← Residential
Residential
What Size Do I Need?
Estimate your ideal system size from your average monthly electricity bill.
Estimated system size
3 kW
429
Approx. monthly units
~285 sq ft
Approx. roof area needed
This is a rough estimate based on average sunlight and panel efficiency assumptions — actual sizing depends on your roof, shading, and exact consumption pattern. We confirm the precise number during your free site survey.
See the full size comparison
Compare 1 kW to 10 kW+ systems by roof area, daily output, and who they suit best.