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Solar PV Analysis of Rockdale, Australia
Rockdale, New South Wales, Australia, located in the Southern Sub Tropics, presents a generally favorable environment for solar PV energy generation throughout the year. The location's seasonal solar output varies significantly, with peak production occurring during the summer months.
Seasonal Solar Performance
Summer stands out as the most productive season, with an impressive 6.71 kWh per day generated for each kW of installed solar capacity. Spring follows closely behind, yielding 5.83 kWh/day. Autumn sees a moderate decrease in output at 4.26 kWh/day, while winter experiences the lowest production at 3.37 kWh/day per kW installed.
These figures indicate that Rockdale enjoys substantial solar potential year-round, with particularly strong performance from late spring through early autumn. The consistent sunshine during these months makes it an ideal time for maximizing solar energy production.
Optimal Panel Installation
To maximize year-round solar energy production in Rockdale, fixed solar panels should be installed at a tilt angle of 31 degrees facing north. This angle has been calculated to optimize the panels' exposure to sunlight throughout the year, taking into account the location's latitude and the Earth's elliptical orbit.
Environmental Considerations
While Rockdale's climate is generally conducive to solar energy production, there are a few environmental factors to consider:
- Coastal proximity: Rockdale's location near the coast may expose solar panels to salt spray, potentially leading to corrosion over time.
- Urban setting: The area's urban environment might result in some shading from nearby buildings or structures.
To mitigate these factors, installers should use corrosion-resistant materials and coatings for solar panel components. Additionally, careful site assessment and panel placement can help minimize shading issues. Regular cleaning and maintenance of the panels will also ensure optimal performance in this coastal urban environment.
Overall, Rockdale's location offers excellent potential for solar PV energy generation, with only minor environmental challenges that can be effectively addressed through proper installation and maintenance practices.
Note: The Southern Sub Tropics extend from -23.5° latitude South down to -35° latitude.
So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 501 locations across Australia. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Australia by location
Solar output per kW of installed solar PV by season in Rockdale
Seasonal solar PV output for Latitude: -33.953, Longitude: 151.1375 (Rockdale, Australia), based on our analysis of 8760 hourly intervals of solar and meteorological data (one whole year) retrieved for that set of coordinates/location from NASA POWER (The Prediction of Worldwide Energy Resources) API:
Ideally tilt fixed solar panels 31° North in Rockdale, Australia
To maximize your solar PV system's energy output in Rockdale, Australia (Lat/Long -33.953, 151.1375) throughout the year, you should tilt your panels at an angle of 31° North for fixed panel installations.
As the Earth revolves around the Sun each year, the maximum angle of elevation of the Sun varies by +/- 23.45 degrees from its equinox elevation angle for a particular latitude. Finding the exact optimal angle to maximise solar PV production throughout the year can be challenging, but with careful consideration of historical solar energy and meteorological data for a certain location, it can be done precisely.
We use our own calculation, which incorporates NASA solar and meteorological data for the exact Lat/Long coordinates, to determine the ideal tilt angle of a solar panel that will yield maximum annual solar output. We calculate the optimal angle for each day of the year, taking into account its contribution to the yearly total PV potential at that specific location.
Seasonally adjusted solar panel tilt angles for Rockdale, Australia
If you can adjust the tilt angle of your solar PV panels, please refer to the seasonal tilt angles below for optimal solar energy production in Rockdale, Australia. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 31° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 18° North in Summer | 40° North in Autumn | 49° North in Winter | 28° North in Spring |
Our recommendations take into account more than just latitude and Earth's position in its elliptical orbit around the Sun. We also incorporate historical solar and meteorological data from NASA's Prediction of Worldwide Energy Resources (POWER) API to assign a weight to each ideal angle for each day based on its historical contribution to overall solar PV potential during a specific season.
This approach allows us to provide much more accurate recommendations than relying solely on latitude, as it considers unique weather conditions in different locations sharing the same latitude worldwide.
Calculate solar panel row spacing in Rockdale, Australia
We've added a feature to calculate minimum solar panel row spacing by location. Enter your panel size and orientation below to get the minimum spacing in Rockdale, Australia.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - Minimum Spacing:
We add the shadow length to the horizontal space occupied by tilted panels.
This approach ensures maximum space efficiency while avoiding shading during critical times, as the Winter solstice represents the worst-case scenario for shadow length.
Topography for solar PV around Rockdale, Australia
The topography around Rockdale, Australia, which is located in the southern suburbs of Sydney, is characterized by a mix of low-lying coastal areas and gently rolling hills. Rockdale itself is situated on relatively flat terrain, with elevations generally ranging from sea level to about 30 meters above sea level.
To the east of Rockdale, you'll find Botany Bay and the coastal areas, which are predominantly flat and low-lying. This coastal plain extends for several kilometers inland. As you move westward from Rockdale, the terrain gradually becomes more undulating, with small hills and valleys becoming more prominent.
The area is part of the larger Sydney Basin, which is known for its sandstone bedrock. This underlying geology has influenced the local topography, creating a landscape of plateaus, ridges, and valleys. However, in the immediate vicinity of Rockdale, these features are less pronounced compared to areas further inland.
Regarding areas nearby that would be most suited to large-scale solar PV (photovoltaic) installations, there are a few considerations to keep in mind. The ideal locations for solar farms are typically flat or gently sloping areas with minimal shading and good sun exposure. Given these criteria, the following areas near Rockdale might be more suitable:
1. The relatively flat areas to the southwest of Rockdale, towards Kurnell Peninsula, could potentially be suitable. This area has less urban development and more open space.
2. Some of the less developed areas to the west and southwest of Rockdale, such as parts of Menai or Heathcote, might offer suitable terrain for solar installations. These areas have more expansive, open spaces with gentle slopes.
3. While not in the immediate vicinity, the flatter regions further south and southwest, towards Wollongong and the Southern Highlands, could provide more opportunities for large-scale solar projects due to their more rural nature and larger available land areas.
It's important to note that the Sydney metropolitan area, including Rockdale and its surroundings, is heavily urbanized. This urban development significantly limits the available space for large-scale solar installations. Any potential sites would need to be carefully evaluated for their environmental impact, proximity to the electrical grid, and compliance with local zoning and land-use regulations.
Australia solar PV Stats as a country
Australia ranks 7th in the world for cumulative solar PV capacity, with 19,076 total MW's of solar PV installed. This means that 10.70% of Australia's total energy as a country comes from solar PV (that's 2nd in the world). Each year Australia is generating 742 Watts from solar PV per capita (Australia ranks 2nd in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Australia?
Yes, there are a variety of incentives available in Australia to businesses wanting to install solar energy. These include:
1. Renewable Energy Target (RET): The RET provides businesses with financial assistance for installing and operating renewable energy systems such as solar panels. Businesses may be eligible to receive certificates that can be sold or traded on the open market for additional income.
2. Feed-in Tariffs: Some states offer feed-in tariffs which pay businesses for generating and exporting excess electricity from their solar panel system back into the grid during peak demand periods.
3. Solar Credits: The Solar Credits program provides households and small business owners with an upfront discount when purchasing a new solar system, based on the amount of renewable energy generated by the system over its lifetime.
4. Tax Breaks: Small business owners may be able to claim tax deductions on certain expenses associated with installing a solar power system, including installation costs, maintenance expenses and interest payments related to financing arrangements taken out specifically for this purpose.
Do you have more up to date information than this on incentives towards solar PV projects in Australia? Please reach out to us and help us keep this information current. Thanks!
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 27th of July 2024
Last Updated: Monday 21st of July 2025
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Compare this location to others worldwide for solar PV potential
The solar PV analyses available on our website, including this one, are offered as a free service to the global community. Our aim is to provide education and aid informed decision-making regarding solar PV installations.
However, please note that these analyses are general guidance and may not meet specific project requirements. For in-depth, tailored forecasts and analysis crucial for feasibility studies or when pursuing maximum ROI from your solar projects, feel free to contact us; we offer comprehensive consulting services expressly for this purpose.
Helping you assess viability of solar PV for your site
Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide
Enhance your solar panel's performance with our in-depth guide. Determine the best tilt angle using hard data, debunk common misunderstandings, and gain insight into how your specific location affects solar energy production.
