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

Seasonal Solar Performance

Solar panel performance in Tadlak varies across the meteorological seasons. Spring stands out as the most productive period, with an impressive daily output of 6.21 kWh per kW of installed solar capacity. Summer follows with 5.20 kWh/day, while autumn and winter see slightly reduced but still significant outputs of 4.38 kWh/day and 3.93 kWh/day, respectively.

Optimal Generation Periods

The data suggests that spring and summer are the ideal times for solar energy generation in Tadlak. During these seasons, longer daylight hours and clearer skies contribute to higher solar panel efficiency. However, it's worth noting that even during the less productive autumn and winter months, the output remains relatively high compared to many other global locations.

Panel Installation Considerations

For fixed panel installations in Tadlak, Calabarzon, the ideal tilt angle to maximize year-round solar production is 12 degrees facing South. This angle is calculated based on the location's latitude and the Earth's elliptical orbit, ensuring optimal exposure to sunlight throughout the year.

Environmental Factors and Mitigation

While Tadlak's tropical location is generally favorable for solar energy production, there are some environmental factors to consider: 1. Typhoons and heavy rainfall: The Philippines is prone to tropical cyclones, which can potentially damage solar installations. To mitigate this risk, robust mounting systems and high-quality, weather-resistant panels should be used. 2. High humidity: The tropical climate brings high humidity levels, which can lead to moisture buildup on panels. Regular cleaning and maintenance can help prevent this issue and ensure optimal performance. 3. Cloud cover during the wet season: Although sunlight is generally consistent, increased cloud cover during the wet season may slightly reduce solar output. Using high-efficiency panels can help maximize energy production even under less-than-ideal conditions. By addressing these factors through proper installation techniques and regular maintenance, solar energy systems in Tadlak can operate efficiently and productively throughout the year, taking full advantage of the location's favorable solar conditions.

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 Tadlak

Seasonal solar PV output for Latitude: 14.183, Longitude: 121.1993 (Tadlak, 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 12° South in Tadlak, Philippines

To maximize your solar PV system's energy output in Tadlak, Philippines (Lat/Long 14.183, 121.1993) throughout the year, you should tilt your panels at an angle of 12° 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 Tadlak, 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 Tadlak, Philippines. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 12° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
2° North in Summer	20° South in Autumn	29° South in Winter	7° 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 Tadlak, 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 Tadlak, 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 Tadlak, Philippines

The topography around Tadlak, Philippines, is characterized by a diverse landscape that combines lowland areas with gently rolling hills and more elevated terrain. Situated in the province of Laguna on the island of Luzon, Tadlak is nestled within a region that transitions from the coastal plains near Laguna de Bay to the foothills of the Sierra Madre mountain range. The immediate vicinity of Tadlak features relatively flat to undulating terrain, with scattered patches of agricultural land interspersed with residential areas. As one moves away from the town center, the landscape becomes more varied, with low hills and small valleys creating a picturesque setting. The elevation gradually increases towards the east, where the terrain becomes more rugged and forested as it approaches the Sierra Madre mountains. To the west of Tadlak, the land slopes gently towards Laguna de Bay, the largest lake in the Philippines. This area is predominantly flat, with expansive rice fields and other agricultural plots dominating the landscape. The proximity to the lake influences the local topography, creating a fertile plain that has been shaped by centuries of human activity and natural processes.

Suitability for Large-Scale Solar PV

When considering areas nearby that would be most suited to large-scale solar photovoltaic (PV) installations, several factors come into play. The ideal locations for solar PV projects typically require flat or gently sloping land with minimal shading from natural or man-made structures. The lowland areas to the west and southwest of Tadlak, extending towards Laguna de Bay, present promising opportunities for solar PV development. These regions offer vast stretches of relatively flat terrain that receive ample sunlight throughout the year. The agricultural lands in this area, particularly those that may be less productive or suitable for crop cultivation, could potentially be repurposed for solar energy generation. Additionally, some of the gently rolling hills surrounding Tadlak might also be suitable for solar PV installations. These elevated areas could provide good exposure to sunlight and potentially reduce the impact of morning and evening shading. However, care would need to be taken to avoid areas with steep slopes or dense vegetation that could complicate construction and maintenance. It's important to note that while the topography plays a crucial role in determining suitable locations for solar PV, other factors such as land ownership, proximity to electrical infrastructure, and environmental considerations would also need to be taken into account when planning large-scale solar projects in the region.

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.