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Flag of United StatesSolar PV Analysis of Pennington, United States

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

Pennington, New Jersey, located at coordinates 40.3344, -74.795 in the Northern Temperate Zone, offers a moderately good location for solar PV energy generation, though with significant seasonal variations throughout the year.

Seasonal Solar Production

Solar energy production at this location shows substantial fluctuation across the seasons. Summer yields the highest output at 6.03kWh per day for each kilowatt of installed capacity. Spring follows as the second-most productive season with 5.43kWh/day per kW. Production drops significantly in autumn to 3.48kWh/day, while winter represents the lowest generation period with only 2.12kWh/day per kW of installed capacity.

This pattern means Pennington residents can expect nearly three times more solar energy production in summer compared to winter months. The strong performance during spring and summer makes these seasons ideal for maximizing solar energy generation, while autumn and particularly winter will require supplementary energy sources or storage solutions.

Optimal Panel Installation

For a fixed panel installation at this Pennington location, the ideal angle to tilt panels is 35 degrees facing South to maximize total year-round production. This specific angle balances the seasonal variations in sun position to optimize annual energy harvest.

Environmental and Weather Considerations

Several environmental factors could potentially impact solar production in Pennington:

  • Snow accumulation during winter months can temporarily reduce output unless panels are cleared
  • Tree coverage and shading may be significant in this suburban/rural area
  • Occasional severe weather including thunderstorms and potential hurricane remnants
  • Moderate humidity levels and atmospheric particulates that can slightly reduce panel efficiency

Preventative Measures

To maximize solar production despite these challenges, several preventative measures can be implemented. Installing panels at the recommended 35-degree tilt helps with natural snow shedding. Regular tree maintenance to prevent shading, especially on the southern exposure, is crucial. Using microinverters or power optimizers can minimize production losses from partial shading situations.

Additionally, high-quality panels with anti-soiling glass coatings will maintain better performance in dusty conditions. A monitoring system can alert homeowners to unexpected drops in production that might indicate maintenance needs. Finally, professional cleaning once or twice yearly can help maintain optimal efficiency.

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 Pennington

Seasonal solar PV output for Latitude: 40.3344, Longitude: -74.795 (Pennington, 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 6.03kWh/day in Summer.
Autumn
Average 3.48kWh/day in Autumn.
Winter
Average 2.12kWh/day in Winter.
Spring
Average 5.43kWh/day in Spring.

 

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

To maximize your solar PV system's energy output in Pennington, United States (Lat/Long 40.3344, -74.795) 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: 40.3344, Longitude: -74.795, the ideal angle to tilt panels is 35° South

Seasonally adjusted solar panel tilt angles for Pennington, 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 Pennington, 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 Pennington, 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 Pennington, 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 Pennington, 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 Pennington, 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 Pennington, United States

The topography around Pennington, New Jersey features gently rolling hills and shallow valleys characteristic of the Piedmont physiographic province. This region sits at the transition between the flat coastal plains to the south and east and the more rugged highlands of the Appalachian Mountains to the northwest. Pennington itself rests at an elevation of approximately 200 feet (61 meters) above sea level, with the surrounding landscape displaying modest variations in elevation. The area is defined by the Stony Brook watershed, with several streams and tributaries carving shallow valleys through the landscape. The terrain consists primarily of low, rounded hills with gradual slopes rather than steep inclines. This topographical character was shaped during the last ice age, when glacial activity smoothed many of the sharper features of the landscape.

Soil and Surface Characteristics

The soils around Pennington are predominantly well-drained loams with underlying shale and sandstone bedrock. These soils developed over millions of years from the weathering of sedimentary rocks. In various locations, especially along stream corridors, there are alluvial deposits where finer sediments have accumulated over time. The region experiences four distinct seasons with moderate precipitation distributed relatively evenly throughout the year. This consistent precipitation supports the lush vegetation that covers much of the non-developed land in the area, primarily deciduous forest and, in areas that have been cleared, agricultural fields.

Potential Areas for Solar PV Development

For largescale solar photovoltaic (PV) installations, several factors related to topography must be considered. The ideal locations would feature: The most promising areas for largescale solar PV development near Pennington would be the gently sloping agricultural lands that face south or southwest. These areas, particularly former farmland or cleared areas with minimal tree cover, offer favorable conditions without requiring extensive grading or forest clearing. Specifically, the agricultural plains extending south and west of Pennington provide relatively flat terrain with good solar exposure. These areas typically have slopes of less than 5 degrees, minimizing the need for extensive site preparation. The existing road infrastructure in these rural agricultural areas would also facilitate construction and maintenance access. Areas to avoid would include the stream corridors with their associated wetlands and flood zones, as well as any remaining forested tracts, which provide valuable ecological services. Additionally, the more densely populated residential and commercial zones around Pennington proper would be less suitable due to land use constraints and potential community concerns. The geological stability of the region is generally favorable for solar installations, with minimal risk of landslides or severe erosion on the gentler slopes. However, site-specific geotechnical studies would still be necessary to confirm suitability for the installation of mounting systems.

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 Pennington, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 24th of April 2025
Last Updated: Tuesday 9th of September 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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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.

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