Power System Frequency data and discussion.

This is a site dedicated to power system frequency and timing. The name is a play on words – I gather frequency data from the grid using the wall outlet in my home, and this site is an outlet for the data.

I’ve been meaning to do this for a while, but the July 22, 2026 data center event was the motivation for finally getting it started.

Latest Eastern Interconnection frequency events shown here:

https://www.freqoutlet.com/freq/ei

https://www.freqoutlet.com/freq/wecc