Unfortunately, the crux is data availability and reliability from system/transmission operators. For example, there is no online data available for the Northern Territory of Australia, so you can't build a parser for it. Some data providers have frequent data outages for different regions (ENTSOE), as there is no SLA or contractual obligation for providing data reliably.

If you're aware of a region that has live data available and is not yet live on electricitymap.org, please consider contributing a parser [1]! If you live in a region without live data, please consider politely requesting such data be made available through utility and system operator contacts, or explore requiring such data be made available by law (if public policy is your thing).

[1] https://github.com/tmrowco/electricitymap-contrib#adding-a-n...