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Flag of PhilippinesSolar PV Analysis of Pateros, Philippines

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

Pateros, Metro Manila, Philippines, situated in the tropics at latitude 14.5415 and longitude 121.0719, offers a promising location for solar energy generation throughout the year. The consistent sunlight typical of tropical regions provides a solid foundation for solar photovoltaic (PV) systems.

Seasonal Solar Performance

The solar energy output in Pateros 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. These figures indicate that Pateros maintains a relatively high solar potential throughout the year, with only modest fluctuations between seasons. The consistent performance makes it an attractive location for solar PV installations, as it ensures a steady energy supply across all months.

Optimal Panel Positioning

For fixed solar panel installations in Pateros, Metro Manila, the ideal tilt angle to maximize year-round energy production is 12 degrees facing South. This angle takes into account the location's latitude, the Earth's elliptical orbit, and daily solar elevation angles to optimize solar capture throughout the year.

Environmental Considerations

While Pateros presents favorable conditions for solar energy generation, there are some environmental factors to consider: 1. Rainfall: The Philippines experiences a monsoon climate, with a wet season typically from June to November. Heavy rains during this period may temporarily reduce solar panel efficiency. 2. Cloud cover: Increased cloud cover during the rainy season can impact solar energy production. To mitigate these factors, consider the following preventative measures: - Install high-quality, weather-resistant solar panels designed to perform well in humid conditions. - Implement a robust cleaning schedule to remove dust and debris, especially after heavy rains. - Use micro-inverters or power optimizers to minimize the impact of partial shading from clouds.

Conclusion

Overall, Pateros, Metro Manila, Philippines offers an ideal location for year-round solar energy generation. With proper planning and maintenance, a solar PV system in this area can provide consistent and efficient energy production throughout the year, capitalizing on the abundant tropical sunlight.

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 Pateros

Seasonal solar PV output for Latitude: 14.5415, Longitude: 121.0719 (Pateros, 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 Pateros, Philippines

To maximize your solar PV system's energy output in Pateros, Philippines (Lat/Long 14.5415, 121.0719) 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: 14.5415, Longitude: 121.0719, the ideal angle to tilt panels is 12° South

Seasonally adjusted solar panel tilt angles for Pateros, 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 Pateros, 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 30° South in Winter 8° 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 Pateros, 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 30° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 8° angle facing South to capture the most solar energy in Pateros, 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 Pateros, 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 Pateros, 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 Pateros, Philippines

The topography around Pateros, Philippines, is characterized by a mix of urban and suburban landscapes situated in a low-lying area. Pateros is located in the Metro Manila region, which is predominantly flat with some gentle slopes and small hills scattered throughout. The area is part of the Pasig River delta, resulting in a generally low elevation close to sea level. Surrounding Pateros, the terrain is mostly developed, with densely populated residential and commercial areas. The nearby Pasig River and its tributaries have shaped the landscape, creating some natural floodplains and wetlands. However, much of the original natural topography has been altered by urban development and land reclamation projects over the years.

Potential Areas for Large-Scale Solar PV

When considering areas suitable for large-scale solar photovoltaic (PV) installations near Pateros, it's important to look beyond the immediate vicinity due to the urban nature of the region. Some potential areas that might be more suitable for solar PV development include: The provinces east and southeast of Metro Manila, such as Rizal and Laguna, offer more open spaces and less densely populated areas. These regions have gently rolling terrain and agricultural lands that could potentially be repurposed for solar farms. The slightly higher elevations in these areas might also provide better exposure to sunlight. To the north, parts of Bulacan province could offer suitable locations for solar PV installations. This area features a mix of flat agricultural lands and low hills, providing ample space and potentially good solar exposure. The less urbanized nature of this region compared to Metro Manila makes it more feasible for large-scale solar projects. South of Metro Manila, in Cavite province, there are areas with a combination of flat lands and gentle slopes that could be considered for solar PV development. While some parts of Cavite are becoming increasingly urbanized, there are still pockets of land that might be suitable for solar farms. It's worth noting that while these areas may offer better topographical conditions for large-scale solar PV, factors such as land availability, existing infrastructure, and local regulations would need to be carefully considered. Additionally, the tropical climate of the Philippines, with its mix of intense sunlight and frequent cloud cover, presents both opportunities and challenges for solar energy development in the region.

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 Pateros, Philippines
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 7th of April 2025
Last Updated: Wednesday 23rd of July 2025

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