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

Legaspi Port in the Philippines is a fairly good spot for year-round solar energy production. This is due to its tropical location where sunlight is consistent most of the year, and seasons are more about wet and dry periods rather than significant temperature changes.

In terms of the amount of energy that can be generated here, it varies slightly by season. During summer, you can expect to generate around 5.60 kilowatt-hours (kWh) per day for each kilowatt (kW) of installed solar panels. In autumn, this figure drops slightly to 4.74 kWh/day per kW; in winter it further decreases to 4.08 kWh/day per kW; but then it jumps back up in spring to approximately 6.25 kWh/day per kW.

So if you're looking at the best times of year for generating solar power at this location, spring would be ideal because during this period your panels will generate more electricity compared with other seasons.

If you're installing fixed panel solar arrays at Legaspi Port, Bicol, tilting them at an angle of 11 degrees facing south will help maximize total yearly production from your panels.

However, there could be some local factors that might affect how much energy you can produce from your solar installation here.

Firstly, since Legaspi Port experiences a wet season which could include heavy rain and typhoons, these weather conditions may reduce sunlight exposure and thus limit power generation during these periods.

Secondly, depending on specific topography or geographical features nearby such as mountains or tall buildings that could cast shadows on your panels would also limit their exposure to sunlight hence reducing their efficiency.

To mitigate these potential issues when installing your solar array:

1) You might want to consider using weather-resistant equipment designed specifically for heavy rainfall conditions.
2) If possible position your installation in a place where obstructions like mountains or buildings won't block sunlight.
3) Regular maintenance and cleaning of your panels will also help ensure they're working at their best, especially after severe weather events.

In conclusion, Legaspi Port is a generally good location for solar energy generation with some precautions to be taken into account due to local environmental and topographical factors.

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 Legaspi Port

Seasonal solar PV output for Latitude: 13.1503, Longitude: 123.7579 (Legaspi Port, 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 5.60kWh/day in Summer.
Autumn
Average 4.74kWh/day in Autumn.
Winter
Average 4.08kWh/day in Winter.
Spring
Average 6.25kWh/day in Spring.

 

Ideally tilt fixed solar panels 11° South in Legaspi Port, Philippines

To maximize your solar PV system's energy output in Legaspi Port, Philippines (Lat/Long 13.1503, 123.7579) 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.

The sun
At Latitude: 13.1503, Longitude: 123.7579, the ideal angle to tilt panels is 11° South

Seasonally adjusted solar panel tilt angles for Legaspi Port, 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 Legaspi Port, Philippines. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 11° 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

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Legaspi Port, Philippines as follows: In Summer, set the angle of your panels to 3° facing North. In Autumn, tilt panels to 19° facing South for maximum generation. During Winter, adjust your solar panels to a 28° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 6° angle facing South to capture the most solar energy in Legaspi Port, 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 Legaspi Port, 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 Legaspi Port, 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 Legaspi Port, Philippines

Legaspi Port is located in the Albay province of the Philippines, which features a diverse topography. The region is marked by flat and hilly terrains, mountains, and coastal areas. It's located on the eastern coast of Luzon Island facing the Albay Gulf.

The most prominent geographical feature in this area is Mayon Volcano, an active stratovolcano known for its perfect cone shape. The terrain around Legaspi Port varies from flat coastal plains to hilly and mountainous areas as you move inland.

For large-scale solar PV installations, relatively flat terrains are generally preferred as they can accommodate large arrays of solar panels with minimal obstruction to sunlight. Therefore, the coastal plains surrounding Legaspi Port could be suitable for such projects.

However, it's important to note that any potential site would need a detailed assessment considering various factors like local climate (amount of sunlight), land availability/usage rights, proximity to power grids for transmission etc.

Furthermore, while Albay province receives ample annual sunshine being in a tropical region which is good for solar energy production; it also experiences typhoons frequently which could potentially damage solar installations. So these factors should be considered while planning large-scale solar PV projects in this 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

Article: Solar PV Analysis of Legaspi Port, Philippines
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 4th of February 2024
Last Updated: Monday 21st of July 2025

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