Energy Independence with Home Batteries - CleanTechnica

The Australian federal government’s Cheaper Home Battery program has seen significant success, with over 40,000 home battery installations in just eight weeks, enabling Australians to harness free solar energy effectively. A case study of Gary, a homeowner who installed two Tesla Powerwall 2 batteries (each 13.5 kWh) connected to a 10-kW inverter alongside a 15 kW solar array, illustrates the practical benefits. Gary initially paid full price for the first battery and received a government subsidy for the second, which helped fund the solar expansion. His annual electricity and petrol costs, previously around AU$4,200 and AU$4,000 respectively, have been substantially reduced by powering his household and two Teslas (Model Y and Model 3) with solar energy stored in the batteries. Gary’s system yields savings exceeding AU$14,000 per year when accounting for fuel and maintenance reductions from electric vehicles and lower electricity bills, enabling the AU$40,000 investment in solar and