Solar Potential in Nacional, Dominican Republic

Nacional in the Dominican Republic offers excellent year-round solar energy potential, positioned at 18.4914° N, -69.9° W in the tropical Caribbean region. This location benefits from consistent sunlight throughout the year, with seasonal variations defined more by wet and dry periods than dramatic changes in daylight duration. The solar production data shows strong performance across all seasons. Spring yields the highest output at 6.97 kWh per day for each kilowatt of installed capacity. Summer follows closely with 6.49 kWh/day, while autumn generates 5.97 kWh/day. Even during winter, the location maintains solid production at 5.46 kWh/day per installed kilowatt.

Optimal Panel Installation

For maximizing year-round solar energy production in Nacional, fixed solar panels should be installed at a 17-degree tilt facing South. This specific angle has been calculated to optimize solar collection throughout the year based on the location's latitude and seasonal sun positions. The relatively consistent production across seasons makes Nacional an ideal location for solar PV systems, with only modest seasonal fluctuations compared to locations at higher latitudes. This consistency allows for more reliable energy planning and reduces the need for supplementary power sources during particular times of year.

Environmental Considerations

Despite the favorable conditions, several environmental factors warrant consideration when installing solar in Nacional:

• Hurricane exposure presents a significant risk, as the Dominican Republic lies within the Caribbean hurricane belt. Solar installations should use hurricane-rated mounting systems with reinforced frames and wind-resistant designs rated for local maximum wind speeds.
• Heavy rainfall during the wet season (primarily May to November) may temporarily reduce solar output. Installations should incorporate adequate drainage systems and panels with anti-soiling coatings to minimize rain-related efficiency losses.
• Salt air corrosion from the nearby Caribbean Sea can deteriorate components over time. Using marine-grade materials, stainless steel fasteners, and protective coatings will extend system longevity.

High humidity levels may also accelerate degradation of electrical components. Properly sealed junction boxes, weather-resistant inverters, and regular maintenance can mitigate these effects. Additionally, implementing a slightly steeper tilt than the mathematical optimum might improve self-cleaning from rainfall, reducing dust and salt accumulation. With proper system design addressing these environmental factors, Nacional remains an excellent location for solar energy production, with consistent output throughout the year and only moderate seasonal variations.

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 27 locations across Dominican Republic. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Dominican Republic by location

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

Seasonal solar PV output for Latitude: 18.4914, Longitude: -69.9 (Nacional, Dominican Republic), 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 Nacional, Dominican Republic

To maximize your solar PV system's energy output in Nacional, Dominican Republic (Lat/Long 18.4914, -69.9) 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 Nacional, Dominican Republic

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 Nacional, Dominican Republic. 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 Nacional, Dominican Republic

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 Nacional, Dominican Republic.

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 Nacional, Dominican Republic

Topography of Nacional, Dominican Republic

The area surrounding Nacional in the Dominican Republic features a diverse topographical landscape that transitions between coastal plains and higher elevations. Located near the capital city of Santo Domingo, this region sits on the southern coast of the island of Hispaniola. The terrain gradually rises from the Caribbean Sea coastline into a series of rolling hills and plateaus as one moves inland to the north. The immediate vicinity of Nacional (18.4914,-69.9) consists primarily of urban development interspersed with patches of open terrain. The land is relatively flat to gently undulating, with elevations typically ranging from near sea level to approximately 50 meters above sea level. This coastal plain extends several kilometers inland before the terrain begins to rise more noticeably. Moving northward from Nacional, the landscape gradually ascends toward the foothills of the Cordillera Central mountain range, though these major mountains are still quite distant from the immediate Nacional area. The transition zone features increasingly rolling terrain with moderate slopes and occasional small valleys formed by seasonal waterways.

Solar PV Potential Areas

Several nearby areas present favorable conditions for large-scale solar photovoltaic installations based on their topographical characteristics. The most suitable locations would be: The open plains extending to the west and northwest of Nacional offer ideal terrain for solar development. These areas feature relatively flat land with minimal shading obstacles, allowing for efficient arrangement of solar arrays without significant earthwork requirements. The gentle slopes in these directions also provide natural drainage while maintaining excellent solar exposure. The slightly elevated plateaus to the northeast of Nacional present another promising option. These areas combine favorable flat to gently rolling terrain with slightly higher elevation, potentially reducing concerns about coastal flooding or humidity effects on equipment. The open nature of these plateaus minimizes natural obstructions that could cast shadows on solar panels. Some of the agricultural lands to the east of Nacional, particularly where larger open fields exist, could be repurposed for solar installations. These areas already feature cleared land with established access routes and relatively level terrain, reducing development costs and environmental impact. Areas to avoid for solar development would include the more steeply sloped regions further north where terrain begins to rise more dramatically, any flood-prone lowlands near waterways, and the densely developed urban corridors where space is limited and land acquisition would be challenging. The moderate climate of the region, combined with these favorable topographical features, creates an environment where properly sited solar installations could operate efficiently throughout the year with minimal seasonal variations in production.

Dominican Republic solar PV Stats as a country

Dominican Republic ranks 49th in the world for cumulative solar PV capacity, with 490 total MW's of solar PV installed. Each year Dominican Republic is generating 45 Watts from solar PV per capita (Dominican Republic ranks 53rd in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in Dominican Republic?

Yes, there are incentives for businesses wanting to install solar energy in the Dominican Republic. The government offers a range of incentives including tax credits, grants and loans to encourage businesses to invest in renewable energy sources such as solar power. Additionally, the Dominican Republic has implemented a net metering system which allows businesses to sell excess electricity generated from their solar systems back into the grid at retail rates.

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