Free Solar Quote Sunshine Coast
Design your perfect solar system in minutes. Enter your address to see your roof's solar potential and get an instant estimate.
What Happens After You Request a Quote
- 1
Instant online estimate. The calculator reads your roof from satellite imagery and returns an indicative system size, generation figure and price range in about two minutes.
- 2
A real installer calls you. Dan or one of the team follows up — not a call centre and not a lead broker. We ask for a recent power bill so the design is sized on your actual usage.
- 3
Free on-site assessment. We inspect the roof, switchboard and meter, confirm there are no shading or structural surprises, and check what the Energex connection allows at your address.
- 4
Fixed written quote. You get a panel layout, inverter and battery options, an annual generation estimate and a fixed price with the federal STC rebate already deducted. It stays valid for 30 days.
What Your Solar Quote Includes
- Panel make, model and count
- Inverter make, model and warranty term
- Roof layout and string design
- Estimated annual kWh generation
- Federal STC rebate already applied
- Battery option with and without the federal battery rebate
- Estimated payback period in years
- 10-year Keystones workmanship warranty
Common Questions About Solar Quotes
Is the quote really free, and is there any obligation?
Yes, and no. The online estimate and the on-site assessment are both free, and there is no obligation to proceed. We do not sell or share your details with other installers.
How much does solar cost on the Sunshine Coast?
After the federal STC rebate, a quality 6.6 kW system on a standard single-storey tile or tin roof typically lands between $5,000 and $7,000 installed, and a 10 kW system between $8,000 and $11,000. Tilt frames, two-storey access, switchboard upgrades and premium inverters move the number.
How long is the wait from quote to installation?
Two to four weeks is typical, most of which is the Energex connection approval. The physical install is one to two days for a residential system.
Do you quote for battery retrofits on an existing system?
Yes. Tell us your current inverter brand and model when we call. Some inverters accept a DC-coupled battery directly; others need an AC-coupled battery alongside them, and we will quote whichever is the better value at your site.
Prefer to Talk to Someone?
Call 0423 157 290 Monday to Friday, 9am to 5pm, or email sales@keystonesenergy.com.au. Keystones Energy is a Clean Energy Council accredited installer based at Cooroibah, servicing the Sunshine Coast and Gympie region since 2015.
Not sure which system suits you? Compare residential solar, commercial solar and off-grid systems, or read the full solar FAQ.