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Real pricing data and statistics for solar panel installations in Brentwood, South Australia. Learn more in our comprehensive solar buying guide.
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The federal Small-scale Technology Certificate (STC) rebate reduces your upfront cost by $2,160 for a typical 6.6kW system in Brentwood.
The STC rebate is calculated based on your postcode (5575), system size, and the deeming period. All quotes from our network include this rebate automatically.
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Available government rebates for Brentwood residents in South Australia
Subsidy for battery storage systems
Plus federal STC rebate (shown above) - combine all available rebates to maximize your savings
Regardless of state rebates, all Brentwood homeowners are eligible for the federal STC rebate, which typically reduces the cost of a 6.6kW system by $2,160. This rebate is available until 2030 and decreases each year, so installing solar sooner means greater savings.
The Australian Government's Cheaper Home Batteries Program is now available for Brentwood residents! Save up to $330 per usable kWh (approximately 30% off) on home battery installations.
Typical Savings:
Key Requirements:
Important: The battery rebate is separate from the solar STC rebate, so you can claim both! The rebate value decreases each year until 2030, making now the best time to invest in battery storage for your Brentwood home.
All quotes automatically include available federal and South Australia rebates
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Based on 4 reviewsSolar installation costs in Brentwood typically range from $4,752 to $6,402 for a quality 6.6kW system after the federal STC rebate. The wide price range reflects different quality tiers, installer experience levels, and specific site requirements.
Most Brentwood homeowners pay around $5,610 for a mid-range quality system, which represents good value with moderate installer competition in this area. Lower pricing in this area makes solar particularly attractive financially.
A complete 6.6kW system in Brentwood typically includes:
With average electricity savings of $3,091 per year in Brentwood, the typical system pays for itself in approximately 1.8 years. After the payback period, you'll enjoy 15-20+ years of virtually free electricity, with total lifetime savings often exceeding $62k.
Tip for Brentwood homeowners: While cost is important, focus on quality installers with strong local references. The difference between a $7,800 and $8,500 system is often the quality of panels and installer workmanship - crucial for a 25-year investment on your roof.
Brentwood residents in South Australia can access:
Combined, these rebates can reduce your upfront cost by $2,160+ . Get your personalized rebate calculation with your free quotes.
Absolutely! Brentwood receives an average of 5.9 hours of peak sunlight per day (very good sun hours combined with Australia's highest electricity rates), making it very good for residential solar energy systems.
The economics are compelling for Brentwood homeowners. With South Australia electricity rates currently at approximately 38c/kWh (highest in Australia) and continuing to rise, every kilowatt-hour your solar system generates directly replaces expensive grid electricity. Many Brentwood families report reducing their electricity bills by 60-90% after installing solar.
A typical 6.6kW solar system installed in Brentwood will:
Over a 25-year system lifespan, Brentwood homeowners can expect total savings of approximately $71k-$77k (accounting for 1.8 year payback plus 20+ years of free electricity), making solar one of the best financial investments available for homeowners.
Note: South Australia has the highest electricity rates in Australia, making solar particularly effective for Brentwood homeowners. Your savings could be even higher than average.
The ideal solar system size for your Brentwood home depends on your daily electricity consumption, available roof space, and energy goals. The key is matching your system size to your actual usage patterns to maximize savings without oversizing unnecessarily.
How to determine your needs: Check your recent electricity bills to find your daily kilowatt-hour (kWh) usage. In Brentwood, average households use 18-25 kWh/day, though this varies significantly based on home size, appliances, and lifestyle.
| Household Profile | Daily Usage | Recommended Size | Est. Cost in Brentwood |
|---|---|---|---|
| 1-2 people, small home, minimal AC | 10-15 kWh/day | 3.3-5kW (10-16 panels) | $3,086-$4,039 |
| 3-4 people, standard home (most popular) | 15-25 kWh/day | 6.6kW (18-20 panels) | $4,752-$6,402 |
| 5+ people, large home, pool, or EV | 25-40 kWh/day | 10-13kW (28-38 panels) | $7,013-$8,864 |
Why 6.6kW is most popular in Brentwood: The 6.6kW system (with a 5kW inverter) represents the sweet spot for most households. It's the maximum size eligible for standard single-phase connection in Australia, offers excellent cost-per-watt value, fits on most residential roofs (requiring approximately 33-40m² of suitable north-facing or west-facing roof space), and typically generates 10,660 kWh annually in Brentwood—enough to cover 70-100% of average household consumption.
Planning for the future: Consider sizing slightly larger if you're planning to purchase an electric vehicle, install a pool, or work from home more frequently. Brentwood homes with EVs typically benefit from 8-10kW systems. Conversely, if you're rarely home during the day and don't have a battery, a smaller 4-5kW system might be more cost-effective.
Expert tip for Brentwood: During your free quote consultation, ask installers to review your recent bills and recommend a system size based on your actual consumption patterns rather than just household size. The best installers in Brentwood will use professional software to model your specific energy usage and roof characteristics for optimal system design.
The Australian Government's Cheaper Home Batteries Program offers up to $330 per usable kWh (≈30% off) for battery installations in Brentwood. Combined with faster payback periods, batteries are now more affordable than ever!
Adding battery storage to your solar system in Brentwood allows you to store excess solar energy generated during the day for use at night or during power outages. With electricity rates at 38c/kWh (highest in Australia), battery storage can significantly increase your energy independence and savings, paying for itself faster than ever with the new federal rebate.
Without a battery, most Brentwood homeowners only use 20-30% of their solar energy directly, exporting the rest to the grid for a low feed-in tariff (typically 5-10c/kWh). But when you consume that same electricity from the grid at night, you pay 38c/kWh. A battery lets you store your excess solar and use it when electricity is most expensive, dramatically increasing your savings.
Example for Brentwood: A typical household exports 15kWh/day to the grid (earning $1.50 at 10c/kWh feed-in) but buys it back at night for $4.20 (at 28c/kWh). With a battery, you keep that 15kWh and save the $4.20 daily purchase cost = $1,500+ annual saving beyond solar alone.
| Battery System | Usable Capacity | Warranty | Typical Cost | With Federal Rebate |
|---|---|---|---|---|
| Tesla Powerwall 3 | 13.5kWh | 10 years | $15,000-$17,000 | ~$11,000-$13,000 |
| Sungrow SBR096/128/160 | 9.6-16kWh | 10 years | $10,000-$14,000 | ~$7,000-$10,000 |
| BYD Battery-Box Premium LVS | 8-16kWh | 10 years | $9,000-$13,000 | ~$6,500-$9,500 |
| Enphase IQ Battery 5P | 5kWh (modular) | 15 years | $8,000-$10,000 | ~$6,500-$8,500 |
| Alpha ESS Smile-B3 | 10.1kWh | 10 years | $8,500-$11,000 | ~$5,500-$8,000 |
*Prices include installation. Federal rebate assumes ~$330/kWh discount. Actual rebate amount varies by usable capacity. All systems are VPP-capable as required by the federal program.
Federal Cheaper Home Batteries Program
Up to $330/kWh (~30% off total cost)
Home Battery Scheme
Subsidy for battery storage systems ($6,000)
Virtual Power Plant (VPP) Programs
Additional rebates/income by joining VPP networks (optional)
The ideal battery size depends on your evening/night electricity consumption and solar system size:
Pro tip for Brentwood: A battery should be sized to cover your evening/overnight usage (roughly 6pm-7am). Check your smart meter data or ask your installer to analyze your consumption patterns. Oversizing wastes money; undersizing limits your savings potential.
With the new federal rebate reducing upfront costs by ~30%, battery payback periods in Brentwood have improved dramatically:
❌ Without Federal Rebate (2024):
✅ With Federal Rebate (2025+):
After payback, batteries typically continue working for another 3-8+ years, providing $5,400-$14,400 in additional free energy. Total 10-15 year ownership savings often exceed $15,000-$25,000 for Brentwood homeowners.
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