Madison, New Jersey is a reasonably good location for solar energy generation, though it experiences significant seasonal variation typical of the Northern Temperate Zone climate.
Seasonal Solar Performance
The solar energy output at Madison varies considerably throughout the year. Summer provides the strongest performance at 6.02 kWh per day per kW of installed solar capacity, making it the peak season for solar generation. Spring follows as the second-best season with 5.44 kWh per day per kW, offering nearly as much energy production as summer. Autumn sees a notable decline to 3.48 kWh per day per kW, while winter represents the most challenging period with only 2.14 kWh per day per kW. This winter output is less than half of the spring production and roughly one-third of summer's peak performance. For fixed panel installations at this location, the ideal tilt angle is 35 degrees facing south to maximize total year-round solar energy production.Local Factors Affecting Solar Production
Several environmental and weather factors in Madison, New Jersey can impact solar panel performance:- Snow accumulation: Winter snow can completely block solar panels, reducing output to zero until cleared
- Ice formation: Ice buildup can similarly obstruct sunlight and damage panels if not properly managed
- Deciduous tree shading: Large trees that lose leaves seasonally can create varying shade patterns throughout the year
- Atmospheric moisture: High humidity and frequent cloud cover can reduce solar irradiance
- Storm damage: The region experiences nor'easters, thunderstorms, and occasional severe weather that can damage installations
Preventative Measures for Better Performance
Installing solar panels with steeper tilt angles (closer to 40-45 degrees) can help snow slide off more easily, though this may slightly reduce overall annual production. Choosing panels with smooth surfaces and anti-reflective coatings can minimize snow and ice adhesion. Proper site selection away from large deciduous trees or planning for tree trimming can prevent seasonal shading issues. Installing micro-inverters or power optimizers can help minimize the impact when partial shading does occur. Using robust mounting systems designed for local wind and snow loads, along with impact-resistant panels, can protect against storm damage. Regular maintenance schedules that include snow removal and debris cleaning will help maintain optimal performance 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 Madison, New Jersey
Seasonal solar PV output for Latitude: 40.7619, Longitude: -74.4185 (Madison, New Jersey, 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 Madison, New Jersey, United States
To maximize your solar PV system's energy output in Madison, New Jersey, United States (Lat/Long 40.7619, -74.4185) 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 Madison, New Jersey, 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 Madison, New Jersey, 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 Madison, New Jersey, 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 Madison, New Jersey, 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 Madison, New Jersey, United States
Topography Around Madison, New Jersey
Madison sits in the heart of Morris County, New Jersey, within the Piedmont physiographic province that characterizes much of north-central New Jersey. The terrain around Madison features gently rolling hills and shallow valleys that are typical of this glacially-modified landscape. The elevation ranges from approximately 200 to 400 feet above sea level, with the town itself positioned on relatively level ground that slopes gradually toward the southeast.
The area displays the characteristic topography of the Newark Basin, an ancient rift valley filled with sedimentary rocks and later shaped by glacial activity during the last ice age. This has created a landscape of modest relief with numerous small ridges and depressions. The Passaic River watershed influences much of the drainage patterns in the region, with several small streams and tributaries creating minor valleys that cut through the otherwise gently undulating terrain.
To the west and northwest of Madison, the land gradually rises toward the higher elevations of the New Jersey Highlands, while to the east and southeast, the terrain becomes progressively flatter as it approaches the coastal plain. The immediate vicinity features a mix of wooded areas, suburban developments, and some remaining agricultural land, all situated on this moderately rolling topography.
Optimal Areas for Large-Scale Solar Development
The most suitable locations for large-scale solar photovoltaic installations around Madison would be the relatively flat to gently sloping areas that extend southeast and east of the town. These areas offer several advantages including minimal grading requirements, reduced installation costs, and optimal positioning for solar panel arrays. The flatter terrain in these directions also tends to have fewer trees and less dense development, making land acquisition potentially more feasible.
South-facing slopes throughout the region present excellent opportunities for solar development, as they naturally provide the ideal orientation for maximum solar exposure throughout the day. The gentle gradients typical of the area mean that even sloped sites would not require extensive earthwork or specialized mounting systems, keeping development costs reasonable.
Areas of former agricultural land or open fields scattered throughout Morris County and adjacent Somerset County to the south would be particularly well-suited for solar farms. These locations typically have minimal tree cover, existing access roads, and soil conditions that can easily accommodate ground-mounted solar arrays. The relatively stable geology of the Piedmont region also provides good foundation conditions for solar installations.
The proximity to existing electrical transmission infrastructure is another important consideration. Areas near major power lines and substations would be preferable for large-scale solar development, as they would minimize the need for extensive new transmission construction. The developed nature of the region means that electrical infrastructure is generally well-established throughout the area surrounding Madison.
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: Friday 18th of July 2025
Last Updated: Wednesday 6th 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.




