Get all your old lights replace with LEDs for $33! Find out more at: https://www.energy.nsw.gov.au/households/rebates-grants-and-schemes/household-energy-saving-upgrades/upgrade-your-household-lighting
Replace your current electric water heater with a super energy efficient heat pump for $399 for 300L (save 70% on electricity costs). Contact Chromagen: https://chromagen.com.au/
Compare your current energy plan at: https://www.service.nsw.gov.au/transaction/compare-energy-plans-with-energy-made-easy
Install solar panels: https://www.solarchoice.net.au
Complete a Property Health Check every 6 months