How much reduction in emissions can I expect from an average sized system?

How much reduction in emissions can I expect from an average sized system?

-       In Australia each kWh of electricity generated from conventional sources creates approximately 1kg of CO2. A 6.6kw solar system will produce around 10,600 kwh a year which will save around 10.6 tonnes of CO2 emissions per year. Taking into account the two years to pay off the embedded energy in the panel, after 25 years a 6.6kw system will have a net saving of around 243 tonnes of CO2.

-       https://www.lgenergy.com.au/faq/buying-a-solar-system/is-solar-power-truly-co2-free