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Flag of United StatesSolar PV Analysis of Aston Mills, United States

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

Aston Mills, Pennsylvania presents a moderately favorable location for year-round solar energy generation, though with significant seasonal variations typical of the Northern Temperate Zone climate.

Seasonal Solar Production Performance

The solar energy output at this location shows considerable fluctuation throughout the year. Summer provides the strongest performance at 6.45 kWh per day per kilowatt of installed solar capacity, making it the peak season for energy generation. Spring follows as the second-best season with 5.57 kWh per day per kW, offering nearly equivalent production levels. Autumn sees a notable decline to 3.71 kWh per day per kW, while winter presents the most challenging conditions with only 2.25 kWh per day per kW. This winter figure represents less than half the summer production, highlighting the substantial seasonal variation that solar installations must account for in this region.

Optimal Installation Configuration

For fixed panel installations at Aston Mills, the ideal tilt angle is 34 degrees facing south to maximize total year-round solar energy production. This angle represents the optimal balance between capturing high summer sun and lower winter sun angles throughout the annual cycle.

Local Factors Affecting Solar Production

Several environmental and weather factors in the Pennsylvania region can significantly impact solar energy generation:
  • Snow accumulation during winter months can completely block solar panels
  • Frequent cloud cover and overcast conditions reduce solar irradiance
  • High humidity levels can create atmospheric haze that diminishes solar intensity
  • Deciduous tree coverage that may shade panels seasonally

Preventative Measures for Enhanced Performance

To mitigate these local challenges and optimize solar energy production, several installation strategies prove effective:
  • Install panels at steeper angles (closer to 40-45 degrees) to promote natural snow shedding
  • Ensure adequate spacing between panel rows to prevent shading and allow snow removal access
  • Position installations away from large deciduous trees or plan for seasonal pruning
  • Consider anti-reflective coatings on panels to maximize light capture during hazy conditions
  • Install monitoring systems to quickly identify production drops requiring maintenance
Regular maintenance becomes particularly important in this climate, including periodic cleaning to remove accumulated dust, pollen, and debris that can reduce efficiency. During winter months, safe snow removal procedures should be established to restore panel function after significant snowfall events. Overall, while Aston Mills experiences the typical seasonal challenges of northern temperate climates, proper installation techniques and maintenance practices can help ensure reliable solar energy production throughout the year.

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 Aston Mills

Seasonal solar PV output for Latitude: 39.8727, Longitude: -75.4574 (Aston Mills, 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 6.45kWh/day in Summer.
Autumn
Average 3.71kWh/day in Autumn.
Winter
Average 2.25kWh/day in Winter.
Spring
Average 5.57kWh/day in Spring.

 

Ideally tilt fixed solar panels 34° South in Aston Mills, United States

To maximize your solar PV system's energy output in Aston Mills, United States (Lat/Long 39.8727, -75.4574) throughout the year, you should tilt your panels at an angle of 34° 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: 39.8727, Longitude: -75.4574, the ideal angle to tilt panels is 34° South

Seasonally adjusted solar panel tilt angles for Aston Mills, 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 Aston Mills, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 34° South tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
23° South in Summer 44° South in Autumn 55° South in Winter 33° 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 Aston Mills, United States as follows: In Summer, set the angle of your panels to 23° facing South. In Autumn, tilt panels to 44° facing South for maximum generation. During Winter, adjust your solar panels to a 55° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 33° angle facing South to capture the most solar energy in Aston Mills, 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 Aston Mills, 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 Aston Mills, 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 Aston Mills, United States

Topographical Features Around Aston Mills

Aston Mills is situated in southeastern Pennsylvania, within Delaware County, positioned in the gently rolling terrain characteristic of the Piedmont physiographic province. The landscape surrounding this location features relatively modest elevation changes, with the area sitting at approximately 100 feet above sea level. The topography consists of low hills and shallow valleys that were shaped by ancient geological processes and more recent glacial activity during the ice ages.

The immediate vicinity exhibits a mix of suburban development interspersed with patches of woodland and open spaces. The terrain slopes gradually toward the Delaware River to the southeast, creating a series of gentle ridges and valleys that run roughly parallel to the major waterways in the region. These undulating hills rarely exceed 300 feet in elevation, making the overall landscape quite manageable for development purposes.

Stream corridors cut through the area, including tributaries that eventually drain into the Delaware River system. These waterways have carved modest valleys into the landscape, creating natural low points that contrast with the surrounding higher ground. The soils in the region are generally well-drained, consisting of a mixture of clay, silt, and sand deposited over underlying bedrock formations.

Optimal Areas for Large-Scale Solar Installation

The most suitable locations for extensive solar photovoltaic installations around Aston Mills would be the elevated plateau areas and south-facing slopes that characterize much of the surrounding countryside. These higher elevation zones offer several advantages, including minimal shading from surrounding terrain and optimal exposure to direct sunlight throughout the day.

The gently sloping hillsides that face southward present ideal conditions for solar panel placement, as they naturally orient toward the sun's path across the sky. These slopes also provide excellent drainage, which helps maintain stable ground conditions for mounting systems and reduces the risk of water-related complications during installation and maintenance.

Large tracts of relatively flat or gently rolling terrain to the west and northwest of Aston Mills would be particularly well-suited for utility-scale solar farms. These areas tend to have fewer trees and less dense development, providing the open space necessary for extensive panel arrays. The consistent elevation and minimal topographical obstacles in these zones would also help reduce installation costs and simplify the engineering requirements for large-scale projects.

Areas near ridge lines and elevated plateaus offer additional benefits, as they typically experience fewer issues with fog and atmospheric moisture that can sometimes affect lower-lying locations. The well-drained soils common to these higher elevations also provide stable foundations for solar mounting systems, reducing long-term maintenance concerns and ensuring reliable operation over the lifespan of the installation.

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 Aston Mills, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Wednesday 23rd of July 2025
Last Updated: Thursday 7th 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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Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide

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Calculate Your Optimal Solar Panel Tilt Angle