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Flag of PhilippinesSolar PV Analysis of San Pedro One, Philippines

Graph of hourly avg kWh electricity output per kW of Solar PV installed in San Pedro One, Philippines (by season)

San Pedro One, Calabarzon, Philippines, located at 14.0525 latitude and 121.1494 longitude, offers a promising environment for solar energy generation throughout the year. This tropical location benefits from consistent sunlight, with seasons primarily characterized by wet and dry periods rather than traditional temperature-based seasons.

Seasonal Solar Performance

The solar energy output at San Pedro One varies across the meteorological seasons. Spring stands out as the most productive period, with an impressive 6.21 kWh per day for each kilowatt of installed solar capacity. Summer follows with 5.20 kWh/day, while autumn and winter see slightly lower outputs at 4.38 kWh/day and 3.93 kWh/day, respectively.

Optimal Times for Solar Generation

The location's proximity to the equator ensures relatively stable solar potential throughout the year. However, the spring months (March to May) offer the highest energy yield, making it an ideal time for maximum solar production. The summer months (June to August) also provide excellent solar generation opportunities.

Panel Tilt Optimization

For fixed solar panel installations in San Pedro One, Calabarzon, the ideal tilt angle to maximize year-round energy production is 12 degrees facing South. This angle optimizes the panels' exposure to sunlight throughout the year, accounting for the Earth's elliptical orbit and the location's specific latitude.

Environmental and Weather Considerations

While San Pedro One generally offers favorable conditions for solar energy production, there are some factors to consider: 1. Typhoons: The Philippines is prone to tropical cyclones, which can potentially damage solar installations. 2. Heavy rainfall: The wet season may temporarily reduce solar efficiency due to cloud cover and rain. To mitigate these risks, several preventative measures can be taken:
  • Use high-quality, weather-resistant solar panels and mounting systems designed to withstand strong winds and heavy rain.
  • Implement regular maintenance schedules to ensure panels remain clean and undamaged.
  • Consider installing a backup energy storage system to compensate for reduced output during extended periods of inclement weather.
By addressing these factors, solar installations in San Pedro One can maximize their energy production potential and provide a reliable source of renewable energy throughout the year.

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 Pedro One

Seasonal solar PV output for Latitude: 14.0525, Longitude: 121.1494 (San Pedro One, 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:

Summer
Average 5.20kWh/day in Summer.
Autumn
Average 4.38kWh/day in Autumn.
Winter
Average 3.93kWh/day in Winter.
Spring
Average 6.21kWh/day in Spring.

 

Ideally tilt fixed solar panels 12° South in San Pedro One, Philippines

To maximize your solar PV system's energy output in San Pedro One, Philippines (Lat/Long 14.0525, 121.1494) 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.

The sun
At Latitude: 14.0525, Longitude: 121.1494, the ideal angle to tilt panels is 12° South

Seasonally adjusted solar panel tilt angles for San Pedro One, 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 Pedro One, 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

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in San Pedro One, Philippines as follows: In Summer, set the angle of your panels to 2° facing North. In Autumn, tilt panels to 20° facing South for maximum generation. During Winter, adjust your solar panels to a 29° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 7° angle facing South to capture the most solar energy in San Pedro One, Philippines.

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 Pedro One, 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 Pedro One, Philippines.

Our calculation method

  1. Solar Position:
    We determine the Sun's position on the Winter solstice using the location's latitude and solar declination.
  2. Shadow Projection:
    We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle.
  3. 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.






Please enter information above to calculate panel spacing.

Topography for solar PV around San Pedro One, Philippines

The topography around San Pedro One, Philippines, located at coordinates 14.0525 latitude and 121.1494 longitude, is characterized by a diverse landscape that transitions from coastal lowlands to rolling hills and mountainous terrain. This area is situated in the province of Laguna, on the island of Luzon, and lies near the southwestern shore of Laguna de Bay, the largest lake in the Philippines. The immediate vicinity of San Pedro One features relatively flat to gently sloping terrain, typical of urban and suburban areas. As one moves away from the city center, the landscape gradually becomes more varied. To the east, the terrain slopes down towards Laguna de Bay, with some areas prone to flooding during heavy rains. To the west and southwest, the land begins to rise, forming foothills that eventually lead to the more mountainous regions of Cavite province.

Potential Areas for Large-Scale Solar PV

When considering areas nearby that would be most suited to large-scale solar photovoltaic (PV) installations, several factors come into play. The ideal locations would have ample sunlight exposure, relatively flat terrain, and be away from densely populated areas. One promising area for solar PV development could be the agricultural lands to the south and southeast of San Pedro One. These areas often feature expansive, open fields with minimal shading from trees or buildings, providing excellent sun exposure throughout the day. The relatively flat terrain of these agricultural regions would also simplify the installation process and reduce construction costs. Another potential location for solar PV projects could be the gently sloping hillsides to the west and southwest of San Pedro One. While care would need to be taken to avoid areas with steep gradients, the elevated position of these hillsides could offer good sun exposure and potentially reduce the impact of morning and evening shading. It's important to note that any large-scale solar PV project would need to carefully consider environmental impacts, land use regulations, and proximity to existing power infrastructure. Additionally, areas near Laguna de Bay should be approached with caution due to potential flooding risks, which could damage solar installations. In conclusion, while the varied topography around San Pedro One presents both challenges and opportunities for solar PV development, there are several promising areas in the vicinity that could potentially support large-scale installations, particularly in the agricultural lands to the south and southeast, and on suitable hillsides to the west and southwest.

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

Article: Solar PV Analysis of San Pedro One, Philippines
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 30th of March 2025
Last Updated: Monday 21st of July 2025

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Compare this location to others worldwide for solar PV potential

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