Carbon intensity update for 5th Nov 25

On November 5, 2025, the UK experienced varying levels of carbon intensity throughout the day. At Jaxi, we’re committed to helping you stay informed about the carbon footprint of your electricity usage so you can make smarter, more sustainable energy choices.

Carbon intensity, measured in grams of CO₂ emitted per kilowatt hour (gCO₂/kWh) of electricity consumed, reflects how clean or polluting the electricity on the grid is at any given time. Knowing when emissions are lowest helps you plan the best times to use high-energy appliances like washing machines, dishwashers, and electric vehicle chargers.

Overview of Carbon Intensity – November 5, 2025

Midnight to 7 AM: Low Emissions

The day began with low carbon intensity levels—ideal for running energy-hungry devices. Between midnight and 7 AM, readings remained within the low intensity range, fluctuating between 57 gCO₂/kWh and 107 gCO₂/kWh. This period benefited from strong contributions from renewable energy sources such as wind and nuclear.

7 AM to 8 PM: Moderate Increase During Peak Demand

As demand increased during daytime hours, so did carbon intensity. From 7 AM to 8 PM, emissions entered the moderate range, reaching a high of 151 gCO₂/kWh at approximately 5:30 PM. This spike aligns with evening household energy usage and illustrates the strain on renewable resources during peak hours, often requiring backup from fossil fuel-based power generation.

8 PM to Midnight: Decline in Carbon Intensity

After 8 PM, carbon intensity began to decline steadily, ending the day at around 110 gCO₂/kWh. Although still moderate, this downward trend reflects a gradual return to cleaner energy sources as national electricity demand decreased.

What This Means for You

• Best Time to Use Electricity: Midnight to 7 AM had the lowest carbon output — a great window for using high-power appliances.
• Peak Demand Challenges: High usage during the evening stresses the grid and increases reliance on carbon-heavy sources like coal and gas.
• Positive Evening Trends: Even after dark, emission levels dropped, indicating better grid efficiency and renewable integration.

By staying updated on real-time carbon intensity data, you can contribute to reducing emissions simply by adjusting your daily energy habits. At Jaxi, we believe in empowering users to take action for a more sustainable future.

Check back regularly for our daily updates on UK carbon intensity, and make every kilowatt count towards a cleaner planet.