Solar PV Analysis of Yau Ma Tei, Hong Kong
Yau Ma Tei, Yau Tsim Mong, Hong Kong has a fairly good year-round potential for generating solar power due to its location in the tropics where sunlight is consistent throughout most of the year. The amount of electricity that can be produced from each kilowatt (kW) of installed solar panels varies by season, with the highest output in summer at 5.49 kilowatt-hours (kWh) per day and lowest in winter at 4.40 kWh/day.
To maximize total annual production from solar panels at this location, they should ideally be tilted at an angle of 20 degrees facing south. This helps to capture more sunlight over the course of a day and across different seasons.
However, there might be certain local factors that could impede solar production at this location. For instance, Yau Ma Tei is known for its dense urban environment which means tall buildings might block sunlight reaching some installations. Also, like other parts of Hong Kong, it experiences typhoons which can damage panels or cause temporary dips in production due to cloud cover.
When installing solar panels here it would therefore be important to select a site with minimal shading from nearby structures and ensure they are robustly secured against high winds. Additionally maintaining them regularly will help ensure maximum efficiency – cleaning off any dust or debris that accumulates on them is particularly important as this can significantly reduce their power output.
Overall though these issues are manageable and given the relatively high levels of sunshine experienced here throughout much of the year Yau Ma Tei could certainly make good use out of solar energy systems.
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 Yau Ma Tei
Seasonal solar PV output for Latitude: 22.3151, Longitude: 114.1743 (Yau Ma Tei, 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 20° South in Yau Ma Tei, Hong Kong
To maximize your solar PV system's energy output in Yau Ma Tei, Hong Kong (Lat/Long 22.3151, 114.1743) throughout the year, you should tilt your panels at an angle of 20° 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 Yau Ma Tei, 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 Yau Ma Tei, Hong Kong. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 20° 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 Yau Ma Tei, 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 Yau Ma Tei, 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 Yau Ma Tei, Hong Kong
Yau Ma Tei is located in the urban area of Kowloon, Hong Kong. The topography of this area is predominantly flat with some small hills, and it's densely populated with high-rise buildings.
Given this environment, the most suitable places for large-scale solar PV installations would likely be on rooftops or integrated into building designs (Building-integrated photovoltaics - BIPV). This could include commercial buildings, residential apartment blocks, and public infrastructure facilities like train stations or airports.
However, if you're considering ground-mounted solar farms which require larger tracts of open land with direct sunlight exposure throughout the day, then areas outside Yau Ma Tei would be more suitable. These might include less densely populated regions such as New Territories or outlying islands where there may be more available land.
In any case, a detailed feasibility study considering factors like sun path analysis (solar irradiance), local regulations about renewable energy installations etc., will need to be conducted to identify optimal sites for large-scale solar PV installations.
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Wednesday 5th of June 2024
Last Updated: Monday 21st of July 2025
Tell Us About Your Work
We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.
Feeling generous?
Share this with your friends!
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.
