Marmaduke, Arkansas in the United States offers varying potential for solar energy generation throughout the year. This Northern Temperate Zone location experiences significant seasonal fluctuations in solar production capacity.

Solar panels in Marmaduke generate their highest output during summer months, producing approximately 6.80kWh per day for each kilowatt of installed capacity. Spring follows as the second most productive season with 5.57kWh/day, while autumn yields a moderate 4.28kWh/day. Winter performance drops considerably to just 2.44kWh/day per installed kilowatt.

For residents considering fixed solar panel installations in Marmaduke, the optimal tilt angle is 31 degrees facing South. This specific angle maximizes year-round energy production by balancing seasonal variations in the sun's position.

Environmental Factors Affecting Solar Production

Several environmental factors may impact solar energy generation in Marmaduke. The region experiences humid subtropical climate conditions with occasionally severe weather that can affect solar production.

Thunderstorms and heavy rainfall, particularly during spring and summer months, can temporarily reduce solar output. The area also faces potential for tornadoes, which could physically damage solar installations if not properly secured.

Marmaduke's location in the Mississippi River Valley means it experiences higher humidity levels than many other solar installation sites. This humidity can lead to increased dust and pollen accumulation on panels, gradually reducing efficiency if not regularly maintained.

Preventative Measures for Optimal Performance

To maximize solar energy production in Marmaduke, several preventative measures are recommended. Installing panels with robust mounting systems designed to withstand high winds can protect against storm damage. Regular cleaning schedules, particularly during pollen season and after dust storms, will maintain optimal efficiency.

Given the significant seasonal variation, considering a system with slight oversizing for winter months can help ensure more consistent year-round energy production. Additionally, installing panels with anti-reflective coatings can improve performance during the humid summer conditions typical of this region.

Snow accumulation during winter months may temporarily reduce output, so installing panels at the recommended 31-degree tilt not only optimizes year-round production but also promotes natural snow shedding, minimizing winter production losses.

Note: The Northern Temperate Zone extends from 35° latitude North up to 66.5° 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 Marmaduke

Seasonal solar PV output for Latitude: 36.1966, Longitude: -90.3801 (Marmaduke, 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:

 

Ideally tilt fixed solar panels 31° South in Marmaduke, United States

To maximize your solar PV system's energy output in Marmaduke, United States (Lat/Long 36.1966, -90.3801) throughout the year, you should tilt your panels at an angle of 31° 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 Marmaduke, 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 Marmaduke, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 31° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
20° South in Summer	41° South in Autumn	51° South in Winter	29° 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 Marmaduke, 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 Marmaduke, 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.

Topography for solar PV around Marmaduke, United States

Topography Around Marmaduke, Arkansas

Marmaduke is situated in Greene County in northeastern Arkansas, in a region characterized predominantly by flat to gently rolling terrain. The area lies within what geographers identify as the Mississippi Alluvial Plain, often called the Arkansas Delta. This vast flatland was formed over millennia by sediment deposits from the Mississippi River and its tributaries. The landscape around Marmaduke features an elevation of approximately 270-290 feet above sea level, with minimal variation across the immediate vicinity. This remarkably level topography is the result of ancient flooding cycles that deposited rich alluvial soil throughout the region. The flat nature of the terrain means there are few natural obstacles like hills or valleys that would create significant shadows or complicate construction projects. Water features are notable in the area's topography. Several small streams and drainage channels crisscross the landscape, including the nearby Cache River to the east. These waterways have historically shaped the local environment, contributing to the formation of occasional wetland areas during periods of heavy rainfall. Despite these water features, much of the land has been drained and modified for agricultural purposes over the past century.

Optimal Areas for Solar PV Development

The expansive flat terrain surrounding Marmaduke presents numerous advantages for large-scale solar photovoltaic development. The most suitable locations would be the agricultural lands that dominate the landscape for miles in all directions. These areas offer several key benefits for solar installations: The agricultural fields to the west and northwest of Marmaduke are particularly promising for solar development. These areas feature extensive tracts of level farmland with minimal tree cover, providing unobstructed exposure to sunlight throughout the day. The flat topography eliminates concerns about terrain-based shading that might otherwise reduce energy collection efficiency. Former croplands or less productive agricultural areas would be ideal candidates for solar conversion. The soil composition in these areas—primarily silt loam and sandy loam—offers good stability for mounting systems without requiring extensive ground preparation. Additionally, these locations typically already have access to rural roads, simplifying construction logistics and maintenance access. Areas slightly elevated above potential flood zones would be preferable, as the region does experience occasional flooding from heavy precipitation events. While much of the surrounding land has been modified with drainage systems for agriculture, selecting sites with natural slight elevation advantages would provide additional protection for solar infrastructure investments. The extensive open space available in the rural areas surrounding Marmaduke means that large-scale solar installations could be developed with minimal impact on residential communities. The relatively sparse population density in the surrounding countryside provides ample opportunity for solar development without creating conflicts with existing land uses.

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!

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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.