Carbon intensity update for 25th Sep 25

Stay informed about the UK’s electricity carbon intensity with Jaxi’s latest update for 25th September 2025. Monitoring carbon intensity helps households and businesses make smarter energy decisions—reducing their environmental impact while optimizing electricity usage.

UK Carbon Intensity Overview – 25th Sep 2025

Today’s data highlights how electricity demand directly influences the UK’s reliance on high-emission sources. When demand exceeds the capacity of renewable sources like wind and solar, fossil fuels such as coal and gas are used to meet the shortfall—resulting in higher carbon emissions.

Carbon Intensity During the Day

• Low Carbon Intensity (9:00 AM – 10:30 AM): The cleanest period of the day, with carbon intensity values ranging between 91 to 80 gCO₂/kWh. This is an ideal time to run major appliances like washing machines or dishwashers to minimize your carbon footprint.
• Moderate to High Intensity (5:00 PM – 5:30 PM): Carbon intensity peaked at 164 gCO₂/kWh during evening demand spikes. Increased fossil fuel usage during this time makes it less eco-friendly for heavy energy consumption.
• Evening Decline (7:00 PM onwards): Emissions gradually dropped during the evening, closing the day with a lower intensity of 94 gCO₂/kWh by 11:00 PM.

Why Carbon Intensity Matters

Electricity generation isn’t always green. When public demand exceeds what renewable sources can provide, backup generators powered by coal, natural gas, or oil kick in—producing higher carbon emissions. By adjusting when we use energy-intensive devices, we can help reduce the need for high-emission generation.

Smart Tips to Lower Your Carbon Impact

• Use high-energy appliances like washing machines or electric vehicle chargers during low-carbon intensity periods.
• Install smart energy meters or mobile apps to monitor real-time carbon intensity in your region.
• Consider switching to green energy tariffs or integrating home solar systems to further reduce reliance on fossil fuels.

Every small action makes a big difference. At Jaxi, we’re committed to helping you stay informed so you can plan smarter and contribute to a more sustainable future.

For real-time updates and daily carbon intensity forecasts, visit Jaxi’s Carbon Intensity Update page or explore trusted energy monitoring platforms.

Together, let’s move towards a cleaner, greener grid—one decision at a time.