Ma On Shan, Sha Tin, Hong Kong, situated at 22.3984°N, 114.2362°E, offers a promising location for solar PV energy generation throughout the year. Located in the tropics, this area experiences consistent sunlight and is characterized more by wet and dry seasons than traditional four-season cycles.

Seasonal Solar Performance

The solar energy output at Ma On Shan demonstrates a relatively stable pattern across seasons. Summer yields the highest production at 5.49 kWh per day for each kW of installed solar capacity. Spring follows closely with 5.40 kWh/day, while autumn generates 4.95 kWh/day. Even during winter, the output remains substantial at 4.40 kWh/day.

This consistent performance throughout the year makes Ma On Shan an ideal location for solar PV installations. The minimal fluctuation between seasons ensures a reliable energy supply, with peak production occurring during the longer, sunnier days of summer and spring.

Optimal Panel Positioning

To maximize year-round solar energy production in Ma On Shan, Sha Tin, fixed panels should be tilted at a 21-degree angle facing south. This optimal angle has been calculated considering the location's latitude, daily solar elevation angles, and weighted by NASA's solar irradiance data.

Environmental Considerations

While Ma On Shan's tropical climate is generally favorable for solar energy production, there are some environmental factors to consider:

• Typhoons: Hong Kong experiences typhoons, typically between May and November. Strong winds and heavy rainfall associated with these events can potentially damage solar installations.
• High humidity and air pollution: These factors can reduce solar panel efficiency by creating a film on the panels' surface.

To mitigate these challenges, it's crucial to use high-quality, weather-resistant solar panels and mounting systems designed to withstand typhoon-force winds. Regular cleaning and maintenance of the panels can help combat the effects of humidity and air pollution. Additionally, implementing a monitoring system can help quickly identify and address any performance issues.

Despite these considerations, Ma On Shan remains an excellent location for solar PV installations. Its consistent year-round sunlight and relatively high energy output across all seasons make it a prime candidate for sustainable energy production through solar power.

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 Ma On Shan

Seasonal solar PV output for Latitude: 22.3984, Longitude: 114.2362 (Ma On Shan, 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 Ma On Shan, Hong Kong

To maximize your solar PV system's energy output in Ma On Shan, Hong Kong (Lat/Long 22.3984, 114.2362) 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 Ma On Shan, 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 Ma On Shan, 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	38° 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 Ma On Shan, 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 Ma On Shan, 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 Ma On Shan, Hong Kong

Ma On Shan, located in the New Territories of Hong Kong, is characterized by a diverse and striking topography that combines mountainous terrain with coastal features. The area is dominated by the prominent Ma On Shan peak, which rises to an elevation of about 702 meters (2,303 feet) above sea level. This mountain is part of a larger range that extends across the eastern part of the New Territories, creating a rugged and scenic landscape. The western slopes of Ma On Shan gradually descend towards Tolo Harbour, offering panoramic views of the water and the surrounding areas. These slopes are generally steep and covered with dense vegetation, typical of Hong Kong's subtropical climate. As you move closer to the coast, the terrain becomes less severe, transitioning into gentler hills and eventually flatter areas near the shoreline. To the north and east of Ma On Shan peak, the landscape remains hilly and undulating, with numerous smaller peaks and valleys. This varied terrain is interspersed with streams and small rivers that have carved their way through the rocky landscape over time. The eastern side of Ma On Shan also features some flatter areas and plateaus, which have been developed for residential and commercial purposes.

Potential Areas for Large-scale Solar PV

When considering areas nearby Ma On Shan for large-scale solar photovoltaic (PV) installations, several factors need to be taken into account, including available space, sunlight exposure, and accessibility. Given the topographical constraints of the region, the most suitable areas for solar PV would likely be: 1. Reclaimed land near Tolo Harbour: The flatter areas along the coast, particularly those that have been reclaimed from the sea, could provide ample space for solar installations. These areas benefit from unobstructed sunlight and are generally easily accessible. 2. Plateaus and gentler slopes: Some of the less steep hillsides and plateau areas to the east and southeast of Ma On Shan peak could be potential sites for solar farms. These locations would need to be carefully selected to minimize environmental impact and ensure sufficient sun exposure throughout the day. 3. Brownfield sites: Any former industrial or developed areas in the vicinity that are no longer in use could be repurposed for solar energy production. These sites often have the advantage of existing infrastructure and relatively flat terrain. 4. Rooftops in urban areas: While not strictly "large-scale," the cumulative area of rooftops in the more densely populated parts of Ma On Shan and neighboring towns could provide significant space for distributed solar PV systems. It's important to note that Hong Kong's limited land availability and mountainous terrain pose challenges for large-scale solar installations. Any development would need to carefully balance energy production goals with environmental conservation and land use considerations.

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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.