The UK government has announced that the energy price cap, which limits how much suppliers can charge for standard electricity and gas bills, will increase by 4% starting 1 October. This means the average dual-fuel household will see their annual energy costs rise from £1,663 to £1,723. The main reason for the increase is the rising cost of gas, which has gone up from 7.33p per kilowatt-hour (kWh) to 7.97p/kWh. Electricity prices have also increased slightly, from 26.11p/kWh to 26.32p/kWh, though the rise is less significant. Meanwhile, the daily electricity standing charge, which is a fixed fee for being connected to the grid, has decreased slightly from 57.19p to 54.83p. For households that rely heavily on gas, such as those with gas boilers, the increase in gas prices will have a more noticeable impact on their bills compared to the small rise in electricity costs. Solar panels can help reduce electricity costs by allowing homeowners to generate their own power and potentially sell any surplus back to the grid. A typical 3.6kW solar system in a three-bedroom home could save around £550 per year, assuming the household uses about 30% of the electricity they generate and sells the rest at an average rate of 12p/kWh. This could help offset the £60 increase in the energy price cap. However, solar panels do not protect households from rising gas prices. Homes that still use gas for heating or cooking will still see an increase in their energy bills. Additionally, even with solar panels, households must still pay the daily electricity standing charge for being connected to the grid, which remains unchanged regardless of how much electricity is generated or used. Solar panels generate less electricity in autumn and winter, when energy demand is typically higher. This means the benefits of solar panels should be considered over a full year rather than on a monthly basis. A solar battery can store excess electricity for use during low-generation periods, but it increases the initial cost of a solar installation. For all-electric homes using heat pumps, solar panels can significantly reduce electricity costs. For example, a semi-detached home with a heat pump saw its annual electricity costs drop from £1,622 to £931 after installing solar panels, saving £691. These households are also less affected by the October price cap increase, as the rise in their electricity costs is expected to be much smaller than the 4% headline increase.