[RE-wrenches] Insolation radiation to performance numbers...

[ASAP POWER! 2]

Thanks again, Bill,
I'll investigate PVSYST also, as I can't get PV Watts either version to work
for me online beyond 4.0kW(?) and no data points for new zip code anyway,
and in old zip code, NREL's map servers seem to not like me in any browser.
 
I did manage to figure out correct numbers using handy conversion chart
factors on Wikipedia under insolation and some manual calcs (was a messy
transcribe into .xls).
http://en.wikipedia.org/wiki/Insolation
 
Peter D.
  _____  

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Bill Brooks
Sent: Tuesday, November 04, 2008 11:07 AM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] Insolation radiation to performance numbers...



Don,

 

PV:WATTS version 1 is easiest to use and it is available at
http://rredc.nrel.gov/solar/calculators/PVWATTS/version1/. It covers fixed
tilt, single- and two-axis tracking for standard crystalline silicon
modules. My confusion had to do with whether the 5.9 kWh/m2/day was a fixed
tilt value or single-axis tracker. Not knowing the location makes that
impossible to figure out. PV:WATTS version 2 is what the CSI program uses to
calculate EPBB rebate. Unfortunately, the EPBB calculator does not access
the single- and two-axis tracking parts of PV:WATTS version 2. 



PVSYST is available online from Switzerland at www.pvsyst.com

 

Bill.

 

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of I2P at aol.com
Sent: Tuesday, November 04, 2008 10:54 AM
To: re-wrenches at lists.re-wrenches.org
Subject: Re: [RE-wrenches] Insolation radiation to performance numbers...

 

In a message dated 11/4/2008 9:45:57 A.M. Pacific Standard Time,
billbrooks7 at yahoo.com writes:

If really want to get serious, use PVSYST.

Hi Bill, Where is this available?. I'd like to check it out.

 

Thanks,  Don Loweburg





  _____  

Plan your next getaway with AOL Travel. Check
<http://pr.atwola.com/promoclk/100000075x1212416248x1200771803/aol?redir=htt
p://travel.aol.com/discount-travel?ncid=emlcntustrav00000001> out Today's
Hot 5 Travel Deals!

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20081104/e3486f05/attachment-0004.html>