Bais, Central Visayas, Philippines is a decent location for generating energy via solar PV all year round. This is because it's located in the Tropics where sunlight is consistent throughout most of the year. The seasons are often defined more by wet and dry periods rather than significant changes in sunlight.

The amount of electricity that can be generated from each kilowatt (kW) of installed solar varies slightly with the seasons. You can expect to generate around 5.82 kWh/day in summer, 5.13 kWh/day in autumn, 4.63 kWh/day in winter, and 6.09 kWh/day during spring per kW of installed solar.

Spring seems to be the best time for generating solar power at this location due to higher daily output, followed by summer, autumn then winter respectively.

If you're installing fixed panel installations at this location, tilting your panels at an angle of about 8 degrees South would help maximise total year-round production from your solar PV system.

However, there could be some local factors that might hinder optimal production from your solar panels here:

1) High rainfall: Bais experiences heavy rainfall especially during wet season which may reduce sunlight exposure on your panels and thus lower their efficiency.
Prevention: Regular maintenance checks should be carried out to ensure that rainwater doesn't accumulate on the surface of your panels as this could affect their performance over time.

2) Dust & dirt: Due to its tropical climate and rural nature dust or dirt accumulation on panel surfaces may occur reducing their efficiency.
Prevention: Regular cleaning will help maintain high levels of productivity from these panels

3) Typhoons/storms: The Philippines is prone to typhoons which could damage or disrupt operations.
Prevention: Install sturdy mounting systems designed for high wind loads and consider insurance coverage against such natural disasters

In conclusion though there are few challenges considering weather conditions; however with regular maintenance checks/cleaning and sturdy installation, Bais can be a good location for solar 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 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 Bais

Seasonal solar PV output for Latitude: 9.5875, Longitude: 123.1224 (Bais, 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 5.82kWh/day in Summer.

Average 5.13kWh/day in Autumn.

Average 4.63kWh/day in Winter.

Average 6.09kWh/day in Spring.

Ideally tilt fixed solar panels 8° South in Bais, Philippines

To maximize your solar PV system's energy output in Bais, Philippines (Lat/Long 9.5875, 123.1224) throughout the year, you should tilt your panels at an angle of 8° 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: 9.5875, Longitude: 123.1224, the ideal angle to tilt panels is 8° South

Seasonally adjusted solar panel tilt angles for Bais, 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 Bais, Philippines. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 8° 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 Bais, 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 Bais, 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 Bais, Philippines

Bais, Philippines is located in the Central Visayas region of the country. The topography of this area is generally flat with slight elevation towards the interior. It is a coastal city surrounded by water bodies on one side and land on another. The terrain features mainly plains which are highly suitable for agriculture.

As for large-scale solar photovoltaic (PV) installations, these require areas with high sunlight exposure and relatively flat terrain for maximum efficiency. Considering Bais's geographical location near the equator, it receives substantial sunlight throughout the year making it a good candidate for solar power generation.

The following areas could potentially be well-suited to large-scale solar PV:

1. Flat agricultural lands: These are ideal as they provide ample space and sunlight.
2. Coastal areas: While these may be prone to higher levels of salt mist corrosion, they also offer vast unobstructed spaces that receive plenty of sunlight.
3. Rooftops in urban or suburban areas: Utilizing rooftops can help save space while still generating significant amounts of energy.

However, feasibility studies should be conducted prior to installation in order to assess factors such as local climate conditions, soil quality (for ground-mounted systems), potential environmental impact, grid connectivity issues among others.

Please remember that while Bais has potential due its geographic location and topography there are many other factors like socio-economic conditions or local regulations that need to be considered before setting up a large scale solar project.

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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