Ivisan, Western Visayas, Philippines, located in the tropics, offers a promising environment for solar energy generation. This location experiences consistent sunlight throughout the year, with seasons primarily characterized by wet and dry periods rather than significant temperature variations.

Seasonal Solar Energy Production

The solar energy potential in Ivisan varies across seasons, with spring being the most productive period. On average, each kilowatt of installed solar capacity can generate:

• Spring: 6.13 kWh per day
• Summer: 5.49 kWh per day
• Autumn: 4.84 kWh per day
• Winter: 4.22 kWh per day

This data indicates that solar energy production remains relatively consistent throughout the year, with a slight dip during winter months.

Optimal Panel Placement

For fixed solar panel installations in Ivisan, Western Visayas, the ideal tilt angle to maximize year-round energy production is 10 degrees facing South. This angle has been calculated considering the location's latitude and the Earth's elliptical orbit, ensuring optimal exposure to sunlight throughout the year.

Environmental Considerations

While Ivisan's tropical climate 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 damage solar installations. To mitigate this risk, robust mounting systems and high-quality, weather-resistant panels should be used. 2. Heavy rainfall: The region experiences a wet season, which could temporarily reduce solar output. Installing panels at the optimal angle helps with water runoff and ensures quicker drying after rain events. 3. High humidity: Moisture can potentially affect electrical components. Using corrosion-resistant materials and ensuring proper sealing of all electrical connections is crucial.

Preventative Measures

To maximize solar energy production in Ivisan, Western Visayas, consider the following preventative measures: 1. Regular cleaning: Implement a cleaning schedule to remove dust and debris, which can accumulate during dry seasons and reduce panel efficiency. 2. Monitoring systems: Install real-time monitoring systems to quickly identify and address any performance issues. 3. Backup systems: Consider incorporating energy storage solutions to maintain power supply during periods of lower solar production or extreme weather events.

Overall, Ivisan's tropical location provides an excellent opportunity for consistent solar energy generation throughout the year, with proper planning and maintenance to address local environmental 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 Ivisan

Seasonal solar PV output for Latitude: 11.5196, Longitude: 122.6926 (Ivisan, 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 Ivisan, Philippines

To maximize your solar PV system's energy output in Ivisan, Philippines (Lat/Long 11.5196, 122.6926) 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 Ivisan, 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 Ivisan, 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
4° North in Summer	18° South in Autumn	27° 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 Ivisan, 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 Ivisan, 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 Ivisan, Philippines

The topography around Ivisan, Philippines, is characterized by a mix of coastal lowlands and gently rolling hills. Situated on the northern coast of Panay Island, Ivisan is part of Capiz province and enjoys a diverse landscape that transitions from sea level to slightly elevated terrain as you move inland. Along the coast, the area features flat, sandy beaches and mangrove forests. These low-lying areas gradually give way to agricultural plains, where rice paddies and coconut plantations dominate the landscape. As you move further south and away from the coast, the terrain becomes more undulating, with small hills and valleys creating a patchwork of farmland and scattered woodlands.

Potential for Solar PV Development

When considering areas nearby that would be most suited to large-scale solar PV installations, several factors come into play. The gently sloping hillsides to the south of Ivisan present promising opportunities for solar development. These areas offer several advantages: Firstly, the elevated terrain receives more consistent sunlight throughout the day, with fewer obstructions from trees or buildings. This increased exposure to solar radiation can significantly boost the efficiency of photovoltaic panels. Additionally, the slight incline of these hills can be beneficial for panel placement, allowing for optimal angling towards the sun and reducing the risk of shadowing between rows of panels. Secondly, these hilly areas are often less suitable for intensive agriculture, making them available for alternative land uses such as solar farms. Converting such land to solar production could provide economic benefits without significantly impacting food production in the region. However, it's important to note that any large-scale solar development would need to consider environmental impacts, particularly regarding land clearing and potential effects on local ecosystems. Areas closer to existing power infrastructure would also be preferable to minimize the costs and environmental disturbance associated with new transmission lines. While the coastal plains offer flat terrain that could accommodate solar installations, these areas may be better suited for agriculture or face risks from flooding and storm surges. Therefore, the gently elevated areas further inland, particularly those with southern exposure, represent the most promising locations for large-scale solar PV development near Ivisan.

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.