What size system might you need?
Explore an initial panel capacity and battery energy allowance. This is a planning tool, not a quotation or a final electrical design.
Use your bill as a starting point.
Enter your monthly electricity use and backup needs to see an indicative capacity. A survey turns these assumptions into a site-specific design.
What the calculation does.
Panel capacity = monthly units ÷ (30 days × equivalent daily sun hours × performance factor). Battery energy = backup watts × hours ÷ 1,000 ÷ usable fraction ÷ delivery efficiency, rounded up to the next 0.5 kWh.
The calculator does not estimate bill savings, export income, utility eligibility, tariffs or project price. Weather, seasonal demand, shading, equipment ratings and connection requirements need a separate assessment. Your entries are used for this calculation and are not saved as a lead; use the survey form if you want the team to contact you.