Jamestown, New York, located in the Northern Temperate Zone at coordinates 42.093, -79.244, presents a mixed picture for solar PV energy generation throughout the year. The location experiences significant seasonal variations in solar output, which affects its overall suitability for solar power production.
Seasonal Solar Performance
Solar energy generation in Jamestown peaks during the summer months, with an impressive 6.40 kWh per day for each kilowatt of installed solar capacity. Spring follows as the second-best season, yielding 5.34 kWh/day. However, autumn sees a considerable drop to 3.14 kWh/day, while winter performance plummets to a mere 1.74 kWh/day.
These figures indicate that Jamestown is most ideal for solar energy production from late spring through early fall. During this period, longer days and higher sun angles contribute to optimal solar panel performance. Conversely, the winter months present significant challenges due to shorter days, lower sun angles, and potential snow cover.
Optimal Panel Installation
To maximize year-round solar energy production in Jamestown, fixed solar panels should be installed at a tilt angle of 35 degrees facing south. This angle is calculated to optimize the panels' exposure to sunlight throughout the year, taking into account the location's latitude and seasonal sun patterns.
Environmental and Weather Factors
Several environmental and weather factors can impact solar production in Jamestown:
- Snow accumulation: Jamestown's location makes it prone to significant snowfall during winter months, which can cover solar panels and reduce their efficiency.
- Cloud cover: The region experiences frequent cloud cover, particularly in late fall and winter, which can diminish solar energy production.
- Temperature fluctuations: Extreme cold temperatures in winter can affect solar panel efficiency, while high summer temperatures may also slightly reduce performance.
Preventative Measures
To mitigate these challenges and ensure greater energy production, consider the following measures when installing solar panels in Jamestown:
- Use snow-shedding panel designs or install panels at a steeper angle to promote snow sliding off.
- Implement a regular cleaning schedule, especially after snowfall events.
- Choose high-efficiency panels that perform well in low-light conditions to maximize output during cloudy periods.
- Ensure proper ventilation behind panels to mitigate efficiency losses due to temperature extremes.
- Consider a ground-mounted system for easier maintenance and snow removal access.
While Jamestown's location presents some challenges for year-round solar energy production, implementing these strategies can help maximize the system's performance and make solar a viable energy option for the area.
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 Jamestown
Seasonal solar PV output for Latitude: 42.093, Longitude: -79.244 (Jamestown, 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 Jamestown, United States
To maximize your solar PV system's energy output in Jamestown, United States (Lat/Long 42.093, -79.244) 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 Jamestown, 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 Jamestown, 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 |
|---|---|---|---|
| 26° South in Summer | 45° South in Autumn | 56° South in Winter | 35° 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 Jamestown, 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 Jamestown, 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 Jamestown, United States
The topography around Jamestown, New York, located at latitude 42.093 and longitude -79.244, is characterized by a mix of rolling hills, valleys, and relatively flat areas. This region is part of the Allegheny Plateau, which extends across parts of New York, Pennsylvania, Ohio, and West Virginia. The landscape has been shaped by glacial activity during the last ice age, resulting in a diverse terrain with numerous small lakes, streams, and forested areas. Jamestown itself is situated in a valley along the Chadakoin River, surrounded by higher elevations. The city is nestled between two notable bodies of water: Chautauqua Lake to the west and the Allegheny Reservoir to the southeast. The surrounding countryside features a combination of agricultural land, woodlands, and scattered residential areas.
Potential for Large-Scale Solar PV
When considering areas nearby that would be most suited to large-scale solar photovoltaic (PV) installations, several factors come into play. Ideal locations for solar farms typically require relatively flat or gently sloping terrain, good sun exposure, and proximity to existing infrastructure. The areas to the north and east of Jamestown offer some promising locations for solar PV development. These regions tend to have more open, agricultural land with fewer steep slopes compared to the more rugged terrain found to the south. The flatter topography in these directions would make it easier and more cost-effective to install large arrays of solar panels. Specifically, the area around Falconer and Kennedy, northeast of Jamestown, presents potential opportunities for solar development. This region features expansive farmland with gentle slopes, which could accommodate sizeable solar installations without significant land modification. Another area of interest lies to the northwest of Jamestown, in the vicinity of Mayville and Chautauqua. While this region has more varied terrain, it also contains pockets of open land that could be suitable for solar farms, particularly on south-facing slopes that receive optimal sunlight throughout the day. It's important to note that while these areas may be topographically suitable, other factors such as local zoning regulations, environmental considerations, and grid connection capabilities would need to be thoroughly assessed before embarking on any large-scale solar PV project. Additionally, the region's climate, with its significant cloud cover and snowfall, may present challenges for solar energy production, necessitating careful planning and possibly the use of advanced solar technologies designed for such conditions.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: Tuesday 4th of March 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.




