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Flag of United StatesSolar PV Analysis of Telford, United States

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

Telford, Pennsylvania offers moderately favorable conditions for year-round solar energy generation, though with significant seasonal variations typical of its Northern Temperate Zone location.

Seasonal Solar Performance

The solar energy output at this location shows a clear seasonal pattern. Summer delivers the highest production at 5.96 kWh per day per kilowatt of installed solar capacity, making it the peak generation season. Spring follows closely behind with strong performance at 5.32 kWh per day, representing excellent conditions for solar energy production. Autumn sees a notable decline to 3.37 kWh per day, while winter presents the most challenging period with only 2.11 kWh per day. This winter reduction to roughly one-third of summer output is typical for locations at this latitude but still represents viable solar generation. For optimal year-round performance, fixed solar panels should be tilted at 35 degrees facing south. This angle maximizes total annual energy production by accounting for the sun's changing position throughout the seasons and the varying solar irradiance levels at this specific latitude.

Local Factors Affecting Solar Production

Several environmental and weather factors in the Telford area can impact solar panel efficiency and require consideration during installation:
  • Snow accumulation: Winter weather can cause snow to cover panels, completely blocking energy production until cleared
  • Ice formation: Freezing conditions may create ice buildup on panel surfaces, reducing light transmission
  • Deciduous tree coverage: The region's abundant deciduous trees provide seasonal shading that varies throughout the year
  • Atmospheric moisture: Humid conditions common in Pennsylvania can reduce solar irradiance reaching the panels

Preventative Installation Measures

To maximize solar energy production despite these challenges, several installation strategies prove effective. Positioning panels with adequate tilt helps snow slide off naturally rather than accumulating on flat surfaces. Maintaining clear sight lines to the southern sky by trimming or removing nearby vegetation prevents shading issues. Installing panels with proper spacing between rows prevents one row from casting shadows on another, particularly important during winter months when the sun sits lower in the sky. Using high-quality mounting systems that can handle snow loads and ice formation ensures panels remain secure and properly positioned. Regular maintenance access should be planned during installation, allowing for safe snow removal when necessary and periodic cleaning to remove dust, pollen, and other debris that can accumulate on panel surfaces 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 Telford

Seasonal solar PV output for Latitude: 40.322, Longitude: -75.328 (Telford, 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 5.96kWh/day in Summer.
Autumn
Average 3.37kWh/day in Autumn.
Winter
Average 2.11kWh/day in Winter.
Spring
Average 5.32kWh/day in Spring.

 

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

To maximize your solar PV system's energy output in Telford, United States (Lat/Long 40.322, -75.328) 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: 40.322, Longitude: -75.328, the ideal angle to tilt panels is 35° South

Seasonally adjusted solar panel tilt angles for Telford, 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 Telford, 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 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 Telford, United States as follows: In Summer, set the angle of your panels to 24° 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 Telford, 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 Telford, 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 Telford, 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 Telford, United States

Topographical Features of the Telford Area

The area around Telford in Pennsylvania sits within the southeastern portion of the state, characterized by gently rolling hills and relatively modest elevation changes typical of the Piedmont region. This landscape represents a transitional zone between the more mountainous terrain to the northwest and the flatter coastal plains extending toward Philadelphia and the Delaware River valley.

The terrain in this region generally slopes from northwest to southeast, with elevations ranging from approximately 200 to 600 feet above sea level. The topography consists primarily of broad, rounded hills separated by shallow valleys, creating a undulating landscape that rarely presents steep gradients or dramatic elevation changes. Small creeks and tributaries have carved gentle valleys through the area, contributing to the overall rolling character of the land.

Agricultural fields and suburban developments dominate much of the visible landscape, taking advantage of the relatively flat to gently sloping terrain. The soil composition includes clay, silt, and weathered rock materials typical of the Piedmont geological formation, which generally provides stable foundation conditions for construction projects.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for extensive solar photovoltaic installations in the Telford vicinity would be the broader hilltops and gentle south-facing slopes that characterize much of the surrounding countryside. These elevated areas typically offer unobstructed exposure to sunlight throughout the day while maintaining relatively level ground that minimizes construction and installation challenges.

Agricultural areas with predominantly flat to gently rolling terrain present excellent opportunities for solar development, particularly those fields that currently support row crops or pastureland. The existing cleared land eliminates the need for extensive tree removal, while the open character of the landscape reduces potential shading issues from nearby structures or vegetation.

Areas with southern exposures on the broader hill slopes would be particularly advantageous, as they naturally orient toward optimal sun angles throughout most of the year. The gentle gradients common in this region allow for efficient panel placement without requiring extensive grading or specialized mounting systems designed for steep terrain.

The relatively stable geology of the Piedmont region provides favorable conditions for the foundation systems required by large solar installations. The absence of extreme topographical features such as steep ridges, deep valleys, or rocky outcroppings makes site preparation more straightforward and cost-effective compared to more mountainous regions.

Transportation infrastructure in the area, including access to major roads and highways, supports the logistical requirements of large-scale solar projects. The proximity to existing electrical transmission infrastructure also represents an advantage for connecting solar installations to the regional power grid.

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 Telford, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 22nd 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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