A 10 kW solar system is a common step up from traditional smaller residential arrays. It can suit homes with high electricity consumption, daytime loads, pool equipment, electric heating/cooling, an EV or plans for battery storage.
How many panels are in a 10kW system?
The answer depends on panel wattage. As examples:
| Panel rating | Approximate panels for 10 kW |
|---|---|
| 400 W | 25 panels |
| 440 W | 23 panels (10.12 kW) |
| 475 W | 22 panels (10.45 kW) |
Use the Solar Panel Calculator with your exact panel wattage.
How much electricity can 10kW solar produce?
Production varies by city, roof orientation, tilt, shade, weather and equipment. Using location-based typical daily-output assumptions is more useful than quoting one Australia-wide number.
Estimate 10kW solar output for your location →
Will 10kW eliminate the electricity bill?
Not necessarily. A solar array can generate more energy over a year than a household consumes and still leave grid charges because generation and consumption happen at different times. Supply charges and periods of low generation also remain relevant.
Savings depend strongly on how much solar is used directly versus exported.
Is 10kW too large?
It can be if household demand is low, export is heavily constrained and there is little future load. It can be sensible when there are substantial daytime loads, high annual usage, an EV, battery plans or electrification of appliances.
10kW solar with a battery
A battery can absorb surplus generation that would otherwise be exported, but battery size should be based on the household load profile rather than simply matching a percentage of solar kW.
Use the Battery Size Calculator to estimate storage from usage.
Estimate savings
The Solar Savings Calculator lets you set a 10 kW system, your electricity usage, import rate, feed-in tariff and expected self-consumption. Use your own bill and quote for a more meaningful result.