Solar PV Analysis of Glen Mills, United States
Glen Mills, Pennsylvania, located in the Northern Temperate Zone, offers a moderate potential for solar energy generation throughout the year. The location's solar output varies significantly across seasons, presenting both opportunities and challenges for solar PV installations.
Seasonal Solar Performance
Summer stands out as the most productive season, with an impressive daily output of 6.47 kWh per kW of installed solar capacity. Spring follows closely, generating 5.62 kWh/day. These seasons provide excellent conditions for solar energy production, with longer days and more direct sunlight.
Autumn sees a noticeable decrease in output, dropping to 3.79 kWh/day. Winter presents the greatest challenge, with production falling to just 2.32 kWh/day per kW installed. This significant seasonal variation highlights the importance of proper system sizing to meet year-round energy needs.
Optimal Panel Installation
For fixed panel installations in Glen Mills, the ideal tilt angle is 35 degrees facing South. This angle maximizes total year-round production, balancing the varying sun positions across seasons. It's particularly effective in capturing more sunlight during the less productive autumn and winter months while still performing well in spring and summer.
Environmental Considerations
While Glen Mills doesn't face extreme environmental challenges for solar production, there are some factors to consider:
- Snow accumulation in winter can temporarily reduce panel efficiency
- Tree coverage and shading from nearby structures may impact some installations
To mitigate these issues, installers should consider using snow-shedding panel designs and carefully assess potential shading throughout the year. Regular panel cleaning and maintenance can also help maintain optimal performance.
Conclusion
Overall, Glen Mills presents a favorable location for solar PV installations, with particularly strong potential in spring and summer. While winter production is notably lower, proper system design and maintenance can ensure satisfactory year-round performance. The moderate climate and lack of extreme environmental factors make it a suitable area for long-term solar energy investment.
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 Glen Mills
Seasonal solar PV output for Latitude: 39.904, Longitude: -75.5089 (Glen 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:
Ideally tilt fixed solar panels 35° South in Glen Mills, United States
To maximize your solar PV system's energy output in Glen Mills, United States (Lat/Long 39.904, -75.5089) 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.
Seasonally adjusted solar panel tilt angles for Glen 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 Glen Mills, 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 |
|---|---|---|---|
| 23° South in Summer | 44° South in Autumn | 55° South in Winter | 33° 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 Glen 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 Glen Mills, 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 Glen Mills, United States
The area around Glen Mills, Pennsylvania, is characterized by gently rolling hills and shallow valleys typical of the Piedmont region. This topography is the result of millions of years of erosion of ancient mountains, leaving behind a landscape of low, rounded hills interspersed with small streams and rivers.
The terrain in and around Glen Mills is not particularly steep or mountainous, but it does have noticeable elevation changes. The area features a mix of open fields, wooded areas, and suburban developments. Small creeks and tributaries of larger rivers, such as Chester Creek and Ridley Creek, wind through the landscape, creating subtle valleys and drainage patterns.
For large-scale solar PV installations, the most suitable areas nearby would likely be found in the more open, flatter sections of land. These areas are typically former agricultural fields or large cleared spaces that haven't been developed for residential or commercial use. The ideal locations would have minimal shading from trees or buildings and would be oriented to maximize exposure to sunlight throughout the day.
Some potentially suitable areas for solar PV development might include:
- Open fields to the west and southwest of Glen Mills, where the terrain tends to be flatter and more expansive
- Cleared areas along major roadways, such as US Route 1 or Route 322, where there are often larger parcels of undeveloped land
- Former industrial or commercial sites that are no longer in use, which could be repurposed for solar energy production
It's important to note that while the topography around Glen Mills is generally favorable for solar PV, other factors such as local zoning regulations, environmental considerations, and proximity to electrical infrastructure would also play crucial roles in determining the feasibility of large-scale solar installations in the area.
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
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 30th of July 2024
Last Updated: Monday 21st of July 2025
Tell Us About Your Work
We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.
Feeling generous?
Share this with your friends!
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.
