Is your solar actually paying off?
Three numbers from your solar app. About a minute. You'll see how much your panels give away to the grid each year — in pounds.
In your solar or inverter app look for “Exported”, “Feed-in” or “Grid export” for the last 12 months. Your export payment statement shows it too.
Don't know? Make a rough guess from your panel size
We assume about 850 kWh a year per kWp and that roughly half of it is exported — a common pattern for homes without a battery. Your real app number is always better.
Unit rate on your bill. Pre-filled with the Ofgem price cap for Oct–Dec 2026 (Direct Debit).
Your Smart Export Guarantee (SEG) rate. Not sure? Pick the closest.
a year your panels give away — the difference between what you're paid for exported power and what the same power costs you to buy back.
What usually closes the gap
This is the most you could gain by using that power at home instead of exporting it. How much of it a home can realistically keep depends on what you have and when you're in — that's what we work out with you, for free.
Want your real number?
Send us your result. Tomas will look at your setup and reply with what your home could realistically keep — and what it would take. No obligation.