Kluang, Johor, Malaysia is a great location for generating solar energy all year round because it's located in the Tropics where there's consistent sunlight throughout most of the year. The seasons here are more about wet and dry periods rather than major temperature changes.
To understand how much energy can be produced from solar panels, we look at the average electricity output per kilowatt (kW) of installed solar panels. In Kluang, Johor, you can expect to generate around 4.77 kilowatt-hours (kWh) every day in summer for each kW of solar panel installed. In autumn, this figure slightly increases to 5.08 kWh/day; in winter it's about 5.01 kWh/day; and in spring it jumps up to 5.41 kWh/day.
This means that even during summer which has the lowest output, you still get quite a good amount of electricity from your solar panels. But if you want to make the most out of your installation, spring would be the best time as it offers higher daily outputs.
When installing solar panels at this location though, they should ideally be tilted at an angle facing 2 degrees South for maximum yearly production.
However, there could be some challenges related to environmental or weather conditions that might affect your system’s performance such as heavy rainfall during wet seasons which could dirty or damage your panels reducing their efficiency; high humidity levels which may cause condensation leading to potential corrosion over time; and tree shadows or buildings blocking sunlight exposure on your panels among others.
To overcome these issues: regular cleaning especially after heavy rainfalls can help keep them working efficiently; using materials resistant to corrosion can reduce damage due to humidity; while careful positioning away from shade sources like trees and buildings will ensure maximum sunlight exposure on your system ensuring optimal performance all year round.
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 Kluang
Seasonal solar PV output for Latitude: 1.9226, Longitude: 103.4038 (Kluang, 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 2° South in Kluang, Malaysia
To maximize your solar PV system's energy output in Kluang, Malaysia (Lat/Long 1.9226, 103.4038) throughout the year, you should tilt your panels at an angle of 2° 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 Kluang, 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 Kluang, Malaysia. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 2° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 14° North in Summer | 8° South in Autumn | 17° South in Winter | 4° 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 Kluang, 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 Kluang, 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 Kluang, Malaysia
Kluang is located in the southern part of Peninsular Malaysia, within the state of Johor. The topography of Kluang consists primarily of flat plains, with some hilly areas to the east and west. The region is largely agricultural, with significant areas devoted to palm oil plantations.
Given this topography, large-scale solar PV installations would be most suitable in flat open spaces or on land that has been cleared for agriculture but is not currently productive. The vast palm oil plantations could also potentially host solar panels if they are designed not to interfere with the growth and harvesting of the palms.
However, it's important to consider other factors beyond just topography when planning a large-scale solar installation. These may include local weather patterns (particularly cloud cover), availability of infrastructure for transmitting electricity from the site, potential environmental impacts and local land use regulations among others.
A detailed feasibility study would be required before any specific sites could be identified as being particularly well-suited for a large-scale 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!
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 28th of May 2024
Last Updated: Monday 21st of July 2025
Tell Us About Your Work
We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.
Feeling generous?
Share this with your friends!

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.




