How solar power works
Whenever the sun shines, even in overcast weather, the solar panels will generate electricity, this electricity is moved to the invertor to be converter to AC 240 power to be used in the home. If you system produces more power than you consume on the day the power is then fed back to the main power grid. A credit is then applied to your account. Of an evening the household draws power from the main grid and is metered at the standard rate unless a solar battery is installed to capture the surplus power for evening use. The life expectancy of solar systems is 25 years.