Tell us about your household in four quick steps.
Tell us who lives there, the appliances you actually use, the major electrical loads and when those loads normally run.
No floor-area measurements, EV kilometres or appliance-by-appliance usage logs. Your actual bill or smart-meter data will still override these broad planning assumptions when available.
Who lives there, and when are people home?
These two answers set the basic household and daytime-use pattern.
Which everyday appliances do you have?
Approximate counts are enough.
Do you have any major electrical loads?
Heating, cooling, hot water and EV charging matter far more than small appliances.
I have another large or unusual electrical load
These loads vary widely, so the model only applies a broad planning allowance. Measured usage is better where available.
Which selected appliances are commonly used in the morning?
We only ask about appliances where timing can materially change solar self-consumption.
Simple questions, broad assumptions, then your real usage takes priority.
Household
Adults, teenagers and children provide a household-size benchmark without collecting exact ages.
Timing
Weekday occupancy, home-working and morning use help separate daytime demand from later demand.
Large loads
Heating, cooling, hot water, EV charging and unusual loads can materially change a sensible solar or battery starting point.
Better data wins
When you provide bill kWh or smart-meter data in the main calculator, measured usage takes priority over these broad assumptions.