Rock Hill, New York, located in the Northern Temperate Zone, offers a moderately favorable location for solar PV energy generation throughout the year. The seasonal variations in electricity output per kW of installed solar reveal both opportunities and challenges for solar energy production in this area.
Seasonal Solar Performance
Summer stands out as the most productive season, with an impressive 5.78 kWh/day output per kW of installed solar. Spring follows closely behind at 5.19 kWh/day, making these two seasons ideal for maximizing solar energy generation. Autumn sees a significant drop to 3.22 kWh/day, while winter experiences the lowest output at 1.85 kWh/day.
The substantial difference between summer and winter production highlights the impact of seasonal variations on solar energy generation in Rock Hill. This disparity is primarily due to changes in daylight hours and sun angle throughout the year.
Optimal Panel Tilt
For fixed panel installations in Rock Hill, the ideal tilt angle to maximize year-round solar production is 36 degrees facing South. This angle is calculated to optimize energy capture across all seasons, balancing the higher summer sun with the lower winter sun position.
Environmental and Weather Factors
Several factors could potentially impact solar production in Rock Hill:
- Snow accumulation in winter months, which can temporarily reduce panel efficiency
- Tree shading, particularly in forested areas common to the region
- Occasional cloudy or overcast days, especially during spring and fall
To mitigate these factors, consider the following preventative measures:
1. Install panels at the recommended 36-degree tilt to promote snow sliding off.
2. Conduct a thorough site assessment to minimize shading from trees and structures.
3. Use high-efficiency panels and micro-inverters to maximize production even in less-than-ideal conditions.
4. Implement a regular cleaning and maintenance schedule to ensure optimal performance year-round.
While Rock Hill experiences significant seasonal variations in solar output, with proper planning and installation techniques, it can still be a viable location for solar PV energy generation, particularly during the spring and summer months.
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 Rock Hill, New York
Seasonal solar PV output for Latitude: 41.6259, Longitude: -74.5977 (Rock Hill, 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 36° South in Rock Hill, New York, United States
To maximize your solar PV system's energy output in Rock Hill, New York, United States (Lat/Long 41.6259, -74.5977) throughout the year, you should tilt your panels at an angle of 36° 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 Rock Hill, 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 Rock Hill, New York, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 36° 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 | 46° 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 Rock Hill, 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 Rock Hill, 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 Rock Hill, New York, United States
The area around Rock Hill, located in Sullivan County, New York, is characterized by a diverse and picturesque topography typical of the Catskill Mountain region. The landscape is a mix of rolling hills, small valleys, and forested areas, with elevations ranging from around 1,000 to 1,500 feet above sea level. The terrain is generally undulating, with gentle slopes and occasional steeper inclines. Rock Hill itself sits on a slight elevation, surrounded by a mix of wooded areas and cleared land. The nearby Neversink River valley adds to the topographical variety, carving a path through the landscape and creating some more dramatic changes in elevation along its course.
Solar PV Potential
When considering areas nearby that would be most suited to large-scale solar PV installations, there are several factors to take into account. Ideally, solar farms require relatively flat or gently sloping land with good sun exposure. In the vicinity of Rock Hill, some of the cleared agricultural lands and former pastures could potentially be suitable for solar development. Areas to the south and southeast of Rock Hill, where the terrain tends to be less steep and more open, might offer good opportunities for solar PV installations. These locations often have fewer trees and obstructions that could cast shadows on solar panels. Additionally, some of the higher elevation areas with southern exposure could be advantageous for capturing maximum sunlight throughout the day. However, it's important to note that the region's forested nature and variable topography may limit the availability of large, contiguous areas ideal for extensive solar farms. Any potential sites would need to be carefully evaluated for their specific characteristics, including slope, soil stability, and proximity to existing power infrastructure. Environmental considerations are also crucial in this region, given its natural beauty and ecological importance. Any large-scale solar development would need to balance energy production goals with preservation of the area's scenic and natural resources.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: Wednesday 15th of January 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.




