Eufaula, Oklahoma presents a moderately favorable location for year-round solar energy generation, though with significant seasonal variation typical of its Northern Temperate Zone position. The location experiences its peak solar production during summer months, generating 6.93 kWh per day per kilowatt of installed solar capacity.

Seasonal Solar Performance

Summer represents the optimal period for solar energy generation at this location, producing nearly 2.5 times more electricity than the winter months. Spring offers the second-best performance at 5.21 kWh per day per kW, making it another productive season for solar installations. Autumn provides moderate output at 4.56 kWh per day per kW, while winter shows the lowest production at just 2.72 kWh per day per kW. For maximum year-round energy production, solar panels should be installed at a fixed tilt angle of 31 degrees facing south. This optimal angle accounts for the sun's varying elevation throughout the year and maximizes total annual electricity generation.

Environmental and Weather Challenges

Several local factors in Eufaula, Oklahoma can significantly impact solar panel performance and require careful consideration during installation:

• Severe Weather Events: Oklahoma experiences frequent thunderstorms, tornadoes, and hail storms that can damage solar panels and mounting systems
• High Humidity and Temperature: Summer heat and humidity can reduce panel efficiency and accelerate equipment degradation
• Ice Storms: Winter ice accumulation can block sunlight and potentially damage panels with excessive weight
• Dust and Debris: Agricultural activity and wind can deposit dust, pollen, and organic matter on panel surfaces

Preventative Installation Measures

To maximize solar energy production despite these challenges, several protective measures should be implemented. Installing panels with reinforced mounting systems rated for high wind loads and impact resistance helps protect against severe weather damage. Using panels with higher temperature coefficients and ensuring adequate ventilation beneath panels helps maintain efficiency during hot summer months. Designing systems with steeper tilt angles can help ice and snow slide off more easily, while regular cleaning schedules become essential to remove dust and debris buildup. Installing micro-inverters or power optimizers can minimize the impact when individual panels are partially shaded or soiled. Professional installation with proper grounding and surge protection systems provides additional protection against lightning damage, which is particularly important given Oklahoma's frequent thunderstorm activity. Regular maintenance and inspection schedules help identify and address weather-related issues before they significantly impact energy production.

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 Eufaula, Oklahoma

Seasonal solar PV output for Latitude: 35.2872, Longitude: -95.5825 (Eufaula, Oklahoma, 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 Eufaula, Oklahoma, United States

To maximize your solar PV system's energy output in Eufaula, Oklahoma, United States (Lat/Long 35.2872, -95.5825) 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 Eufaula, Oklahoma, 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 Eufaula, Oklahoma, 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
19° South in Summer	40° 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 Eufaula, Oklahoma, 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 Eufaula, Oklahoma, 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 Eufaula, Oklahoma, United States

Topographical Features Around Eufaula

The landscape surrounding Eufaula, Oklahoma is characterized by gently rolling hills and low ridges that are typical of the eastern Oklahoma region. This area sits within the Arkansas River valley system, where the terrain has been shaped by centuries of water flow and erosion. The elevation changes are generally modest, creating a terrain that undulates rather than presenting dramatic elevation differences.

Eufaula Lake, one of Oklahoma's largest reservoirs, dominates the immediate area and significantly influences the local topography. The lake's shoreline creates numerous coves, peninsulas, and inlets that add complexity to the otherwise rolling landscape. The surrounding terrain slopes gradually toward the water body, with most hills rising no more than a few hundred feet above the lake level.

The region features a mix of cleared agricultural land, pastures, and forested areas dominated by oak, hickory, and pine trees. Creek valleys cut through the landscape, creating natural drainage patterns that flow toward Eufaula Lake and eventually into the Arkansas River system. These waterways have carved gentle valleys between the low hills, creating a varied but generally accessible terrain.

Soil and Ground Conditions

The underlying geology consists primarily of sedimentary rocks including sandstone and shale formations that are common throughout eastern Oklahoma. The soils in this region are generally well-drained and range from sandy loams on the higher elevations to clay-rich soils in the lower-lying areas near water sources.

Much of the area shows evidence of past agricultural use, with many fields that have been cleared and maintained over decades. This agricultural history has created large, relatively flat parcels of land that are already cleared of native vegetation and have established access routes.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for extensive solar photovoltaic installations would be the cleared agricultural lands and pastures that extend north and west of Eufaula Lake. These areas offer the best combination of relatively flat terrain, minimal tree cover, and existing infrastructure access. The rolling hills in these directions provide adequate drainage while maintaining gentle enough slopes for cost-effective solar panel installation.

The elevated plateaus and broad ridgetops scattered throughout the region present excellent opportunities for solar development. These higher elevations typically have good drainage, reduced risk of flooding, and often feature existing cleared land from agricultural use. The gradual slopes of these ridgetops allow for efficient panel layout while maintaining proper water runoff.

Areas to the southwest and northwest of the lake would be particularly well-suited for large installations, as they combine favorable topography with proximity to existing electrical transmission infrastructure. The terrain in these directions tends to be more consistently open, with fewer dense forest patches that would require extensive clearing.

The flatter agricultural areas along the major creek valleys could also accommodate solar installations, though careful attention would need to be paid to flood risk and seasonal water patterns. These valley floors often provide the largest contiguous parcels of cleared, relatively level land in the region.

Less suitable areas would include the heavily forested slopes immediately adjacent to the lake, the steeper hillsides with significant tree cover, and low-lying areas prone to seasonal flooding. The numerous coves and inlets around Eufaula Lake create irregular terrain that would be challenging and expensive to develop for large-scale solar projects.

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.