Short answer
Renewable share rises when wind, solar, hydro and biomass make up more of generation, and falls when demand is high or weather-dependent output is low. Wind is often the largest renewable driver in Great Britain.
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Great Britain covers England, Scotland and Wales; Northern Ireland operates in a separate electricity market.
Renewable share right now
The dashboard summarises the current renewable share using the live generation data available at the latest refresh. This helps show whether clean generation is carrying a large part of demand or whether flexible backup is doing more work.
Wind generation
Wind is the biggest swing factor in Britain’s renewable electricity mix. Strong wind can reduce gas generation and carbon intensity for long periods. Low-wind periods often require more gas, imports or other sources.
Solar generation
Solar output is highly time-of-day and season dependent. It is strongest around midday, especially in spring and summer, and drops quickly towards evening demand peaks.
Hydro and biomass
Hydro, pumped storage and biomass are smaller than wind and solar but still matter. Storage can respond quickly to system needs, while biomass is often treated separately because its carbon accounting is more complex than wind or solar.
Why renewable output changes
Renewables depend on weather, season, daylight and grid conditions. That variability is not a flaw in the data; it is the central reason dashboards like EnergyMix.info are useful.
FAQs
What counts as renewable electricity?
Usually wind, solar, hydro and sometimes biomass. EnergyMix.info labels categories carefully because sources and carbon accounting can vary.
Why is renewable share high at night sometimes?
Wind can be very strong overnight while demand is lower, so renewables can cover a larger share of the grid.
Does high renewable output lower carbon intensity?
Usually yes, especially when it reduces gas generation. The exact carbon intensity also depends on demand, imports and other sources.
Related pages
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