Solar Energy Potential in Lansing, Illinois
Lansing, Illinois, located in the Northern Temperate Zone, offers varying potential for solar PV energy generation throughout the year. The location experiences significant seasonal fluctuations in solar energy production that potential solar adopters should consider. The summer months provide the most abundant solar energy, with panels capable of generating approximately 6.25kWh per day for each kilowatt of installed capacity. Spring follows as the second most productive season, yielding about 5.26kWh daily per kilowatt. Production drops considerably in autumn to 3.32kWh per day, while winter sees the lowest output at just 1.99kWh daily per kilowatt of installed capacity.Optimal Panel Installation
For fixed solar panel installations in Lansing, the ideal tilt angle to maximize year-round energy production is 36 degrees facing South. This angle optimizes the capture of solar radiation across all seasons, accounting for the location's latitude and the Earth's orbital characteristics.Environmental and Weather Considerations
Several environmental factors in Lansing can impact solar energy production:- Snow accumulation during winter months can temporarily reduce panel output unless properly maintained
- Cloud cover is relatively common in the region, particularly during winter and autumn
- Potential air pollution from nearby industrial areas and Chicago metropolitan region may reduce solar irradiance
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 Lansing, Illinois
Seasonal solar PV output for Latitude: 41.5679, Longitude: -87.538 (Lansing, Illinois, 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 Lansing, Illinois, United States
To maximize your solar PV system's energy output in Lansing, Illinois, United States (Lat/Long 41.5679, -87.538) 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 Lansing, Illinois, 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 Lansing, Illinois, 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 |
|---|---|---|---|
| 26° 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 Lansing, Illinois, 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 Lansing, Illinois, 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 Lansing, Illinois, United States
The topography around Lansing, Illinois (41.5679°N, 87.538°W) is characterized by relatively flat terrain with gentle undulations, typical of the greater Chicago metropolitan area. Lansing sits on what was once the bed of glacial Lake Chicago, which existed during the last ice age. This geological history has resulted in predominantly level land with slight variations in elevation throughout the region. The area features a mix of urban development, suburban neighborhoods, and some remaining natural spaces. Lansing itself is situated at approximately 600 feet (183 meters) above sea level, with minimal elevation changes across the municipality. The landscape includes some small creeks and drainage features, but lacks significant hills or valleys that would create major topographical barriers.
Regional Landscape Features
To the east of Lansing lies the Indiana border, beyond which the terrain continues its generally flat character into the northwestern Indiana region. The Little Calumet River flows several miles to the north, creating one of the few notable topographical features in the vicinity. This waterway and its associated floodplains introduce some minor variations to an otherwise level landscape. The broader region surrounding Lansing is part of the Central Lowland province of the Interior Plains, specifically within the Great Lakes section. This physiographic area was heavily influenced by glacial activity, which scraped and flattened the terrain while depositing glacial till. The result is a landscape with good drainage characteristics and relatively stable ground conditions.Potential Areas for Solar PV Development
Several factors make certain areas near Lansing potentially suitable for large-scale solar photovoltaic (PV) installations. The generally flat terrain throughout the region is advantageous for solar development, as it minimizes grading requirements and construction complexity. Former industrial sites and brownfields in the greater Calumet region present prime opportunities for solar development. These areas, some located within 5-10 miles of Lansing, offer large contiguous parcels that have already been disturbed by previous development, making them environmentally preferable for new installations. Agricultural lands to the south and southeast of Lansing could also accommodate large-scale solar facilities. These areas feature open spaces with minimal shading from natural features or structures. The relatively flat farmland would require minimal site preparation, reducing development costs. The nearby transportation corridors, including areas adjacent to interstate highways and railway rights-of-way, represent another potential opportunity. These linear corridors sometimes include buffer zones that could support solar installations while making productive use of otherwise underutilized land. It's worth noting that while the topography is generally favorable, solar developers would need to consider other factors including grid connection capacity, local zoning regulations, and community acceptance. The presence of wetlands associated with the Calumet river system would also need to be avoided to prevent environmental impacts. The region's relatively dense population means that large-scale solar development might face space constraints compared to more rural areas. However, the flat terrain, existing infrastructure, and presence of previously developed sites still make the area around Lansing worthy of consideration for appropriately scaled solar PV projects.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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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 4th of May 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.




