Kwinana, Western Australia, located in the Southern Sub Tropics at coordinates -32.2331, 115.8067, offers a generally favorable environment for solar PV energy generation throughout the year. The location experiences significant seasonal variations in solar energy production, with peak performance during the summer months.

Seasonal Solar Performance

Solar energy production in Kwinana varies considerably across the seasons:

• Summer: 8.80 kWh/day per kW installed
• Spring: 6.98 kWh/day per kW installed
• Autumn: 4.60 kWh/day per kW installed
• Winter: 3.20 kWh/day per kW installed

Summer and spring are the most productive seasons for solar energy generation in Kwinana, with output levels significantly higher than during autumn and winter.

Optimal Panel Positioning

For fixed panel installations in Kwinana, the ideal tilt angle to maximize year-round solar production is 27 degrees facing North. This angle optimizes the panels' exposure to sunlight throughout the year, accounting for the location's latitude and the Earth's elliptical orbit.

Environmental and Weather Considerations

While Kwinana generally provides good conditions for solar energy production, there are some factors that could potentially impact performance: 1. Dust and salt spray: Being close to the coast, salt spray and dust accumulation on panels can reduce efficiency. Regular cleaning and maintenance can mitigate this issue. 2. Heat: High temperatures during summer months can slightly reduce panel efficiency. Choosing heat-resistant panels and ensuring proper ventilation during installation can help maintain optimal performance. 3. Cloud cover: Winter months may see increased cloud cover, reducing solar irradiance. While this is a natural limitation, using high-efficiency panels can help maximize energy capture even in less ideal conditions.

Overall, Kwinana's location provides excellent potential for solar energy generation, particularly during summer and spring. With proper installation techniques and regular maintenance, these environmental factors can be effectively managed to ensure optimal solar production throughout the year.

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 Kwinana

Seasonal solar PV output for Latitude: -32.2331, Longitude: 115.8067 (Kwinana, 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 27° North in Kwinana, Australia

To maximize your solar PV system's energy output in Kwinana, Australia (Lat/Long -32.2331, 115.8067) throughout the year, you should tilt your panels at an angle of 27° 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 Kwinana, 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 Kwinana, Australia. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 27° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
16° North in Summer	37° North in Autumn	47° North in Winter	25° 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 Kwinana, 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 Kwinana, Australia.

Our calculation method

1. Solar Position:
   We determine the Sun's position on the Winter solstice using the location's latitude and solar declination.
2. Shadow Projection:
   We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle.
3. 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 Kwinana, Australia

The topography around Kwinana, Australia, is generally characterized by a flat to gently undulating coastal plain. This area, located south of Perth in Western Australia, sits on the eastern shore of Cockburn Sound, a sheltered body of water between the mainland and Garden Island. The terrain is relatively low-lying, with elevations typically ranging from sea level to about 50 meters above sea level.

The landscape in and around Kwinana is a mix of urban development, industrial areas, and some remaining natural vegetation. To the east of Kwinana, the terrain gradually rises into the Darling Scarp, a low escarpment that marks the edge of the coastal plain. This transition occurs over several kilometers, creating a subtle increase in elevation as you move inland.

When considering areas nearby that would be most suited to large-scale solar PV (photovoltaic) installations, there are a few factors to consider. Ideal locations for solar farms typically have flat or gently sloping terrain, good sun exposure, and are away from densely populated areas. With these criteria in mind, the following areas near Kwinana could be potential candidates:

The rural areas to the east and southeast of Kwinana, as you move towards Serpentine and Jarrahdale, offer more open spaces with less urban development. These locations have gently undulating terrain that could accommodate large solar arrays. The slightly higher elevation in these areas may also provide better exposure to sunlight throughout the day.

Another potential area for solar PV development could be the semi-rural regions to the south of Kwinana, towards Rockingham and Baldivis. These areas have expanses of cleared land that was previously used for agriculture, providing flat terrain that would be suitable for solar panel installation.

It's important to note that while these areas may be topographically suitable, other factors such as land ownership, zoning regulations, proximity to electrical infrastructure, and environmental considerations would also play crucial roles in determining the feasibility of large-scale solar PV projects. Additionally, care would need to be taken to avoid areas of significant ecological value or cultural importance to the local Indigenous communities.

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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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.