Legazpi, Bicol, Philippines (latitude 13.1338, longitude 123.7367) is well-suited for solar PV generation due to consistent sunlight and mild seasonal variations throughout the year. The average energy production per day per kW of installed solar in each season is as follows: 5.60 kWh in Summer, 4.74 kWh in Autumn, 4.08 kWh in Winter, and 6.25 kWh in Spring.

To optimize solar energy capture at this location, fixed panels should be tilted at an angle of 11 degrees towards the South direction. Although heavy rainfall during wetter months like summer and spring may slightly reduce energy production levels, there are no other significant environmental or topographical factors that could impede solar power generation at this site.

By carefully selecting suitable installation sites and implementing proper maintenance measures such as regular cleaning of panels to remove dirt or debris caused by rainstorms or other weather events, it is possible to ensure optimal energy production from a solar PV system installed in Legazpi 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 Legazpi

Seasonal solar PV output for Latitude: 13.1338, Longitude: 123.7367 (Legazpi, 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:

Average 5.60kWh/day in Summer.

Average 4.74kWh/day in Autumn.

Average 4.08kWh/day in Winter.

Average 6.25kWh/day in Spring.

Ideally tilt fixed solar panels 11° South in Legazpi, Philippines

To maximize your solar PV system's energy output in Legazpi, Philippines (Lat/Long 13.1338, 123.7367) throughout the year, you should tilt your panels at an angle of 11° 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.

At Latitude: 13.1338, Longitude: 123.7367, the ideal angle to tilt panels is 11° South

Seasonally adjusted solar panel tilt angles for Legazpi, 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 Legazpi, Philippines. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 11° South tilt angle throughout the year.

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 Legazpi, 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 Legazpi, 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 Legazpi, Philippines

The topography of Legazpi, Philippines is generally flat and low-lying. The city is located on the coast of Albay Gulf in the Bicol Region, with a few hills rising up to 500 meters in elevation. Areas that are most suitable for large-scale solar PV installations include open fields on the outskirts of the city, wide stretches of coastal land (such as along Barangay Sto. Domingo), and flat rooftops within the urban area. These areas offer ample space for solar panels and tend to have good access to sunlight throughout the year.

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!

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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.

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.

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