Carbon intensity update for 22nd Oct 25

UK Carbon Intensity Update for 22nd October 2025

At Jaxi, we’re committed to helping households across the UK make smarter, more eco-friendly energy decisions. Tracking carbon intensity — the amount of carbon dioxide emitted per kilowatt-hour of electricity used — is crucial in reducing your carbon footprint and supporting a greener energy system.

On 22nd October 2025, carbon intensity levels varied significantly throughout the day. Understanding these fluctuations can help you plan when to run your home appliances for maximum environmental benefit.

Low Intensity Periods (Below 100 gCO₂/kWh)

Between midnight and 5:00 AM, carbon intensity levels remained impressively low, ranging from 57 to 122 gCO₂/kWh. This is primarily due to reduced demand and higher availability of renewable energy sources during these off-peak hours. If you’re an early riser — or a night owl — this is the perfect time to schedule high-energy tasks like charging electric vehicles, doing laundry, or running dishwashers.

Moderate Intensity Periods (100–200 gCO₂/kWh)

The early morning hours (5:00 AM to 6:30 AM) and late morning through midday (9:30 AM to 12:00 PM) experienced moderate carbon intensity readings, with levels rising from 147 to 183 gCO₂/kWh. A similar dip occurred in the evening, between 9:30 PM and 11:00 PM. These periods present a good opportunity to use appliances if early morning isn’t convenient.

High Intensity Periods (Above 200 gCO₂/kWh)

The highest emissions were recorded between 6:00 AM and 9:30 AM and again from 12:30 PM to 9:00 PM, with a peak of 257 gCO₂/kWh at 6:30 PM. These high-carbon hours often result from increased electricity demand that surpasses what renewable sources can supply, leading grid operators to rely on fossil fuels such as coal and natural gas.

Why Carbon Intensity Matters

When electricity demand is high, and renewable sources are insufficient, fossil fuel generators must fill the gap — contributing to higher emissions. By shifting your energy usage to times of lower carbon intensity, not only do you reduce your household’s environmental impact, but you also ease pressure on the grid, helping to minimise the need for carbon-heavy generation methods.

Energy-Saving Tip from Jaxi

To contribute to a low-carbon future, try running major household appliances during low or moderate intensity periods. Making small changes to when you consume electricity can lead to significant climate benefits over time.

Stay informed with Jaxi’s daily carbon intensity updates and practical tips for sustainable energy use. Together, we can make a difference — one switch at a time.

Visit Jaxi for more insights and tools to help you live more sustainably.