Gubat, Bicol Region, Philippines, situated in the tropics at latitude 12.9217 and longitude 124.1271, offers a promising location for solar energy generation. The consistent sunlight throughout the year, typical of tropical regions, provides a solid foundation for solar PV installations.

Seasonal Solar Performance

Solar panel performance in Gubat varies across the meteorological seasons. Spring stands out as the most productive period, with an impressive daily output of 6.27 kWh per kW of installed solar capacity. Summer follows closely, generating 5.83 kWh/day. Autumn sees a slight decrease to 4.75 kWh/day, while winter experiences the lowest output at 3.97 kWh/day. These figures indicate that Gubat maintains relatively high solar productivity year-round, with only moderate fluctuations between seasons. The location's tropical climate, characterized more by wet and dry seasons than traditional four-season patterns, contributes to this consistent performance.

Optimal Panel Tilt

For fixed solar panel installations in Gubat, Bicol Region, the ideal tilt angle to maximize year-round energy production is 10 degrees facing South. This angle has been calculated taking into account the location's latitude, daily solar elevation angles, and weighted by NASA's solar irradiance data.

Environmental Considerations

While Gubat's tropical location is generally favorable for solar energy production, there are some environmental factors to consider: 1. Typhoons: The Philippines is prone to tropical cyclones, which can potentially damage solar installations. 2. Heavy rainfall: The wet season can bring prolonged periods of cloud cover and intense precipitation. To mitigate these risks, several preventative measures can be implemented:

• Use typhoon-resistant mounting systems and high-quality, durable panels
• Install proper drainage systems to prevent water accumulation
• Regularly clean panels to remove dirt and debris, especially during the dry season
• Consider a hybrid system with battery storage to ensure power availability during extended periods of low sunlight

By addressing these factors, solar installations in Gubat can maximize their energy production potential and resilience, taking full advantage of the location's generally favorable conditions for solar PV generation.

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 Gubat

Seasonal solar PV output for Latitude: 12.9217, Longitude: 124.1271 (Gubat, 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 10° South in Gubat, Philippines

To maximize your solar PV system's energy output in Gubat, Philippines (Lat/Long 12.9217, 124.1271) 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.

Seasonally adjusted solar panel tilt angles for Gubat, 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 Gubat, 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
3° North in Summer	19° South in Autumn	28° South in Winter	6° 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 Gubat, 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 Gubat, 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 Gubat, Philippines

The topography around Gubat, Philippines, is characterized by a diverse landscape that combines coastal areas, lowlands, and hilly terrain. Situated on the eastern coast of Sorsogon province on the island of Luzon, Gubat is nestled between the Philippine Sea to the east and the rolling hills and mountains of the Bicol Peninsula to the west. Along the coastline, Gubat features sandy beaches and flat, low-lying areas that gradually rise as one moves inland. These coastal plains are dotted with coconut groves, rice paddies, and small settlements. As you venture further from the shore, the terrain becomes more undulating, with gentle slopes and small hills covered in tropical vegetation. To the west and northwest of Gubat, the landscape becomes increasingly hilly, with elevations rising more steeply. These areas are part of the larger Bicol Peninsula mountain range, which runs along the spine of the Bicol Region. The hills are often covered in lush forests and interspersed with valleys and small rivers that flow towards the coast.

Suitable Areas for Large-scale Solar PV

When considering areas near Gubat for large-scale solar photovoltaic (PV) installations, several factors come into play, including available land, sunlight exposure, and accessibility. The most suitable locations for such projects would likely be found in the following areas: The coastal plains to the north and south of Gubat offer potential for solar PV development. These relatively flat areas receive ample sunlight and have fewer obstacles that could cast shadows on solar panels. The land here is often used for agriculture, so careful planning would be needed to balance solar energy production with existing land uses. Gently sloping hillsides inland from the coast could also be suitable for solar installations. These areas may benefit from slightly higher elevations, potentially receiving more consistent sunlight throughout the day. However, care must be taken to avoid steep slopes or areas prone to landslides. Cleared areas or grasslands within the hilly regions to the west of Gubat might also be considered for solar PV projects. These locations could offer good sun exposure if properly situated, though accessibility and grid connection may be more challenging in these more remote areas. It's important to note that any large-scale solar PV development would need to consider environmental impacts, local community needs, and potential conflicts with existing land uses. Additionally, the region's vulnerability to typhoons and other extreme weather events would necessitate robust design and construction practices for any solar installations in the area.

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.