Tuesday, September 21, 2004 8:40 PM
To: RE-wrenches at topica.com
Subject: Re: Cleaning PV Arrays [RE-wrenches]


Hello Bill,
The plots for the week of July 18 to July 24 are pretty dramatic. I can
understand the jump in AC power after cleaning, but what do you think caused
the smoother AC power curve?
Best regards,
Joel Davidson

Your free subscription is supported by today's sponsor:
-------------------------------------------------------------------
Is Unemployment on the rise? Answer and Win!
http://click.topica.com/caacERJbz8Qcsbz9JC9f/PermissionData
-------------------------------------------------------------------

- - - -
To send a message: RE-wrenches at topica.com

Archive of previous messages: http://lists.topica.com/lists/RE-wrenches/read

List rules & etiquette: www.mrsharkey.com/wrenches/etiquete.htm

Check out participant bios: www.mrsharkey.com/wrenches/

Hosted by Home Power magazine

Moderator: michael.welch at homepower.com
--^----------------------------------------------------------------
This email was sent to: michael.welch at homepower.com

EASY UNSUBSCRIBE click here: http://topica.com/u/?bz8Qcs.bz9JC9.bWljaGFl
Or send an email to: RE-wrenches-unsubscribe at topica.com

For Topica's complete suite of email marketing solutions visit:
http://www.topica.com/?p=TEXFOOTER
--^----------------------------------------------------------------