Solar PV Analysis of Tai Po, Hong Kong
Tai Po, Hong Kong has a generally favorable environment for year-round solar energy generation. This is due to its tropical climate where sunlight remains consistent throughout most of the year. However, there are some seasonal variations in the potential electricity output from solar panels.
In summer and spring, you can expect higher electricity output at 5.49kWh/day and 5.40kWh/day respectively per kW of installed solar panel. During autumn and winter, the yield is slightly lower at 4.95kWh/day and 4.40kWh/day respectively per kW of installed solar panel.
So while all seasons provide decent energy production potential from solar panels in Tai Po, Hong Kong - summer and spring are more ideal times of the year for generating more energy via this method due to their higher daily output levels.
For fixed panel installations here it's best to tilt your panels at an angle of 21 degrees facing South to maximize total annual production from your photovoltaic (PV) system.
As far as environmental or local factors that could potentially hinder solar production in this location; The region does have a rainy season which may reduce sunlight exposure on certain days thereby reducing power generation capacity during those periods but overall impact should not be significant given that majority part of the year receives ample sunlight.
To mitigate these effects when installing your PV system; You can consider using PV modules with better performance under low light conditions or even bifacial modules which can capture light reflected off surfaces below them as well as direct sunlight hitting their front side thus improving overall efficiency even during less sunny periods like rainy season.
Also regular maintenance such as cleaning off any dust or debris on your panels will help ensure they continue working efficiently by allowing maximum possible sunlight exposure on them hence increasing their power generation capacity over time.
Note: The Tropics are located between 23.5° North and -23.5° South of the equator.
So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 47 locations across Hong Kong. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Hong Kong by location
Solar output per kW of installed solar PV by season in Tai Po
Seasonal solar PV output for Latitude: 22.4504, Longitude: 114.1657 (Tai Po, Hong Kong), 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 21° South in Tai Po, Hong Kong
To maximize your solar PV system's energy output in Tai Po, Hong Kong (Lat/Long 22.4504, 114.1657) throughout the year, you should tilt your panels at an angle of 21° South 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 Tai Po, Hong Kong
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 Tai Po, Hong Kong. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 21° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 6° South in Summer | 28° South in Autumn | 38° South in Winter | 15° South 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 Tai Po, Hong Kong
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 Tai Po, Hong Kong.
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 Tai Po, Hong Kong
Tai Po is located in the northeastern part of Hong Kong's New Territories. It is surrounded by hills and mountains, with the Tai Mo Shan mountain (the highest peak in Hong Kong) to its west and Tolo Harbour to its east. The region has a mix of urban areas, rural villages, industrial estates, and natural landscapes.
As for solar PV installation potential, it would depend on several factors such as land availability, sunlight exposure (solar irradiance), local regulations among others. Given the hilly terrain around Tai Po, flat spaces like rooftops of buildings in urban or industrial areas could be suitable for installing solar panels. Open lands or fields in rural parts may also be considered if they are not used for agriculture or conservation purposes.
Moreover, places near water bodies like Tolo Harbour can have an advantage due to increased sun reflection which might enhance solar panel efficiency but feasibility studies would need to be conducted.
However specific site surveys and assessments will be necessary before deciding on any location for large-scale solar PV installations given various practical considerations including grid connectivity infrastructure as well.
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 22nd 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.
