Disclosure

Revenue Model

BillWise is free for all WA households. We generate revenue through a small referral fee paid by installers when a homeowner requests a quote through our platform and proceeds to installation. This fee is paid by the installer, not by you — it does not increase your quote price.

Data Sources

All calculations use publicly available, official data:

• Electricity tariffs: Synergy published rates (A1, Midday Saver, EV Add-On), updated when Synergy announces changes (most recent: 1 July 2025)
• Export rates: DEBS and REBS rates as published by Synergy
• Solar data: Bureau of Meteorology solar irradiance data for Perth metro and WA regions
• Product data: Clean Energy Council (CEC) approved product lists for solar panels and batteries
• STC prices: Clean Energy Regulator STC clearing house spot prices
• Rebates: WA Government Energy Assistance Payment, Dependent Child Rebate, Air Conditioning Rebate rates
• WA Battery Scheme: Synergy published per-kWh rebate rates and eligibility criteria

We check for rate changes quarterly and update our data within 7 days of any announced change. If you notice outdated information, please let us know.

Installer Selection

Installers on the BillWise platform must meet all of the following criteria:

• Current CEC (Clean Energy Council) accreditation for solar design and/or installation
• Valid Australian Business Number (ABN) with active registration
• Minimum $10 million public liability insurance
• Registered to operate in Western Australia
• Compliance with Australian Consumer Law warranty requirements

We verify these credentials during registration and periodically re-check. However, we do not guarantee the quality of any installer's work. We encourage you to check reviews, request references, and compare multiple quotes before making a decision.

Independence

BillWise is an independent platform. We are not affiliated with Synergy, Western Power, Horizon Power, the WA Government, the Clean Energy Council, or any solar/battery manufacturer. Our recommendations are based solely on your inputs and published data — not on commercial relationships.

Accuracy Disclaimer

While we strive for accuracy, all savings estimates, payback calculations, and recommendations are indicative only. Actual results depend on your specific circumstances including:

• Roof orientation, angle, and shading
• Actual electricity usage patterns
• Installer pricing (which varies)
• Weather variability year to year
• Future tariff and rebate changes
• Equipment degradation over time

Always verify rebate eligibility, tariff details, and concession amounts with the relevant authority before making financial decisions. See our Terms of Service for full disclaimer.