A 6.6kW system in Campbelltown is a common search for households balancing roof space and daytime usage. At about 5.5 peak sun hours/day in the Adelaide climate reference, expect roughly 36.3 kWh/day before losses. Compare CEC-accredited quotes on MrSolar.
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Indicative 2026 pricing in Campbelltown: a typical 6.6kW system often quotes around $5,500–$8,000 after the STC discount (competitive NSW metro; varies by roof, brand and export limits). See our solar cost guide.
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| Metric | Value |
|---|---|
| 6.6kW — daily | 36.3 kWh/day |
| 6.6kW — annual | 13,249 kWh/year |
Using 5.5 peak sun hours as a planning figure for Adelaide, a 6.6kW array can produce about 36.3 kWh/day and ~13,249 kWh/year. North vs east-west layouts, shade and inverter clipping change real results — insist on a site assessment.
STCs apply. SA’s Home Battery Scheme (loan-style support context) can influence battery timing. Indicative 6.6kW after STC often $4,800–$7,000 in competitive quotes. For Zone 3, MrSolar’s master table (spot $39.85 as of 2026-08-05) points to about $1,435 in STCs for a comparable residential size class. Indicative installed pricing still varies widely with roof complexity.
Many Campbelltown family homes land near 6.6kW as a balance of roof use and self-consumption. Check winter bills and tariff type before locking size.
SA Power Networks requires pre-approval before install on most residential jobs. Single-phase export is commonly discussed around a 10kW export ceiling historically — confirm the current rule for your NMI/street. Your installer should document the pathway for a 6.6kW system at Campbelltown.
Compare three CEC-accredited quotes. Require panel/inverter models, STC pass-through, export limits, and workmanship warranty. Solar still stacks up when you use power at home during the day or add a battery. Treat unlimited export assumptions as a red flag on any Adelaide quote.
Confirm CEC accreditation, exact product models, STC/battery subsidy line items, DNSP/export assumptions, and workmanship warranty length in writing. Compare at least three like-for-like quotes via MrSolar.
Get free 6.6kW solar quotes for Campbelltown from CEC-accredited installers on MrSolar.
Written and reviewed by Daniel (Marketplace lead, Epic Unicorn Pty Ltd). We build pages from Australian solar datasets and regulatory references, then map you to CEC-accredited installers only.
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