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Flag of PhilippinesSolar PV Analysis of Mambusao, Philippines

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

Mambusao, Western Visayas, Philippines, located in the tropics at 11.4252° N, 122.5968° E, offers a favorable environment for solar energy generation throughout the year. The consistent sunlight in this region, characterized more by wet and dry seasons than traditional four-season cycles, provides a steady source of solar energy.

Seasonal Solar Production

Solar panel performance in Mambusao varies across the meteorological seasons: Spring sees the highest energy output at 6.13 kWh per day for each kilowatt of installed solar capacity. Summer follows with 5.49 kWh/day, then autumn with 4.84 kWh/day. Winter, while still productive, has the lowest output at 4.22 kWh/day. This pattern indicates that Mambusao is well-suited for year-round solar energy production, with spring and summer being particularly favorable. The relatively small variation between seasons suggests a reliable and consistent energy supply throughout the year.

Optimal Panel Positioning

For fixed solar panel installations in Mambusao, Western Visayas, the ideal tilt angle to maximize year-round energy production is 10 degrees facing South. This angle takes into account the location's latitude and the sun's position throughout the year, ensuring optimal exposure to sunlight across all seasons.

Environmental Considerations

While Mambusao's tropical climate is generally conducive to solar energy production, there are some environmental factors to consider: 1. Typhoons and heavy rainfall: The Philippines experiences frequent tropical storms, which can potentially damage solar installations or reduce efficiency due to cloud cover. 2. High humidity: The region's humid climate may lead to accelerated wear on solar equipment if not properly maintained. To mitigate these issues, solar installations should incorporate sturdy mounting systems designed to withstand high winds. Additionally, using corrosion-resistant materials and implementing regular maintenance schedules can help protect against humidity-related degradation. Despite these challenges, the consistent sunlight and favorable positioning make Mambusao an excellent location for solar energy production. With proper planning and maintenance, solar installations in this area can provide a reliable and sustainable source of energy 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 257 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 Mambusao

Seasonal solar PV output for Latitude: 11.4252, Longitude: 122.5968 (Mambusao, 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 5.49kWh/day in Summer.
Autumn
Average 4.84kWh/day in Autumn.
Winter
Average 4.22kWh/day in Winter.
Spring
Average 6.13kWh/day in Spring.

 

Ideally tilt fixed solar panels 10° South in Mambusao, Philippines

To maximize your solar PV system's energy output in Mambusao, Philippines (Lat/Long 11.4252, 122.5968) throughout the year, you should tilt your panels at an angle of 10° 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: 11.4252, Longitude: 122.5968, the ideal angle to tilt panels is 10° South

Seasonally adjusted solar panel tilt angles for Mambusao, 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 Mambusao, Philippines. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 10° South tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
5° North in Summer 17° South in Autumn 27° South in Winter 5° 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 Mambusao, Philippines as follows: In Summer, set the angle of your panels to 5° facing North. In Autumn, tilt panels to 17° facing South for maximum generation. During Winter, adjust your solar panels to a 27° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 5° angle facing South to capture the most solar energy in Mambusao, 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 Mambusao, 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 Mambusao, 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 Mambusao, Philippines

The topography around Mambusao, Philippines, located at 11.4252 latitude and 122.5968 longitude, is characterized by a mix of lowland plains and gently rolling hills. This area is situated in the central part of Panay Island, one of the larger islands in the Visayas region. The landscape is primarily composed of agricultural lands, with rice paddies and sugarcane fields dominating the flat areas. As you move away from the town center, the terrain gradually becomes more undulating, with small hills and valleys creating a patchwork of diverse landscapes. Rivers and streams crisscross the area, providing essential water resources for agriculture and daily use. The nearby mountains of the Central Panay Mountain Range can be seen in the distance, adding to the scenic beauty of the region.

Potential for Large-Scale Solar PV

When considering areas nearby Mambusao for large-scale solar photovoltaic (PV) installations, several factors come into play. The most suitable locations would be those that offer a combination of favorable topography, ample sunlight exposure, and minimal environmental impact. The flat agricultural lands surrounding Mambusao present promising opportunities for solar PV development. These areas typically have good sun exposure throughout the day and minimal shading from natural obstacles. However, it's important to balance the use of productive agricultural land with the need for renewable energy generation. Gently sloping hillsides near Mambusao could also be suitable for solar PV installations. These areas often receive excellent sunlight and may be less valuable for agriculture. Additionally, the slight inclination can help with natural water drainage, which is beneficial for maintaining the solar panels. It's worth noting that while the immediate vicinity of Mambusao offers potential for solar PV development, larger-scale projects might find more suitable locations in the broader region of Capiz province. Areas with less productive soil, away from flood-prone zones, and with good access to existing power infrastructure would be ideal candidates for extensive solar farms. Before any development, thorough environmental impact assessments and community consultations would be necessary to ensure that solar PV installations are implemented sustainably and with local support. The tropical climate of the Philippines, with its abundant sunshine, generally favors solar energy production, making the region around Mambusao a potentially valuable area for contributing to the country's renewable energy goals.

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 Mambusao, Philippines
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 15th of March 2025
Last Updated: Thursday 12th of June 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.

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