Solar PV Analysis of San Pablo, Philippines
San Pablo, Calabarzon, Philippines is a good location for generating solar energy throughout the year because it's located in the tropics where sunlight is fairly consistent. The amount of electricity that can be produced from solar energy varies slightly by season, with Spring being the best time and Winter being the least productive. To break it down: in Summer you can expect to generate about 5.18 units of electricity per day for each unit of solar power installed; this drops slightly to 4.40 units in Autumn and further to 3.98 units in Winter, but then increases significantly to 6.17 units in Spring.
For a fixed panel installation at this location, tilting your panels at an angle of 12 degrees towards the South will maximize your total yearly production from solar power.
However, there are some environmental and weather factors that could affect how much energy you're able to produce from your solar panels here.
Firstly, as San Pablo experiences both wet and dry seasons rather than traditional four seasons like many other countries do, heavy rainfall during wet season could potentially decrease your overall output due to less sunlight reaching your panels.
Secondly, dust or dirt build-up on your panels may also reduce their efficiency over time - especially if they're not cleaned regularly.
To counter these issues:
1) You might consider installing a system that allows you to adjust the tilt of your panels depending on whether it's currently wet or dry season - this way you can ensure they're always positioned optimally according to current weather conditions.
2) Regular cleaning maintenance should be carried out on the panels so as not let any accumulated dust or dirt interfere with their performance.
Overall though these are relatively minor considerations given how ideal San Pablo's tropical climate generally is for harnessing solar energy 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 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 San Pablo
Seasonal solar PV output for Latitude: 14.0751, Longitude: 121.3289 (San Pablo, 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 12° South in San Pablo, Philippines
To maximize your solar PV system's energy output in San Pablo, Philippines (Lat/Long 14.0751, 121.3289) throughout the year, you should tilt your panels at an angle of 12° 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 San Pablo, 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 San Pablo, Philippines. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 12° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 2° North in Summer | 20° South in Autumn | 29° South in Winter | 7° 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 San Pablo, 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 San Pablo, 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 San Pablo, Philippines
San Pablo, Philippines is located in the province of Laguna on Luzon Island. The topography around San Pablo is a mix of flat plains and hilly terrains. It's surrounded by seven crater lakes which are known as the Seven Lakes of San Pablo.
The region has a tropical climate with high temperatures throughout the year, making it suitable for solar PV installations. However, due to its geographical location and surrounding bodies of water, it can be prone to typhoons which could potentially damage solar infrastructure.
For large-scale solar PV installations, areas with flat terrain would be most suited as they provide an unobstructed path for sunlight and ease installation process. Some potential areas nearby could include agricultural lands or unused open spaces that are not prone to flooding.
It's also important to consider factors such as proximity to electrical grids for power transmission and local regulations regarding land use and renewable energy projects when deciding on locations for large-scale solar PV installations.
Lastly, any site selection should involve detailed analysis including sun radiation levels (DNI), weather patterns (especially storm/typhoon risks), soil type (for construction stability) among others.
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: Sunday 31st 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.
