Purcell, Oklahoma presents a moderately favorable location for year-round solar energy generation, though with significant seasonal variations that potential solar installers should carefully consider.

Seasonal Solar Performance

The solar energy output at this location shows dramatic differences throughout the year. Summer delivers the strongest performance at 7.14 kWh per day per kW of installed capacity, making it an excellent time for solar generation. Spring provides good production levels at 5.45 kWh per day, while autumn drops to 4.81 kWh daily. Winter presents the most challenging period with only 3.15 kWh per day, representing less than half of summer's output. This seasonal pattern means that while summer months will likely generate surplus energy that could offset electricity costs or feed back into the grid, winter months will require significantly more grid electricity or battery storage to meet household energy needs.

Optimal Panel Installation

For fixed solar panel installations in Purcell, the ideal tilt angle is 31 degrees facing south to maximize total year-round energy production. This angle represents the optimal compromise across all seasons, balancing the sun's varying position throughout the year.

Local Environmental Challenges

Oklahoma's location in "Tornado Alley" presents unique challenges for solar installations. The state experiences frequent severe thunderstorms, hail, tornadoes, and high winds that can damage solar equipment. Additionally, Oklahoma's continental climate brings hot summers and occasional ice storms in winter. Dust and debris from the state's agricultural activities and occasional dust storms can accumulate on solar panels, reducing their efficiency over time.

Protective Measures for Solar Systems

Several strategies can help protect solar investments in this environment:

• Install panels rated for high wind loads and impact resistance from hail
• Use reinforced mounting systems designed for severe weather conditions
• Consider micro-inverters or power optimizers to minimize system-wide outages from individual panel damage
• Implement regular cleaning schedules to remove dust and debris accumulation
• Install monitoring systems to quickly identify performance issues or damage

Regular maintenance becomes particularly important in Oklahoma's challenging weather environment. While the location offers decent solar potential, especially during summer months, the seasonal variation and weather-related risks require careful planning and robust installation practices to ensure long-term system performance and reliability.

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 Purcell

Seasonal solar PV output for Latitude: 35.0137, Longitude: -97.3611 (Purcell, 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 Purcell, United States

To maximize your solar PV system's energy output in Purcell, United States (Lat/Long 35.0137, -97.3611) 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 Purcell, 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 Purcell, 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	39° South in Autumn	50° 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 Purcell, 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 Purcell, 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 Purcell, United States

Topography Around Purcell, Oklahoma

Purcell sits in the heart of central Oklahoma within the relatively flat terrain characteristic of the Great Plains region. The landscape surrounding this community consists primarily of gently rolling prairie land with minimal elevation changes, creating an expansive view across agricultural fields and grasslands that stretch toward the horizon in most directions. The area lies within the Canadian River valley system, with the Canadian River flowing roughly ten miles to the north of Purcell. This proximity to the river valley creates some subtle variations in the otherwise predominantly flat topography, with occasional low ridges and gentle slopes leading down toward the waterway. The elevation in and around Purcell typically ranges from approximately 1,100 to 1,200 feet above sea level, with most variations being gradual rather than dramatic. The terrain consists largely of fertile agricultural land that has been shaped by centuries of prairie grass growth and more recent farming activities. Native vegetation in undeveloped areas includes typical Great Plains grasses and scattered clusters of oak and cottonwood trees, particularly near water sources and drainage areas. The soil composition is generally stable clay and sandy loam, which provides good foundation characteristics for development projects.

Optimal Areas for Large-Scale Solar Development

The topographical characteristics around Purcell present several advantages for large-scale solar photovoltaic installations. The most suitable areas would be the expansive flat to gently sloping agricultural fields that surround the community, particularly those located south and southwest of town where the terrain is most consistently level and experiences minimal shading from natural features. Areas with slight southern-facing slopes would be particularly beneficial for solar installations, as they naturally optimize panel positioning for maximum sun exposure throughout the day. The relatively treeless prairie landscape eliminates most concerns about vegetation-related shading, though developers would need to consider the scattered tree lines that typically follow creek beds and property boundaries. The stable soil conditions across much of the surrounding agricultural land provide excellent foundation support for solar mounting systems. Fields that are currently used for wheat, corn, and cattle grazing could potentially be converted to solar use, though developers would need to work with local landowners and consider agricultural land preservation policies. Transportation infrastructure accessibility represents another important factor in site selection. Areas near existing county roads and state highways would be preferable for construction access and ongoing maintenance operations. The flat terrain simplifies both initial construction logistics and long-term accessibility for maintenance crews and equipment. Environmental considerations favor locations away from the Canadian River floodplain to the north, focusing instead on the higher, well-drained prairie areas that are less susceptible to flooding or drainage issues. The consistent wind patterns across the open prairie also provide natural cooling benefits for solar panels, which can improve their operational efficiency.

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.