The UK's energy system operator, National Grid, has started to rely more heavily on voluntary demand reduction to balance supply and demand. As a result, households and businesses are being incentivised to reduce their electricity consumption during peak hours. This is typically between 4 pm and 7 pm, when energy demand is at its highest.
The system works by identifying households and businesses that are willing to reduce their energy usage during these peak hours. Those who agree to do so are then paid through a scheme called the Demand Flexibility Service (DFS). The DFS allows households to earn money by reducing their energy consumption, while helping to prevent power outages.
According to National Grid, the DFS has been successful in reducing energy demand during peak hours. In the first six months of 2026, the scheme helped to reduce demand by over 1 gigawatt, which is equivalent to powering around 700,000 homes.
Analysts believe that this shift towards voluntary demand reduction is a key part of the UK's strategy to manage its power grid, particularly as the country moves towards cleaner, renewable energy sources. 'This is a crucial step towards decarbonising the grid,' said Rachel Fletcher, a senior analyst at Energy UK. 'By incentivising households and businesses to reduce their energy consumption, we can reduce the strain on the grid and make it easier to integrate more renewable energy sources.'
However, some critics argue that the DFS scheme is not sufficient to address the UK's energy needs. 'While the DFS is a good start, it is not enough to prevent power outages during periods of high demand,' said a spokesperson for the energy industry trade body, Energy and Utilities Alliance (EUA). 'We need to see more significant investment in energy storage and grid infrastructure to ensure a reliable and secure energy supply.'
As the UK continues to transition to a low-carbon economy, the role of voluntary demand reduction in managing the power grid is likely to become increasingly important. With the DFS scheme set to continue for now, households and businesses are being encouraged to participate and help reduce their energy consumption during peak hours.