Solar PV Analysis of Rawang, Malaysia
Rawang, Selangor, Malaysia is a great place for solar energy production all year round due to its tropical climate. It's located near the equator where sunlight is plentiful and consistent throughout most of the year. The seasons are mostly characterized by wet and dry periods rather than big temperature changes like in other parts of the world.
The amount of electricity you can expect to generate from each kilowatt (kW) of installed solar power varies slightly with each season. You can expect about 5.39 kilowatt-hours (kWh) per day in summer, 5.39 kWh/day in autumn, 5.26 kWh/day in winter, and 5.44 kWh/day in spring.
For fixed panel installations at this location, it's best to tilt panels at an angle of 3 degrees towards the south for maximum yearly energy production.
However, there could be some local factors that might affect solar production here:
1) Rainy Season: Being a tropical country, Malaysia experiences a significant amount of rainfall especially during monsoon seasons which may reduce sunlight exposure on panels thereby reducing their efficiency.
2) Dust & Debris: Accumulation of dust or debris on panels can block sunlight and reduce efficiency.
To counter these issues:
1) Weather-Resistant Panels: Use weather-resistant solar panels that perform well even under rainy conditions.
2) Regular Cleaning & Maintenance: Regular cleaning and maintenance ensure dust or debris doesn’t accumulate over time blocking sunlight exposure on your panels.
In conclusion, Rawang is an excellent location for generating solar energy thanks to its consistent sunshine throughout the year; just make sure you choose durable equipment and keep up with regular maintenance!
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 Rawang
Seasonal solar PV output for Latitude: 3.3114, Longitude: 101.5104 (Rawang, 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 Rawang, Malaysia
To maximize your solar PV system's energy output in Rawang, Malaysia (Lat/Long 3.3114, 101.5104) 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 Rawang, 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 Rawang, 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 Rawang, 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 Rawang, 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 Rawang, Malaysia
Rawang, Malaysia is located in the state of Selangor and is characterized by lowland tropical rainforest terrain. The area features a mix of flat lands, hilly areas as well as some mountainous regions. It's surrounded by dense vegetation and numerous water bodies including rivers and lakes.
The region receives ample sunlight throughout the year due to its location near the equator, making it potentially suitable for solar PV installations. However, considering the topography and land use patterns, there are certain factors that need to be taken into account when identifying suitable locations for large-scale solar PV.
1. Flat Lands: Large-scale solar PV projects require large tracts of relatively flat land which can accommodate extensive panel installations without causing major alterations to the natural landscape or ecosystem. Some parts of Rawang fit this criteria.
2. Proximity to Power Grid: Areas close to existing power grids would be more suited for such projects because it reduces costs associated with transmitting electricity over long distances.
3. Land Use Patterns: Locations where agricultural activities or human settlements are minimal would be ideal so as not to disrupt local economies or communities.
4. Environmental Impact: Regions that are not environmentally sensitive or protected should be considered in order not to disturb local biodiversity or ecosystems.
Given these considerations, less densely populated outskirts of Rawang with flatter terrains could potentially serve as feasible sites for large-scale solar PV projects subject to detailed feasibility studies and environmental impact assessments.
Remember also that rooftop solar panels on industrial buildings within Rawang itself could also contribute significantly towards renewable energy generation without requiring additional land resources.
However, any decision on setting up large scale Solar PV must take into consideration multiple factors beyond just topography like regulatory framework, socio-economic impacts etc., hence a comprehensive study involving all stakeholders is highly recommended before moving forward with such initiatives.
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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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Friday 7th 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.
