Question 1

How does the calculator work?

Accepted Answer

You enter your monthly electricity bill and your state. From there, we estimate your usage, calculate the solar system size that matches it, and project your savings over 25 years — using real local sun hours and government tariff data, not generic averages.

Question 2

Where does the data come from?

Accepted Answer

We use AEMO (Australian Energy Market Operator) rates and your state's current feed-in tariff and rebate figures. The exact rate, sun hours, and rebate numbers used for each state are listed transparently — nothing's hidden in a black box.

Question 3

How accurate are the savings numbers?

Accepted Answer

As accurate as a bill-based estimate can be. We factor in 5% annual electricity price inflation, 0.5% annual panel degradation, and 70% self-consumption — these are industry-standard assumptions, and we show them so you can judge for yourself. Your actual savings will vary based on your specific roof, usage patterns, and chosen installer.

Question 4

What does the AI advisor do?

Accepted Answer

Once you get your results, you can chat with an AI advisor that already knows your specific numbers — your bill, your system size, your projected payback period. Ask it things like "why is my payback 6 years and not 4?" or "what if I add a pool?" and get an answer based on your actual calculation, not a generic FAQ.

Question 5

Do I need to sign up to try it?

Accepted Answer

No. The free tier gives you 3 calculations and 3 AI questions per session with no sign-up required. You only need an account if you want to save calculations or go Pro.

Question 6

What rebates are included?

Accepted Answer

We include your state's current solar rebate (STCs-based incentive) in the savings calculation, alongside your state's feed-in tariff for excess power sent back to the grid.

Question 7

What's the difference between Free and Pro?

Accepted Answer

Free gives you 3 calculations and 3 AI questions per session, with ads. Pro ($9/month or $79/year) gives unlimited calculations and AI questions, PDF export, and no ads.

Question 8

Is my data safe?

Accepted Answer

We only use your bill amount and location to run the calculation — we don't sell your data, and you can delete your account and data at any time from your account page.

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