A bill alone does not establish how efficient a home is. Tariffs, weather, occupancy and equipment all affect the result.
Use comparable information
Compare usage over similar periods, check estimated readings and review supply charges. A universal dollar benchmark is not useful across different households. Consider an appropriately qualified assessment where building performance needs investigation.
Prioritise cost-effective work
Compare purchase and installation costs with realistic expected savings before replacing equipment. Maintain required ventilation and use qualified people for fixed services. Appliance upgrades do not always repay their cost, especially if use is low. Choose changes supported by your own data and the home's condition.
