MWh per day? TWh per year?

In what world are these sensible units of power? Why can't we just use Watts FFS?

Btw:

1 MWh per day ≈ 42 kW

1 TWh per year ≈ 114 MW

Or:

All Chat GPT users: 850 MWh / day = 310 GWh / year ≈ 35.4 MW

All AI users: 15 TWh / year ≈ 1.7 GW