| In the UK, the National Grid is compelled to maintain the frequency of the supply to ±1% of the nominal frequency of 50 Hz, the limits being...
MkStevo - MkEDS (3)
![Electricity [Grid] Frequency Meter V2](https://cdn.xingosoftware.com/elektor/images/fetch/dpr_1,w_800,h_340,c_fit/https%3A%2F%2Fwww.elektormagazine.com%2Fassets%2Fupload%2Fimg%2Fpublic%2Foriginal%2Fimg-20200706-215342r.jpg)
| Measure the frequency on the national grid and determine the load on the generating equipment.
| 40 LEDs. Some 1960s inspiration. And a dash of style.