Residential solar
Tier-1 panels and inverters sized to your actual consumption data, not a generic package.
Serving NSW, ACT & VICThird-party finance options available
Solar and battery systems, quoted properly the first time.
Sunquest Solar designs, supplies and installs rooftop solar, home batteries and EV charging. Every system is engineered against your real usage data and installed by accredited installers to Australian Standards.
- ~30%
- Government battery discount available via STCs
- Accredited
- SAA-accredited installers for applicable solar and battery work.
- Fixed price
- Written quotes with no hidden extras
What we do
One accountable team from design through to commissioning
Compliance paperwork and aftercare included — you deal with us, not a chain of subcontractors.
Battery storage
Store your daytime solar for evening peaks, with optional backup circuits for outages.
Commercial solar
30kW to 500kW+ rooftop systems with load analysis, ROI modelling and network approvals.
EV chargers
7kW single-phase and 22kW three-phase chargers, solar-aware and load-managed.
Service & repairs
Fault-finding, inverter replacement, isolator and DC cabling remediation, performance checks.
Paperwork handled
STC assignment, distributor pre-approval and metering applications lodged for you.
Batteries in 2026
The federal battery discount is real — and it steps down over time
Under the Australian Government's Cheaper Home Batteries Program, eligible batteries between 5kWh and 100kWh can create small-scale technology certificates (STCs), which we assign as an up-front discount of around 30% on the installed cost. Since 1 May 2026 the STC factor is tiered by capacity and is reviewed every six months, so the discount reduces over time.
- 0–14 kWh of usable capacity: STC factor applied at 100%
- Above 14 up to 28 kWh: applied at 60%
- Above 28 up to 50 kWh: applied at 15%
Process
How a Sunquest install runs
- 01
Assessment
We review 12 months of interval data, your roof, shading, switchboard and tariff before proposing anything.
- 02
Written proposal
Full system price, equipment makes and models, certificate discount, warranties and timeframe — in writing.
- 03
Approvals & install
We lodge distributor pre-approval and metering paperwork. Install is completed by accredited installers.
- 04
Commissioning & aftercare
Testing, certificates of compliance, monitoring set-up, and a support line for the life of the system.
No door-knocking, no cold-call closing, no “today only” pricing. You get a cooling-off period on any sales agreement where the law provides one, and your rights under the Australian Consumer Law apply on top of every manufacturer warranty. Read more on our consumer rights page.
Finance
Third-Party Finance Options Available
Third-party finance options may be available to eligible customers through independent finance providers.
Finance is optional and subject to application, eligibility, credit assessment and approval by the relevant finance provider.
Sunquest Energy Pty Ltd is not the credit provider and does not determine finance approval, interest rates, repayments, fees or other credit terms.
Customers may choose to pay the outright purchase price or independently arrange their own finance.
No obligation
Ready for a straight answer on solar and batteries?
Book a free site assessment. We'll model your usage, show you the certificate discount you qualify for, and give you a fixed written quote with no obligation.
Request a quote