Solar PV Analysis of Foxton, New Zealand
Foxton, New Zealand is a decent location for generating solar energy year-round, but it's not perfect. If you install a solar panel system here, you can expect to produce the most electricity in summer and spring, when the days are longer and there's more sunlight. Specifically, in summer you could generate about 7.02 kilowatt-hours (kWh) of electricity per day for every kilowatt (kW) of solar panels installed. In spring, this drops slightly to about 5.36 kWh/day per kW.
On the other hand, during autumn and winter—when days are shorter—you'll see less production from your panels: around 3.62 kWh/day per kW in autumn and just 2.29 kWh/day per kW in winter.
To get the most out of your solar panels throughout the year at this location, they should be tilted at an angle of 35 degrees facing north.
However, local factors may affect how much energy your solar panels can produce here at Foxton:
1) Weather: Frequent cloudy or rainy days would reduce sunlight exposure on your panels.
2) Environment: Nearby tall buildings or trees that cast shadows on your panel can also decrease their efficiency.
3) Dust and Debris: Accumulation over time may prevent sunlight from reaching the cells.
To mitigate these issues:
1) Regular maintenance including cleaning will ensure maximum light absorption.
2) Consider trimming tree branches that might overshadow your installation.
3) Installations should ideally be placed where obstructions like buildings won't block sun exposure.
In summary; while Foxton isn't an ideal place for year-round high output from PV Solar due to shorter daylight hours during Autumn/Winter seasons - with correct installation orientation and regular maintenance it could still prove beneficial as a source of renewable energy generation overall across varying seasons.
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 Foxton
Seasonal solar PV output for Latitude: -40.4662, Longitude: 175.2986 (Foxton, 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 35° North in Foxton, New Zealand
To maximize your solar PV system's energy output in Foxton, New Zealand (Lat/Long -40.4662, 175.2986) throughout the year, you should tilt your panels at an angle of 35° 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 Foxton, 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 Foxton, New Zealand. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 35° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 25° North in Summer | 45° North in Autumn | 55° North in Winter | 33° 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 Foxton, 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 Foxton, 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 Foxton, New Zealand
Foxton, New Zealand is located on the lower west coast of the North Island. The area is largely flat with a mix of residential, commercial and agricultural land use. It lies near the Manawatu River and close to coastal areas.
The topography around Foxton makes it suitable for large-scale solar PV installations given its relatively flat terrain which would allow for easy installation of solar panels. Furthermore, this region receives an ample amount of sunlight throughout the year which would maximize energy production from these panels.
Areas most suited to largescale solar PV in proximity to Foxton could include:
1) Agricultural lands: Many farms have large unused areas that can be used for setting up solar panels without affecting farming activities.
2) Coastal regions: These regions usually receive high amounts of sunlight making them ideal locations.
3) Industrial zones: Large industrial sites often have unused land or rooftops that can accommodate large-scale solar installations.
However, it's important to note that factors such as local climate conditions (like cloud cover), soil stability, access to transmission lines and local regulations also play crucial roles in determining suitability for large-scale solar installations. Therefore, a detailed feasibility study considering all these aspects should be conducted before deciding on specific locations.
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: Wednesday 24th of April 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.
