Solar installers Coolum Beach
Beach shacks, hillside homes and the shadow of Mount Coolum: a suburb where the shade model earns its keep.
- 30-year workmanship
- NETCC approved
- QLD #88205-licensed
- Postcode
- 4573
- Council
- Sunshine Coast Council
- Network
- Energex
- From our Ormeau depot
- 175 km · ~150 min
- Wind region
- Region B, non-cyclonic
- Sun-hours per day
- 5.3 avg
- STC zone
- Zone 3 (1.382)
What makes Coolum Beach different
Coolum Beach is a laid-back surf town midway up the Sunshine Coast, with 1970s beach houses on the flat, newer homes climbing the hills behind, and Mount Coolum standing 208 m tall at the southern end. Postcode 4573 also covers Yaroomba, Mount Coolum and Peregian Springs. Salt spray, hillside orientation and the mountain's afternoon shadow on a few streets are the three things we design around.
- 7,763 rooftop systems in postcode 4573, with 558 added in the year to July 2026
- New 4573 systems averaged 11.5 kW last year
- 645 batteries installed across 4573 in the 12 months to July 2026
- Tin beach-house roofs are a half-day install with no tile breakage risk
- We model the Mount Coolum shadow street by street rather than assuming an average
What postcode 4573 has already put on its roofs
Every accredited solar and battery install in Australia is registered with the Clean Energy Regulator by postcode. These are the numbers for 4573, which covers Coolum Beach, along with Peregian Springs.
Source: Clean Energy Regulator, postcode data for small-scale installations, data as at 31/07/2026. Counts are for the whole postcode, and the last 12 months will still rise because installers have a year to register certificates.
Coolum Beach sunshine through the year
Twenty years of satellite-measured sunlight at the Coolum Beach centroid, turned into the kilowatt-hours a 6.6 kW system would produce each month.
- Best month
- Nov
- Lowest month
- Jun
- Winter low as a share of summer peak
- 44%
- Annual output, 6.6 kW
- 10,853 kWh
- Hottest month, average max
- 35°C
Source: NASA POWER, MERRA-2 / CERES SYN1deg climatology, 20-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2020). Output assumes a north-facing array and an 85% performance ratio.
Solar savings estimate for Coolum Beach
Pre-loaded with Coolum Beach's own sun-hours, Energex tariffs and a typical local home. Slide the bill to match yours.
Preset for a typical Coolum Beach home: Beach house, split-system air, two adults. Adjust to match yours.
Coolum's sea breeze keeps cooling loads modest, so a 6.6 kW system covers most homes. Larger hillside homes with pools go to 10 kW.
- Share of your bill covered
- 63%
- Indicative installed price
- $6,500
- Used at home / exported
- 3,798 / 7,054 kWh
- STC rebate (Zone 3)
- about 45 STCs, $1,755
Estimate only. Uses NASA POWER 20-year average sun-hours for Coolum Beach, Energex tariffs from the 2026 Default Market Offer, a 85% performance ratio and 2026 installed prices after the STC rebate. STC value assumes $39 per certificate and a 5-year deeming period. Your roof, shading and quote will change the numbers.
Open the full calculator with 4573 filled inCan you export solar in Coolum Beach?
Energex publishes how much solar each street transformer can still absorb. See the Coolum Beach snapshot and check your own address in about ten seconds.
What we find on Coolum Beach roofs
Old Coolum roofs are tin and quick to fit, with room for 6.6 to 10 kW on a north or west plane. Hillside homes above the town often face east to the ocean, so we use an east-west split. Streets in Yaroomba directly east of Mount Coolum lose the last hour or two of afternoon sun, and we model that exactly rather than guessing. Marine-grade mounting is standard within 1 km of the beach.
- Housing era
- 1970s to 1980s beach houses, 1990s to 2010s hillside homes
- Roof material
- Tin and Colorbond mostly, some concrete tile
- Roof pitch
- Low to moderate, 10 to 22 degrees
- Typical block
- 500 to 700 m2, sloping on the hills
- Home type
- Detached homes, duplexes, low-rise units
- Shading
- Low on the flat, moderate on the hills, mountain shadow at Yaroomba
Panel counts at 440 W per panel, about 2 m² each. We confirm the real count from satellite imagery before quoting.
| System | Panels | Roof area |
|---|---|---|
| 6.6 kW | 15 | about 30 m² |
| 10 kW | 23 | about 46 m² |
| 13 kW | 30 | about 60 m² |
Beach house, split-system air, two adults: 6.6 kW, self-consumption around 35%.
What applies to a Coolum Beach install
Council and network
Coolum Beach has no heritage overlays affecting houses, and the Sunshine Coast Planning Scheme treats panels on existing dwellings as accepted development. Beachfront blocks sit in the coastal hazard overlay, which affects inverter and battery height. Mount Coolum and the hillside streets are in the bushfire overlay, which shapes cable routing. Energex is the network with a 5 kW single-phase export cap and dynamic connections available. Duplexes and units need body corporate consent.
STC rebate in Coolum Beach
Coolum Beach is in STC Zone 3 (rating 1.382). With a 5-year deeming period, a 6.6 kW system earns about 45 certificates, roughly $1,755 at $39 each, and a 10 kW system about 69, roughly $2,691. We claim it for you and take it off the quote.
Battery discount
The federal Cheaper Home Batteries Program cuts roughly 30 percent off the installed cost of a home battery, stepping down each year to 2030. Postcode 4573 added 645 batteries in the year to July 2026. We size the battery to your evening use, not the biggest unit on the truck.
Asked by Coolum Beach homeowners
Does Mount Coolum shade my roof?
Only if you are in Yaroomba or the southern end of Coolum directly east of the mountain, and only in the late afternoon. We run the shade model for your exact address before quoting so you get a real number.
Is a tin beach-house roof strong enough for panels?
Yes. Panels add about 12 kg per square metre, well within the design load of a tin roof on timber battens. We check the batten spacing and fix into the rafters with tin-roof clamps.
What about the salt at Coolum?
Within a kilometre of the surf we use marine-grade anodised rail, stainless fasteners and salt-mist certified panels as standard. That is what stops corrosion, and it is covered by our 30-year workmanship warranty.
Suburbs we cover near Coolum Beach
Coolum Beach is 175 km from our Ormeau depot, about 150 minutes by road, so our own crew does the install.
30 year workmanship warranty
30 year panel warranty
10 year inverter warranty
10 year battery warranty
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