SDAC 15-minute compat

[rotsee]

Is this library expected to keep working as before after the shift to 15-minute resolution on June 11 2025?

If not, maybe we can use this as a tracking issue for whatever changes need to be done?

[kipe]

It might, it might not. Depends on how the Nordpool API changes, if it changes.

As we're using an unofficial API, there's not much to do before the change, we need to wait for the public Nordpool pages to update.

//E: I'm also planning on including an option for hourly prices for convenience reasons, maybe even defaulting to it; I doubt many consumers will have a contract with the 15 minute resolution in quite a few years.

[flopp999]

Sound great.
Today I have hourly fee and my contract will change to 15 min fee on the 12th of June, even if my contract says 1 hour they will change.

[kipe]

@flopp999
Oh, that's quite interesting.

In Finland I haven't seen any indication of new contract types for 15 min spot. Most likely it's because there's still quite a lot of utility meters installed around 2010 which require replacing to support 15 min -> I think that the energy companies don't want even to start offering contracts as there would be confusion if the clients meter supports it. The grid companies have until 2028 to replace the meters, so I myself might still have to wait a while.

[flopp999]

@kipe
Consumers in Sweden must have a smart meter latest 1/1 2025, which is passed :)
Read more about dates for 15 min below
https://www.nordpoolgroup.com/en/trading/transition-to-15-minute-market-time-unit-mtu/

[flopp999]

I don't know if this can help anyone to update the code?
https://data.nordpoolgroup.com/auction/day-ahead/price-indices?deliveryDate=2025-04-16&currency=SEK&resolutionInMinutes=15&indexNames=SE4

[flopp999]

this link will give 15 min for SE4

curl -X GET -H "Accept: application/json, text/plain, /" "https://dataportal-api.nordpoolgroup.com/api/DayAheadPriceIndices?date=2025-04-16&market=DayAhead&indexNames=SE4&currency=SEK&resolutionInMinutes=15"

[kipe]

@flopp999
In Finland 80 % of the consumers had to have a smart meter at the end of 2013, that's why we now need to wait for new replacements as the originals only support 1 hour resolution. The 15 min capable devices need to be installed by the end of 2028.

Those normalized price indices might actually be the ones to use; this would allow easy selection of the time resolution you want. If prices exist at the wanted resolution, they would match the real ones and otherwise they would be calculated by Nordpool. This way you can easily select the resolution of your contract without making other changes. Also, we can already implement it.

Great spot, that must be a fairly new addition as I think it wasn't there last week when I last checked it. If anyone is up for a PR, it would be great. I'm currently very busy with work :(

This is how I would see it:

• Add a resolution selector to elspot.Prices.fetch in minutes. It should default to 60 to keep current behaviour and allow 15 and 30 min resolutions in addition.
• Update the fetch URLs to use DayAheadPriceIndices.
• Update the tests to include tests for each resolution.

[rotsee]

+1 for keeping 60 minute aggreggates the default

[corneel27]

In the Netherlands most of the energy companies support from 11/12 June 2025 the 15min resolution day ahead prices.
I would like to give the users of my software from that moment the ability to get 15 min prices.
Nearly all the Dutch consumers have a smart meter which support the 15min resolution.
Can you drop here a message when I am able to test when you have implemented the additional resolution selector .
Thanks in advance!

[kipe]

I now opened PR #64 to implement this. Someone looking over especially the tests for usage would be good before merging.

[kipe]

This has now been implemented and published as version 0.5.0.

I just updated one of my own projects and didn't at least run into any issues in the integration tests.

[ismoo1]

I read from finnish Väre just today, that postponed to 1st October: Quarter-hourly electricity will be introduced on October 1, 2025.

The original schedule for transitioning to 15-minute price periods in electricity exchanges was June 12, 2025, and for Väre's customers involved, the transition would have occurred on July 1, 2025. However, on May 14, 2025, European electricity exchanges and transmission system operators stated that the readiness for the change was not yet sufficient, and therefore, the transition to quarter-hourly electricity will only take place at the turn of September–October. This expert article has been modified to reflect the change." https://vare.fi/porssisahko-varttisahkoksi/