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jpluimers / sma-uploader

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Change Instantaneous Power and Average Power #24

Closed GoogleCodeExporter closed 8 years ago

GoogleCodeExporter commented 8 years ago 
First of all, I`m using SMA uploader for a month now, and it works great!
Thanks for all the work everyone has put in this.

I have a small request (not a malfunction or anything).

At the moment, Instantaneous power and average power always have the same 
values. When clouds appear, I can see a lot of spikes in the output of my 
inverter.

Would it be possible to make the average power averaged over more then 10 
minutes, say one hour for instance.
That way, average power would represent a more fluid line in the graph, while 
instantaneous power will show the more exact values.

I`ve looked into the script myself to change this, but I must say, VBScript is 
not my thing.

Thanks in advance.

Original issue reported on code.google.com by robin...@gmail.com on 29 Apr 2013 at 12:20

GoogleCodeExporter commented 8 years ago 
Hi Robin,
I understand where you are coming from and have wrestled with this in the past. 
The issue we have, as SMA users, is that the inverter does not store 
instantaneous power spikes in a way that we can then extract it out (via the 
Sunny Explorer Command Line interface). What that means is that the 5 minute 
data points that we have access to are already an average of power over that 5 
minutes.
The option of then averaging the power out over an hour as you have suggested 
would then miss-represent the data graphs on pvoutput as the average value 
there is designed for the 5 (or 10) minute interval. 
This simply means that for SMA inverters, the Power and Average columns will 
always show the same thing. I don't see it as being a big issue and seems to 
'clean up' the graph a little. I have found that if you run 10 minute intervals 
on pvoutput then you do get small variations between the Power and Average 
values but then the graph just looks messy again.
Until SMA come out with 1min or 30sec data intervals for the SE extract I think 
we are stuck with what we currently have.....which I think looks pretty good 
anyway.
Cheers,
Gary

Original comment by gazgl...@picknowl.com.au on 30 Apr 2013 at 1:58

GoogleCodeExporter commented 8 years ago 
Hi Gary,

I understand, no problem.
Thanks for your time.

Cheers,
Robin

Original comment by robin...@gmail.com on 1 May 2013 at 9:16