Phillipsburg, New Jersey shows moderate potential for year-round solar energy generation, though with significant seasonal variation typical of locations in the Northern Temperate Zone.
Seasonal Solar Performance
The solar output data reveals a clear seasonal pattern at this location. Summer produces the highest energy yields at 5.96 kWh per day per kW of installed capacity, making it the peak season for solar generation. Spring follows closely behind with 5.32 kWh per day per kW, representing the second-best period for solar production. Autumn sees a notable drop to 3.37 kWh per day per kW, while winter presents the most challenging conditions with only 2.11 kWh per day per kW of output. This winter figure represents roughly one-third of the summer production capacity.Optimal Installation Setup
For maximum year-round energy production at Phillipsburg, solar panels should be installed at a fixed tilt angle of 35 degrees facing south. This angle has been calculated to optimize total annual solar output by accounting for the sun's changing position throughout the year and weighting for the actual solar energy potential during different seasons.Local Factors Affecting Solar Production
Several environmental and weather factors in the Phillipsburg area can significantly impact solar energy production:- Snow accumulation: Winter weather can cause snow to build up on panels, blocking sunlight and reducing already limited winter output
- Humidity and haze: The region's proximity to major metropolitan areas and water bodies can create atmospheric conditions that reduce solar irradiance
- Severe weather events: Thunderstorms, ice storms, and occasional hurricanes can damage equipment or create temporary outages
- Tree coverage and shading: The heavily forested nature of New Jersey can create shading issues, particularly during lower sun angles in fall and winter
Preventative Measures for Better Performance
To maximize solar production despite these challenges, several installation strategies can help:- Steep panel angles: The recommended 35-degree tilt helps snow slide off naturally rather than accumulating
- Quality mounting systems: Robust racking designed for regional wind and snow loads prevents damage and maintains optimal positioning
- Strategic placement: Careful site selection to minimize shading from trees, especially during peak sun hours
- Regular maintenance: Scheduled cleaning and inspection to remove debris, snow, or other obstructions
- Microinverters or power optimizers: These technologies can minimize the impact when individual panels are partially shaded
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 Phillipsburg
Seasonal solar PV output for Latitude: 40.6937, Longitude: -75.1902 (Phillipsburg, 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 Phillipsburg, United States
To maximize your solar PV system's energy output in Phillipsburg, United States (Lat/Long 40.6937, -75.1902) 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 Phillipsburg, 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 Phillipsburg, 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 | 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 Phillipsburg, 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 Phillipsburg, 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 Phillipsburg, United States
Topographical Features of Phillipsburg
Phillipsburg sits in the Lehigh Valley region of eastern Pennsylvania, positioned along the Delaware River where it forms the border with New Jersey. The town occupies relatively flat terrain at an elevation of approximately 230 feet above sea level, nestled within a river valley that has been carved through the surrounding landscape over millennia. The Delaware River flows northeastward past the community, creating a natural boundary and influencing the local topography with its floodplain and associated wetlands. The immediate area around Phillipsburg features gently rolling hills that rise gradually from the river valley floor. These hills are part of the broader Appalachian foothills system, characterized by moderate slopes and rounded summits rather than sharp ridges or dramatic elevation changes. The terrain becomes more pronounced as distance from the river increases, with elevations reaching 400 to 600 feet on the higher ground to the north and south of the valley. Agricultural lands dominate much of the surrounding countryside, taking advantage of the fertile soils deposited by centuries of river activity. These farm fields are interspersed with patches of deciduous forest, particularly on steeper slopes where cultivation is less practical. The landscape shows clear evidence of glacial influence, with smoothed contours and occasional rocky outcrops of limestone and shale that are characteristic of this geological region.Optimal Areas for Large-Scale Solar Development
The most suitable locations for large-scale solar photovoltaic installations around Phillipsburg would be the extensive agricultural fields that stretch across the gently sloping terrain south and west of the town. These areas offer several advantages for solar development, including relatively flat to moderately sloping ground that requires minimal grading, large contiguous parcels of land that can accommodate utility-scale installations, and existing agricultural zoning that may be more receptive to renewable energy projects. The elevated plateaus located approximately three to five miles south of Phillipsburg present particularly attractive opportunities. These areas combine favorable topography with good access to existing transmission infrastructure along major transportation corridors. The terrain in these locations typically slopes gently toward the south and southwest, providing optimal orientation for solar panel arrays while maintaining manageable grades for construction and maintenance access. Former industrial sites and brownfields in the broader region also represent promising candidates for solar development. These locations often feature cleared, relatively level ground with existing electrical infrastructure nearby, though they may require environmental remediation before development can proceed. The proximity to established electrical transmission lines and substations makes these sites economically attractive despite potential cleanup costs. Areas to avoid for large-scale solar installations include the immediate river floodplain, which faces periodic inundation and regulatory restrictions, as well as the steeper hillsides where excessive grading would be required. Forested areas, while potentially suitable from a topographical standpoint, would require significant clearing that could face environmental opposition and permitting challenges. The most practical approach focuses on previously disturbed agricultural or industrial lands where solar development can proceed with minimal environmental impact and community resistance.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: Sunday 20th 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.
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.




