Bayan Lepas, Penang, Malaysia is a pretty good spot for year-round solar power generation. This is because it's located in the tropics where there's plenty of sunlight throughout most of the year. The amount of electricity you can expect to get from each kilowatt (kW) of installed solar panels varies slightly with the seasons: 5.44 kWh/day in summer, 5.19 kWh/day in autumn, 5.75 kWh/day in winter and 5.95 kWh/day in spring.
The best time to generate solar energy at this location would be during spring and winter when the output per kW is highest at around 6kWh per day; however, even during summer and autumn, the output remains quite high making Bayan Lepas suitable for consistent energy production all year round.
If you're installing fixed panel solar systems here, tilting them at an angle of about 5 degrees towards south will help maximize your total yearly energy production.
However, there might be some challenges that could affect your solar power generation here as well:
1) Rainy Season: In tropical regions like Bayan Lepas, Penang, rain can be heavy especially during monsoon season which might affect sunlight availability and hence reduce power generation temporarily.
Preventive Measures: Using high-quality panels with excellent performance under low light conditions can help ensure better productivity even on cloudy days.
2) Heat & Humidity: High temperatures coupled with humidity can decrease efficiency of solar panels over time.
Preventive Measures: Regular maintenance checks are necessary to keep your system running efficiently despite these conditions. Using cooling mechanisms or materials that can withstand local weather conditions may also enhance longevity and efficiency.
3) Dust & Debris Accumulation: Frequent dust storms or debris from surrounding trees could block sunlight reaching your panels reducing their effectiveness.
Preventive Measures: Regular cleaning routines should prevent this problem but consider if nearby trees need trimming to avoid shade or falling leaves.
In summary, Bayan Lepas is a good location for solar power generation throughout the year, but you may need to take some extra steps to ensure your system performs optimally due to local weather 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 77 locations across Malaysia. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Malaysia by location
Solar output per kW of installed solar PV by season in Bayan Lepas
Seasonal solar PV output for Latitude: 5.329, Longitude: 100.292 (Bayan Lepas, Malaysia), 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 5° South in Bayan Lepas, Malaysia
To maximize your solar PV system's energy output in Bayan Lepas, Malaysia (Lat/Long 5.329, 100.292) throughout the year, you should tilt your panels at an angle of 5° 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 Bayan Lepas, Malaysia
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 Bayan Lepas, Malaysia. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 5° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 11° North in Summer | 11° South in Autumn | 20° South in Winter | 1° North 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 Bayan Lepas, Malaysia
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 Bayan Lepas, Malaysia.
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 Bayan Lepas, Malaysia
Bayan Lepas is located in the southeast part of Penang Island, Malaysia. The region's topography is a mix of coastal plains and hilly terrains with some flat lands. It has an elevation ranging from sea level to about 250 meters above sea level.
For large-scale solar PV installations, areas with relatively flat terrain would be more suitable as it reduces installation complexity and cost. In the Bayan Lepas area, these could include the coastal plain regions or cleared flat lands.
However, other factors such as sunlight exposure (solar irradiance), land use regulations, proximity to power grids for electricity transmission also need to be considered when deciding on locations for large-scale solar PV projects.
As per Malaysia's tropical climate, Bayan Lepas receives a good amount of sunshine throughout the year which makes it generally suitable for solar energy production. However specific site assessments would still need to be done to identify most suited locations.
Please note that while physical suitability is one aspect, regulatory permissions and environmental impact assessments are crucial before setting up any large scale renewable energy installations.
Malaysia solar PV Stats as a country
Malaysia ranks 33rd in the world for cumulative solar PV capacity, with 1,787 total MW's of solar PV installed. This means that 2.40% of Malaysia's total energy as a country comes from solar PV (that's 32nd in the world). Each year Malaysia is generating 55 Watts from solar PV per capita (Malaysia ranks 51st in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Malaysia?
Yes, there are several incentives for businesses wanting to install solar energy in Malaysia. The Malaysian government offers a range of financial incentives and tax breaks for businesses that invest in renewable energy projects. These include the Renewable Energy Fund (REF), which provides grants and loans to support the development of renewable energy projects; the Green Technology Financing Scheme (GTFS), which provides financing for green technology investments; and the Feed-in Tariff (FiT) scheme, which guarantees a fixed price for electricity generated from renewable sources. Additionally, businesses may be eligible for capital allowances on their investments in solar energy systems.
Do you have more up to date information than this on incentives towards solar PV projects in Malaysia? Please reach out to us and help us keep this information current. Thanks!
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Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 24th of March 2024
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.
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.




