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Queensland · Postcode 4551

Caloundra solar & clean energy data

18,973 solar installations registered with the Clean Energy Regulator · ranked top 5% in Queensland · data current as at 2026-04-03

Caloundra
Ranked top 5% for solar uptake in Queensland
#3
in Queensland
18,973
Total solar installs
1,211
Installed last 12 months
-13%
12-month growth
Monthly solar installations · past 12 months
12 months agoThis month
803
Home batteries
4.2%
Of solar homes have battery
Cheaper Home Batteries Program · from Jul 2025
187,802
tonnes CO₂/yr
Estimated annual carbon avoided by Caloundra's 18,973 solar systems combined — equivalent to taking 89,430 cars off the road.
Community total, not per household. Estimated from avg 9kW system size × QLD grid emissions factor.
Compared to neighbouring postcodes
4551
18,973
#3 state
you
4552
3,559
#113 state
Caloundra
4550
1,598
#191 state
Caloundra
4553
4,004
#98 state
Buderim
4554
549
#268 state
Buderim
4555
2,539
#146 state
Buderim
Queensland grid · community impact

Based on last week's Queensland grid mix (avg 810 gCO₂/kWh), Caloundra's 18,973 solar systems typically avoid around 117.57 tonnes of CO₂ every hour during peak generation.

Grid intensity data: Open Electricity (openelectricity.org.au) · 7-day average · updates monthly

Caloundra is one of Queensland's strongest solar communities, ranking 3rd in the state — ahead of 99% of all Queensland postcodes tracked by the Clean Energy Regulator. New installations eased in the past 12 months (1,211 systems, 13% below the previous year), a natural slowdown after earlier periods of stronger uptake.

The combined impact is substantial: Caloundra's solar community avoids an estimated 187,802 tonnes of CO₂ every year — equivalent to taking 89,430 cars off the road or powering around 37,560 average Australian homes with clean electricity. This is estimated using Queensland's average grid emissions intensity of 810 gCO₂/kWh, sourced from OpenElectricity, applied to an average system size of 9kW.

Monthly solar installations · Caloundra
1,211 installs · May – Apr
76
90
94
114
103
86
120
105
108
135
80
100
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