Commercial solar installation on the Sunshine Coast
For a Sunshine Coast business, the key comparison is between when electricity is generated and when the site needs it. Seasonal demand and changing operating hours deserve more attention than a single average monthly bill.
Vitalic delivers commercial and industrial energy systems Australia-wide, bringing solar, battery storage and control into one site assessment.
Sunshine Coast at a glance
- Network
- Energex
- STC zone
- Zone 3 (1.382)
- Solar exposure
- 19 MJ/m² a day
- Output per kW
- ~1,386 kWh a year*
- Noon sun height
- 40° June · 87° December
- Strongest month
- December
Compare busy periods with quiet periods
Use a full year of interval data where available. For a property with seasonal occupancy, trading or production, separate those patterns before estimating self-consumption. An annual total can hide both daytime export during quiet weeks and expensive grid imports during busy evenings. Build the comparison around those periods rather than a generic daily curve.
Assess controllable work before adding storage
Where operations permit it, examine whether water heating, pumping or charging can move into solar hours. Record minimum run times, process limits and recovery requirements with the operator. Compare the resulting load profile with a battery option, including conversion losses and the energy needed after sunset. Neither technology should be assumed to solve every peak.
Confirm the site-specific connection
The Sunshine Coast is part of Energex’s network area. Check export and connection requirements for the actual address and proposed system. For a business spread across multiple buildings or properties, keep the meters and bills separate in the assessment: a surplus at one connection cannot simply be treated as supply to another.
A region already full of rooftop solar
Sunshine Coast Council reports 360 MW of rooftop solar installed in the region since 2008, on more than half of all dwellings, and has run its own 15 MW solar farm at Valdora since July 2017. Energex reports reverse power flow at 74 per cent of its zone substations on at least one day in 2024–25, and says the southern Sunshine Coast is growing strongly. On a network this full at midday, plan for limited export and value the system on the energy the site uses itself.
The wettest of the south-east coast
Sunshine Coast Airport averages 1,499.0 mm of rain a year over 104.7 rain days, with 3pm humidity of 66% (1994 to 2010), against Brisbane city’s 1,055.9 mm, 81.9 days and 52%. February is the wettest month at 214.8 mm on average, so size against the wet months as well as the annual figure. In Maroochydore City Centre, a Priority Development Area, check the development scheme as well as the planning scheme, because the scheme prevails where they differ and development must not intrude into the airport’s obstacle limitation surface.
Commercial solar on the Sunshine Coast: common questions
What is the government rebate on a 100 kW solar system on the Sunshine Coast?
The federal incentive is small-scale technology certificates (STCs), which installers usually take as an upfront discount. For the example postcode 4558 (Maroochydore, Zone 3), a new 100 kW system installed in 2026 creates 691 STCs (100 kW × 1.382 × 5 years). At the Clean Energy Regulator’s reported spot price of $39.85 that is about $27,500. This is a postcode example, not a site eligibility check. Confirm your own site’s postcode and eligibility. The figure for a 100 kW system falls each year as the scheme approaches its 2030 end.
Who is the electricity distributor on the Sunshine Coast?
Energex, which the Australian Energy Regulator lists for Brisbane, the Gold Coast, the Sunshine Coast and surrounds.
What STC zone is the Sunshine Coast in?
Sunshine Coast postcodes (4550 to 4575) fall within 4498 to 4719, which is Zone 3 under the 2019 zone-ratings instrument, with a rating of 1.382.
Can solar at one of our sites supply another?
Not directly. Each connection is metered and billed separately, so a surplus at one site is exported at that site’s export rate. Assess each site against its own load and tariff.
Is there a Queensland rebate for business solar on the Sunshine Coast?
Not in October 2026. The Queensland Government’s QBEST rebates are no longer offered, and no state program funds solar or batteries for a general commercial site. Sector programs are open: free ecoBiz coaching, a subsidised energy benchmark for manufacturers, and QRIDA’s Sustainability Loan for primary producers, which names solar. The federal certificates still apply.
Can a Sunshine Coast business claim certificates on a system larger than 100 kW?
From 1 October 2026, new solar systems above 100 kW and up to 1 MW can create small-scale technology certificates (STCs), with a fixed deeming period to 2030. The Clean Energy Regulator says applications for these systems open in mid to late November 2026, and evidence of network connection approval is required. Only capacity installed on or after 1 October 2026 is eligible, so an extension earns certificates on the added panels only.
Sources
- Australian Energy Regulator — who is my distributor
- Energex 2026–27 pricing proposal overview (AER)
- Energex — Distribution Annual Planning Report 2025
- Sunshine Coast Council — Sunshine Coast Solar Farm
- Economic Development Queensland — Maroochydore City Centre development scheme
- Business Queensland — programs to help businesses save energy
- Business Queensland — Sustainability Manufacturing Benchmark Program
- QRIDA — Sustainability Loan
- Solar (PV) zone ratings instrument 2019 (F2019L01583)
- Clean Energy Regulator — mid-scale solar (100 kW to 1 MW)
- Bureau of Meteorology — Brisbane station 040913 climate statistics
- Bureau of Meteorology — Sunshine Coast Airport station 040861 climate statistics
- PVGIS 5.3, EU Joint Research Centre
- Clean Energy Regulator — calculate STC entitlements (deeming periods)
- Clean Energy Regulator — quarterly carbon market report, June quarter 2026 (STC prices)
- Australia Post — Maroochydore postcode
Confirm requirements for your specific connection with the distributor named on your bill.
Compare the options for your site
Explore commercial solar, battery storage, intelligent control and EV charging, or read how they work together. For a starting estimate from your annual electricity use, try the solar sizing calculator.
Nearby service areas
* Illustrative. Output is modelled with PVGIS 5.3, EU Joint Research Centre for 1 kW laid flat, 14% system losses and 2005–2023 weather; a real system depends on its roof, shading and equipment. Panels tilted 28° to the north would give the most generation, about 10% more (1,525 kWh per kW), but need frames that usually cost more than the extra output earns. Solar exposure is the Bureau of Meteorology’s long-term station mean. The 100 kW certificate example uses postcode 4558, its statutory zone rating and 5 deeming years, with the count rounded down. The displayed value is floored to $100 at the Clean Energy Regulator’s reported spot price; installers usually take certificates as an upfront discount. A site’s postcode and eligibility require confirmation.