Quarry Bay, Eastern, Hong Kong, situated at 22.2902° N, 114.218° E, presents a favorable location for solar energy generation throughout the year. This tropical location benefits from consistent sunlight, with seasons primarily characterized by wet and dry periods rather than significant temperature variations.

Seasonal Solar Performance

Solar panel efficiency in Quarry Bay remains relatively stable across seasons. Summer yields the highest output at 5.52 kWh per day for each kilowatt of installed capacity. Spring follows closely with 5.40 kWh/day, while autumn produces 4.91 kWh/day. Winter, though slightly less productive, still maintains a respectable 4.35 kWh/day output. The minimal fluctuation between seasons indicates that Quarry Bay is well-suited for year-round solar energy production. The most ideal periods for generation are during the summer months and late spring when daylight hours are longer and solar intensity is at its peak.

Optimal Panel Installation

For fixed solar panel installations in Quarry Bay, Eastern, the ideal tilt angle to maximize year-round energy production is 20 degrees facing south. This angle optimizes the panels' exposure to sunlight throughout the year, accounting for the location's latitude and the Earth's orbit around the sun.

Environmental Considerations

While Quarry Bay's climate is generally conducive to solar energy production, there are some environmental factors to consider: 1. Typhoons: Hong Kong experiences typhoons, typically between May and November. These storms can potentially damage solar installations if not properly secured. 2. Air pollution: Being part of a densely populated urban area, Quarry Bay may experience periods of high air pollution, which can slightly reduce solar panel efficiency. To mitigate these factors, several preventative measures can be taken: - Use typhoon-resistant mounting systems and high-quality, durable panels designed to withstand strong winds. - Implement regular cleaning schedules to remove air pollution residue from panel surfaces. - Install microinverters or power optimizers to minimize the impact of partial shading from nearby buildings or temporary cloud cover. By addressing these considerations during installation and maintenance, solar energy systems in Quarry Bay can achieve optimal performance and longevity, making the most of the location's favorable solar conditions.

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 Quarry Bay

Seasonal solar PV output for Latitude: 22.2902, Longitude: 114.218 (Quarry Bay, 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 Quarry Bay, Hong Kong

To maximize your solar PV system's energy output in Quarry Bay, Hong Kong (Lat/Long 22.2902, 114.218) 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 Quarry Bay, 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 Quarry Bay, 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	27° 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 Quarry Bay, 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 Quarry Bay, 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 Quarry Bay, Hong Kong

Quarry Bay, located on the northeastern shore of Hong Kong Island, is characterized by a diverse and interesting topography. The area is nestled between Victoria Harbour to the north and steep, forested hills to the south. The coastline of Quarry Bay has been extensively reclaimed over the years, creating a flat, urban landscape along the waterfront. This area is densely populated with high-rise residential and commercial buildings, leaving little open space at sea level. As you move inland from the coast, the terrain begins to rise sharply. The southern part of Quarry Bay is dominated by the lush, green slopes of Mount Parker and its surrounding hills. These steep inclines are part of the larger Tai Tam Country Park, which covers much of the eastern portion of Hong Kong Island. The hillsides are mostly covered in dense subtropical vegetation, with some areas featuring exposed rocky outcrops.

Potential for Solar PV Installation

When considering areas nearby that would be most suited to large-scale solar PV installations, several factors come into play. The hilly terrain surrounding Quarry Bay presents both challenges and opportunities for solar energy development. The rooftops of the numerous high-rise buildings in Quarry Bay and neighboring areas like Taikoo Shing could potentially be utilized for solar panel installation. These flat surfaces receive ample sunlight and are already connected to the power grid, making them relatively easy to adapt for solar energy production. However, for truly large-scale solar PV projects, areas with more open space would be preferable. The nearby island of Tseung Kwan O, located to the east of Quarry Bay, has undergone significant land reclamation and features larger plots of undeveloped land. These areas could potentially accommodate more extensive solar farms. Another possibility, albeit more challenging, would be to consider the south-facing slopes of the hills surrounding Quarry Bay. While the steep terrain and dense vegetation present obstacles, carefully designed solar installations on these hillsides could potentially capture significant amounts of sunlight throughout the day. It's important to note that Hong Kong's limited land availability and dense urban development make large-scale solar projects challenging throughout the territory. Any significant solar PV installations would likely need to be integrated into existing structures or carefully planned to minimize impact on the natural environment and urban landscape.

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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.