Octopus Energy has paid out more than £1 million to customers in its latest energy challenge.
The energy supplier said more than 400,000 customers reduced their energy use between 4.30pm and 6pm on Tuesday.
chart It was designed to help reduce stress on the power grid by paying customers to turn off appliances.
The average customer was paid £ 2.50 in special points, which gave him the right to receive bonuses, reducing the order by about 60% on average.
The top 5% were paid an average of £15 in points.
Customers were paid 3,200 discounted OctoPoints, the equivalent of £4.
Octopus said preliminary data showed it had reduced UK energy use by around 250MWh – the same as the off-grid city of Liverpool for an hour.
The company said the engagement on Tuesday was similar to the one on Monday, but as the Tuesday event was higher paying and there was 30% less power than the night before, less than £1m was paid out on Monday.
The so-called elasticity of demand service was launched by the National Electricity Grid Operator (ESO) to help reduce peak demand at times when supplies are lower than normal.
Octopus is the most active in the new scheme, although several other energy suppliers have also been involved in the system, which was first launched on Monday night after being tested on several occasions previously.
By requiring households to use electricity at slightly different times than usual, the grid doesn’t have to pay expensive power plants to go online and produce more power.
Experts consider it a first step toward a system in which smart technology in people’s homes helps shift usage to off-peak times, saving households money and relieving pressure on the power grid.