Cidra, Puerto Rico, located at 18.1722° N, 66.1621° W, offers a favorable environment for solar energy production throughout the year. This tropical location benefits from consistent sunlight, with seasons characterized more by wet and dry periods than significant temperature fluctuations.

Seasonal Solar Performance

Solar panel efficiency in Cidra remains relatively stable across seasons, with slight variations:

• Spring: 6.80 kWh/day (peak production)
• Summer: 6.56 kWh/day
• Autumn: 5.72 kWh/day
• Winter: 5.23 kWh/day (lowest production)

These figures represent the expected daily electricity output per kilowatt of installed solar capacity. The consistent performance throughout the year makes Cidra an excellent location for solar energy generation.

Optimal Panel Positioning

For fixed panel installations in Cidra, the ideal tilt angle to maximize year-round solar production is 17 degrees facing South. This angle optimizes exposure to sunlight throughout the year, accounting for the location's latitude and the Earth's elliptical orbit.

Environmental Considerations

While Cidra's climate is generally conducive to solar energy production, there are some environmental factors to consider:

1. Hurricane season: Puerto Rico is vulnerable to hurricanes, which can damage solar installations. To mitigate this risk, use sturdy mounting systems and panels rated for high wind speeds. Consider removable panels or systems that can be easily secured during extreme weather events.

2. Rainfall: The wet season may reduce solar efficiency due to cloud cover. Installing panels with anti-reflective coatings can help maximize energy capture during overcast conditions. Proper drainage systems should also be implemented to prevent water accumulation on panels.

3. Humidity: High humidity levels can potentially lead to accelerated degradation of solar equipment. Using corrosion-resistant materials and ensuring proper sealing of electrical components can help extend the lifespan of the solar installation.

By addressing these factors during installation and maintenance, solar energy systems in Cidra can achieve optimal performance and longevity, 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 42 locations across Puerto Rico. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Puerto Rico by location

Solar output per kW of installed solar PV by season in Cidra

Seasonal solar PV output for Latitude: 18.1722, Longitude: -66.1621 (Cidra, Puerto Rico), 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 17° South in Cidra, Puerto Rico

To maximize your solar PV system's energy output in Cidra, Puerto Rico (Lat/Long 18.1722, -66.1621) throughout the year, you should tilt your panels at an angle of 17° 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 Cidra, Puerto Rico

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 Cidra, Puerto Rico. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 17° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
2° South in Summer	24° South in Autumn	33° South in Winter	12° 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 Cidra, Puerto Rico

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 Cidra, Puerto Rico.

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 Cidra, Puerto Rico

The topography around Cidra, Puerto Rico, is characterized by a diverse landscape of rolling hills, valleys, and mountainous terrain. Located in the central region of the island, Cidra sits at an elevation of approximately 1,300 feet (400 meters) above sea level. The area is part of the Cordillera Central mountain range, which runs east to west across Puerto Rico. The surrounding landscape features a mix of steep slopes and gentler inclines, with numerous small rivers and streams carving through the terrain. Lush vegetation covers much of the area, with forests and agricultural lands interspersed throughout the region. The combination of hills and valleys creates a picturesque setting, typical of Puerto Rico's interior. To the north and east of Cidra, the terrain becomes increasingly mountainous, with higher elevations and more rugged landscapes. To the south and west, the topography gradually transitions to lower elevations as it approaches the coastal plains.

Potential Areas for Large-Scale Solar PV

When considering areas near Cidra for large-scale solar photovoltaic (PV) installations, several factors come into play. The ideal locations would have relatively flat or gently sloping terrain, good sun exposure, and minimal shading from surrounding mountains or vegetation. The areas to the south and southwest of Cidra offer promising potential for solar PV development. As the terrain becomes less mountainous and transitions towards the coastal plains, there are more expansive areas of relatively flat land. These regions typically receive ample sunlight throughout the year, making them suitable for solar energy production. Additionally, some of the broader valleys and plateaus within a 10-15 mile radius of Cidra could be considered for solar installations. While these areas may require some land clearing and grading, they offer the advantage of being closer to existing infrastructure and population centers. It's important to note that any large-scale solar PV project would need to carefully consider environmental impacts, land use regulations, and the preservation of agricultural areas. Detailed site assessments and environmental studies would be necessary to determine the most suitable locations while minimizing ecological disruption and maximizing energy production potential.

Puerto Rico solar PV Stats as a country

Puerto Rico ranks 48th in the world for cumulative solar PV capacity, with 491 total MW's of solar PV installed. Each year Puerto Rico is generating 154 Watts from solar PV per capita (Puerto Rico ranks 33rd in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in Puerto Rico?

Yes, there are several incentives for businesses wanting to install solar energy in Puerto Rico. The Puerto Rico Energy Commission (PREC) offers a net metering program that allows businesses to receive credits on their electricity bills for the excess energy they generate from their solar systems. Additionally, businesses may be eligible for federal tax credits and accelerated depreciation benefits. The PREC also provides grants and loans to help offset the cost of installing solar systems.

Do you have more up to date information than this on incentives towards solar PV projects in Puerto Rico? 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.