Gridly
NSW 2810 · Weddin
Solar Panel Installation in Grenfell, NSW
Find a vetted solar installer in Grenfell. Compare quotes, check local solar data, and get a system designed for your roof.
Get Free Solar QuotesSolar Snapshot for Grenfell
Key data for sizing a solar system in Grenfell, NSW 2810.
5.2/day
Peak Sun Hours
10,021
Est. Annual Output (6.6 kW)
$1,553
Est. Annual Savings
3.5 yrs
Est. Payback (6.6 kW)
$2,808
STC Rebate (6.6 kW)
Zone 3
Dwelling Mix in Grenfell
Breakdown of dwelling types based on census data — relevant for understanding rooftop solar potential.
Houses
93%
1,224 dwellings
Townhouses
3%
35 dwellings
Apartments
3%
46 dwellings
Grenfell is predominantly freestanding houses, ideal for rooftop solar installation.
Solar Adoption in Grenfell 2810
Installation data from the Clean Energy Regulator, refreshed monthly.
821
Solar Systems Installed
Since 2001
7.4 kW
Avg System Size
6.1 MW
Total Installed Capacity
58
Battery Systems
Grenfell (2810) has 821 registered solar panel installations with a combined capacity of 6.1 MW. The average system size in this postcode is 7.4 kW.
Installations fell 25% in 2025 compared to 2024's 73 systems.
Is Solar Worth It in Grenfell?
Grenfell gets 5.2 peak sun hours per day — above the national average. A 6.6 kW system here would produce roughly 10,021 kWh per year, saving an estimated $1,553 annually and paying itself off in 3.5 years.
At $5,392 after rebates, the upfront cost represents 10% of Grenfell's median household income ($54,496/year). Most households finance this over 3–5 years, with loan repayments typically offset by immediate savings.
With a payback under 4 years and 20+ years of remaining system life, solar in Grenfell is one of the stronger return-on-investment cases in New South Wales. The question isn’t really whether solar is worth it here — it’s what size system to get.
Why Install Solar in Grenfell?
With 5.2 peak sun hours per day, Grenfell receives above-average solar irradiance for Australia. A standard 6.6 kW rooftop system here can generate approximately 10,021 kWh per year, saving an estimated $1,553 annually on electricity bills.
NSW households pay some of the highest electricity rates in Australia at around 35c/kWh, making solar an especially strong investment.
The median household income in Grenfell is $54,496 per year. At $5,392 after rebates, a 6.6 kW system represents 10% of annual household income, with savings that continue for 20+ years after the 3.5-year payback.
Estimated Solar Output & Payback in Grenfell
Based on 5.2 peak sun hours/day, 35c/kWh electricity, and STC Zone 3 rebate.
| System Size | Annual Output | Annual Savings | Cost After Rebate | Payback |
|---|---|---|---|---|
| 5 kW | 7,592 kWh | $1,177 | $4,355 $2,145 STC rebate | 3.7 yrs |
| 6.6 kW Most popular | 10,021 kWh | $1,553 | $5,392 $2,808 STC rebate | 3.5 yrs |
| 10 kW | 15,184 kWh | $2,354 | $7,210 $4,290 STC rebate | 3.1 yrs |
| 13 kW | 19,739 kWh | $3,060 | $8,923 $5,577 STC rebate | 2.9 yrs |
Estimates assume 80% system efficiency, 35% self-consumption rate, 5c/kWh feed-in tariff, and STC Zone 3 ($39/STC, 8-year deeming period). Actual results vary based on roof orientation, shading, and usage patterns.
Solar Rebates in New South Wales
Available incentives that reduce the cost of solar installation in NSW.
Small-scale Technology Certificates (STCs) provide an upfront discount worth $2,500 to $4,000 depending on system size and location.
NSW Peak Demand Reduction Scheme offers incentives for solar-battery systems that reduce evening grid load.
Popular Solar Panels
Top-rated panels available for installation in Grenfell.
Solahart Silhouette Series
455W, 22.8% efficiency
$165
Solahart SunCell Series
440W, 22% efficiency
$140
Canadian Solar TOPHiKu 6
440W, 22.5% efficiency
$130
Trina Solar Vertex S+
440W, 22% efficiency
$120
How Solar Installation Works
Site Assessment and Quote
An installer visits your property, assesses your roof, checks shading, and provides a detailed quote based on your energy usage.
System Design and Approval
Your system is designed to maximise output. Council approval may be needed for heritage properties, but most residential installs are exempt.
Installation
A residential solar installation typically takes one day. The team mounts panels, installs the inverter, and connects the wiring.
Grid Connection and Meter
Your installer lodges paperwork with your distributor. Once approved, your meter is upgraded to a bi-directional meter and you start exporting.
Frequently Asked Questions
How many peak sun hours does Grenfell get? ▼
Grenfell receives approximately 5.2 peak sun hours per day, based on its warm temperate climate zone. This means a standard 6.6 kW system can generate around 10,021 kWh annually.
What size solar system do I need in Grenfell? ▼
The right system size depends on your electricity usage. Average household consumption in New South Wales is 18 to 22 kWh per day. A 6.6 kW system suits most homes, while larger households or those with pools or EV chargers may benefit from a 10 kW or 13 kW system.
How much does solar installation cost in Grenfell? ▼
A 6.6 kW solar system in Grenfell costs approximately $8,200 before rebates. Grenfell is in STC Zone 3, which provides a rebate of $2,808 on a 6.6 kW system. After rebates, expect to pay around $5,392.
What is the payback period for solar in Grenfell? ▼
A 6.6 kW solar system in Grenfell has an estimated payback period of 3.5 years, based on 5.2 peak sun hours per day and annual savings of $1,553. After the payback period, the system continues generating free electricity for its remaining 20+ year lifespan.
Do I need council approval for solar in Grenfell? ▼
In most of NSW, residential solar installations are classified as exempt development and do not require council approval. Heritage-listed properties or conservation areas in Weddin may have additional requirements. Your installer will advise during the site assessment.
Related Products
Data sources: Clean Energy Regulator (installation counts), ABS 2021 Census (population and dwellings), Bureau of Meteorology (solar exposure). Solar output estimates assume north-facing panels with no shading. Electricity rates are state averages and may differ from your retailer's pricing. Get a personalised quote for accurate savings.