Guides
Solar battery guides for Australian homes
Longer explainers that sit beside the free calculator and cost guide. Start here if you want the policy and sizing context before you run numbers.
Cheaper Home Batteries Program explained
A plain-English guide to the federal battery discount: how the STC rebate is calculated, what it usually knocks off installed cost, and why timing still matters.
Updated July 2026
What size solar battery do I need?
Most homes land between about 8 and 13.5 kWh usable. This guide explains how evening load, solar size and backup goals change that answer - and when 20 kWh is overkill.
Updated July 2026
What actually changes solar battery payback
Payback is not a single national number. Import rates, feed-in tariffs, how much solar you already export, and net cost after rebates move the result more than brand slogans.
Updated July 2026
State battery rebates compared
The federal program is national. State support is not. This guide summarises what still changes your net cost by jurisdiction in 2026.
Updated July 2026