Solar Proof Apex · Size the perfect solar + battery system from a bill
Solar Proof Apex · beta

Faster feasibility from a power bill.

Drop in a bill or a postcode and Apex models hundreds of solar, battery and electricity-plan scenarios - then ranks the ones that actually pay off by payback, return and lifetime value. In seconds.

< 30sbill to a costed system
100sscenarios ranked
1 clickto a branded report
Apex · system options
SystemSaving/yrPaybackIRR
10kW + 13kWhBEST$3,1804.6 yrs18.9%
6.6kW + 10kWh$2,5405.1 yrs15.2%
13kW + 20kWh$3,7606.2 yrs12.4%
6.6kW solar only$1,4103.8 yrs21.0%
The problem
Guesswork loses deals.

Most quotes start with a rule-of-thumb system size and a flat rate off the top of a bill. But the right system depends on when power is used, what the network charges, and which retail plan wins once solar is exported. Apex prices all of it - so you quote the system that actually pays back, and you can prove it.

How it works

From a bill to the best system, automatically

No manual sizing, no spreadsheets. Apex reads the real usage and prices, then optimises the whole picture - hardware and tariff together.

1. Drop the bill

Upload a power bill or enter a postcode. Apex reads the usage, rates, supply and demand charges - and the customer's details.

2. Apex optimises

It builds an hourly model and searches every sensible solar & battery size against real network tariffs, retail plans and VPP/FCAS.

3. Compare options

See each option ranked by payback, 10-year NPV, IRR or biggest saving - with the cheapest electricity plan for each.

Solution explorer

Hundreds of scenarios, ranked in one view

Every bar is a fully-simulated system. Sort the whole field by net present value, payback or IRR and see instantly where the sweet spot sits - not just a single suggested size.

  • Rank by NPV, payback, IRR or biggest saving
  • Compare solar-only against solar + battery
  • Drill into any option for the full breakdown
Solutions · net present value 312 solutions
$22k$18k$14k$10k$6k $18,900 NPV 10kW + 13kWh · best return
Value stacking

Every dollar the battery earns, broken out

Apex separates the return into the streams a commercial buyer wants to see - self-consumption, export, peak-demand reduction and grid services - month by month across the year.

  • Self-consumption and export valued separately
  • Peak-demand savings from real network charges
  • VPP and FCAS revenue from live market data
Earnings by value stream · year 1
$24k$16k$8k$0 JanFebMarAprMayJunJulAugSepOctNovDec
Solar to load Solar export Peak demand VPP FCAS
Bankable numbers

Cumulative cashflow, all the way to payback

See exactly when the system pays for itself and what it is worth over its life - with power-price escalation and each panel's real degradation baked in, so the return stands up to scrutiny.

  • Payback, NPV and IRR from a full cashflow
  • Power-price escalation applied year on year
  • Premium vs budget panels genuinely differ
Cumulative cashflow · 25 years
break-even Payback4.6 years Yr 0Yr 12Yr 25
AI-powered

Upload a bill. Start modelling.

Apex reads a messy PDF bill and structures it automatically - usage, TOU rates, supply and demand charges - then sanity-checks the numbers against the bill's own totals so a bad read can't slip through.

Magic Bill · reading your PDF
Daily usage24.6 kWh
Peak rate32.1 c/kWh
Supply charge$1.14/day
Demand$14.20/kW
Sell on value

Share a bankable, branded report

Turn the chosen system into a client-ready comparison your customer understands - your logo, the options side by side, and a dedicated electricity-plan page - ready to send.

Shareable report
Report ready to share
solarproof.com.au/r/manufacturing-co
Why it's different

Built for the way Australians actually buy energy

The levers that move a real deal - modelled properly, not averaged away.

Real network tariffs

Distributor demand and TOU charges by postcode, validated against thousands of real bills - so commercial numbers hold up.

Best plan, not just best panel

Compares live retail plans and shows the switch saving - because the cheapest plan often changes once you're exporting solar.

VPP, FCAS & demand

Values battery grid-services and peak-demand shaving from real market data - not a flat guess.

Panel-level realism

Premium vs budget panels genuinely differ - modelled on each panel's warranted degradation and temperature coefficient.

Return, not just savings

Payback, NPV and IRR with power-price escalation - the numbers a serious buyer (and a CFO) actually asks for.

Straight into a project

Turn the chosen system into a full Solar Proof project - customer, system and bill all carried across in one click.

The difference

Retire the spreadsheet

What used to take an afternoon and a lot of assumptions now takes under a minute - and stands up to scrutiny.

The old way

  • Rule-of-thumb sizing and a flat rate off the bill
  • Network demand charges ignored or estimated
  • Every panel modelled the same
  • Hours of rework for each what-if
  • Numbers a sharp customer can pick apart

With Apex

  • Hundreds of sizes optimised hour by hour
  • Real network, retail and market data built in
  • Premium vs budget hardware genuinely differ
  • A new scenario in seconds, not an afternoon
  • A bankable, branded report you can defend
Find out more

Want the detail on Solar Proof Apex?

How the engine models tariffs and dispatch, what the Magic Bill reads from a PDF, how the rankings work, and answers to common questions.

Read the Help & FAQ
Ready when you are

Stop guessing. Start quoting the right system.

Turn a power bill into a costed, compliant recommendation in under a minute.

Start free