Carbon intensity update for 7th Nov 25

UK Carbon Intensity Update – 7th November 2025

Understanding carbon intensity is key to making smarter energy choices that benefit both the environment and your household. At Jaxi, we’re committed to helping you stay informed so you can reduce your carbon footprint by using electricity at cleaner times of the day. Here’s the official update on UK carbon intensity for 7th November 2025.

Early Morning (00:00 – 05:30 AM): High Carbon Intensity
During the night, carbon intensity remained high, starting at 197 gCO2/kWh and peaking at 204 gCO2/kWh. This suggests a greater dependence on fossil fuel generators such as coal and gas when renewable energy sources like wind and solar aren’t readily available.

Morning Peak (06:00 – 08:00 AM): Increased Demand
As the nation woke up and energy usage surged, carbon intensity reached as high as 222 gCO2/kWh. This increase reflects heightened grid demand, often met by non-renewable power sources due to limited green energy supply during early hours.

Daytime Hours (09:00 AM – 05:30 PM): Consistently High Levels
Throughout standard working hours, carbon intensity averaged around 209 gCO2/kWh. This sustained level highlights continued pressure on the grid and a steady reliance on carbon-heavy electricity generation.

Evening Use (06:00 – 09:00 PM): Slight Improvement
During the evening, carbon intensity slightly improved but remained high, hovering around 211 gCO2/kWh. As people returned home and household consumption rose, clean energy availability was still limited.

Late Night (10:00 PM onwards): Cleaner Energy Window
After 10:00 PM, carbon intensity started to drop noticeably. By 11:30 PM, levels reached a more moderate 171 gCO2/kWh. This cleaner energy window is an ideal time to run appliances like dishwashers or washing machines to reduce environmental impact.

Why This Matters
When electricity demand exceeds the supply of renewable energy, the grid turns to fossil fuels—leading to higher carbon emissions. By planning your energy use based on carbon intensity trends, you can help reduce emissions and support a more sustainable energy system.

Helpful Tip: Try shifting non-essential electricity usage to off-peak, lower-intensity times. Not only will this help the planet, but it may also reduce your energy bills, especially if you’re on a time-of-use tariff.

Stay tuned to Jaxi for regular carbon intensity updates and smart energy tips to make your home greener. Together, we can build a cleaner future one decision at a time.

Note: All values represent calculated grams of CO2 emitted per kWh for each half-hour period, sourced from official UK electricity grid data.