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Flag of United StatesSolar PV Analysis of Monticello, Arkansas, United States

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Monticello, Arkansas, United States (by season)

Monticello, Arkansas presents a moderately favorable location for year-round solar energy generation, though with significant seasonal variations typical of its Northern Sub Tropical climate zone.

Seasonal Solar Performance

The solar energy output at this location varies considerably throughout the year. Summer provides the highest production at 6.67kWh per day per kW of installed capacity, making it the peak season for solar generation. Spring follows as the second-best performing season with 5.66kWh per day per kW, offering strong solar production as daylight hours increase and weather conditions improve. Autumn sees a notable decline to 4.56kWh per day per kW as the sun angle decreases and weather patterns shift. Winter presents the most challenging conditions with only 2.64kWh per day per kW, representing less than 40% of summer production levels.

Optimal Installation Configuration

For fixed panel installations at this Monticello location, the ideal tilt angle is 29 degrees facing South to maximize total year-round production. This angle optimization takes into account the weighted solar potential throughout all seasons and the site's specific latitude of 33.6256 degrees North.

Local Environmental Factors

Several environmental and weather factors in the Monticello area can impact solar energy production:
  • High humidity levels typical of Arkansas can reduce panel efficiency and create more frequent condensation issues
  • Severe weather events including thunderstorms, hail, and occasional ice storms pose risks to solar equipment
  • Heavy rainfall during spring and summer months can create temporary shading and debris accumulation
  • Dust and pollen buildup, particularly during spring allergy seasons, can reduce panel efficiency

Preventative Measures for Enhanced Production

To maximize solar energy production despite these challenges, several installation strategies should be considered. Panels should be mounted with adequate ventilation spacing to combat humidity effects and allow proper air circulation for cooling. Using tempered glass panels rated for hail resistance helps protect against severe weather damage. Installing panels at the optimal 29-degree tilt naturally assists with self-cleaning during rainfall, though periodic manual cleaning may still be necessary during heavy pollen seasons. Proper grounding and surge protection systems are essential given the area's thunderstorm activity. Regular maintenance scheduling should account for seasonal factors, with more frequent inspections planned after severe weather events and during peak pollen periods. Consider installing monitoring systems to quickly identify performance drops that might indicate debris accumulation or weather damage.

Note: The Northern Sub Tropics extend from 23.5° latitude North up to 35° latitude.

So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 4253 locations across the United States. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in the United States by location

Solar output per kW of installed solar PV by season in Monticello, Arkansas

Seasonal solar PV output for Latitude: 33.6256, Longitude: -91.7989 (Monticello, Arkansas, United States), 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:

Summer
Average 6.67kWh/day in Summer.
Autumn
Average 4.56kWh/day in Autumn.
Winter
Average 2.64kWh/day in Winter.
Spring
Average 5.66kWh/day in Spring.

 

Ideally tilt fixed solar panels 29° South in Monticello, Arkansas, United States

To maximize your solar PV system's energy output in Monticello, Arkansas, United States (Lat/Long 33.6256, -91.7989) throughout the year, you should tilt your panels at an angle of 29° 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.

The sun
At Latitude: 33.6256, Longitude: -91.7989, the ideal angle to tilt panels is 29° South

Seasonally adjusted solar panel tilt angles for Monticello, Arkansas, United States

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 Monticello, Arkansas, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 29° South tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
17° South in Summer 38° South in Autumn 49° South in Winter 26° South in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Monticello, Arkansas, United States as follows: In Summer, set the angle of your panels to 17° facing South. In Autumn, tilt panels to 38° facing South for maximum generation. During Winter, adjust your solar panels to a 49° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 26° angle facing South to capture the most solar energy in Monticello, Arkansas, United States.

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 Monticello, Arkansas, United States

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 Monticello, Arkansas, United States.

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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Monticello, Arkansas, United States

Topographical Features Around Monticello, Arkansas

The landscape surrounding Monticello in southeastern Arkansas is characterized by relatively flat to gently rolling terrain typical of the Mississippi River Delta region. This area sits within the West Gulf Coastal Plain, where elevations generally range from 150 to 300 feet above sea level. The topography consists primarily of low hills interspersed with river valleys and floodplains, creating a moderately undulating landscape that lacks significant elevation changes or steep slopes. The region features numerous waterways including the Ouachita River system and various tributaries that have carved shallow valleys through the terrain over millennia. These river corridors create natural drainage patterns and support wetland areas, particularly during seasonal flooding periods. Between the waterways, broad ridges and gentle slopes dominate the landscape, often covered with mixed pine and hardwood forests or converted to agricultural use.

Soil Composition and Land Use Patterns

The soil composition in this area reflects its geological history, with sandy loams and clay-based soils predominating across much of the region. These soil types, combined with adequate rainfall, have historically supported both forestry and agricultural activities. Large portions of the landscape remain forested, while other areas have been cleared for row crop agriculture, particularly cotton, soybeans, and rice production in the lower-lying areas near water sources. The existing land use patterns show a mix of commercial timber operations, agricultural fields, and scattered residential development. This diverse land use creates a patchwork of open areas and forested sections that varies significantly in suitability for large-scale solar development.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for extensive solar photovoltaic installations around Monticello would be the cleared agricultural fields and former agricultural lands situated on the higher, well-drained ridges. These elevated areas offer several advantages including reduced flood risk, minimal tree coverage, and relatively flat terrain that requires less grading and site preparation. Areas that have been previously cleared for row crop agriculture present particularly attractive opportunities, as the land is already open and typically has established access roads. The gentle slopes found on these higher elevations provide adequate drainage while remaining flat enough to accommodate large arrays of solar panels without excessive earthwork or specialized mounting systems. Former timber lands that have been recently harvested also represent prime candidates for solar development. These areas often feature good access infrastructure from logging operations and have minimal vegetation remaining, reducing clearing costs. The slightly rolling nature of much harvested timberland can actually benefit solar installations by providing natural drainage and reducing the risk of standing water around equipment.

Areas to Avoid for Solar Development

Locations near major waterways and in floodplains should generally be avoided due to periodic flooding risks and potential wetland regulations. The lower-lying areas near the Ouachita River and its tributaries, while often cleared for agriculture, may present challenges related to seasonal water accumulation and regulatory restrictions on development in flood-prone zones. Heavily forested areas, while potentially suitable from a topographical standpoint, would require extensive clearing operations that could prove economically challenging and environmentally sensitive. The dense mixed forests common throughout the region would involve significant upfront costs for tree removal and site preparation, making such locations less attractive than already-cleared alternatives. Areas with particularly sandy or poorly-draining soils might also present challenges for large-scale solar installations, as these conditions can complicate foundation work for mounting systems and access road construction. The varied soil composition across the region makes site-specific soil analysis important for any proposed development location.

United States solar PV Stats as a country

United States ranks 2nd in the world for cumulative solar PV capacity, with 95,209 total MW's of solar PV installed. This means that 3.40% of United States's total energy as a country comes from solar PV (that's 26th in the world). Each year United States is generating 289 Watts from solar PV per capita (United States ranks 15th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in United States?

Yes, there are several incentives for businesses wanting to install solar energy in the United States. These include federal tax credits, state and local rebates, net metering policies, and renewable energy certificates (RECs). Additionally, many states have enacted legislation that requires utilities to purchase a certain amount of electricity from renewable sources such as solar.

Do you have more up to date information than this on incentives towards solar PV projects in United States? Please reach out to us and help us keep this information current. Thanks!

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of Monticello, Arkansas, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 4th of August 2025
Last Updated: Friday 8th of August 2025

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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.

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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.

Calculate Your Optimal Solar Panel Tilt Angle