Solar PV Analysis of Central, Hong Kong
The location in Central, Hong Kong (latitude: 22.2908, longitude: 114.1501) is well-suited for generating solar PV power due to its consistent sunlight throughout the year. The average daily energy production per kW of installed solar capacity varies by season, with 5.49 kWh/day in Summer, 4.95 kWh/day in Autumn, 4.40 kWh/day in Winter, and 5.40 kWh/day in Spring. This indicates that slightly more solar energy can be generated during summer and spring months compared to autumn and winter months due to increased sunlight availability.
However, this location lies within the tropics where seasons are typically characterized by wet and dry periods which could impact solar power generation as heavy rain or strong winds may reduce the amount of available sunlight on some days or weeks at a time. Additionally, high humidity levels can also decrease the efficiency of photovoltaic cells resulting in lower amounts of electricity being produced from a given area than expected under normal conditions.
To optimize energy production at this location, it is recommended to tilt panels at an angle of 20 degrees facing southward for maximum sun exposure throughout the year.
In terms of topographical factors or extreme weather events that could impede solar production at this location, Hong Kong is known for occasional typhoons which may cause damage to solar installations if not properly secured and protected against such events. To ensure greater energy production and minimize potential damages from these factors, it is essential to invest in robust mounting systems designed specifically for high-wind areas and consider incorporating protective measures such as wind barriers when installing solar panels.
Overall, Central Hong Kong's consistent sunshine makes it a suitable location for generating solar power year-round; however, local factors like seasonal variations in sunlight availability and potential extreme weather events should be taken into account when designing and installing a solar system to maximize efficiency and durability 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 Central
Seasonal solar PV output for Latitude: 22.2908, Longitude: 114.1501 (Central, 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 Central, Hong Kong
To maximize your solar PV system's energy output in Central, Hong Kong (Lat/Long 22.2908, 114.1501) 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 Central, 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 Central, 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 Central, 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 Central, 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 Central, Hong Kong
The topography around Central, Hong Kong is generally flat and low-lying with some hills to the south and east. The nearby areas that would be most suited for large-scale solar PV installations are those with unobstructed access to direct sunlight throughout the day, such as rooftops or open fields. Additionally, any areas near water bodies—such as reservoirs—could also provide ideal conditions for solar energy production.
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Wednesday 3rd of August 2022
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.
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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.
