EnergyCalc.com.au
Data updated for 2026

How much could you save?

Independent energy calculators for Australian homes

No installer bias. No product pushing. Just the maths — built for every state and territory.

Queensland
30c/kWh5.2h sun

12

Calculators

8

States Covered

2.3yr

Avg Solar Payback

5.0c

Feed-in Rate

☀️

Solar & Battery

2 min

Solar ROI Calculator

Calculate payback period and 25-year ROI for rooftop solar

Calculate
2 min

Battery Payback Calculator

Does adding a battery to solar make financial sense?

Calculate
3 min

Solar + Battery System Builder

Design an optimal solar + battery system and see combined ROI

Calculate
⚡

Electrification

2 min

Heat Pump Hot Water Savings

Calculate savings switching to a heat pump hot water system

Calculate
3 min

Gas Disconnection Calculator

Total savings from going all-electric and ditching gas

Calculate
1 min

Appliance Running Cost Comparator

Compare running costs of gas vs electric appliances

Calculate
🚗

EVs

3 min

EV vs Petrol Total Cost

Compare total cost of ownership: EV vs petrol over 5-10 years

Calculate
2 min

EV Home Charging Cost

Calculate exact cost to charge your EV at home

Calculate
2 min

Solar + EV Synergy Calculator

Combined savings of solar-charged EV vs grid + petrol

Calculate
💰

Bills & Plans

2 min

Electricity Bill Analyser

Break down your bill and find savings opportunities

Calculate
1 min

Rebate Finder

Find all available energy rebates for your state and situation

Calculate
5 min

Whole Home Savings Dashboard

Model total savings from combining multiple energy upgrades

Calculate

On the wrong electricity plan?

The cheapest solar system won't help if you're overpaying for the electricity you still buy from the grid.