Drag the sliders. We'll show your combined state + federal rebate, annual bill savings and payback in real time. No email needed.
All inputs are anonymous. Nothing is stored.
SAA-accredited WA installers only. We don't sell your data to anyone outside the 3 matched installers.
Where your discount comes from.
Total spend with vs without a battery, year by year. The crossover point is your payback.
Battery kWh × your network's per-kWh rate, capped at the scheme maximum. Synergy customers cap at $5,000; Horizon customers cap at $7,500 because regional batteries reduce more diesel generation.
The Cheaper Home Batteries Program discounts at point of sale based on system size. The rate declines yearly, so installing earlier means a bigger rebate.
We model how much of your annual bill a battery offsets, based on its size, your solar size and a typical WA consumption pattern. Without solar, savings drop ~45%.