Carbon intensity update for 23rd Nov 25

Date: 23rd November 2025
Stay informed with the latest carbon intensity updates from Jaxi to help you make smarter, greener energy usage decisions. Today’s data reveals how clean or carbon-heavy your electricity was at different times throughout the day.

Midnight to 3 AM:
Carbon intensity remained low, starting at 85 gCO₂/kWh and dropping to as low as 68 gCO₂/kWh. This is an ideal period for running appliances that consume high energy, such as dishwashers or washing machines.

3 AM to 6 AM:
Carbon emissions continued to stay low, ranging between 68 and 50 gCO₂/kWh. Low-demand hours like this are powered largely by renewable sources, making them eco-friendly windows for electricity usage.

6 AM to Noon:
Energy remained clean and stable, with carbon intensity holding steady between 50 and 53 gCO₂/kWh. A great time to use electricity without contributing much to CO₂ emissions.

Noon to 3 PM:
Slight increase in intensity observed, peaking at 63 gCO₂/kWh. Although still classified as low, it indicates a mild uptick in demand.

3 PM to 4 PM:
Carbon intensity rose to moderate levels, reaching up to 105 gCO₂/kWh. As electricity demand increased, fossil fuel-based backup generators likely supplemented supply.

4 PM to 7 PM:
This evening window marked the highest carbon intensity of the day, hovering around 115 gCO₂/kWh. Try to delay high-energy activities during these hours and help reduce the need for carbon-intensive power generation.

7 PM to 9 PM:
The intensity began to decline, falling back into the low range by 8 PM at 95 gCO₂/kWh. The grid began to rely more on renewables again as demand lessened.

9 PM to Midnight:
The day ended on a cleaner note, with carbon intensity dropping from 71 to 50 gCO₂/kWh, reflecting lower demand and a return to greener energy sources.

Key Takeaways:

• Most of the day maintained low carbon intensity, especially overnight and through the morning hours.
• A moderate spike occurred between 3 PM and 7 PM, coinciding with peak electricity demand.
• Plan energy-intensive tasks such as charging electric vehicles, doing laundry, or cooking outside the moderate window to help reduce your carbon footprint.

Understanding when carbon intensity is highest helps you use electricity more sustainably. By shifting energy usage to cleaner periods, you contribute to reducing the reliance on fossil fuels like coal and gas during peak hours, which helps lower nationwide emissions.

Stay tuned with Jaxi for real-time updates on UK carbon intensity and make each watt count toward a cleaner, greener future.