Several issues regarding the capacity charges and wholesale market order

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Several issues regarding the capacity charges and wholesale market order

serkan
Dear All and John,

I found several issues, which should be taken into account before the final games.

Firstly, capacity charges. As far as I can see, peaks are first selected from the demands which are over the threshold. Up to this point it works great. However, 3 peaks (which are subject to capacity charges) are sorted from lowest to highest. It means that the highest peak(s) are ignored if the number of peaks is greater than 3.

Secondly, when I put an order in the wholesale market for an amount with a non-numeric price (can be any string or NaN, Inf), then my cash position is delivered as "NaN" and no longer come back to normal. A small problem, but may happen.

Could you have a look at these issues?

Regards,
Serkan
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Re: Several issues regarding the capacity charges and wholesale market order

grampajohn
Administrator
Thanks, Serkan -

I have recorded your issues as #936 and #937. Please feel free to subscribe to notifications on these issues (and any others that are of interest to you).

I've started looking at the capacity-charge issue, and I realized we don't have a test case for this. So that's the first thing I'm working on. From glancing at the code, I think your analysis may be correct, but I want a test case so it stays fixed once I fix it.

John
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Re: Several issues regarding the capacity charges and wholesale market order

grampajohn
Administrator
In reply to this post by serkan
Issues #936 and #937 are fixed, and the current SNAPSHOT deployment is updated. The fix for #936 might make capacity charges a bit higher at times.

Please let us know if the result is not what you expected.

John
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Re: Several issues regarding the capacity charges and wholesale market order

serkan
Yes it works now. In the first version of the visualizer, I can not see the changes. I assume it is not supported any longer, or?
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Re: Several issues regarding the capacity charges and wholesale market order

grampajohn
Administrator
serkan wrote
Yes it works now. In the first version of the visualizer, I can not see the changes. I assume it is not supported any longer, or?
Correct. The original visualizer is very obsolete and no longer being maintained. We just don't have the resources. Instead, we are working to migrate many of its displays over to the new viz.

Cheers -

John
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Re: Several issues regarding the capacity charges and wholesale market order

serkan
As you said, it raised another problem. Now, the retail business model, even for the default broker is not profitable. Do you plan to decrease feePerPoint for capacity charges?
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Re: Several issues regarding the capacity charges and wholesale market order

grampajohn
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serkan wrote
As you said, it raised another problem. Now, the retail business model, even for the default broker is not profitable. Do you plan to decrease feePerPoint for capacity charges?
I'm running games and looking at data to find a better value. Most likely we'll cut the feePerPoint by half or more. I had not really thought about the shape of the distribution of peak events. It's a long-tailed distro, so of course the biggest peaks are much larger than the next-biggest peaks. But this only matters if more than three peaks exceed the threshold during an assessment period (one week). My recollection from earlier data examination was that in many cases there were three or fewer peaks in most assessment periods, so the change would have had little effect. Of course, there are more earlier in the game, and if the fee is too high then agents will go so far in the hole they can never climb out.

I hope to have a better value shortly.

John
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