Solar PV Analysis of Papakura, New Zealand
Papakura, Auckland, New Zealand, located in the Southern Temperate Zone, offers a moderate potential for solar energy generation throughout the year. The location's solar energy production varies significantly across seasons, with peak performance during summer months.
Seasonal Solar Output
Solar panel efficiency in Papakura fluctuates considerably throughout the year: • Summer: 7.51 kWh/day per kW installed • Spring: 5.84 kWh/day per kW installed • Autumn: 3.97 kWh/day per kW installed • Winter: 2.66 kWh/day per kW installed These figures indicate that summer and spring are the most productive seasons for solar energy generation in Papakura.
Optimal Panel Positioning
For fixed panel installations in Papakura, Auckland, the ideal tilt angle to maximize year-round solar production is 32 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 Considerations
While Papakura's climate is generally favorable for solar energy production, there are some factors that could potentially impact efficiency: 1. Cloud cover: New Zealand's weather can be unpredictable, with frequent cloud cover potentially reducing solar output. 2. Rainfall: Papakura experiences moderate rainfall, which may temporarily decrease panel efficiency. To mitigate these issues, consider installing high-quality, weather-resistant panels and implementing regular cleaning routines to maintain optimal performance.
Conclusion
Overall, Papakura's location offers a reasonable opportunity for solar energy generation, particularly during summer and spring. While winter months see a significant drop in output, the annual average remains suitable for residential and commercial solar installations. By optimizing panel placement and addressing potential environmental factors, solar energy can be a viable and sustainable option for Papakura residents.
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 105 locations across New Zealand. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in New Zealand by location
Solar output per kW of installed solar PV by season in Papakura
Seasonal solar PV output for Latitude: -37.0625, Longitude: 174.9322 (Papakura, New Zealand), 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 32° North in Papakura, New Zealand
To maximize your solar PV system's energy output in Papakura, New Zealand (Lat/Long -37.0625, 174.9322) throughout the year, you should tilt your panels at an angle of 32° 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 Papakura, New Zealand
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 Papakura, New Zealand. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 32° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 21° North in Summer | 42° North in Autumn | 52° North in Winter | 30° 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 Papakura, New Zealand
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 Papakura, New Zealand.
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 Papakura, New Zealand
The area around Papakura, New Zealand, is characterized by a diverse and gently undulating landscape. Located in the southern part of the Auckland region, Papakura sits on the edge of a relatively flat coastal plain that gradually transitions into rolling hills as you move inland.
To the west of Papakura, you'll find the Manukau Harbour, a large and shallow body of water that forms part of Auckland's coastline. The land near the harbor is predominantly low-lying and flat, with some areas of reclaimed land and wetlands.
Moving eastward from Papakura, the terrain becomes more varied. The landscape begins to rise, forming a series of gentle hills and valleys. This area is part of the Hunua Ranges, a significant forested area that serves as a water catchment for Auckland. The Hunua Ranges feature steeper slopes, native bush, and several streams and rivers.
To the north and south of Papakura, the land is a mix of flat to gently rolling terrain, much of which has been developed for residential, commercial, and agricultural purposes. You'll find a patchwork of urban areas, lifestyle blocks, and farmland in these directions.
Areas Suitable for Large-scale Solar PV
When considering locations for large-scale solar PV installations near Papakura, several factors come into play. The ideal areas would have the following characteristics:
1. Flat or gently sloping land: The areas to the west and northwest of Papakura, towards the Manukau Harbour, would be well-suited due to their relatively flat terrain. These areas would require minimal land preparation and would receive consistent sunlight throughout the day.
2. Open spaces with minimal shading: Agricultural land to the south and southeast of Papakura could be potential candidates. These areas often have large, open fields with few tall structures or trees that could cast shadows on solar panels.
3. Proximity to existing infrastructure: Areas close to Papakura itself or other nearby towns would be advantageous, as they would likely have easier access to the electrical grid and transportation networks.
4. Land with lower agricultural or ecological value: While much of the land around Papakura is used for farming, some less productive areas might be suitable for solar installations without significantly impacting food production.
It's important to note that any large-scale solar PV project would require detailed site-specific assessments, including solar radiation studies, environmental impact evaluations, and consultation with local authorities and communities. The hilly areas to the east, while potentially suitable for smaller installations, might be less ideal for large-scale projects due to the more complex terrain and potential shading issues.
New Zealand solar PV Stats as a country
New Zealand ranks 78th in the world for cumulative solar PV capacity, with 146 total MW's of solar PV installed. Each year New Zealand is generating 29 Watts from solar PV per capita (New Zealand ranks 58th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in New Zealand?
Yes, there are several incentives for businesses wanting to install solar energy in New Zealand. The government offers a range of grants and subsidies to help businesses reduce their energy costs and increase their use of renewable energy sources. These include the Solar PV Grant Scheme, which provides up to $20,000 per installation towards the cost of installing solar photovoltaic (PV) systems; the Low Emission Vehicles Contestable Fund, which provides funding for electric vehicles; and the Energy Efficiency and Conservation Authority’s Business Energy Management Programme, which helps businesses identify ways to save money on their energy bills. Additionally, some local councils offer rates rebates or other incentives for businesses that install solar panels.
Do you have more up to date information than this on incentives towards solar PV projects in New Zealand? Please reach out to us and help us keep this information current. Thanks!
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 13th of August 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.
