Mabalacat, Central Luzon, Philippines, situated at 15.2251° N, 120.5733° E, offers a promising location for solar energy generation throughout the year. Located in the tropics, this area experiences consistent sunlight and is characterized more by wet and dry seasons rather than traditional four-season cycles.
The solar energy potential in Mabalacat is relatively stable across the year, with some seasonal variations. Spring stands out as the most productive season, generating an impressive 6.90 kWh per day for each kilowatt of installed solar capacity. The other seasons show consistent performance, with autumn producing 5.37 kWh/day, summer 5.33 kWh/day, and winter slightly lower at 5.26 kWh/day.
Optimal Panel Placement
For fixed solar panel installations in Mabalacat, Central Luzon, the ideal tilt angle to maximize year-round energy production is 14 degrees facing South. This angle takes into account the location's latitude and the sun's position throughout the year, ensuring optimal sunlight capture across seasons.
Environmental Considerations
While Mabalacat's tropical climate is generally favorable for solar energy production, there are some environmental factors to consider:
- Typhoons: The Philippines is prone to tropical cyclones, which can potentially damage solar installations.
- Heavy rainfall: The wet season can lead to reduced sunlight and potential flooding.
To mitigate these risks, it's crucial to use sturdy mounting systems designed to withstand high winds and heavy rain. Additionally, implementing proper drainage systems around the installation site can help prevent water damage. Regular maintenance and cleaning of panels, especially during the wet season, can also help maintain optimal energy production.
Despite these challenges, Mabalacat's consistent sunlight throughout the year makes it an excellent location for solar energy generation. With proper planning and preventative measures, solar installations in this area can provide a reliable and sustainable source of energy.
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 268 locations across Philippines. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Philippines by location
Solar output per kW of installed solar PV by season in Mabalacat
Seasonal solar PV output for Latitude: 15.2251, Longitude: 120.5733 (Mabalacat, Philippines), 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 14° South in Mabalacat, Philippines
To maximize your solar PV system's energy output in Mabalacat, Philippines (Lat/Long 15.2251, 120.5733) throughout the year, you should tilt your panels at an angle of 14° 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 Mabalacat, Philippines
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 Mabalacat, Philippines. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 14° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 1° North in Summer | 21° South in Autumn | 31° South in Winter | 8° South 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 Mabalacat, Philippines
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 Mabalacat, Philippines.
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 Mabalacat, Philippines
The topography around Mabalacat, Philippines, is characterized by a mix of flat lowlands and gently rolling terrain. Mabalacat itself is situated in the central plains of Luzon, the largest island in the Philippines. To the west of the city, the land gradually slopes upward towards the Zambales Mountains, while to the east, the terrain remains relatively flat as it extends towards the Philippine Sea.
The area surrounding Mabalacat is primarily composed of agricultural land, with rice paddies and sugar cane fields dominating the landscape. Scattered throughout this rural setting are small hills and occasional patches of woodland. The nearby Clark Freeport Zone, formerly a U.S. Air Force base, occupies a large, flat area to the south of Mabalacat.
To the north of Mabalacat, the terrain becomes slightly more elevated as it approaches Mount Pinatubo, a famous volcano that dramatically erupted in 1991. The volcanic activity has left its mark on the region, with some areas still showing traces of lahar (volcanic mudflow) deposits.
When considering areas nearby that would be most suited for large-scale solar PV (photovoltaic) installations, several factors come into play. The ideal locations would have the following characteristics:
- Flat or gently sloping terrain to minimize installation costs and maximize sun exposure
- Minimal shading from nearby mountains or tall structures
- Good road access for construction and maintenance
- Proximity to existing electrical infrastructure
- Land that is not prime agricultural or ecologically sensitive
Given these criteria, the most suitable areas for large-scale solar PV near Mabalacat would likely be:
1. The expansive flat lands within and around the Clark Freeport Zone: This area offers large, open spaces with excellent infrastructure and minimal shading concerns.
2. Former agricultural lands to the east of Mabalacat: These areas are generally flat and may be less productive for farming, making them potential candidates for solar development.
3. Gently sloping areas to the west, before the terrain becomes too steep: These locations could provide good sun exposure while still being accessible.
It's important to note that any large-scale solar PV project would require detailed site assessments, environmental impact studies, and approval from local authorities before proceeding. The suitability of specific locations would need to be verified through on-site surveys and analysis.
Philippines solar PV Stats as a country
Philippines ranks 40th in the world for cumulative solar PV capacity, with 1,370 total MW's of solar PV installed. Each year Philippines is generating 13 Watts from solar PV per capita (Philippines ranks 71st in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Philippines?
Yes, there are several incentives for businesses wanting to install solar energy in the Philippines. These include:
1. The Feed-in Tariff (FiT) program, which provides a guaranteed rate of return on investments in renewable energy projects;
2. Tax credits and exemptions from certain taxes;
3. Net metering programs that allow businesses to sell excess electricity back to the grid;
4. Grants and loans from government agencies such as the Department of Energy and the Philippine Solar Power Alliance;
5. Technical assistance from organizations like USAID’s Clean Energy Program; and
6. Access to financing through banks, venture capital firms, or other sources of private capital.
Do you have more up to date information than this on incentives towards solar PV projects in Philippines? 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: Monday 9th of September 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.




