Carigara, Eastern Visayas, Philippines, situated at 11.3014° N, 124.6742° E, offers a favorable location for solar energy generation throughout the year. This tropical setting benefits from consistent sunlight, with seasons primarily distinguished by wet and dry periods rather than temperature variations.

Seasonal Solar Performance

Solar panel performance in Carigara varies across seasons, with spring being the most productive period. The average daily electricity output per kilowatt of installed solar capacity is as follows:

• Spring: 6.24 kWh/day
• Summer: 5.84 kWh/day
• Autumn: 4.95 kWh/day
• Winter: 4.19 kWh/day

These figures indicate that solar energy production remains relatively high throughout the year, with only a moderate decrease during the winter months.

Optimal Panel Positioning

For fixed panel installations in Carigara, Eastern Visayas, the ideal tilt angle to maximize year-round solar production is 9 degrees facing South. This angle ensures optimal exposure to sunlight across all seasons, taking into account the location's latitude and the Earth's elliptical orbit.

Environmental Considerations

While Carigara's climate is generally conducive to solar energy production, there are some environmental factors to consider. The region experiences a tropical monsoon climate, which can bring heavy rainfall and occasional typhoons. These weather patterns may temporarily reduce solar panel efficiency due to cloud cover and potential physical damage from strong winds.

To mitigate these risks, solar installations should incorporate robust mounting systems capable of withstanding high winds. Additionally, using high-quality, water-resistant panels and ensuring proper drainage around the installation can help maintain performance during wet seasons.

Maximizing Solar Potential

To make the most of Carigara's solar potential, it's advisable to schedule routine maintenance during the less productive winter months. This approach ensures that panels are operating at peak efficiency during the highly productive spring and summer seasons. Furthermore, implementing a cleaning schedule to remove dust and debris, particularly after the dry season, can help maintain optimal 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 Carigara

Seasonal solar PV output for Latitude: 11.3014, Longitude: 124.6742 (Carigara, 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 9° South in Carigara, Philippines

To maximize your solar PV system's energy output in Carigara, Philippines (Lat/Long 11.3014, 124.6742) throughout the year, you should tilt your panels at an angle of 9° 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 Carigara, 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 Carigara, Philippines. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 9° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
5° North in Summer	17° South in Autumn	26° South in Winter	5° 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 Carigara, 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 Carigara, 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 Carigara, Philippines

The topography around Carigara, Philippines, is characterized by a diverse landscape that includes coastal plains, rolling hills, and mountainous regions. Situated on the northern coast of Leyte Island, Carigara is nestled between the Carigara Bay to the north and the rugged interior to the south. The coastal area near Carigara features relatively flat terrain with sandy beaches and mangrove forests. This low-lying region gradually transitions into gently rolling hills as one moves inland. These hills are often covered with a mix of agricultural land, coconut plantations, and patches of tropical vegetation. Further south, the landscape becomes more dramatic, with steep hills and mountains dominating the horizon. The Carigara Valley, formed by the Carigara River, cuts through this terrain, creating a fertile lowland area surrounded by higher elevations. This valley is an important agricultural region, with rice paddies and other crops cultivated on its rich alluvial soil.

Potential Areas for Large-Scale Solar PV

When considering locations for large-scale solar photovoltaic (PV) installations near Carigara, several factors come into play, including available land, sun exposure, and accessibility. Based on the topography of the region, a few areas stand out as potentially suitable: The coastal plains north of Carigara offer expansive, flat areas that could accommodate large solar arrays. These locations benefit from unobstructed sunlight and are easily accessible via existing roads. However, care must be taken to avoid ecologically sensitive areas such as mangrove forests. The gently rolling hills to the south and southeast of Carigara present another opportunity for solar development. These areas receive ample sunlight and have sufficient land that is not prime agricultural territory. The slight elevation may also reduce the risk of flooding, which is a concern in lower-lying areas. Some of the broader, flatter sections of the Carigara Valley could be suitable for solar installations, particularly in areas that are not used for intensive agriculture. These locations would have the advantage of being close to existing infrastructure and population centers. It's important to note that while the mountainous regions further inland receive abundant sunlight, their steep terrain and dense vegetation make them less practical for large-scale solar projects. Additionally, any solar development would need to consider environmental impacts, land ownership, and local community needs. In conclusion, the diverse topography around Carigara offers several potential sites for large-scale solar PV installations, with the coastal plains and gentle hills presenting the most promising opportunities. Careful planning and environmental assessments would be necessary to ensure that any solar projects are implemented sustainably and in harmony with the local landscape and communities.

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.