Electrifying the Home: What Long-Term Energy-Cost Modelling Means for Households
Reported long-term electrification savings depend on assumptions. Here is what those projections can—and cannot—tell a household today.
Solar
Long-term energy modelling can help explain why electrification matters, but it cannot tell you exactly what your household will save. National projections combine assumptions about appliance replacement, vehicle uptake, electricity prices, fuel prices and the pace of new infrastructure.
The original version of this article discussed media previews of an Intergenerational Report. Household-dollar estimates from those previews have been removed here because the underlying Treasury analysis and its assumptions were not available for verification at the time of this update.
Turn a national projection into a household comparison
Start with the costs you actually pay: electricity, gas, petrol or diesel, and maintenance. Then compare a realistic replacement option with keeping or replacing the existing appliance. Include the purchase price, installation work and any changes to the electricity plan.
A heat pump may be considered when hot water needs replacing; reverse-cycle heating may be considered when an existing heater is due for retirement. A future EV introduces a separate question about kilometres travelled and when the car will be home to charge. These decisions need not happen at once.
Timing and affordability matter
Replacing a working appliance early has a different cost from selecting an efficient electric model at the end of its life. Likewise, a household able to use solar during the day has a different starting point from one that is rarely home in daylight hours.
Ask for separate estimates for each proposed upgrade. This makes it easier to identify the changes that fit your budget now and the electrical provisions worth making for later.
A practical starting point
Contact Lightning Energy to discuss the options for your property and electricity use.
