State / Territory Guide
Solar Panel Cost in NSW (2026)
GradeSExcellentModel NSW solar ROI with local electricity rates, STC rebates, and installer cost benchmarks.
Last updated: 2026-06-25 · Source label: AEMO electricity data, Australian installed-cost benchmarks, BOM/PVGIS solar assumptions, Clean Energy Regulator STC policy context
New South Wales is one of the strongest residential solar markets in the world. Sydney averages 4.5 peak sun hours per day, and installed prices have fallen to around A$1.00/W (Solar Choice Price Index, June 2026), so a standard 6.6 kW system costs roughly A$6,600 before incentives. The federal Small-scale Technology Certificate (STC) scheme discounts that by about A$2,700 upfront, bringing the net cost close to A$3,900. With benchmark residential electricity around 30c/kWh from retailers such as AGL, Origin, and EnergyAustralia, a well-sized system typically pays back in 4-5 years. The key to NSW economics is self-consumption: feed-in tariffs for exported power are only 5-8c/kWh — far below the retail rate — so using solar while it is generating, or storing it in a battery for the evening peak, is worth far more than exporting it. NSW has no broad state-level cash rebate in 2026 beyond the national STC, though low-income and battery-specific programs appear periodically. North-facing, unshaded roofs capture the most value, and oversizing toward daytime load beats chasing export credits.
Estimates based on New South Wales (Sydney) state or territory averages. Your actual cost depends on roof, equipment, installer, and financing.
Incentives & Rebates
Small-scale Technology Certificates (STCs)
National STC rebate provides ~A$2,500-3,000 upfront discount on a 6.6kW system.
Feed-in Tariff
Varies by state and retailer. Typically 5-12c/kWh for exported solar electricity.
Net Metering
Feed-in tariffs pay for exported electricity at retailer-determined rates. Self-consumption drives most savings.
Top Electric Utilities
- 1. Origin Energy
- 2. AGL
- 3. EnergyAustralia
Source: AEMO and retailer coverage references
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New South Wales is one of the strongest residential solar markets in the world. Sydney averages 4.5 peak sun hours per day, and installed prices have fallen to around A$1.00/W (Solar Choice Price Index, June 2026), so a standard 6.6 kW system costs roughly A$6,600 before incentives. The federal Small-scale Technology Certificate (STC) scheme discounts that by about A$2,700 upfront, bringing the net cost close to A$3,900. With benchmark residential electricity around 30c/kWh from retailers such as AGL, Origin, and EnergyAustralia, a well-sized system typically pays back in 4-5 years. The key to NSW economics is self-consumption: feed-in tariffs for exported power are only 5-8c/kWh — far below the retail rate — so using solar while it is generating, or storing it in a battery for the evening peak, is worth far more than exporting it. NSW has no broad state-level cash rebate in 2026 beyond the national STC, though low-income and battery-specific programs appear periodically. North-facing, unshaded roofs capture the most value, and oversizing toward daytime load beats chasing export credits.
Use this result
Use the calculator inputs first, then compare the result against local rates, incentives, roof conditions, and utility export rules.
Method, assumptions, and sourcesOpen this section when you want to audit the calculation behind the estimate.ShowHide
Calculation Method
NSW solar payback = net installed cost after STC rebate / annual avoided electricity cost
Key Assumptions
- Policy last reviewed: 2026-06-25.
- Electricity rate uses AEMO and state benchmark retailer data.
- Solar installed cost uses Solar Choice Price Index June 2026 data.
- STC rebate estimated at ~A$2,700 for a 6.6kW system.
Data Sources
Electricity rates
AEMO and state benchmark tariff data
New South Wales (Sydney) residential electricity rate.
Solar production
BOM / PVGIS-CMSAF
NSW average 4.5 peak sun hours per day.
Solar installed cost
Solar Choice Price Index June 2026
NSW average installed cost for a 6.6kW system.
Incentives
Clean Energy Regulator (STC)
Small-scale Technology Certificates: ~A$2,700 discount on a 6.6kW system.
Result Summary
Typical system cost (6.6 kW)
A$6,270-A$6,930
After STC discount (~A$2,700).
Annual bill savings
A$900-A$1,800
Depends on self-consumption rate and electricity price.
Formula Assumptions Data Sources FAQ Related Links