Carbon intensity update for 31st Oct 25

On 31st October 2025, the UK experienced impressively low carbon intensity levels throughout the day, marking another positive step towards a more sustainable energy future. At Jaxi, we’re committed to providing daily updates on carbon intensity, helping households and businesses make greener choices when using electricity.

Why is carbon intensity important?

Carbon intensity measures how much carbon dioxide (CO2) is emitted to produce one kilowatt-hour (kWh) of electricity. When demand exceeds supply from low-carbon sources like wind, solar, and nuclear, fossil fuel generators may be used, causing spikes in CO2 emissions. By staying informed, you can reduce your environmental impact by choosing to run power-hungry appliances when carbon intensity is at its lowest.

Carbon Intensity Breakdown for 31st October 2025

• Midnight to 7:00 AM: Carbon intensity remained low, ranging from 62 to 77 gCO₂/kWh. Renewable energy sources dominated the grid during these early hours, making it an ideal time for overnight appliance use.
• 7:00 AM to 12:00 PM: Carbon levels held steady between 68 and 77 gCO₂/kWh. Although there were minor deviations from forecasts, overall emissions stayed within an environmentally friendly range.
• 12:00 PM to 5:00 PM: Carbon intensity varied slightly, hovering between 66 and 78 gCO₂/kWh. A forecasted demand increase around 4:00 PM caused a brief peak, but actual figures showed continued low-carbon generation.
• 5:00 PM to Midnight: Evening hours saw a progressive drop in emissions, with carbon intensity decreasing from 75 to just 49 gCO₂/kWh. The day’s lowest point occurred at 11:30 PM, highlighting a great window for energy usage with minimal environmental impact.

What does this mean for you?

By syncing your energy usage with low carbon intensity periods, you can help reduce CO₂ emissions and support a cleaner national grid. Whether it’s charging electric vehicles, doing laundry, or running dishwashers, consider shifting these activities to times when renewable energy is more dominant.

At Jaxi, our mission is to help users make smarter, more sustainable energy decisions. Keep checking our Carbon Intensity Updates to stay informed and become part of the movement towards a net-zero future.

Together, we can take meaningful steps to fight climate change—one kilowatt-hour at a time.