New plug-in solar panels set to be released in the UK later this month could reduce household energy bills by nearly £100 annually, although the greatest savings will be seen by those who spend most of their time at home. Retailers including B&Q, Currys, Lidl, and Amazon are expected to stock these kits from August 27, following the introduction of new regulations permitting their sale.
The plug-in solar panels, which come in two-panel kits priced at around £350, are designed for easy installation and can be placed on balconies, flat roofs, gardens, or walls. Unlike conventional rooftop solar systems, these devices do not store generated energy; electricity must be consumed immediately, or it will be sent back to the grid without compensation. This distinguishes them from traditional solar panels, which allow excess power to be sold back to the grid.
Energy Secretary Miatta Fahnbulleh described the new rules as potentially “transformative,” highlighting their potential to enhance energy security for the country and offer financial relief to households. However, users should be aware that the upfront costs will take time to recover. With an average annual saving of about £85, the initial investment is expected to pay off in roughly four years. This estimate does not include the cost of a recommended electrical safety check, which can exceed £150. Although not mandatory, such checks are advised because many UK residential wiring systems are older and may not be optimized for power flowing back into the household circuit from a plug-in source.
The panels feature built-in microinverters that connect to a standard three-pin socket and supply electricity directly to any appliances on the same household circuit, with a maximum output of 800 watts. This output is roughly equivalent to the power consumption of common household items such as microwaves or kettles. Experts caution that the panels are not suitable for feeding power into a dedicated circuit commonly used for larger rooftop systems.
Joanna O’Loan from the Energy Saving Trust noted that the launch offers a new option for consumers who cannot install traditional solar panels—whether due to rental arrangements, lack of roof access, or affordability constraints. According to her group’s calculations, an average household in a city like Manchester could save approximately £85 annually with current electricity prices. For those working from home or spending more time indoors, savings could reach nearly £97 per year, while those away during working hours might see a reduction to around £69.
Plug-in solar panels have already been popular in Germany, where about one million units were sold between 2022 and 2025. UK energy officials said they are evaluating future possibilities to allow users to sell excess generated electricity or integrate battery storage solutions.
Jess Ralston, head of energy at the Energy and Climate Intelligence Unit, predicted strong consumer interest in the products, suggesting they could serve as an entry point for more advanced clean energy technologies. “It’s a way for people to save a bit of money and take back a bit of control over their energy,” she said. “Once they have this, they might consider getting a small battery or even an electric vehicle.”
For now, the benefits will be most accessible to stay-at-home individuals such as retirees and remote workers who can maximise immediate energy use generated by the panels.