DAG-UPB/TS-Arena-Archive

TS-Arena Archive

This dataset contains historical time-series data from the TS-Arena. It is provided for offline model evaluation and backtesting. Additional domains (such as urban mobility) and regions will be added as they become available on the TS-Arena platform.

Evaluation Rules

Researchers using this data must follow these guidelines:

• Self-Reported Status: It must be clearly stated in any publication that results are based on self-obtained evaluation using the TS-Arena Archive and are not official rankings from the TS-Arena platform.
• Leakage Prevention: A strict temporal split must be maintained. Users are responsible for using a training dataset cutoff date strictly before the start of the evaluation period.
• Official Rankings: Inclusion in the leaderboard and future TS-Arena Archive dumps requires participation in the challenges at ts-arena.live.

Data Sources & Attribution

Data Provider	Type	License	Attribution String
CAISO	CA Electricity	Public Domain	Source: California ISO (CAISO)
NYISO	NY Electricity	Public Domain	Source: New York ISO (NYISO)
SMARD (BNetzA)	DE Electricity	CC BY 4.0	Bundesnetzagentur / SMARD.de
Fingrid	FI Electricity	CC BY 4.0	Source Fingrid / data.fingrid.fi

Legal Disclaimers

• General: All data is provided "As Is." This project is not affiliated with or endorsed by CAISO, NYISO, or any other grid operator. Market data is subject to retroactive corrections; the project and providers are not liable for losses resulting from data use.
• Global License: This collection is distributed under CC BY 4.0. Attribution to the respective data providers (see table above) is required.

Note on licensing: Earlier revisions of this archive were released under the more restrictive CC BY-NC-SA 4.0 as a precaution, owing to the terms of a fuel-price source we had planned to include. That source is no longer part of the archive, so the precautionary restriction is no longer warranted. All remaining data is either Public Domain or CC BY 4.0, and the collection has therefore been relicensed under the broader CC BY 4.0.

Citation

@misc {meyer2026tsarenaliveforecast,
title={TS-Arena -- A Live Forecast Pre-Registration Platform},
author={Marcel Meyer and Sascha Kaltenpoth and Henrik Albers and Kevin Zalipski and Oliver Müller},
year={2026},
eprint={2512.20761},
archivePrefix={arXiv},
primaryClass={cs.LG},
url={https://arxiv.org/abs/2512.20761},
}