One U.K. homeowner said their electricity bill has stayed at roughly £0 for about half the year thanks to a solar panel setup that also covers home heating.
Here's what to know
They shared their story and setup in Reddit's r/SolarUK community, explaining how the combination of rooftop solar, battery storage, and smart tariffs can transform a household energy budget, and, in some cases, push energy spending below zero.
"I know it works, I knew it'd save me money year on year and pay itself off as it did, but it still amazes me that for at least half of the year I pay nothing for electricity, including all my heating via [an air-source heat pump]," the original poster said.
They added, "And even through the darker and colder months, it's a massive saving compared to bills previously!"
"That's great!" one commenter wrote. "It reminded me to check where mine is at. This year so far, imported £689.38, exported £791.97 and got other credits of £144.82 (sunday saver etc), so my total energy bill for 2026 is currently negative at -£247.41."
Another user said they were also at about "-£250" while running two electric vehicles, adding that they had "previously spent £500 a month on diesel!"
More background
Notably, the OP's near-zero power costs also covered heating from an air-source heat pump, which can represent a major slice of household energy use and can drive winter bills higher.
Households that generate extra solar power during brighter months can export it to the grid for credits or payments, helping offset darker periods when they need to import more electricity. That kind of setup can lower bills, reduce fuel spending, and cut demand for electricity generated from dirty energy sources.
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For households considering a similar move, going solar is clearly one of the best ways to save money on home energy. Homeowners can explore EnergySage to get free solar panel installation estimates and compare quotes. You can curate competitive bids from local installers without them obtaining any of your contact information unless you choose to work with one further.
With EnergySage's help, the average person can save up to $10,000 on solar purchases and installations.
Readers can also use EnergySage's solar map, which shows the average cost of a home solar panel system by state, along with local solar panel incentives, helping homeowners get the best price for rooftop panels.
Homeowners interested in backup power and smarter energy use can also explore EnergySage for information about home battery storage options, including competitive installation estimates.
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💡Go deep on the latest news and trends shaping the residential solar landscape
Where can I learn more?
Other homeowners have also discovered the benefits solar panels provide, including significant reductions in energy bills and less reliance on the grid.
• In the U.S., one solar homeowner says they haven't paid more than $20 on energy in five years.
• As EnergySage noted, interconnected factors shape solar costs, from roof size to local rates.
• In North Lincolnshire, England, a free solar panel scheme helped lower local energy bills.
For anyone considering solar, battery storage, or a heat pump, the savings can add up quickly.
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