Rainwater Harvesting Tanks, Bore Filtration & Greywater in Brisbane

For a typical family home (3 kWp solar + LiFePO4 battery) in Brisbane (Queensland), combined upfront STCs and state rebates under Federal STC Solar Rebate + Cheaper Home Batteries Program + State VPP Battery Incentives (NSW PDRS, Solar Victoria, QLD & WA) are estimated at A$1,874 (43%), reducing net outlay from A$4,359 to A$2,485.

With a local solar yield of 1690 kWh/kWp/year (+4.3% vs the Australian average of 1620 kWh/kWp), a 3 kWp system in Brisbane produces ~5.070 kWh/year and prevents 3.296 kg of CO₂ emissions.

In Brisbane (CEC Zone 3 (Subtropical Brisbane)), AS/NZS 4777.2 inverter connection, dynamic export limits, and VPP battery registration are managed by Energex (South East Queensland).

By storing midday solar in a LiFePO4 battery to avoid 45c+/kWh evening peak tariffs and earning AEMO VPP credits, households in Brisbane save ~A$729/year with a payback of ~3.4 years.