Carbon Tracker
Tracking how many hours each year the GB grid runs at or below the government's 2030 clean power target carbon intensity. The more hours at the target, the closer we are to a decarbonised grid.
Hours at the 2030 target per year
Total hours in each calendar year when GB electricity carbon intensity met the 2030 target. The count rises as more wind, solar and nuclear displace gas — years with higher renewable output typically score more hours. The most recent year may be incomplete.
Cumulative hours at the 2030 target — by year
How the cumulative count of hours at the target builds through the year, compared across years since 2016. Steeper lines indicate periods of low-carbon generation — typically high wind and solar months. Comparing years shows how the grid is improving over time.