Gurabo, Puerto Rico, situated at latitude 18.258 and longitude -65.9707, offers a promising location for solar energy generation throughout the year. This tropical setting benefits from consistent sunlight, with seasonal variations primarily characterized by wet and dry periods rather than traditional four-season cycles.

Solar Energy Potential

The solar energy potential in Gurabo is relatively stable across the year, with some fluctuations between seasons. Spring emerges as the most productive period, yielding an impressive 7.12 kWh per day for each kilowatt of installed solar capacity. Summer follows closely with 6.60 kWh/day, while autumn and winter show slightly reduced but still significant outputs of 5.88 kWh/day and 5.31 kWh/day, respectively. These figures indicate that Gurabo maintains a strong solar energy potential year-round, with the highest production occurring during the spring months. The consistent sunlight in this tropical location contributes to the relatively small variations between seasons, making it an attractive site for solar PV installations.

Optimal Panel Tilt

For fixed solar panel installations in Gurabo, the ideal tilt angle to maximize year-round energy production is 17 degrees facing South. This angle has been calculated considering the location's latitude, daily solar elevation angles, and weighted by daily PV potential using NASA's solar irradiance data.

Environmental Considerations

While Gurabo's tropical climate is generally favorable for solar energy production, there are some environmental factors to consider: 1. Hurricane risk: Puerto Rico is susceptible to hurricanes, which can potentially damage solar installations. 2. High humidity: The tropical climate can lead to increased moisture, potentially affecting solar panel efficiency and longevity. To mitigate these risks, several preventative measures can be implemented: - Use hurricane-resistant mounting systems and high-quality, durable panels designed to withstand strong winds. - Install proper drainage systems to prevent water accumulation on panels. - Implement regular cleaning and maintenance routines to combat the effects of humidity and ensure optimal panel performance. - Consider micro-inverter or power optimizer systems, which can help maintain overall system performance even if individual panels are affected by shading or damage. By addressing these factors during installation and maintenance, solar energy systems in Gurabo can capitalize on the location's excellent year-round solar potential while minimizing potential environmental impacts.

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 Gurabo

Seasonal solar PV output for Latitude: 18.258, Longitude: -65.9707 (Gurabo, 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 Gurabo, Puerto Rico

To maximize your solar PV system's energy output in Gurabo, Puerto Rico (Lat/Long 18.258, -65.9707) 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 Gurabo, 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 Gurabo, 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	34° 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 Gurabo, 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 Gurabo, 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 Gurabo, Puerto Rico

The topography around Gurabo, Puerto Rico is characterized by a mix of gently rolling hills and flat lowlands. Gurabo is situated in the eastern part of Puerto Rico's central region, nestled in a valley surrounded by higher terrain. To the north and south of the town, the landscape gradually rises into more elevated areas with steeper slopes and occasional small peaks.

The area is part of the island's interior uplands, which transition from the coastal plains to the central mountain range. Rivers and streams crisscross the region, including the Gurabo River, which flows through the town. These waterways have carved shallow valleys and contributed to the undulating nature of the terrain.

For large-scale solar PV installations, the most suitable areas nearby would be the flatter portions of land, particularly in the valley where Gurabo is located and in the surrounding lowlands. These areas offer several advantages for solar energy development:

• They have more consistent exposure to sunlight throughout the day, with fewer obstructions from hills or mountains.
• The relatively level ground reduces the need for extensive land preparation and makes construction and maintenance easier.
• These areas are often already cleared for agriculture or other uses, minimizing the need for deforestation.

Some specific locations that might be well-suited for solar PV projects include:

• The agricultural lands to the east and southeast of Gurabo, where there are expanses of open, flat terrain.
• Areas along the valley floor, following the course of the Gurabo River, where the land is generally flat and accessible.
• Cleared plateaus or gentler slopes on the surrounding hills, which could provide elevated positions with good sun exposure.

It's important to note that while these areas may be topographically suitable, other factors such as land ownership, environmental considerations, and proximity to power infrastructure would also need to be taken into account when planning large-scale solar PV installations.

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

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