How Solar Panels Change Your Electricity Bill
Solar reduces the units you buy when your home uses generation directly. A battery can move some of that energy into the evening, while surplus electricity may earn an export payment.
Your meter sees imports and exports—not the full solar story.
Solar used directly
Generation supplies live household demand first in many standard designs, reducing grid import at that moment.
Solar stored
A battery captures suitable surplus for later use, within its charge power and usable capacity.
Solar exported
Energy not used or stored flows to the grid and may earn payment through an eligible export tariff.
Grid imported
The home still imports when demand exceeds available solar and battery output, and it normally continues to pay a standing charge.
Avoided import is often more valuable than flat-rate export.
If a generated unit replaces a unit you would otherwise buy at a higher import rate, its immediate household value is that avoided rate. If exported, its value is the export tariff instead. Actual tariff prices change, so the comparison must use the customer’s current contract.
Electricity-bill FAQ
Why is my supplier bill not showing solar generation?
The supplier normally records grid import and metered export. Total solar production is usually shown in the inverter or monitoring app.
Will the smart meter run backwards?
No. Approved metering records import and export separately. An old meter behaving incorrectly should be reported.
Can solar eliminate my bill?
It can greatly reduce imported units for some homes, but weather, winter demand, standing charges and periods of high load mean a zero bill should not be promised.
Start with a proper solar assessment.
Tell Mr Solar about your property, electricity use and future plans. We will recommend a system around the building and the way you actually use energy.