A better retailer
Your rates and daily supply charge, compared with the plans on the market.
Your bill vs solar & battery
Let's compare your electricity bill with solar and a battery.
If nothing changes, over 10 years
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Enter your bill above · 5% annual energy price increases. A scenario to explore, not a forecast.
- With no price increases
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- Extra from price rises
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Enter your bill to draw your ten years.
This uses an average price rise, not your tariff. Your bill shows the real rates, the time windows and the supply charge. Send it and your free 
strategy is built from those. Usage stays the same here. Year 1 uses today’s rates; increases begin in Year 2.
See the assumptions and yearly numbers
The estimate annualises your bill (× 4) and compounds the selected rates for ten years. Known supply charges are separated before projection. Savings, export income and installed system costs are not included.
How the bill comes down
Three Ways Off That 10-Year Bill.
The number above is the cost of leaving the bill as it is. A better plan, solar, or a battery can change it. We check all three from one bill, in a free report.
Solar, sized right
Whether more panels suit your roof and your usage, or none at all.
A battery, if it fits
Sized to what you use at night. If it does not stack up, we say so.
We do the report. A local installer prices solar and a battery. It's free.
Federal & state programs
Solar & Battery Rebates You May Qualify For.
Pick your postcode and system size. We work out the federal and state discounts for you.
This is for
Interested in
Solar size
Battery size (usable kWh)
Enter your postcode. Solar certificates depend on your exact zone.
Your installer’s rate may differ. Your report confirms what applies to you.
From the bill
From One Bill To The Right Decision.
- 0110-year cost
What this bill adds up to over ten years, with price rises.
- 02Energy analysis
Your rates, supply charge and usage, read from the bill.
- 03Estimated recommendation
A better plan, solar size and battery size, estimated from your bill.
- 04Get quotes
Up to three installers price the same spec, only when you ask.
- 05Compare
Quotes side by side in your dashboard, with the pros, cons and questions to ask.
Compare my quotes
One report. A more informed decision.
The right combination.
For your
Your report guides the next step. We help you understand how solar, a battery and an electricity plan could work together around your energy use. Sometimes a better plan is the place to start.
Solar panels
Capture it.
Panels turn daylight into power for your home. Your report shows how much of your use happens while the sun is up.
Battery storage
Keep it for later.
A battery stores spare solar for the evening and overnight. We size it from how much you use after dark.
Retailer & grid
Keep the connection working for you.
Your retailer plan sets your usage rates, solar buy-back and the daily supply charge that pays for your grid connection. The right plan fits how your solar and battery run.
Then the strategy
Your report becomes your quote brief.
Our strategy starts from your bill, not a sales pitch. It uses three things:
- Average daily useWhat your home uses on a typical day.
- Night useWhat you use after the sun goes down.
- Battery sized to the supply chargeSo spare exports can earn credit toward the daily supply charge, which is still billed.
Then get quotes. Use your report to get quotes, and compare them side by side in your dashboard.
Illustrative equipment and grid connection. Suitability, compatibility and quote availability depend on your property, usage and location. Supply charges remain payable while connected; eligible credits may help offset them.
The plan matters as much as the hardware
A Great Battery.
A Plan That Does It Justice.
AGL, Amber and other providers offer different ways to buy and sell energy. A higher buy-back rate is only part of the picture. What matters is what you pay overall—and the conditions that come with it.
Provider names are examples, not endorsements or a claim of partnership. Offers and equipment eligibility need checking.
- What you pay
- Usage rates, daily supply charges, demand charges and fees where applicable.
- What you earn
- Solar export credits, eligible battery rewards and the limits or conditions attached.
- What you agree to
- Compatible equipment, battery control, backup reserve and any exit conditions.
Planned · ongoing plan checksEnergy plans change.
Energy plans change.
Your dashboard should keep up.
Our next step is consented usage monitoring: recheck suitable offers when your usage or plan prices change, explain the difference and bring a better option back to your dashboard. You approve any switch.
- Your usageShared with your consent
- Fresh plan checksCosts, credits and eligibility
- A clearer next stepReview it in your dashboard
Live monitoring and automatic plan comparisons are not connected yet. Today, start with your bill report, battery scenarios and quote comparisons.
A little more clarity
Good questions.
Straight answers.
Is this a prediction of my bills?
No. This is a scenario based on one bill and the annual price increase you select. Usage stays the same, and increases begin in Year 2. Seasonal changes, future savings, export income and equipment costs are not predicted. The no-increase baseline helps you compare.
Can a battery cover my daily supply charge?
The right battery, inverter and compatible energy plan may earn credits that offset your remaining electricity costs—including daily supply charges. Supply charges remain payable while connected. Your dashboard lets you explore the assumptions; the equipment, available energy and provider rules still need checking.
What happens in my dashboard?
Your energy report is the starting point. Bring in your estimate, upload a bill, download your report, explore battery scenarios and compare quotes in one place. You can request an email link to return to your estimate.
Will keep checking my energy plan?
That is the next step we’re building towards. With your consent, we intend to use your actual usage to recheck suitable plans when prices or your usage change—including supply charges, export credits and VPP conditions. Live monitoring and automatic plan comparisons are not connected yet. You would review the recommendation and approve any switch.
Do you sell my details?
Nothing goes to an installer until you ask for a quote. Then they price the spec from your bill, not a shared contact. Your estimate and report stay with you until then.
Is it free—and how does earn money?
Your estimate and energy report are free. may receive a referral or affiliate commission if you choose an offer through us. We disclose that relationship with the offer. We can help arrange a professional quote where service coverage is available; there is no obligation to buy.
helps Australian homes and businesses make informed energy decisions. Complex commercial tariffs, demand charges and bills in credit need a detailed review. A lower bill may come from solar, a battery, a different plan, changing usage—or waiting.
Stupendefi Pty Ltd trading as · ABN 85 657 309 558