QUICK ENERGY ESTIMATE
Solar & battery calculator.
Adjust solar and battery sizes to see an annual reference estimate and how the benefit breaks down.
Your setup
Have your own tariff and usage figures? Use the detailed energy model.
Potential annual benefit
Modelled equipment value, including trading.
- Solar and battery operation
- £1,108
- Additional smart optimisation
- £826
- Additional modelled trading
- £764
The modelled energy benefit for the whole setup, before capital, finance and service fees. Your site’s figures depend on its tariff, equipment and eligibility.
Components are rounded separately and may differ from the total by £1.
What is included in this result?
The reference total combines solar and battery operation, the additional effect of smart scheduling and additional modelled trading. These are components of one total and must not be added to the separate detailed energy model.
Trading depends on access to an eligible programme and appropriate agreements. Equipment, installation, financing and service charges must be assessed before deciding whether a project makes financial sense.
How are values between system sizes calculated?
Values between reference system sizes are linearly interpolated. Above 12 kWp, the home calculation continues the 10–12 kWp interval up to 20 kWp. This is extrapolation of the reference curve, not additional simulated evidence.
Where do the figures come from?
The figures come from a September 2026 comparison dataset. Household scenarios use representative demand and tariff assumptions. Commercial reference demand scales with solar size and the selected use tier.
The dataset shows illustrative scenarios. A commercial proposal needs verified site assumptions and full costs.
YOUR NEXT STEP
Turn the example into a site assessment.
Share your actual tariff, electricity use and equipment so the options can be assessed for your circumstances.