Carbon intensity update for 8th Nov 25

UK Carbon Intensity Update – 8th November 2025

Understanding when electricity is generated from cleaner or more carbon-intensive sources can help households and businesses make smarter energy choices. At Jaxi, we’re committed to keeping you informed about daily carbon intensity levels so that you can plan ahead and reduce your environmental impact.

On Saturday, 8th November 2025, the UK saw varying levels of carbon intensity throughout the day. Here’s a breakdown and some tips on when best to use power-hungry appliances like washing machines, dishwashers, or charging electric vehicles.

Midnight to Morning (12:00 AM – 5:00 AM):

Carbon intensity remained at moderate levels, ranging between 164 to 175 gCO₂/kWh. This is a relatively cleaner part of the day, making it a good window for energy-efficient usage while most renewable sources are still contributing to the grid.

Morning Surge (5:00 AM – 7:00 AM):

As the nation began to wake up, energy demand surged, pushing carbon intensity up to 205 – 218 gCO₂/kWh. This increase often indicates that fossil fuel generators, such as coal or gas, are being activated to meet demand.

Daytime Trends (7:00 AM – 1:00 PM):

The high intensity persisted throughout the late morning, staying mostly above 190 gCO₂/kWh. During these hours, limited availability of solar and wind may lead to increased reliance on non-renewable sources.

Afternoon to Evening Peak (1:00 PM – 8:00 PM):

Carbon intensity reached its highest point for the day, peaking at 240 gCO₂/kWh. This is typically due to high household and commercial usage, coinciding with a dip in renewable generation as the sun sets.

Evening Transition (9:30 PM onwards):

Post 9:30 PM, a positive shift was observed, with carbon intensity dropping to 136 gCO₂/kWh by late night. These low-carbon hours are ideal for scheduling heavy appliance use, especially if you’re looking to reduce your carbon footprint.

Why This Matters

Carbon intensity reflects how environmentally friendly the electricity on the grid is at any given time. When demand rises and renewable sources can’t keep up, fossil fuels like coal and natural gas are used — resulting in higher emissions.

Energy-saving tip: Try shifting major appliance use to times with lower carbon intensity. Not only can this help reduce strain on the grid, but it also supports your efforts toward a more sustainable lifestyle.

Stay connected with Jaxi for daily updates on carbon intensity and smart energy planning. Together, we can make conscious choices for a greener, cleaner future.