Carbon intensity update for 15th Sep 25

At Jaxi, we’re committed to keeping you informed about the UK’s carbon intensity levels, empowering you to make greener energy choices. Our latest update for 14th–15th September 2025 reveals a promising trend towards cleaner electricity as renewable energy sources continue to play a larger role in powering our grid.

Electricity carbon intensity measures how much carbon dioxide is emitted to produce electricity (measured in grams of CO₂ per kilowatt-hour – gCO₂/kWh). When demand increases and renewable sources run low, fossil fuels like coal may be used, leading to higher emissions. Timing your appliance usage during periods of low carbon intensity can significantly reduce your environmental impact.

Carbon Intensity Highlights: 14th–15th September 2025

• 14th Sept, 23:00 – 23:30: Forecast: 57 gCO₂/kWh | Actual: 54 gCO₂/kWh (Low)
• 15th Sept, 00:00 – 06:00: Consistently low values between 54 and 71 gCO₂/kWh
• 15th Sept, 07:00 – 09:00: Dip to ultra-low levels around 38 gCO₂/kWh
• 15th Sept, 10:00 – 13:00: Stable low emissions between 37–40 gCO₂/kWh
• 15th Sept, 15:00 – 17:00: Slight rise with peaks up to 67 gCO₂/kWh
• 15th Sept, 18:00 – 19:30: Returning to lower levels between 59–65 gCO₂/kWh
• 15th Sept, 20:00 onwards: Stabilising at around 54–58 gCO₂/kWh

This downward trend in carbon intensity highlights the positive impact of wind, solar, and other renewable sources in meeting our national energy demands. By aligning your high-energy tasks—like laundry, dishwashing, or vehicle charging—with periods of low carbon intensity, you can help reduce strain on the grid and lower your personal carbon footprint.

At Jaxi, we believe that informed energy usage is a powerful step toward climate action. Through real-time updates and forecasts, we give you the insights needed to plan smarter—and greener—energy consumption throughout the day.

Every small action helps build a more sustainable UK. Stay tuned for regular carbon intensity updates and join us in supporting a cleaner, renewable-powered future.