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DamonHD
Posts:6158
Moderator
Member since: 2006-11-30
:: Quote ::
Subject: Fun with gnuplot...
Hi,

I'm gathering all this data on my green site, eg about my own local renewable systems, but also about the GB grid for example, and it seems a shame not to graph/visualise it.

Sometimes I want to do everything in HTML to keep total file size down and to avoid needing to load ancillary graphics which may get out of sync, eg here:

[www.earth.org.uk]

but I've also been having fun with the free gnuplot utility (handy for my *nix boxes) which is a little frightening to start with because it's quite complex, but which does lots of things 'right' by itself.

Here for example is some semi-real-time graphing of the state of my off-grid battery. When it gets near 11V in Dec/Jan you can expect to see me switching my server to mains power to ride out the worst:



But then here's some other pretty graphs I generate from slightly-less real-time data:

Solar PV generation over the last couple of years:

Our gas consumption (currently struggling to beat last-year's numbers for September!):

Can be made to look a lot prettier, but all of those only required a bit of data processing up front and a few lines of gnuplot script to make.

Rgds

Damon



Edited 3 time(s). Last edit at 09/27/2010 07:20PM by DamonHD.
September 27, 2010 02:39PM
GegaBit
Posts:3311
Senior member
Member since: 2006-11-30
:: Quote ::
Subject: Re: Fun with gnuplot...
hey I'm not running any grid!

nice graphs.
September 27, 2010 06:52PM
mikeinfrance
Posts:248
Preferred member
Member since: 2009-10-08
:: Quote ::
Subject: Re: Fun with gnuplot...
Bet you say that to all the ecologists ;-)
September 27, 2010 08:29PM
Pengi
Posts:3345
Senior member
Member since: 2006-12-17
:: Quote ::
Subject: Re: Fun with gnuplot...
Quote:
Solar PV generation over the last couple of years

Seems to be going up - probably global warming drinking smiley
September 27, 2010 09:01PM
DamonHD
Posts:6158
Moderator
Member since: 2006-11-30
:: Quote ::
Subject: Re: Fun with gnuplot...
No, it's called "adding panels to the system"!

From now it should be steady unless I sneak some in at ground level...

Rgds

Damon
September 27, 2010 09:57PM

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