Solar Potential in Hornsby, NSW
Estimate the rooftop solar yield for any Hornsby address — panel count, annual kWh, and payback period based on aerial imagery analysis of your actual roof. Hornsby has 769 heritage items — check your address for heritage constraints. Combine with a shadow check to see if neighbouring buildings will reduce your yield, or check granny flat eligibility if you are planning a secondary dwelling.
Sunshine hours/yr
2,520 hrs
BOM Pennant Hills
Ref. payback (6.6 kW)
3.6 years
at current NSW tariffs
Heritage items
769
check address above
Solar in Hornsby — common questions
Is solar worth it in Hornsby Shire?
Hornsby Shire receives around 2,520 sunshine hours per year. A 6.6 kW system yields approximately 13,306 kWh/year with a payback of about 3.6 years. Tree canopy in some areas can reduce effective yield — check shading in the aerial tile above.
Are there heritage restrictions on solar in Hornsby?
Hornsby Shire has 769 heritage items. Several townships have heritage conservation areas including Berowra, Galston, and parts of Hornsby town centre. Solar on listed buildings or in conservation areas requires council approval.
Does tree shading affect solar in Hornsby?
Hornsby's heavily treed character means shading is a significant factor for many properties. The aerial imagery analysis checks for roof area but cannot account for nearby tree shading. A site inspection by an installer is recommended to assess shading impact.
What network serves Hornsby?
Hornsby is served by Ausgrid. Feed-in tariffs are negotiated with your electricity retailer.
What solar system size suits Hornsby homes?
Hornsby has a mix of small cottages and larger family homes. System sizes range from 5 kW for smaller blocks to 10–13 kW for larger properties. Use the checker above to estimate your specific roof capacity.
Planning a granny flat in Hornsby?
Check SEPP Housing 2021 eligibility — lot area, zoning, heritage, and flood exclusions — in 15 seconds.
Check granny flat eligibility →Also check: flood risk in Hornsby
Also check nearby councils
Solar yield estimates based on aerial imagery analysis and BOM sunshine hours for Pennant Hills station. Financial figures use AER DMO 2025–26 tariff benchmarks and SolarQuotes NSW 2026 install cost data. Indicative only — actual yield depends on shading, panel degradation, and household consumption patterns. Not financial advice.