Hung Hom, Kowloon City, located in Hong Kong, presents a favorable location for solar energy generation throughout the year. Situated in the tropics, this area benefits from consistent sunlight and experiences seasons characterized more by wet and dry periods rather than traditional temperature-based seasons.

Seasonal Solar Output

The solar energy production in Hung Hom varies slightly across the meteorological seasons. Summer yields the highest output at 5.49 kWh per day for each kilowatt of installed solar capacity. Spring follows closely with 5.40 kWh/day, while autumn produces 4.95 kWh/day. Winter, although slightly lower, still maintains a respectable 4.40 kWh/day output.

These figures indicate that Hung Hom is an excellent location for year-round solar energy generation. The relatively small variation between seasons suggests consistent performance throughout the year, with summer and spring being particularly productive periods.

Optimal Panel Installation

For fixed panel installations in Hung Hom, Kowloon City, the ideal tilt angle to maximize year-round solar production is 20 degrees facing South. This angle has been calculated taking into account the location's latitude, daily solar elevation angles, and potential PV output based on NASA's solar irradiance data.

Environmental Considerations

While Hung Hom's tropical climate is generally conducive to solar energy production, there are some environmental factors to consider. The region experiences a monsoon season, typically from May to September, which can bring heavy rainfall and increased cloud cover. This may temporarily reduce solar output during these months.

Additionally, Hong Kong occasionally faces typhoons, which could potentially damage solar installations if not properly secured. To mitigate these risks, it's crucial to use high-quality, weather-resistant solar panels and mounting systems designed to withstand strong winds and heavy rain.

Air pollution, particularly from nearby industrial areas and urban emissions, can sometimes impact solar efficiency by reducing the amount of sunlight reaching the panels. Regular cleaning and maintenance of solar panels can help offset this issue and maintain optimal performance.

Despite these challenges, with proper installation techniques and regular maintenance, Hung Hom remains an ideal location for solar energy production throughout the year.

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 Hung Hom

Seasonal solar PV output for Latitude: 22.3162, Longitude: 114.1842 (Hung Hom, 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 Hung Hom, Hong Kong

To maximize your solar PV system's energy output in Hung Hom, Hong Kong (Lat/Long 22.3162, 114.1842) 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 Hung Hom, 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 Hung Hom, 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 Hung Hom, 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 Hung Hom, Hong Kong.

Our calculation method

1. Solar Position:
   We determine the Sun's position on the Winter solstice using the location's latitude and solar declination.
2. Shadow Projection:
   We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle.
3. 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 Hung Hom, Hong Kong

Hung Hom, located in the Kowloon Peninsula of Hong Kong, is characterized by a diverse topography that reflects the city's unique blend of urban development and natural features. The area is primarily flat near the coastline, with much of the land reclaimed from Victoria Harbour over the years. This relatively level terrain gradually gives way to more elevated areas as one moves inland. To the north and northwest of Hung Hom, the landscape begins to rise, forming a series of low hills and ridges. These elevations, while not particularly steep, provide a noticeable contrast to the flatter coastal areas. The most prominent of these is Beacon Hill, which reaches a height of about 457 meters (1,499 feet) and is located a few kilometers to the north.

Urban Development and Topography

The topography of Hung Hom has been significantly altered by human activity. Extensive land reclamation projects have expanded the coastline, creating new flat areas for development. The urban landscape is dominated by high-rise buildings, roads, and infrastructure, which have been built to accommodate the dense population of this part of Hong Kong. Despite the urban nature of Hung Hom, there are still some green spaces and parks that provide relief from the concrete jungle. These areas often preserve some of the original topographical features, offering glimpses of the natural landscape that once dominated the region.

Potential for Solar PV Installation

When considering areas nearby that would be most suited to large-scale solar PV installations, several factors must be taken into account. The ideal location would have ample open space, minimal shading from buildings or natural features, and good exposure to sunlight throughout the day. Given the dense urban development in and around Hung Hom, finding suitable large-scale sites for solar PV within the immediate vicinity may be challenging. However, some potential areas that could be considered include: 1. Rooftops of large industrial buildings or warehouses in the nearby Kwun Tong or Kowloon Bay areas. These flat, expansive roofs could provide significant space for solar panel installation. 2. Reclaimed land areas that have not yet been fully developed, such as parts of the former Kai Tak Airport site to the northeast of Hung Hom. 3. The slopes of some of the less developed hills to the north, although careful consideration would need to be given to environmental impact and land stability. 4. Large transportation hubs or depots, such as the area around Hung Hom Station or the Cross-Harbour Tunnel facilities, which might have suitable roof space or adjacent land. It's important to note that while these areas might have potential, any large-scale solar PV project in Hong Kong would face significant challenges due to the scarcity of land and the competing demands for space in this densely populated city. Creative solutions, such as integrating solar panels into building facades or over highways, might need to be explored to maximize solar energy potential in the urban environment of Hung Hom and its surroundings.

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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.