The location at Ho Man Tin, Kowloon City, Hong Kong, is generally good for generating solar energy throughout the year. This is because it's located in the Tropics where sunlight exposure remains fairly consistent all year round. The amount of electricity that can be produced from each kilowatt (kW) of installed solar panels varies a little with the seasons: you can expect to generate about 5.49 kilowatt hours (kWh) per day in Summer, 4.95 kWh/day in Autumn, 4.40 kWh/day in Winter and 5.40 kWh/day in Spring.

This means that summer and spring are slightly better times for producing solar energy compared to autumn and winter due to longer daylight hours and more direct sunlight angle during these periods.

For a fixed panel installation at this location, tilting panels at an angle of 20 degrees towards South will maximize total yearly production from your solar system as this position captures most sun rays over different seasons.

However, there might be some local factors that could affect your solar power generation like tall buildings or trees blocking the panels from receiving direct sunlight or pollution causing haze which reduces light intensity reaching your panels; also heavy rainfall associated with wet season may reduce daily production but won't significantly impact yearly output as rain helps clean dust off the panels resulting into better efficiency.

To prevent such issues affecting your energy production significantly you should ensure clear access to sunlight when installing your system by considering nearby objects that could cast shadows on it now or future; regular cleaning of panel surface would help maintain their efficiency especially during dry season when dust accumulation might be higher; having a good drainage system around installation area would protect against potential water damage during wet season.

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 Ho Man Tin

Seasonal solar PV output for Latitude: 22.3163, Longitude: 114.1842 (Ho Man Tin, 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:

Average 5.49kWh/day in Summer.

Average 4.95kWh/day in Autumn.

Average 4.40kWh/day in Winter.

Average 5.40kWh/day in Spring.

Ideally tilt fixed solar panels 20° South in Ho Man Tin, Hong Kong

To maximize your solar PV system's energy output in Ho Man Tin, Hong Kong (Lat/Long 22.3163, 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.

At Latitude: 22.3163, Longitude: 114.1842, the ideal angle to tilt panels is 20° South

Seasonally adjusted solar panel tilt angles for Ho Man Tin, 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 Ho Man Tin, Hong Kong. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 20° South tilt angle throughout the year.

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 Ho Man Tin, 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 Ho Man Tin, 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 Ho Man Tin, Hong Kong

Ho Man Tin is located in the Kowloon area of Hong Kong. It is a predominantly urban and residential area with high-rise buildings, roads, and some park areas. The topography of Ho Man Tin is relatively hilly, which is characteristic of much of Hong Kong.

In terms of solar PV installations, flat or gently sloping surfaces are generally best suited as they can maximize exposure to sunlight. Given the dense urban environment in Ho Man Tin, rooftops of large buildings could be potential locations for installing solar panels. Public facilities such as schools or government buildings usually have larger roof areas that can accommodate more solar panels.

However, considering the geographical location and climate conditions in Hong Kong (high humidity and frequent cloud cover), it may not be ideal for large-scale solar power generation compared to other regions with more sunshine hours per year.

For larger scale solar PV projects outside the city center, less densely populated areas like New Territories might be better suited due to availability of open land spaces there.

Please note that feasibility also depends on many factors beyond just topography – including local regulations about renewable energy installations, cost and availability of necessary infrastructure etc., so professional site assessment would be needed before any decision.

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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.

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