Solar panel installation: costs and options
Review when the household uses electricity before sizing rooftop solar. An array that works well at lunchtime may deliver different savings for a household that uses most electricity after dark.
What to include in the scope
Compare panel capacity in kW, inverter capacity, roof layout, shade and export limits. Ask for the installed price before and after applicable incentives. Meter or switchboard work, scaffolding, panel optimisers and roof repairs can change the total.
Australian Government Solar Consumer Guide. Reviewed 12 November 2026. This reference provides planning context.
Build your budget
Adjust the quantities and unit rates. This is a planning tool, not an installer quote.
Use local itemised quotes as the starting rates. Freight, labour availability and minimum call-out charges can change the total by location. Enter GST-inclusive rates where available and list removal, disposal and access separately when excluded.
Ask before you accept a quote.
- Which panels and inverter are specified, what generation assumptions underpin the quote, and who handles grid connection and commissioning?
- Is GST included, and is the price fixed or estimated?
- Are removal, disposal, access and making-good included?
- What changes would trigger extra costs, and who approves them?
- What is the warranty on products and workmanship?
Compare quotes against the same scope
Record itemised inclusions from at least two quotes, then evaluate differences in quality, warranty, timing and exclusions.
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