Gridly
QLD 4161 · Redland
Solar Panel Installation in Alexandra Hills, QLD
Find a vetted solar installer in Alexandra Hills. Compare quotes, check local solar data, and get a system designed for your roof.
Get Free Solar QuotesSolar Snapshot for Alexandra Hills
Key data for sizing a solar system in Alexandra Hills, QLD 4161.
16,472
Population
5.2/day
Peak Sun Hours
10,021
Est. Annual Output (6.6 kW)
$1,378
Est. Annual Savings
3.5 yrs
Est. Payback (6.6 kW)
$3,315
STC Rebate (6.6 kW)
Zone 1
Dwelling Mix in Alexandra Hills
Breakdown of dwelling types based on census data — relevant for understanding rooftop solar potential.
Houses
93%
5,466 dwellings
Townhouses
5%
281 dwellings
Apartments
2%
112 dwellings
Alexandra Hills is predominantly freestanding houses, ideal for rooftop solar installation.
Solar Adoption in Alexandra Hills 4161
Installation data from the Clean Energy Regulator, current to May 2026.
4,539
Solar Systems Installed
Since 2001
5 kW
Avg System Size
22.6 MW
Total Installed Capacity
288
Battery Systems
Alexandra Hills (4161) has 4,539 registered solar panel installations with a combined capacity of 22.6 MW. The average system size in this postcode is 5 kW. That's roughly 29% of dwellings with rooftop solar.
Installations fell 12% in 2025 compared to 2024's 198 systems.
Is Solar Worth It in Alexandra Hills?
Alexandra Hills gets 5.2 peak sun hours per day — above the national average. A 6.6 kW system here would produce roughly 10,021 kWh per year, saving an estimated $1,378 annually and paying itself off in 3.5 years.
At $4,885 after rebates, the upfront cost represents 5% of Alexandra Hills's median household income ($95,108/year). A relatively small outlay for a 20+ year asset that generates returns from day one.
Around 29% of dwellings in Alexandra Hills have solar, below the Queensland average of 42%. This means there's significant room for more installations — and early adopters tend to benefit most from current rebate levels before they taper off.
With a payback under 4 years and 20+ years of remaining system life, solar in Alexandra Hills is one of the stronger return-on-investment cases in Queensland. The question isn’t really whether solar is worth it here — it’s what size system to get.
Why Install Solar in Alexandra Hills?
With 5.2 peak sun hours per day, Alexandra Hills receives above-average solar irradiance for Australia. A standard 6.6 kW rooftop system here can generate approximately 10,021 kWh per year, saving an estimated $1,378 annually on electricity bills.
Alexandra Hills has a population of 16,472 across 15,747 dwellings. Queensland's abundant sunshine and electricity rates of around 30c/kWh make it one of the best states for solar returns.
The median household income in Alexandra Hills is $95,108 per year. At $4,885 after rebates, a 6.6 kW system represents 5% of annual household income, with savings that continue for 20+ years after the 3.5-year payback.
With car ownership at 95% of households, many residents in Alexandra Hills could benefit from pairing solar with a home EV charger. Charging an electric vehicle from rooftop solar can save $1,000 to $1,500 per year compared to grid charging.
Estimated Solar Output & Payback in Alexandra Hills
Based on 5.2 peak sun hours/day, 30c/kWh electricity, and STC Zone 1 rebate.
| System Size | Annual Output | Annual Savings | Cost After Rebate | Payback |
|---|---|---|---|---|
| 5 kW | 7,592 kWh | $1,044 | $4,004 $2,496 STC rebate | 3.8 yrs |
| 6.6 kW Most popular | 10,021 kWh | $1,378 | $4,885 $3,315 STC rebate | 3.5 yrs |
| 10 kW | 15,184 kWh | $2,088 | $6,469 $5,031 STC rebate | 3.1 yrs |
| 13 kW | 19,739 kWh | $2,714 | $7,948 $6,552 STC rebate | 2.9 yrs |
Estimates assume 80% system efficiency, 35% self-consumption rate, 5c/kWh feed-in tariff, and STC Zone 1 ($39/STC, 8-year deeming period). Actual results vary based on roof orientation, shading, and usage patterns.
Solar Rebates in Queensland
Available incentives that reduce the cost of solar installation in QLD.
STCs provide an upfront discount of $2,500 to $4,500 depending on system size. Queensland receives higher STC values due to its solar zone rating.
Queensland has no additional state solar rebate, but higher STC values partially compensate.
Popular Solar Panels
Top-rated panels available for installation in Alexandra Hills.
Solahart Silhouette Series
455W, 22.8% efficiency
$165
Solahart SunCell Series
440W, 22% efficiency
$140
Canadian Solar TOPHiKu 6
440W, 22.5% efficiency
$130
Trina Solar Vertex S+
440W, 22% efficiency
$120
How Solar Installation Works
Site Assessment and Quote
An installer visits your property, assesses your roof, checks shading, and provides a detailed quote based on your energy usage.
System Design and Approval
Your system is designed to maximise output. Council approval may be needed for heritage properties, but most residential installs are exempt.
Installation
A residential solar installation typically takes one day. The team mounts panels, installs the inverter, and connects the wiring.
Grid Connection and Meter
Your installer lodges paperwork with your distributor. Once approved, your meter is upgraded to a bi-directional meter and you start exporting.
Frequently Asked Questions
How many peak sun hours does Alexandra Hills get? ▼
Alexandra Hills receives approximately 5.2 peak sun hours per day, based on its subtropical climate zone. This means a standard 6.6 kW system can generate around 10,021 kWh annually.
What size solar system do I need in Alexandra Hills? ▼
The right system size depends on your electricity usage. Average household consumption in Queensland is 18 to 24 kWh per day. A 6.6 kW system suits most homes, while larger households or those with pools or EV chargers may benefit from a 10 kW or 13 kW system.
How much does solar installation cost in Alexandra Hills? ▼
A 6.6 kW solar system in Alexandra Hills costs approximately $8,200 before rebates. Alexandra Hills is in STC Zone 1, which provides a rebate of $3,315 on a 6.6 kW system. After rebates, expect to pay around $4,885.
What is the payback period for solar in Alexandra Hills? ▼
A 6.6 kW solar system in Alexandra Hills has an estimated payback period of 3.5 years, based on 5.2 peak sun hours per day and annual savings of $1,378. After the payback period, the system continues generating free electricity for its remaining 20+ year lifespan.
Do I need council approval for solar in Alexandra Hills? ▼
In Queensland, standard residential solar installations are self-assessable and generally do not need council approval. Properties in heritage areas or with specific overlays in Redland may need additional checks.
How Alexandra Hills Compares to Nearby Suburbs
Solar potential compared with neighbouring suburbs in the Redland area.
| Suburb | Sun Hours | 6.6 kW Output | Payback | Solar Adoption |
|---|---|---|---|---|
| Alexandra Hills 4161 | 5.2h | 10,021 kWh | 3.5 yrs | 29% |
| Birkdale 4159 | 5.2h | 10,021 kWh | 3.5 yrs | 31% |
| Pinklands 4164 | 5.2h | 10,021 kWh | 3.5 yrs | 27% |
All estimates assume a 6.6 kW system. Sun hours, output, and payback are based on the same methodology. Solar adoption shows CER-registered installations as a percentage of dwellings.
Nearby Suburbs
Solar installers in suburbs near Alexandra Hills.
Related Products
Solar output estimates use Bureau of Meteorology irradiance data and assume north-facing panels with no shading. Population and dwelling data: ABS 2021 Census. Electricity rates are state averages and may differ from your retailer's pricing. Get a personalised quote for accurate savings.