Why does nighttime AI use burn dirtier energy?
Fossil fuel dominance: Coal and gas supply up to 90% of overnight electricity.
Solar drop-off: Solar disappears after sunset, while wind delivers only ~30% capacity at night.
Peak carbon hours: Between 2–4 AM, grid intensity rises to 450–650 gCO₂/kWh, compared to 200–300 gCO₂/kWh in the afternoon.
This is complete bullshit in the UK, where energy is greenest in the small hours of the night when demand is low and the wind turbines are still turning. Least green and most expensive is late afternoon and evening, when energy usage spikes.
Let me reiterate. AI is crap. AI is a massive waste of energy, but your website has its calculations off in terms of order of magnitude when it comes to comparing the airline industry pushing tons of metal fast and hard into and through the sky with AI pushing a bunch of electrons through a bunch of transistors. Seriously, way off.
Picked at random, It also claims this:
This is complete bullshit in the UK, where energy is greenest in the small hours of the night when demand is low and the wind turbines are still turning. Least green and most expensive is late afternoon and evening, when energy usage spikes.
Let me reiterate. AI is crap. AI is a massive waste of energy, but your website has its calculations off in terms of order of magnitude when it comes to comparing the airline industry pushing tons of metal fast and hard into and through the sky with AI pushing a bunch of electrons through a bunch of transistors. Seriously, way off.