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Flag of United StatesSolar PV Analysis of Dayton, Pennsylvania, United States

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

Dayton, Pennsylvania, located in the Northern Temperate Zone, 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 seasonal swings. Summer delivers the strongest performance at 6.08 kWh per day per kW of installed capacity, making it the prime season for solar generation. Spring follows as the second-best period with 5.20 kWh per day per kW, offering excellent solar production potential. Autumn sees a notable decline to 3.34 kWh per day per kW, while winter presents the most challenging conditions with only 1.85 kWh per day per kW. This represents more than a three-fold difference between peak summer and winter production.

Optimal Installation Configuration

For maximum year-round energy production at Dayton, Pennsylvania, solar panels should be installed at a fixed tilt angle of 35 degrees facing south. This angle has been calculated to optimize total annual output by accounting for the sun's changing position throughout the year and weighting for daily solar potential.

Local Environmental Challenges

Several environmental and weather factors in this Pennsylvania location can significantly impact solar energy production:
  • Snow accumulation: Winter weather can deposit snow on panels, completely blocking solar generation for days or weeks
  • Ice formation: Freezing conditions can create ice buildup that reduces panel efficiency
  • Cloud cover: The region experiences frequent overcast conditions, particularly during winter months
  • Tree coverage: Pennsylvania's heavily forested landscape can create shading issues
  • Atmospheric haze: Regional air quality and humidity can reduce solar irradiance

Preventative Installation Measures

To maximize solar production despite these challenges, several installation strategies prove effective:
  • Steeper tilt angles: Installing panels at angles steeper than the calculated optimum can help snow slide off more readily
  • Strategic spacing: Adequate spacing between panel rows prevents snow from one row shadowing another
  • Quality mounting systems: Robust mounting that can handle snow loads and ice expansion
  • Site selection: Choosing locations with minimal tree shading and good southern exposure
  • Regular maintenance access: Designing installations that allow for safe snow removal and cleaning

Overall Assessment

While Dayton, Pennsylvania offers decent solar potential during warmer months, the significant winter production decline and weather-related challenges make it a moderately suitable rather than ideal location for solar energy generation. Success depends heavily on proper installation techniques and realistic expectations about seasonal performance variations. The location works best for applications that can either store excess summer production or supplement winter generation with alternative energy sources. Property owners should plan for the winter production shortfall when sizing their solar installations.

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 Dayton, Pennsylvania

Seasonal solar PV output for Latitude: 40.8803, Longitude: -79.242 (Dayton, Pennsylvania, 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 6.08kWh/day in Summer.
Autumn
Average 3.34kWh/day in Autumn.
Winter
Average 1.85kWh/day in Winter.
Spring
Average 5.20kWh/day in Spring.

 

Ideally tilt fixed solar panels 35° South in Dayton, Pennsylvania, United States

To maximize your solar PV system's energy output in Dayton, Pennsylvania, United States (Lat/Long 40.8803, -79.242) throughout the year, you should tilt your panels at an angle of 35° 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: 40.8803, Longitude: -79.242, the ideal angle to tilt panels is 35° South

Seasonally adjusted solar panel tilt angles for Dayton, Pennsylvania, 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 Dayton, Pennsylvania, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 35° South tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
24° South in Summer 45° South in Autumn 56° South in Winter 34° 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 Dayton, Pennsylvania, United States as follows: In Summer, set the angle of your panels to 24° facing South. In Autumn, tilt panels to 45° facing South for maximum generation. During Winter, adjust your solar panels to a 56° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 34° angle facing South to capture the most solar energy in Dayton, Pennsylvania, 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 Dayton, Pennsylvania, 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 Dayton, Pennsylvania, 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 Dayton, Pennsylvania, United States

Topographical Features Around Dayton

The area surrounding Dayton in Pennsylvania is characterized by the rolling hills and valleys typical of the Appalachian Plateau region. This landscape features moderate elevation changes with ridgelines running generally northeast to southwest, creating a series of parallel valleys and hillcrests. The terrain is predominantly rural with a mix of agricultural fields, forested areas, and scattered residential development. The elevation in this region varies considerably, with valleys sitting at relatively low points while the surrounding ridges rise several hundred feet above the valley floors. The topography creates natural drainage patterns that flow toward larger waterways, with numerous small streams and creeks winding through the valleys. Much of the area maintains its natural woodland cover, particularly on steeper slopes and ridge tops.

Soil and Land Use Characteristics

The underlying geology consists primarily of sedimentary rocks typical of western Pennsylvania, with soils that support both agricultural activities and natural forest growth. Agricultural areas tend to concentrate in the broader valleys and gentler slopes, where farming operations can more easily access and work the land. These cleared agricultural areas often provide the most accessible flat or gently sloping terrain in the region. The forested areas, while extensive, are primarily located on steeper terrain that would require significant clearing and grading for large-scale development projects. The mix of hardwood and coniferous forests creates a diverse ecosystem but also presents challenges for land conversion projects.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations would be the agricultural fields and cleared areas situated on south-facing slopes and ridge tops. These locations offer the dual advantages of minimal tree clearing requirements and favorable solar exposure throughout the day. The gentler agricultural valleys, particularly those with southern exposure, would provide the easiest construction access while requiring minimal grading. Ridge top locations, while potentially offering excellent solar exposure, would need careful evaluation for construction accessibility and grid connection feasibility. The existing cleared agricultural land presents the most practical option for large installations, as it typically already has some level of road access and would require minimal environmental disruption compared to forested areas. Areas to avoid would include the steeper north-facing slopes, heavily forested regions that would require extensive clearing, and locations in narrow valleys where surrounding ridges might create shading issues during certain parts of the day. The numerous small waterways and wetland areas scattered throughout the region would also need to be carefully considered during site selection to ensure proper environmental compliance.

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 Dayton, Pennsylvania, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 17th of July 2025
Last Updated: Wednesday 6th 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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