Spring Valley, New York, located in the Northern Temperate Zone, offers a moderate potential for solar energy generation throughout the year. The location's solar performance varies significantly across seasons, presenting both opportunities and challenges for solar PV installations.
Seasonal Solar Performance
Summer stands out as the most productive season, with an impressive 5.80 kWh per day output for each kW of installed solar capacity. Spring follows closely, generating 5.23 kWh per day. These warmer months provide ideal conditions for solar energy production, with longer daylight hours and more direct sunlight.
Autumn sees a noticeable decrease in solar output, dropping to 3.28 kWh per day. Winter experiences the lowest production at 1.91 kWh per day, due to shorter days and the sun's lower position in the sky.
Optimal Panel Positioning
To maximize year-round solar production in Spring Valley, fixed panels should be tilted at a 35-degree angle facing south. This orientation helps capture the most sunlight throughout the year, balancing the sun's changing position across seasons.
Environmental and Weather Considerations
Several factors may impact solar production in Spring Valley:
- Snow accumulation in winter can temporarily reduce panel efficiency
- Tree shading, particularly from deciduous trees, may affect production seasonally
- Occasional severe weather events, such as hailstorms or hurricanes, could potentially damage panels
Preventative Measures
To mitigate these challenges, consider the following steps when installing solar panels:
Install panels at a steeper angle to promote snow sliding off. Implement a regular panel cleaning schedule, especially after snowfall. Trim surrounding trees to minimize shading. Use durable, high-quality panels rated for severe weather conditions. Consider adding a battery storage system to balance out seasonal production differences.
While Spring Valley may not be ideal for year-round solar production due to its significant seasonal variations, it still offers substantial potential, especially during spring and summer months. With proper planning and preventative measures, a solar PV system can be a valuable source of renewable energy in this location.
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 Spring Valley, New York
Seasonal solar PV output for Latitude: 41.1123, Longitude: -74.0255 (Spring Valley, 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 Spring Valley, New York, United States
To maximize your solar PV system's energy output in Spring Valley, New York, United States (Lat/Long 41.1123, -74.0255) 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 Spring Valley, 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 Spring Valley, 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 |
|---|---|---|---|
| 25° 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 Spring Valley, 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 Spring Valley, 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 Spring Valley, New York, United States
The topography around Spring Valley, located in Rockland County, New York, is characterized by gently rolling hills and valleys typical of the lower Hudson Valley region. This area sits at the foothills of the Ramapo Mountains, which are part of the larger Appalachian Mountain chain. The landscape is a mix of suburban development interspersed with patches of forest and open spaces. Spring Valley itself is situated in a relatively flat area, but the surrounding terrain becomes more varied and elevated as you move away from the town center. To the west, the land gradually rises towards the Ramapo Mountains, with increasing elevation and more rugged terrain. To the east, the topography becomes more gentle as it approaches the Hudson River, which is about 10 miles away.
Potential Areas for Large-Scale Solar PV
When considering areas nearby that would be most suited for large-scale solar photovoltaic (PV) installations, several factors come into play. Ideal locations would have relatively flat or gently sloping terrain, good sun exposure, and minimal shading from trees or buildings. The areas to the east and southeast of Spring Valley, towards the towns of Nanuet and Pearl River, might offer suitable locations for solar PV projects. These areas tend to have more open spaces and less dramatic changes in elevation compared to the western regions near the Ramapo Mountains. Former industrial sites or brownfields in the vicinity could also be potential candidates for solar installations. These areas often provide large, flat surfaces with existing infrastructure that can be repurposed for solar energy production. It's important to note that while the topography plays a crucial role in determining suitable locations for solar PV, other factors such as local zoning laws, land availability, and proximity to electrical infrastructure would also need to be considered for any large-scale solar project in the region.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 29th of November 2024
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.




