Keams Canyon, Arizona presents a highly favorable location for year-round solar energy generation, with consistently strong performance across all seasons. This Northern Temperate Zone location demonstrates excellent solar potential throughout the year.
Seasonal Solar Performance
The location shows impressive energy output variations across seasons. Summer delivers the peak performance at 7.90 kWh per day per kW of installed solar capacity, making it the most productive time for solar generation. Spring follows closely behind with 7.69 kWh per day per kW, representing nearly equivalent performance to summer months. Autumn maintains solid production levels at 5.26 kWh per day per kW, while winter shows the lowest but still respectable output at 3.72 kWh per day per kW. Even during the least productive winter season, the location generates nearly half the energy of peak summer production, indicating reliable year-round solar potential.Optimal Panel Configuration
For maximum year-round energy production at Keams Canyon, solar panels should be installed at a fixed tilt angle of 31 degrees facing south. This angle has been calculated to optimize total annual solar output by accounting for the sun's changing position throughout the year and weighting the angles based on actual solar irradiance data and daily photovoltaic potential.Environmental and Weather Factors
Several local factors could potentially impact solar production at this Arizona location, though most can be effectively managed through proper installation practices. Dust accumulation represents the most significant challenge in this desert environment. Arizona's arid climate and frequent dust storms can create substantial buildup on solar panels, potentially reducing efficiency by 10-25% if left unaddressed. Regular cleaning schedules and installation of automatic cleaning systems can help maintain optimal performance. High temperatures during summer months may cause some efficiency reduction, as solar panels typically perform better in cooler conditions despite increased sunlight. Proper ventilation spacing behind panels and selecting temperature-resistant panel technologies can minimize these effects.Preventative Measures for Optimal Performance
- Install panels with adequate spacing for air circulation to reduce heat buildup
- Implement regular cleaning schedules or automated washing systems to combat dust accumulation
- Choose high-quality panels with good temperature coefficients for hot climate performance
- Consider micro-inverters or power optimizers to minimize impact from partial shading or soiling
- Ensure proper grounding and surge protection for occasional thunderstorm activity
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 Keams Canyon
Seasonal solar PV output for Latitude: 35.8125, Longitude: -110.1951 (Keams Canyon, 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 Keams Canyon, United States
To maximize your solar PV system's energy output in Keams Canyon, United States (Lat/Long 35.8125, -110.1951) 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 Keams Canyon, 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 Keams Canyon, 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 | 40° South in Autumn | 50° South in Winter | 28° 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 Keams Canyon, 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 Keams Canyon, United States.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - 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 Keams Canyon, United States
Topographical Features of Keams Canyon
Keams Canyon sits within the dramatic landscape of northeastern Arizona, positioned on the Colorado Plateau at an elevation of approximately 6,000 feet above sea level. The area is characterized by striking red sandstone formations, deep canyons, and expansive mesas that define much of the Hopi Reservation landscape. The canyon itself cuts through layered sedimentary rock, creating steep-walled gorges and narrow passages that have been carved over millennia by seasonal water flow. The surrounding terrain features a complex network of washes, arroyos, and tributary canyons that branch out from the main canyon system. These geological features create a landscape of alternating high plateaus and deeply incised valleys. The mesa tops provide relatively flat surfaces, while the canyon floors and sides present challenging topographical obstacles for development.Regional Terrain Characteristics
The broader region around Keams Canyon exhibits the classic high desert topography of the Colorado Plateau. Rolling hills and flat-topped mesas dominate the landscape, interspersed with occasional buttes and isolated rock formations. The terrain generally slopes toward the northeast, following the drainage patterns that eventually feed into the Little Colorado River system. Vegetation in the area is sparse, consisting primarily of desert shrubs, scattered juniper trees, and seasonal grasses. This relatively open landscape means fewer obstacles from tree cover, though the rocky terrain and variable elevation create their own challenges for large-scale development projects.Optimal Areas for Solar Development
The most suitable locations for large-scale solar photovoltaic installations would be found on the extensive mesa tops that surround Keams Canyon. These elevated plateaus offer several advantages, including relatively flat terrain that requires minimal grading, stable geological foundations, and unobstructed exposure to the sky. The mesa surfaces typically extend for several square miles, providing ample space for utility-scale solar arrays. Areas to the south and southwest of Keams Canyon appear particularly promising, where the terrain opens up into broader, more gently rolling high desert plains. These locations benefit from stable elevation changes and fewer of the deep washes and canyon systems that complicate construction and maintenance access near the canyon itself. The flat-topped mesas north and east of the canyon also present good opportunities, though access considerations become more important in these areas due to the more dissected nature of the landscape. These elevated surfaces would require careful planning for road access and electrical transmission infrastructure, but they offer excellent potential for solar development once these logistical challenges are addressed. Areas to avoid would include the canyon floors and steep-sided valleys, which not only present construction challenges but also suffer from reduced solar exposure due to shadowing from surrounding rock walls. The numerous washes and seasonal drainage areas throughout the region would also need to be carefully considered in any development planning to avoid flood-prone zones.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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Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Friday 8th 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.
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.




