search

electricitymaps / electricitymaps-contrib

A real-time visualisation of the CO2 emissions of electricity consumption
https://app.electricitymaps.com
GNU Affero General Public License v3.0
3.37k stars 910 forks source link

[Data Issue]: US-NW-PSCO Coal >100% installed capacity #6370

Open fishcharlie opened 5 months ago

fishcharlie commented 5 months ago

When did this happen?

"2024-01-21 20:00 MST" "2024-01-22 03:00 UTC"

What zones are affected?

US-NW-PSCO

What is the problem?

Screenshot 2024-01-21 at 10 11 23 PM

As you can see the coal usage listed is 142.95% of installed capacity

ghost commented 5 months ago

I had a look at the data and it seems like the coal capacity published by the EIA has been 1311.3 MW since 2020. It seems that 700 MW of coal capacity was retired/converted between 2015 and 2017.

Looking at this article from the EIA on coal-to-gas conversion, it seems that at least two generating units in Colorado switched from coal to gas and the data is still published in the EIA as coal.

We will make a note of this and try to contact the EIA for more information :)