Home battery owners turn to AI to sell power

The article highlights how extreme heat can create financial opportunities for individuals with home batteries and solar panels. During a heatwave in June, when London hit 34 degrees Celsius, electricity demand rose and prices surged in the evening as solar generation fell. Andrew Austin, a 34-year-old homeowner, had charged his battery during cheaper daytime hours and automatically sold the stored power for £60 ($82) between 4 p.m. and 9 p.m., earning roughly a typical monthly electricity bill for an apartment dweller in a few hours.

This example illustrates a broader trend: millions of people are using solar panels and batteries to sell excess energy back to the grid. The setup relies on automated software that downloads price data from utilities like Octopus Energy, which publishes rates every 30 minutes. By buying low and selling high, individuals can profit without manual intervention, turning home energy systems into small-scale trading tools.

The article suggests that as climate change brings more extreme weather, such opportunities may become more common. However, the piece focuses on one individual's experience and does not provide broader data on profitability or participation rates. The key takeaway is that technology is enabling ordinary homeowners to participate in energy markets, potentially reshaping how electricity is bought and sold at the grassroots level.