victronenergy / dynamic-ess

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[VRM - Bug]: dynamic prices do not correspond to ectual prices #149

Open Edrettikketet opened 1 week ago

Edrettikketet commented 1 week ago

Contact Details

e.peetam@hotmail.com

VRM portal ID

102c6b644cfd

Country / region

Netherlands (nl)

B max

22.8

TB max

5

FB max

5

TG max

5.75

FG max

5.75

Battery costs

0.06

Buy price

(p+0.0175+0.1088)*1.21

Sell price

(p+0.0175+0.1088)*1.21

feed-in possible

yes

feed-in control

yes

What happened?

A bug happened!

How is this possible? There seems a mismatch between the actual hour rates and the VRM rates.
How? victron 17-6-2024

When did it happen?

DD/MM/YYYY HH:MM

Screenshots

![DESCRIPTION](LINK.png)
devilmastah commented 4 days ago

I think this answers my confusion this morning when i saw this:

Edit: maybe something goes wrong with the new half an hour pricing calculations that was released 17-06?

IMG_3042 IMG_3044

yesterday seems to be correct however so i do not fully get how this happens:

IMG_3045 IMG_3046

I am not sure about the formula here, i use this, which looked correct so far?

IMG_3043

dirkjanfaber commented 4 days ago

For today's prices, there was a partial decoupling of some European countries from the single Day-ahead market.

For more background see https://www.icis.com/explore/resources/news/2024/06/25/11011378/day-ahead-power-price-spreads-soar-as-markets-decouple-on-technical-issue/

For today it is probably best to either accept the calculation with the (wrong) prices or disable Dynamic ESS for a few hours and do your steering manually. I am not sure how all different providers handle this case.

For the longer term we will implement a better solution.

For the actual issue (which I've overlooked so far), we will take a closer look as well.