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(hopefully) useful program available

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Posted by Dave Merriman on October 12, 2009, 1:46 am
 


To learn programming in Java, I've written a little utility that provides
_basic_ information on developing/designing a small home/cabin PV system
-- listing and totaling loads, PV panels, batteries, and inverters, as
well as estimated reserve time. Data can be printed or exported to a .csv
file that can be imported into a spreadsheet.

Source code is included, as well as a simple manual.

The program is called PV_calc, and is available at:

http://sites.google.com/site/adifferentlemming/Home/projects


DM
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Posted by z on October 13, 2009, 6:38 pm
 




Thats pretty cool.  I've been playing around with it some.  Had to update
my java to run it

Nice one~!

Posted by Dave Merriman on October 13, 2009, 11:20 pm
 

On Tue, 13 Oct 2009 13:38:20 -0500, z wrote:


Thank you :-)

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Tuesday, October 13, 2009 @ 1720
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Posted by z on October 13, 2009, 11:49 pm
 

@newsfe06.iad:


home/cabin

I might fiddle with it some.  I'm thinking a duty cycle variable (or is
it in there?)  Like some of my items are only on for x hours a day, and
i'm generating power at night when everything is completely off, so thats
a factor.

Haven't done much java but if I get motivated I might screw around in
your source.

thanks again man!

-z

Posted by Dave Merriman on October 14, 2009, 8:14 pm
 

On Tue, 13 Oct 2009 18:49:17 -0500, z wrote:


I commented the source pretty well (I think), so editing it shouldn't be
_too_ much of a hassle...

In the documentation, it mentions that the loads are assumed to be
operating only a certain number of hours a day -- the "undefined" loads
default to 6 hours/day, for example. You can compensate for your hydro by
quadrupling the power it generates.

Alternatively, if you export to a .csv, it dumps the hours/day info on
the loads, and you can also insert your hydro in the power gen section.

DM

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Wednesday, October 14, 2009 @ 1411
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