Carbon intensity update for 4th Nov 25

UK Carbon Intensity Update – November 4, 2025

Today’s carbon intensity data brings encouraging insights for environmentally conscious energy users across the UK. On November 4, 2025, electricity consumption during the early hours of the day showed significantly low carbon emissions, with a carbon intensity ranging from 56 to 75 gCO₂/kWh. This favorable condition was primarily due to the strong contribution from renewable energy sources powering the grid overnight and during the morning hours.

Low carbon intensity means that the electricity being consumed has a smaller environmental footprint, indicating that cleaner energy sources—like wind, solar, and hydro—were dominant. These are the optimal periods to run high-energy appliances such as dishwashers, washing machines, or charging electric vehicles.

As the day progressed, however, there was a noticeable increase in carbon emissions. Between 14:30 and 20:30, carbon intensity levels shifted to a moderate rating, peaking at 122 gCO₂/kWh in the late afternoon. This spike often occurs when electricity demand rises, and the supply from renewable sources is no longer sufficient to meet the grid’s needs. As a result, fossil fuel generators—particularly coal and natural gas—are brought online to balance demand and supply, raising overall emissions.

Thankfully, after 20:30, the carbon intensity index dropped back to low levels, offering another opportunity for eco-friendly energy use throughout the night. These fluctuations underscore the importance of making smart energy choices based on real-time carbon intensity data.

At Jaxi, we provide daily carbon intensity updates to empower users to make informed decisions about when to use electricity. By aligning your high-consumption activities with low-intensity periods, you can reduce your carbon footprint and contribute to a more sustainable future.

Quick Tips to Reduce Your Carbon Impact:

• Schedule energy-heavy appliances (e.g. washing machines, dryers) during low carbon intensity hours.
• Use smart plugs and timers to automate your energy usage around low-emission periods.
• Stay updated with daily emissions reports via our Carbon Intensity Tracker.
• Consider switching to appliances with higher energy efficiency ratings.

Together, we can make a measurable difference by using electricity more wisely. Check back daily for updates and insights to help you plan and reduce your home’s carbon emissions effortlessly.