Home Electrification Calculator: What Going All-Electric Could Change in Your Running Costs, and the Order to Do It

Built and checked by our licensed electricians: November 2026. Prices in the maths checked 13 November 2026.

Answer eight quick questions about your home (hot water, cooking, heating, gas spend, car, solar and switchboard) and see an estimate of how your yearly running costs could change if you went all-electric, how much more solar that typically needs, and the order to do it in. The result shows on screen straight away; no details needed.

The electrification calculator

How the estimate works

It adds up what ends (your gas spend, including the bottle rental or supply charge, and petrol if you are swapping to an EV) and takes away what the new electric appliances cost to run. Each appliance uses a typical daily energy figure. Each kWh is priced by where it comes from: solar you use yourself is valued at the feed-in credit you give up, and grid power at the 2026-27 price cap for the Essential Energy area, which is the cautious choice. The full list of assumptions sits under every result.

It is a guide to help you plan, not a quote and not a promise of savings. It does not include the cost of the new equipment or any rebate; those come from a proper design.

What to read next

• Full home electrification in the Northern Rivers: the order to do it
• Smart electric hot water or a heat pump on solar? The honest comparison
• Getting off gas: induction cooktop switchboard checker
• Solar and battery price calculator and battery rebate calculator
• EV charging calculator and battery runtime calculator
• All our free calculators

Questions we get asked

How accurate is the electrification calculator?

It is an estimate, not a quote or a promise. It uses typical daily energy figures for each electric appliance, the 2026-27 electricity price cap for the Essential Energy area, the IPART feed-in benchmark for solar you use yourself, and the gas spend you tell it. Your own appliances, habits, electricity plan and roof decide the real figure, which is why every assumption is printed under the result.

Why does it use the price cap for electricity?

The Default Market Offer cap (35.01 c/kWh for the Essential Energy area in 2026-27, set by the Australian Energy Regulator) is the most a standing offer can charge, so it is the cautious choice: if your plan is cheaper, electric appliances cost you less to run than the estimate shows.

Why does solar make such a difference?

Solar you use yourself costs you only the feed-in credit you would otherwise have earned, which the IPART benchmark puts at 3.4 to 6.5 c/kWh in 2026-27, against roughly 35 c/kWh from the grid. Daytime loads like a timed hot water system run mostly on solar; evening loads like cooking and heating need a battery to do the same.

Does it count the gas supply charge or bottle rental?

Yes, if you include it in the yearly gas spend you enter. Once the last gas appliance is gone, that standing cost ends completely, which is the one saving every household gets. The calculator assumes you replace every gas appliance you told it about.

Does it include the cost of the new appliances?

No. It estimates the change in yearly running costs only. The upfront cost depends on your switchboard, your roof and the appliances you choose; the federal solar and battery rebates come off at the point of sale, and a firm price follows a look at your bills and a visit to your home.

Why does the order matter?

Every big electric appliance needs its own protected circuit, so the switchboard is planned once, first. Solar sized for the electric loads comes next, then the battery, then each gas appliance as it comes due, and the gas comes off last. Our full home electrification guide explains each step.