Question 1

What is a solar PV system, and how does it work?

Accepted Answer

A solar photovoltaic (PV) system uses solar panels to convert sunlight into electricity. The panels contain solar cells that generate direct current (DC) electricity when exposed to sunlight. An inverter then converts the DC into alternating current (AC) — the same power your home appliances run on. Excess electricity can be fed into the grid for a feed-in credit, or stored in a battery for use after sunset.

Question 2

What are the benefits of installing a solar PV system?

Accepted Answer

Lower electricity bills (typically 60-90% reduction), access to federal STC rebates and feed-in tariffs, reduced carbon footprint, increased property value, hedge against rising power prices, and Queensland's abundant year-round sunshine that maximises output. A well-sized system typically pays for itself in 3-5 years and continues producing for 25+ years.

Question 3

How much sunshine does Queensland receive, and how does that affect solar energy production?

Accepted Answer

Queensland averages 4-6 hours of peak sunlight per day depending on season and location — among the best solar resources in the world. Brisbane sits in a 'PV zone 3' rating, meaning a 6.6kW system typically produces 25-28 kWh/day annually, with summer peaks above 35 kWh/day. This abundant sunshine is why Queensland leads Australia in rooftop solar adoption.

Question 4

Can solar PV systems be installed on all types of roofs?

Accepted Answer

Yes — solar works on tile, Colorbond / metal, and flat membrane roofs. North-facing pitches at 15-30° are ideal, but east and west also perform well (15-20% less output). For shaded or split-orientation roofs we use microinverters or DC optimisers to recover lost production. We assess every roof during the free site survey.

Question 5

What happens to my solar PV system during cloudy or rainy days?

Accepted Answer

Panels still generate on overcast days — typically 15-35% of capacity depending on cloud cover. Light rain actually helps by washing dust off the panels. Queensland's high annual sunshine more than compensates for occasional cloudy stretches, which is why annual production estimates already factor in typical weather patterns.

Question 6

How much do solar PV systems cost in Queensland?

Accepted Answer

A quality 6.6kW system installed: $4,990-$7,990 after STC rebate. 10kW systems: $7,990-$11,990. 13.2kW systems: $9,990-$13,990. Prices vary by panel brand (Trina, Longi, REC, Jinko), inverter (Sungrow, Fronius, GoodWe), roof complexity and any switchboard upgrades required. Avoid systems under $4,000 — they typically use unbranded panels and inverters that fail within 5-8 years.

Question 7

How much can I save on electricity bills with a solar PV system in Queensland?

Accepted Answer

A 6.6kW Brisbane system saves $1,800-$2,800/year for an average household; 10kW saves $2,800-$4,200/year; 13.2kW saves $3,800-$5,200/year. Actual savings depend on your usage pattern (daytime vs evening), retailer tariff and feed-in rate. Most of our customers see their first quarterly bill drop 70-90% with a correctly-sized system.

Question 8

What size solar PV system is suitable for a typical household?

Accepted Answer

6.6kW is the minimum for small households (1-2 people, $400/qtr bill). 10kW suits most family homes ($500-700/qtr bill). 13.2kW is ideal for pool pumps, ducted AC, EV charging or households planning a battery. We size each system from your last 12 months of bills, not guesswork — bigger isn't always better, but undersizing leaves savings on the table.

Question 9

Are there any government rebates or incentives for solar PV systems in Queensland?

Accepted Answer

Yes — three big ones: (1) Federal STCs reduce upfront cost by $2,200-$4,400 depending on system size (deducted at point of sale). (2) Federal Cheaper Home Batteries Program (from July 2025) gives 30% off battery installations. (3) Energex feed-in tariffs of 5-15c/kWh for exported solar, varying by retailer. We handle all STC paperwork — the rebate is automatic.

Question 10

What is a feed-in tariff, and how does it work in Queensland?

Accepted Answer

A feed-in tariff (FiT) is what your energy retailer pays for excess solar you export to the grid. In 2026 Queensland FiTs range 5-15c/kWh depending on retailer — AGL, Origin, Red Energy, Powershop and Amber all offer different rates. Note: retailers offering the highest FiT often charge more for grid power, so we help you compare total bill impact, not just the FiT headline.

Question 11

Do I need a battery with my solar PV system?

Accepted Answer

Not always. Batteries make most sense if (a) you use most of your power after sunset, (b) you want blackout protection, or (c) you want to join a Virtual Power Plant (VPP) for extra income. With the 2025 Federal Battery Rebate cutting 30% off the price, payback has dropped from 10+ years to 6-8 years for many households. We model it both ways in your quote.

Question 12

How long does it take to install a solar PV system?

Accepted Answer

Residential installs (6.6kW-13.2kW) typically take 1 day. Larger systems with 3-phase upgrades or battery integration take 2-3 days. From quote acceptance to switch-on is usually 2-4 weeks, including Energex connection approval. We schedule around your work hours and never leave the site without testing every string.

Question 13

Is planning permission required to install a solar PV system in Queensland?

Accepted Answer

No — residential solar is exempt from planning approval in QLD as long as it meets local council and Energex DNSP rules (which we handle). Exceptions: heritage-listed properties, body-corporate units, or systems above 30kW. For these we lodge the council application as part of the project.

Question 14

What maintenance is required for a solar PV system in Queensland?

Accepted Answer

Very little. Panels are self-cleaning in most rainfall — only really dusty or pollen-prone roofs need a hose-down every 1-2 years. We recommend a professional check at year 2 and year 5 (electrical compliance, isolator condition, inverter health). Every iDeal Solar install includes cloud monitoring that alerts us if production drops, so issues are caught before you ever see a bill spike.

Question 15

What is the lifespan of a solar PV system?

Accepted Answer

Tier-1 panels are warranted for 25 years and typically still produce 85%+ output at year 30. Modern hybrid inverters last 10-15 years; microinverters are warranted 25 years. iDeal Solar systems carry 25-year panel performance warranties, 10-12 year inverter warranties, and 10-year workmanship — among the strongest packages in Brisbane.

Every question answered.

Brisbane solar by the numbers.

Still have questions?

Every question answered.

QWhat is a solar PV system, and how does it work?

QWhat are the benefits of installing a solar PV system?

QHow much sunshine does Queensland receive, and how does that affect solar energy production?

QCan solar PV systems be installed on all types of roofs?

QWhat happens to my solar PV system during cloudy or rainy days?

QHow much do solar PV systems cost in Queensland?

QHow much can I save on electricity bills with a solar PV system in Queensland?

QWhat size solar PV system is suitable for a typical household?

QAre there any government rebates or incentives for solar PV systems in Queensland?

QWhat is a feed-in tariff, and how does it work in Queensland?

QDo I need a battery with my solar PV system?

QHow long does it take to install a solar PV system?

QIs planning permission required to install a solar PV system in Queensland?

QWhat maintenance is required for a solar PV system in Queensland?

QWhat is the lifespan of a solar PV system?

Brisbane solar by the numbers.

Still have questions?