Then divide the kw output by your panel s efficiency to get the estimated number of solar panels you ll need for your system.
What size solar system do i need for my house.
The average australian household consumes 18kwh of electricity each day.
System size based on daylight electricity use.
Calculate the size of your solar system.
To calculate the size of your solar photovoltaic system take your daily kwh energy requirement and divide by your peak sun hours to get the kw output you need.
How many solar panels do i need to power my house.
So for example to cover the energy needs of a typical home in california you would need a 4kw solar power system to generate 6 522 kwhs of electricity.
Total number of solar panels.
The typical homeowner will need 28 34 solar panels to cover 100 of their energy usage dependent on location and roof size.
For example a 5kw system will output around 20 kwh a day and may save you up to around 500 every quarterly power bill.
If we use a house in adelaide as an example you would need a 5kw solar system to generate this amount of power.
Roughly sizing up a solar system is easy.
To figure out how to size your solar system take your daily kwh energy requirement and divide it by your peak sun hours to get the kw output.
The numbers vary mostly because of the climate of each region.
We listed the solar system size that would be needed in each region to offset that particular region s average electricity usage.
To get these numbers we used high and low panel production ratios to calculate how many solar panels are needed on average.