Klang, Selangor, Malaysia is a great place for generating solar energy all year round due to its location in the Tropics. This area gets steady sunlight throughout most of the year, making it ideal for solar power generation. The amount of electricity produced per kilowatt (kW) of installed solar panels remains fairly consistent across all seasons: 5.39 kilowatt-hours (kWh) per day in Summer and Autumn, 5.26 kWh/day in Winter, and 5.44 kWh/day in Spring.
The best time to generate solar energy at this location would be during Summer and Spring when the average daily output is slightly higher than other seasons.
For fixed panel installations here, tilting the panels at an angle of 3 degrees towards the South will help maximize their total production from sunlight over the course of a year.
However, there might be some local factors that could affect solar production at this location. For instance, Klang's tropical climate also means that it experiences wet and dry seasons which could impact on how much sunlight reaches your panels - heavy rainfall or cloud cover during wet season can reduce their efficiency.
One way to mitigate these potential issues is by installing tracking systems on your panels so they can follow the sun’s path across the sky; this ensures they receive maximum exposure even on less sunny days. Regular cleaning and maintenance are also important as dust or debris left on your panels can block sunlight too.
In conclusion, Klang's geographical position makes it an excellent place for harnessing solar energy throughout most parts of the year with only minor adjustments needed to deal with occasional weather-related challenges.
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 Klang
Seasonal solar PV output for Latitude: 3.066, Longitude: 101.4866 (Klang, 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 3° South in Klang, Malaysia
To maximize your solar PV system's energy output in Klang, Malaysia (Lat/Long 3.066, 101.4866) throughout the year, you should tilt your panels at an angle of 3° 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 Klang, 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 Klang, Malaysia. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 3° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 13° North in Summer | 9° South in Autumn | 18° South in Winter | 3° 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 Klang, 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 Klang, 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 Klang, Malaysia
Klang, Malaysia is located in a coastal area on the western part of Peninsular Malaysia. It is relatively flat with minor hills and lowlands. The region is surrounded by the Klang River which flows into the Strait of Malacca.
The topography around Klang makes it suitable for large-scale solar PV installations due to its flat landscape and abundant sunlight throughout the year. However, factors such as land availability, proximity to transmission lines, environmental impact and local regulations should also be taken into account when considering large-scale solar PV projects.
Potential suitable areas nearby could include:
1. Unused or underutilized agricultural lands: These can be converted into solar farms without significant impacts on local ecosystems or food production.
2. Industrial zones: Rooftops of factories and warehouses offer large spaces that are often unobstructed by shading.
3. Brownfield sites: Former industrial or commercial sites that are abandoned or underused can be repurposed for renewable energy generation.
However, detailed feasibility studies would need to be conducted before any specific site could be identified as most suited for large-scale solar PV installation.
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: Monday 3rd of June 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.




