This repository contains 
- electricity price data
- heat and power demand data
It does not contain gas price data and EU ETS price data because those cannot be shared. 

The electricity price data is taken from: https://transparency.entsoe.eu/. 
The data underlying the calculations of heat and power demand data stems from the repositories with the following doi. Olefins: 10.5281/zenodo.14825234; Ethylene oxide: 10.5281/zenodo.14833785; Ethylbenzene: 10.5281/zenodo.14910309; Ethylene glycol: 10.5281/zenodo.14833785; PET: 10.5281/zenodo.14833721. The data is an output of the following reasearch project: https://www.nwo.nl/en/projects/ttw-vic183010.  
For the source of the other input data we refer to the published research paper.