Roscommon, Michigan, located in the Northern Temperate Zone at latitude 44.4984 and longitude -84.592, presents a mixed scenario for year-round solar energy generation via photovoltaic (PV) systems. The location experiences significant seasonal variations in solar energy production, which impact its overall suitability for solar power.
Seasonal Solar Production
Solar energy output at this location varies considerably throughout the year. Summer proves to be the most productive season, with an average daily output of 6.28 kWh per kW of installed solar capacity. Spring follows as the second-most productive season, generating 5.08 kWh per day. Autumn sees a significant drop in production to 2.87 kWh per day, while winter experiences the lowest output at just 1.68 kWh per day.
These figures indicate that Roscommon is most suitable for solar energy generation during the warmer months, particularly from late spring through early fall. The extended daylight hours and higher sun angles during this period contribute to increased energy production.
Optimal Panel Tilt
For fixed panel installations in Roscommon, the ideal tilt angle to maximize year-round solar production is 38 degrees facing south. This angle is calculated based on the location's latitude and seasonal sun positions, taking into account the Earth's elliptical orbit and daily solar elevation angles.
Environmental and Weather Factors
Several environmental and weather factors could potentially impact solar production in Roscommon:
- Snow accumulation: Roscommon's location in northern Michigan makes it prone to significant snowfall during winter months. Snow covering solar panels can drastically reduce energy production.
- Cloud cover: The region experiences frequent cloud cover, particularly during autumn and winter, which can diminish solar energy capture.
- Tree shading: Given the area's forested nature, nearby trees could cast shadows on solar panels, reducing their efficiency.
Preventative Measures
To mitigate these challenges and ensure greater energy production, consider the following measures when installing solar panels:
Install panels at a steeper angle (closer to 45 degrees) to promote snow sliding off more easily. Use snow-shedding systems or manual removal techniques to keep panels clear during winter. Choose high-efficiency panels that perform well in low-light conditions to maximize energy capture on cloudy days. Conduct a thorough site assessment to minimize shading from trees and structures, and consider selective trimming if necessary.
While Roscommon's location presents some challenges for year-round solar energy production, proper planning and installation techniques can help maximize the system's efficiency, particularly during the more productive 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 Roscommon
Seasonal solar PV output for Latitude: 44.4984, Longitude: -84.592 (Roscommon, 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 38° South in Roscommon, United States
To maximize your solar PV system's energy output in Roscommon, United States (Lat/Long 44.4984, -84.592) throughout the year, you should tilt your panels at an angle of 38° 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 Roscommon, 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 Roscommon, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 38° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 28° South in Summer | 48° South in Autumn | 58° South in Winter | 37° 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 Roscommon, 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 Roscommon, 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 Roscommon, United States
The topography around Roscommon, United States, located at approximately 44.4984 degrees North latitude and 84.592 degrees West longitude, is characterized by a mix of gently rolling hills, flat plains, and numerous small lakes and wetlands. This area is part of Michigan's Northern Lower Peninsula, which was shaped by glacial activity during the last ice age. The landscape surrounding Roscommon is predominantly forested, with a mix of deciduous and coniferous trees. The terrain is generally low-lying, with elevations ranging from about 1,000 to 1,300 feet above sea level. The region is dotted with numerous small lakes, ponds, and streams, creating a diverse ecosystem that supports a variety of wildlife.
Suitability 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. The ideal locations for solar farms would be relatively flat, open areas with minimal shading from trees or other obstructions. These areas should also have good access to existing power infrastructure for easy connection to the grid. Given the topography of the Roscommon area, the most suitable locations for large-scale solar PV would likely be found in the more open, less forested areas to the south and east of Roscommon. These regions tend to have more cleared land, including former agricultural fields or pastures, which could potentially be repurposed for solar energy production. Areas near major roads or power lines might also be advantageous for solar development, as they would simplify the process of connecting to the existing power grid. However, it's important to note that any large-scale solar project would need to carefully consider environmental impacts, particularly given the region's abundance of wetlands and wildlife habitats. While the Roscommon area may not be ideal for solar energy production compared to sunnier regions of the United States, advancements in solar technology have made it increasingly feasible to generate solar power in northern climates. With careful site selection and proper planning, there is potential for successful large-scale solar PV projects in the vicinity of Roscommon.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: Sunday 5th of January 2025
Last Updated: Monday 21st of July 2025
Tell Us About Your Work
We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.
Feeling generous?
Share this with your friends!

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.




