Every piece here comes out of something the product had to get right — a deeming factor, a rebate rule, a distributor's export limit. If we had to work it out to make SunLedger correct, it is worth writing down properly.
Deeming drops to five years for a 2026 install and falls again every January until the scheme ends. Here is what that does to a 6.6 kW quote, with the arithmetic shown rather than described.
The evidence rules that fail claims most often — geotagging, serial capture, timing — and what a clean submission looks like when it lands.
What the 100 / 60 / 15% split does to a 20 kWh system, and why an install dated 30 April is a different quote to one dated 2 May.
Cold-morning voltage, MPPT windows, and the arrangements that pass on paper and fail on the roof.
Australian customers shop on what they hand over. Quoting forwards from a system price is how a proposal ends up showing a negative net cost.
Why three traders quote three numbers for the same batch, and which one is comparable.
What each DNSP allows, when approval is needed, and how the answer changes the system you quote.