Solar installers Mount Louisa
Hillside homes with views over Townsville: Mount Louisa's north-facing slopes are some of the best solar aspects in the city.
- 30-year workmanship
- NETCC approved
- QLD #88205-licensed
- Postcode
- 4814
- Council
- Townsville City Council
- Network
- Ergon (regulated)
- From our Ormeau depot
- Partner crew, QVolt design
- Wind region
- Region C, cyclonic
- Sun-hours per day
- 5.7 avg
- STC zone
- Zone 2 (1.536)
What makes Mount Louisa different
Mount Louisa is the hill suburb between Kirwan and the city, with 1990s and 2000s homes climbing the slopes of the hill it is named for. Streets on the northern and eastern faces get long sun and views over Cleveland Bay; those on the southern side sit in the hill's shadow by mid-afternoon. It shares postcode 4814 with Annandale, Douglas and Cranbrook.
- 10,939 rooftop systems in postcode 4814, with 652 added in the year to July 2026
- New 4814 systems averaged 11.0 kW last year
- 703 batteries installed across 4814 in the 12 months to July 2026
- North-facing hillside roofs are already tilted toward the sun with nothing in front of them
- Ergon's regulated feed-in tariff of 13.4 cents/kWh rewards the extra output from a good aspect
What postcode 4814 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 4814, which covers Mount Louisa, along with Annandale and Douglas.
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.
Mount Louisa sunshine through the year
Twenty years of satellite-measured sunlight at the Mount Louisa 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
- 55%
- Annual output, 6.6 kW
- 11,741 kWh
- Hottest month, average max
- 42°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 Mount Louisa
Pre-loaded with Mount Louisa's own sun-hours, Ergon (regulated) tariffs and a typical local home. Slide the bill to match yours.
Preset for a typical Mount Louisa home: Split-level family home, ducted air, pool. Adjust to match yours.
Hillside Mount Louisa homes catch the sea breeze, but ducted air and pools still dominate summer bills. A 10 kW array on a north-facing slope covers it with exports to spare.
- Share of your bill covered
- 90%
- Indicative installed price
- $10,000
- Used at home / exported
- 7,111 / 10,666 kWh
- STC rebate (Zone 2)
- about 76 STCs, $2,964
Estimate only. Uses NASA POWER 20-year average sun-hours for Mount Louisa, Ergon (regulated) 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 4814 filled inCan you export solar in Mount Louisa?
Ergon (regulated) publishes how much solar each street transformer can still absorb. See the Mount Louisa snapshot and check your own address in about ten seconds.
What we find on Mount Louisa roofs
The northern and eastern slopes of Mount Louisa are ideal: roofs tilted toward the sun with nothing in front of them. Homes on the southern side lose afternoon light behind the hill, and we model that exactly. Hillside blocks mean split-level roofs and more planes to choose from. Cyclone Region C mounting and good airflow under the panels are standard, as everywhere in Townsville.
- Housing era
- 1990s to 2000s block and brick homes, some 2010s rebuilds
- Roof material
- Concrete tile and Colorbond
- Roof pitch
- Moderate, 18 to 25 degrees
- Typical block
- 600 to 900 m2, sloping
- Home type
- Detached family homes on hillside blocks
- Shading
- Low on the northern slopes, moderate on the southern side
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 |
Split-level family home, ducted air, pool: 10 kW, self-consumption around 40%.
What applies to a Mount Louisa install
Council and network
The planning overlays that matter on Mount Louisa are bushfire and landslide hazard on the upper slopes. Neither restricts roof panels, but both shape where ground-level equipment sits and how cables are routed. Panels on an existing dwelling are accepted development under the Townsville City Plan, and there are no heritage constraints. Hillside roofs see higher wind speeds, so the cyclone Region C engineering is worked through for each roof. Ergon Energy applies its standard 5 kW single-phase export cap, and exports earn the regulated feed-in tariff of 13.4 cents.
STC rebate in Mount Louisa
Mount Louisa is in STC Zone 2 (rating 1.536). With a 5-year deeming period, a 6.6 kW system earns about 50 certificates, roughly $1,950 at $39 each, and a 10 kW system about 76, roughly $2,964. 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 4814 added 703 batteries in the year to July 2026. We size the battery to your evening use, not the biggest unit on the truck.
Asked by Mount Louisa homeowners
I am on the southern side of Mount Louisa. Is solar still worth it?
Usually, yes. The hill shortens the afternoon, but mornings and midday are clear. We model the shadow for your address and often find an east-facing plane that produces within 15 percent of an ideal roof.
Does a sloping block change the install?
It changes access more than design. We bring edge protection and a longer ladder for split-level homes, and the multiple roof planes give us more options for the layout.
What size system suits a Mount Louisa family home?
A 10 kW system for a home with ducted air and a pool. New systems in 4814 averaged 11.0 kW in the year to July 2026, which matches that.
Suburbs we cover near Mount Louisa
Mount Louisa installs are coordinated through QVolt's partner crew with our design, equipment selection and 30-year workmanship warranty.
30 year workmanship warranty
30 year panel warranty
10 year inverter warranty
10 year battery warranty
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