The location at Calasiao, Ilocos, Philippines is quite suitable for generating solar energy throughout the year. This region enjoys consistent sunlight most of the year due to its tropical climate, which means more sunshine hours and therefore more potential for solar power generation.

Looking at the specific numbers provided, you can expect to generate around 5.46 kilowatt-hours (kWh) of electricity per day from each kilowatt (kW) of installed solar in summer, slightly more in autumn with 5.47 kWh/day, a bit less during winter with 5.17 kWh/day and then significantly more during spring with about 6.95 kWh/day.

This indicates that while all seasons are good for solar production here due to high sunlight exposure, spring time seems particularly promising with nearly 7 units of electricity produced daily per kW installed - this is likely due to longer daylight hours and clearer skies typical of this season.

As for setting up your panels - it's recommended that you tilt them at an angle facing southwards by about 15 degrees; this will ensure they capture as much sunlight as possible throughout the day and across different seasons thereby maximizing your overall yearly output.

However there could be some local factors that may affect your system's performance like weather patterns or environmental issues:

1) Tropical storms or typhoons are frequent in Philippines which could damage panels or cause temporary drop in production due to cloud cover.
2) High humidity levels can also affect panel efficiency.
3) Dust buildup on panels from nearby fields or dirt roads might reduce their effectiveness too.

To mitigate these risks:

1) Ensure your installation is sturdy enough to withstand strong winds and consider insurance coverage against storm damages.
2) Regular maintenance checks can help identify any humidity related issues early on.
3) Regular cleaning of panels will keep them free from dust build-up ensuring optimal performance.

So overall Calasiao provides an excellent environment for harnessing solar energy, with some considerations for local weather and environmental factors to ensure maximum performance.

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 Calasiao

Seasonal solar PV output for Latitude: 16.008, Longitude: 120.3537 (Calasiao, 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 5.46kWh/day in Summer.

Average 5.47kWh/day in Autumn.

Average 5.17kWh/day in Winter.

Average 6.95kWh/day in Spring.

Ideally tilt fixed solar panels 15° South in Calasiao, Philippines

To maximize your solar PV system's energy output in Calasiao, Philippines (Lat/Long 16.008, 120.3537) throughout the year, you should tilt your panels at an angle of 15° 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: 16.008, Longitude: 120.3537, the ideal angle to tilt panels is 15° South

Seasonally adjusted solar panel tilt angles for Calasiao, 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 Calasiao, Philippines. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 15° 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 Calasiao, 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 Calasiao, 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 Calasiao, Philippines

Calasiao, Philippines is located in the Pangasinan province on Luzon island. The town lies within a flat plain that is part of the Agno River Basin, one of the largest and most fertile agricultural areas in the country. This area is characterized by its low-lying terrain with an average elevation of only 3 meters above sea level.

Considering this topography, large-scale solar PV installations would be feasible as they require relatively flat land for optimal efficiency. Areas near Calasiao that could potentially accommodate such projects include open fields or unused farmlands where there's ample sun exposure and minimal shading from buildings or trees.

However, several factors must also be considered before setting up a solar farm such as accessibility to roads for installation and maintenance purposes, proximity to power grids for easier energy transmission, soil stability to support heavy equipment and structures, local climate conditions (rainfall pattern, cloud cover), among others.

As per satellite imagery and geographical data available online (like Google Maps), there seem to be vast agricultural lands north-east towards San Jacinto or south-west towards Santa Barbara which can possibly accommodate large-scale solar PV systems. But these are just preliminary assessments; a more detailed feasibility study would have to be carried out on-site by professionals.

It's worth noting too that while Luzon enjoys plenty of sunshine throughout the year making it ideal for solar power generation, it is also susceptible to typhoons which can potentially damage solar panels unless they're designed and installed properly accounting for such weather events.

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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