Dorado, Puerto Rico, situated at latitude 18.4573 and longitude -66.2673, presents a favorable location for solar energy production throughout the year. This tropical setting benefits from consistent sunlight, with seasons primarily characterized by wet and dry periods rather than significant temperature variations.

Seasonal Solar Performance

The solar energy potential in Dorado remains relatively stable across all seasons, with only minor fluctuations. Spring emerges as the most productive season, generating an average of 6.78 kWh per day for each kilowatt of installed solar capacity. Summer follows closely behind at 6.53 kWh/day, while autumn and winter show slightly lower but still substantial outputs at 5.74 kWh/day and 5.28 kWh/day, respectively.

Optimal Panel Positioning

For fixed solar panel installations in Dorado, the ideal tilt angle to maximize year-round energy production is 17 degrees facing south. This angle takes into account the location's latitude and the sun's position throughout the year, ensuring optimal sunlight capture across all seasons.

Environmental Considerations

While Dorado's tropical climate is generally conducive to solar energy production, there are some environmental factors to consider: 1. Hurricane risk: Puerto Rico is vulnerable to hurricanes, which can potentially damage solar installations. To mitigate this risk, it's crucial to use high-quality, wind-resistant mounting systems and panels designed to withstand extreme weather conditions. 2. Salt air exposure: Dorado's coastal location means solar equipment may be exposed to salt air, which can accelerate corrosion. Using corrosion-resistant materials and applying protective coatings can help extend the lifespan of solar installations in this environment. 3. Rainfall: The region experiences a rainy season, typically from May to November. While rain can help keep panels clean, it may temporarily reduce solar output. Installing panels at the optimal angle can help with water runoff and minimize the impact on energy production. By addressing these factors during the installation process, solar energy systems in Dorado can maintain high levels of efficiency and durability, taking full advantage of the location's excellent solar potential 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 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 Dorado

Seasonal solar PV output for Latitude: 18.4573, Longitude: -66.2673 (Dorado, 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 Dorado, Puerto Rico

To maximize your solar PV system's energy output in Dorado, Puerto Rico (Lat/Long 18.4573, -66.2673) 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 Dorado, 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 Dorado, 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
3° 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 Dorado, 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 Dorado, 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 Dorado, Puerto Rico

The topography around Dorado, Puerto Rico, is characterized by a diverse landscape that transitions from coastal lowlands to rolling hills as you move inland. Located on the northern coast of the island, Dorado features a relatively flat coastal plain that extends for several kilometers inland. This area is primarily composed of sandy beaches, mangrove swamps, and low-lying wetlands. As you move south from the coast, the terrain gradually becomes more undulating, with gentle hills and small valleys dotting the landscape. These hills are part of the larger Northern Karst region, which is known for its unique limestone formations and underground cave systems. The elevation generally increases as you travel further south, with some areas reaching heights of 100 to 200 meters above sea level. The region surrounding Dorado is also marked by numerous rivers and streams that flow northward from the central mountain range of Puerto Rico towards the Atlantic Ocean. These waterways have carved shallow valleys and created alluvial plains, contributing to the area's varied topography.

Potential Areas for Large-Scale Solar PV

When considering locations for large-scale solar photovoltaic (PV) installations near Dorado, several factors come into play, including available land, sun exposure, and minimal environmental impact. Based on the topography of the region, the following areas could be suitable for solar PV development: The coastal plain south of Dorado offers relatively flat terrain that could accommodate large solar arrays. This area receives ample sunlight throughout the year and has fewer obstacles that might cast shadows on the panels. However, care must be taken to avoid ecologically sensitive wetlands and mangrove forests. The gently rolling hills further inland present another opportunity for solar PV installations. These elevated areas often have good sun exposure and may be less prone to flooding than the coastal regions. Additionally, the slopes of these hills could be utilized to optimize the angle of solar panels for maximum energy capture. Former agricultural lands or brownfield sites in the vicinity of Dorado could also be repurposed for solar energy production. These areas often have the advantage of being already cleared and may have existing infrastructure that can be adapted for solar farm use. It's important to note that while the topography around Dorado offers potential for solar PV development, any large-scale project would require careful environmental assessment and consideration of local land use regulations. The unique karst landscape and biodiversity of the region should be preserved, and solar installations should be planned in a way that minimizes their impact on these valuable natural resources.

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.