Newhaven, Victoria, Australia, located at latitude -38.509 and longitude 145.3524, offers varying potential for solar energy generation throughout the year. This coastal town in the Southern Temperate Zone experiences significant seasonal fluctuations in solar output, which impacts the efficiency of photovoltaic (PV) systems.
Seasonal Solar Performance
The location's solar energy production peaks during summer, with an impressive 7.33 kWh per day for each kilowatt of installed solar capacity. Spring follows as the second-most productive season, generating 5.81 kWh/day. However, autumn and winter see a considerable drop in output, with 3.70 kWh/day and 2.43 kWh/day respectively.
These figures indicate that Newhaven is most ideal for solar energy generation during the warmer months, particularly from late spring through early autumn. During this period, longer days and more direct sunlight contribute to higher energy yields.
Optimal Panel Installation
To maximize year-round solar production at this location, fixed solar panels should be installed at a tilt angle of 33 degrees facing North. This angle is calculated to optimize the panels' exposure to sunlight throughout the year, taking into account the Earth's elliptical orbit and the site's specific latitude.
Environmental Considerations
While Newhaven's location is generally favorable for solar energy, there are some environmental factors that could impact production:
- Coastal weather: Being a coastal town, Newhaven may experience salt spray and high humidity, which can potentially corrode solar equipment over time.
- Cloud cover: The region can experience periods of overcast weather, particularly during winter months, which may reduce solar output.
To mitigate these factors, installers should use corrosion-resistant materials and apply protective coatings to solar panels and mounting systems. Regular cleaning and maintenance can also help prevent salt buildup and ensure optimal performance. Additionally, using high-efficiency panels can help maximize energy production even during periods of reduced sunlight.
In conclusion, while Newhaven experiences significant seasonal variations in solar output, proper installation techniques and preventative measures can help ensure consistent energy production throughout the year.
Note: The Southern Temperate Zone extends from -35° latitude South down to -66.5° 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 Newhaven
Seasonal solar PV output for Latitude: -38.509, Longitude: 145.3524 (Newhaven, 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 33° North in Newhaven, Australia
To maximize your solar PV system's energy output in Newhaven, Australia (Lat/Long -38.509, 145.3524) throughout the year, you should tilt your panels at an angle of 33° 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 Newhaven, 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 Newhaven, Australia. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 33° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 22° North in Summer | 43° North in Autumn | 53° North in Winter | 31° 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 Newhaven, 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 Newhaven, 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 Newhaven, Australia
The topography around Newhaven, Australia, located at latitude -38.509 and longitude 145.3524, is characterized by a diverse coastal landscape. Situated on Phillip Island in the state of Victoria, Newhaven is surrounded by a mix of gently rolling hills, low-lying coastal plains, and rugged shorelines. To the north and east of Newhaven, the terrain gradually rises into gentle hills and undulating farmland. These areas are predominantly used for agriculture, with open fields and scattered patches of native vegetation. The elevation in this region typically ranges from sea level to around 50-100 meters above sea level. Towards the south and west, the landscape becomes more dramatic as it meets the coastline. Here, you'll find a combination of sandy beaches, rocky cliffs, and small bays. The southern coast of Phillip Island is particularly known for its steep cliffs and rocky outcrops, which provide stunning views of Bass Strait.
Potential Areas for Large-Scale Solar PV
When considering areas nearby that would be most suited to large-scale solar photovoltaic (PV) installations, several factors come into play. The ideal location would have ample sunlight exposure, relatively flat terrain, and minimal environmental impact. The northern and eastern parts of Phillip Island, away from the immediate coastal areas, present the most promising locations for solar PV development. These inland areas offer several advantages: Firstly, they tend to have more consistent sunlight exposure throughout the day, as they are less affected by coastal weather patterns and sea breezes. The gently rolling hills in these areas can also be advantageous, as south-facing slopes (in the Southern Hemisphere) can maximize solar panel efficiency. Secondly, the agricultural land in these regions is generally flatter and more open, making it easier and more cost-effective to install large arrays of solar panels. The existing road infrastructure in these farming areas would also facilitate the construction and maintenance of solar facilities. Lastly, utilizing agricultural land for solar PV installations would likely have less environmental impact compared to developing coastal or more ecologically sensitive areas. Many of these inland areas have already been cleared for farming, so repurposing them for solar energy production would not significantly affect natural habitats. However, it's important to note that any large-scale solar development would need to carefully consider local zoning regulations, environmental impact assessments, and community concerns. The visual impact on the landscape and potential effects on local wildlife would also need to be thoroughly evaluated before proceeding with any major solar PV projects in the region.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: Wednesday 5th of March 2025
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.




