Guiguinto, Central Luzon, Philippines, situated in the tropics, offers a promising location for solar energy generation throughout the year. This area experiences consistent sunlight and is characterized more by wet and dry seasons rather than traditional four-season cycles.

Year-round Solar Potential

The solar energy output in Guiguinto remains relatively stable across the meteorological seasons, with a notable peak in spring. Here's a breakdown of the expected daily electricity output per kilowatt of installed solar capacity: • Spring: 6.94 kWh/day • Summer: 5.27 kWh/day • Autumn: 5.19 kWh/day • Winter: 5.07 kWh/day This data indicates that spring is the most productive season for solar energy generation in Guiguinto. However, the consistent output throughout the year makes this location ideal for year-round solar power production.

Optimal Panel Tilt

For fixed panel installations in Guiguinto, Central Luzon, the ideal tilt angle to maximize total year-round production is 14 degrees facing South. This angle has been calculated considering the location's latitude, daily solar elevation angles, and weighted by daily photovoltaic potential.

Environmental Considerations

While Guiguinto's tropical climate is generally favorable for solar energy production, there are some environmental factors to consider: 1. Typhoons: The Philippines is prone to typhoons, which can potentially damage solar installations. To mitigate this risk, robust mounting systems and high-quality, weather-resistant panels should be used. 2. Heavy rainfall: The wet season can bring prolonged periods of cloud cover and rain, potentially reducing solar output. Installing panels with high efficiency in low-light conditions can help maintain production during these times. 3. High humidity: The tropical climate's high humidity can lead to moisture buildup on panels, potentially reducing efficiency. Regular cleaning and maintenance, along with proper sealing of electrical components, can help prevent issues related to humidity. 4. Dust and pollution: Urban areas may experience higher levels of dust and air pollution, which can accumulate on panels and reduce efficiency. Implementing a regular cleaning schedule and considering self-cleaning panel technologies can help maintain optimal performance. By taking these factors into account and implementing appropriate preventative measures, solar installations in Guiguinto can be optimized to ensure consistent and efficient energy production 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 Guiguinto

Seasonal solar PV output for Latitude: 14.8309, Longitude: 120.8787 (Guiguinto, 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 Guiguinto, Philippines

To maximize your solar PV system's energy output in Guiguinto, Philippines (Lat/Long 14.8309, 120.8787) 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 Guiguinto, 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 Guiguinto, 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	30° 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 Guiguinto, 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 Guiguinto, 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.

Topography for solar PV around Guiguinto, Philippines

The topography around Guiguinto, Philippines, is characterized by a predominantly flat landscape with gentle undulations. This area is part of the Central Luzon plains, a vast expanse of lowlands that stretches across much of the region. The terrain in and around Guiguinto is primarily composed of alluvial plains, formed by sediment deposited over time by rivers and streams flowing from nearby mountain ranges. To the east of Guiguinto, the land gradually rises towards the Sierra Madre mountain range, which forms a natural barrier along the eastern coast of Luzon. However, the immediate vicinity of Guiguinto remains relatively flat, with elevations typically ranging from just a few meters above sea level to around 50 meters in some slightly higher areas. The flatness of the terrain is punctuated by occasional small hills and low-lying areas, some of which may be seasonally flooded during periods of heavy rainfall. Rivers and streams crisscross the landscape, contributing to the area's fertility and suitability for agriculture.

Suitable Areas for Large-scale Solar PV

Given the topographical characteristics of the region, several areas near Guiguinto would be well-suited for large-scale solar photovoltaic (PV) installations. The flat terrain and lack of significant geographical obstacles make much of the surrounding land potentially viable for solar energy projects. Particularly promising areas for solar PV development would be the expansive agricultural lands to the north and west of Guiguinto. These areas offer large, unobstructed spaces with minimal shading from natural features or man-made structures. The flat nature of these lands would simplify the installation process and reduce construction costs. Additionally, some of the slightly elevated areas to the east, as the land begins to rise towards the Sierra Madre, could provide excellent locations for solar farms. These higher grounds may benefit from reduced risk of flooding and potentially clearer skies, maximizing solar exposure. It's important to note that while the topography is favorable, other factors such as land ownership, proximity to power infrastructure, and environmental considerations would also play crucial roles in determining the most suitable locations for large-scale solar PV projects in the vicinity of Guiguinto.

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

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.