Solar & Battery Calculator

Evaluate the costs and savings of a solar panel and home battery system.

Energy Usage

Annual usage ?

kWh

Current annual bill ?

Daily usage profile ?

00 06 12 18

Tariff Details

Import rate (peak)

p/kWh

Use different off-peak rate ?

Import rate (off-peak)

p/kWh

Off-peak start

Off-peak end

Export rate

p/kWh

Standing charge

p/day

Solar & Battery System

System cost

System Specification

Generation capacity

kWp

Battery capacity

kWh

Charge rate ?

Grid Charging

Allow grid charging ?

Charging strategy

Solar Profile ?

Data from EU PVGIS © European Commission

Financial

Savings interest rate ?

Simulated Day ?

Annual Summary

Long-term Summary

Time period

years

Monthly Breakdown

Month	Solar /kWh	Usage /kWh	Self-use /kWh	Self-use %	Export /kWh	Import (peak) /kWh	Import (off-peak) /kWh	Import (peak) Cost	Import (off-peak) Cost	Export Credit	Standing Charge	Total Cost

Monthly Energy (kWh)

Monthly Cost (£)