Solar Energy Generation in Mount Vernon, New York
Mount Vernon, New York, located in the Northern Temperate Zone, offers varying potential for solar energy generation throughout the year. This location experiences significant seasonal fluctuations in solar productivity, which is important to consider when planning a solar installation. The seasonal solar energy output per kilowatt of installed capacity shows a clear pattern. During summer months, Mount Vernon receives the highest solar production at 6.13 kWh per day for each kilowatt installed. Spring follows as the second most productive season with 5.65 kWh/day. Autumn shows a moderate output of 3.63 kWh/day, while winter experiences the lowest production at only 2.14 kWh/day.Optimal Solar Panel Configuration
For fixed solar panel installations in Mount Vernon, the ideal angle to maximize year-round energy production is 35 degrees tilted toward the South. This specific angle optimizes the capture of solar energy across all seasons, accounting for Mount Vernon's latitude and the varying solar elevation throughout the year.Seasonal Considerations
The substantial difference between summer and winter production (nearly three times more energy in summer) indicates that Mount Vernon is far from ideal for consistent year-round solar generation. The significant drop in winter months means supplementary energy sources may be necessary during this period. The optimal times for solar generation in Mount Vernon are from late spring through early fall (approximately May through September), when days are longer and the sun's path is higher in the sky, allowing for more direct solar radiation to reach panels.Environmental and Weather Factors
Several factors could potentially impact solar production in Mount Vernon:- Snow accumulation in winter can significantly reduce output if panels become covered, requiring either manual clearing or steep installation angles to promote snow sliding
- Tree coverage and building shadows may be issues in this suburban area, necessitating careful site assessment before installation
- The region experiences occasional severe weather including nor'easters and potential hurricane remnants that could damage installations if not properly secured
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 Mount Vernon, New York
Seasonal solar PV output for Latitude: 40.9039, Longitude: -73.837 (Mount Vernon, New York, 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 Mount Vernon, New York, United States
To maximize your solar PV system's energy output in Mount Vernon, New York, United States (Lat/Long 40.9039, -73.837) 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 Mount Vernon, New York, 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 Mount Vernon, New York, 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 | 34° 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 Mount Vernon, New York, 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 Mount Vernon, New York, 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 Mount Vernon, New York, United States
The topography surrounding Mount Vernon, New York, is characterized by gently rolling terrain situated within the larger Hudson Valley region. Mount Vernon itself sits at a moderate elevation of approximately 73 meters (240 feet) above sea level, with subtle variations throughout the city. The landscape features modest hills and shallow valleys, creating a slightly undulating surface rather than dramatic topographical features.
Regional Landscape Context
Mount Vernon is positioned in southern Westchester County, just north of the Bronx borough of New York City. The area represents a transition zone between the coastal plains near Long Island Sound to the east and the more pronounced Hudson River Valley to the west. This transitional character means the terrain gradually rises as one moves northward and westward from the city. The Bronx River forms a natural boundary along portions of Mount Vernon's western edge, carving a shallow valley through the landscape. This river valley represents one of the more significant topographical features in the immediate vicinity, though it's relatively modest compared to larger river valleys in the region.Urban Development Impact
It's important to note that Mount Vernon's natural topography has been significantly modified by extensive urban development. The city and its surrounding areas are densely built up, with residential neighborhoods, commercial districts, and transportation infrastructure covering much of the original landscape. This urban character extends throughout southern Westchester County and into the adjacent Bronx, creating a continuously developed metropolitan region. The remaining natural terrain is primarily preserved in scattered parks and green spaces, which provide glimpses of the area's pre-development contours. These areas typically feature the gentle hills and modest slopes characteristic of the broader region.Solar PV Suitability in the Region
When considering areas near Mount Vernon suitable for large-scale solar PV installations, several factors beyond just topography must be considered. The most promising locations would be:Former Industrial Sites
The broader region around Mount Vernon contains numerous brownfield sites and former industrial areas, particularly along the Hudson River corridor to the west. These already-disturbed lands with minimal current ecological value would be ideal candidates for solar development. Many of these sites offer relatively flat terrain and are already connected to grid infrastructure.Commercial Rooftops
While not traditional "large-scale" installations, the substantial commercial and industrial building stock in the broader region presents significant opportunities for distributed solar development. The flat roofs of shopping centers, warehouses, and manufacturing facilities throughout southern Westchester County and the Bronx could support considerable solar capacity without requiring additional land.Transportation Corridors
Land adjacent to major highways and rail lines in the region, particularly where noise or pollution makes other development less desirable, could potentially accommodate linear solar installations. These areas often feature modified topography with embankments and cuts that have already been engineered for stability.Challenges for Large-Scale Solar
It should be noted that the Mount Vernon area faces significant constraints for truly large-scale solar development. The high population density, expensive real estate, and limited open space make utility-scale solar farms challenging to site. Most substantial solar development would likely need to occur farther north in Westchester County or west into Rockland County, where more open land is available. The topography itself is generally amenable to solar development, with the gentle slopes typically not posing major engineering challenges. However, the combination of dense urban development, high land costs, and competing land uses represents the primary limitation rather than the physical landscape features.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!
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Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 26th of April 2025
Last Updated: Monday 21st of July 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.




