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Build my system
Grid-tied solar system for a house
A grid-tied solar system for a family house that cuts your daytime electricity bill — no battery, powered by the sun with the grid as backup. Built around the Felicity MJS IVBM10048P1G1, with 10 × GK-1-72HTBD-580M.
That's a 10 kW inverter and 10 panels working together.
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How we sized it
This system is built to handle 8.1 kW at once. Appliances like compressors and pumps briefly draw far more than their running power the moment they switch on — so we size for that peak moment, not just the average, which is what keeps the inverter from tripping when a few things start up together. And the 10 kW inverter carries comfortable headroom above that peak.
Day to day, that's about 25.4 kWh of use — the number the Felicity MJS bundle above is built to cover.
This system carries no battery — it's built to work alongside the grid and trim your daytime bill with Felicity MJS, with the grid itself standing in during a cut.
The array works out to 5.6 kWp — 10 panels of the GK-1-72HTBD-580M across roughly 26 m² of roof — assuming the strong, fairly steady sunshine typical of our main markets (about 5.7 peak sun hours a day). Your own roof may do a little better or worse depending on shading and the season.
Frequently asked questions
What can this system power?
2–3 bedrooms, two ACs, a full family household. It's sized to handle up to 8.1 kW at once — enough for whichever appliance switches on hardest.
How long does the backup last?
This system has no battery — it runs alongside the grid during the day, and the grid itself is your backup during a cut. Add a battery any time you want backup power too.
How many solar panels does it need?
10 panels, about 5.6 kWp, filling roughly 26 m² of roof.
Can I expand this system later?
Yes — inverters and panel arrays in this range are modular, so you can add a battery for backup whenever you want one, or extra panels later, starting from this 8.1 kW / 5.6 kWp baseline.