Solar PV Analysis of Ha Kwai Chung, Hong Kong
Ha Kwai Chung, Kwai Tsing, Hong Kong is a pretty good location for generating solar power throughout the year. This is because it's in the tropics, where sunlight is fairly consistent all year round. The seasons here are typically classified by wet and dry periods rather than significant temperature changes.
In terms of how much energy you can expect to generate from solar panels at this location, it varies slightly across seasons but remains relatively high. For every kilowatt (kW) of installed solar capacity, you can expect to produce about 5.49 kilowatt-hours (kWh) per day in summer, 4.95 kWh/day in autumn, 4.40 kWh/day in winter and 5.40 kWh/day in spring.
The best times of year to generate solar energy at this location are during the spring and summer when daily output reaches its peak levels due to longer daylight hours.
To maximize total yearly production from your solar panels at this site, they should be installed with a tilt angle facing 21 degrees South. This will ensure they're positioned optimally towards the sun for most of the year.
There may be some local factors that could potentially hinder solar production though - weather conditions being one key consideration given that Ha Kwai Chung experiences both wet and dry seasons throughout the year.
During rainy or cloudy days there will likely be less sunlight available for your panels to convert into electricity which could reduce their efficiency somewhat during these periods compared with sunny days when maximum output would be expected.
However, as long as such weather patterns aren't overly persistent or extreme then they shouldn't significantly impact overall annual productivity since sunlight availability remains quite consistent across most months here despite occasional fluctuations on a day-to-day basis due to changing weather conditions.
To mitigate against potential impacts from such environmental factors though - regular maintenance checks should be carried out on your installation including cleaning any accumulated dust or debris off panel surfaces which can also affect their performance over time.
In conclusion, Ha Kwai Chung is a suitable location for solar energy generation with high potential output throughout the year. Regular maintenance and optimal panel positioning can further improve productivity and ensure your installation remains efficient despite any local weather variations.
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 Ha Kwai Chung
Seasonal solar PV output for Latitude: 22.3539, Longitude: 114.1342 (Ha Kwai Chung, 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 Ha Kwai Chung, Hong Kong
To maximize your solar PV system's energy output in Ha Kwai Chung, Hong Kong (Lat/Long 22.3539, 114.1342) 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 Ha Kwai Chung, 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 Ha Kwai Chung, 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 | 37° 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 Ha Kwai Chung, 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 Ha Kwai Chung, 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 Ha Kwai Chung, Hong Kong
Ha Kwai Chung is located in the New Territories region of Hong Kong, which is known for its hilly and mountainous terrains. The area around Ha Kwai Chung has a mix of urban development and green spaces, with hills largely covered by vegetation.
For large-scale solar PV installations, flat or gently sloping land is preferred to minimize installation costs and maximize the efficiency of the panels. Given this requirement, urban areas like rooftops of buildings in industrial estates or residential complexes could be suitable for solar panel installation.
Moreover, Hong Kong's government has been encouraging floating solar systems on reservoirs to avoid using valuable land resources. Areas near bodies of water such as Tsing Yi Bay might also be potential sites for such projects.
However, it's important to note that any proposal would need thorough feasibility studies considering factors like sun exposure throughout the year (affected by surrounding buildings or mountains), local regulations regarding renewable energy installations etc., before proceeding with actual deployment.
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Friday 5th 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.
