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Flag of United StatesSolar PV Analysis of Niles, Illinois, United States

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Niles, Illinois, United States (by season)

Solar Energy Potential in Niles, Illinois

Niles, Illinois, United States, located in the Northern Temperate Zone, offers variable potential for solar PV energy generation throughout the year. The seasonal output from solar panels shows significant fluctuation, with summer being the most productive period and winter showing considerably reduced generation capacity. The seasonal breakdown of electricity output per kW of installed solar capacity reveals a pattern typical of northern locations:
  • Summer: 6.21 kWh/day (highest production)
  • Spring: 5.15 kWh/day (second highest)
  • Autumn: 3.11 kWh/day (moderate production)
  • Winter: 1.74 kWh/day (lowest production)
This pattern indicates that Niles experiences strong solar potential during the warmer months (late spring through early fall), with production peaking during summer. The significant drop in winter months (nearly 72% less than summer production) reflects the shorter days and lower sun angle typical of this northern latitude. For fixed panel installations in Niles, the ideal angle to maximize year-round production is 36 degrees tilted toward the South. This specific angle optimizes the capture of available sunlight across all seasons, balancing the higher summer sun with the lower winter sun position.

Environmental and Weather Factors

Several significant factors could impede solar production in Niles. The Chicago area, including Niles, experiences substantial snowfall during winter months, which can cover panels and reduce or eliminate production. The region also faces frequent cloudy days throughout the year, particularly in late fall and winter, further limiting solar potential during these already low-production periods. Preventative measures to enhance solar production in Niles include: Installing panels at the recommended 36-degree tilt not only optimizes year-round production but also helps snow to slide off more easily. Snow-clearing systems or regular manual clearing may be necessary during winter months. Additionally, using high-efficiency panels can help maximize energy capture during the limited productive hours of winter days. Microinverters or power optimizers can be valuable in this location as they minimize the impact of partial shading from snow, nearby trees, or buildings, ensuring that a partially covered array can still produce energy from unaffected panels. Given the significant seasonal variation, homeowners in Niles might consider slightly oversizing their systems to compensate for the winter production deficit, particularly if they aim for year-round energy independence.

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 Niles, Illinois

Seasonal solar PV output for Latitude: 42.0307, Longitude: -87.8107 (Niles, 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:

Summer
Average 6.21kWh/day in Summer.
Autumn
Average 3.11kWh/day in Autumn.
Winter
Average 1.74kWh/day in Winter.
Spring
Average 5.15kWh/day in Spring.

 

Ideally tilt fixed solar panels 36° South in Niles, Illinois, United States

To maximize your solar PV system's energy output in Niles, Illinois, United States (Lat/Long 42.0307, -87.8107) 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.

The sun
At Latitude: 42.0307, Longitude: -87.8107, the ideal angle to tilt panels is 36° South

Seasonally adjusted solar panel tilt angles for Niles, 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 Niles, 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 46° South in Autumn 56° South in Winter 35° South in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Niles, Illinois, United States as follows: In Summer, set the angle of your panels to 26° facing South. In Autumn, tilt panels to 46° facing South for maximum generation. During Winter, adjust your solar panels to a 56° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 35° angle facing South to capture the most solar energy in Niles, Illinois, United States.

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 Niles, 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 Niles, Illinois, United States.

Our calculation method

  1. Solar Position:
    We determine the Sun's position on the Winter solstice using the location's latitude and solar declination.
  2. Shadow Projection:
    We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle.
  3. 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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Niles, Illinois, United States

The terrain around Niles, Illinois is predominantly flat, characteristic of the greater Chicago metropolitan area which sits on what was once a glacial lake plain. Niles itself sits at an elevation of approximately 620-640 feet above sea level with minimal variation throughout the village and surrounding areas. This flatness is part of the larger Great Lakes Basin region, where the landscape was shaped by glaciation during the last ice age, leaving behind a relatively level topography with gentle undulations. The area features some very subtle rolling terrain, but lacks any significant hills or valleys that would create major topographical challenges. The Des Plaines River flows nearby to the west, creating a shallow river valley, but even this geographical feature presents only modest changes in elevation. The North Branch of the Chicago River also runs through the eastern portion of the area, similarly creating minimal topographical variation.

Solar PV Potential in the Area

Given the flat terrain around Niles, several nearby areas would be potentially suitable for large-scale solar PV installations from a purely topographical perspective. The flat landscape eliminates concerns about shading from hills or difficulties with construction on steep slopes. Areas to the northwest and west of Niles, extending toward Des Plaines and Mount Prospect, contain some larger open spaces that could accommodate solar installations. These areas benefit from the consistently flat terrain that makes construction and maintenance more straightforward. The relatively open areas near O'Hare International Airport (though outside immediate flight paths and restricted zones) present flat terrain that could be considered for solar development. However, these would need to be evaluated for potential glare issues affecting aviation. Some of the industrial corridors along major transportation routes in the region also offer flat, already-developed land where large rooftop solar installations might be feasible alternatives to ground-mounted systems. It's worth noting that while the topography is favorable, the Niles area is heavily urbanized, which significantly limits available land for large-scale solar development. Most viable sites would likely be brownfield redevelopments, large commercial rooftops, or areas along transportation corridors rather than dedicated solar farms on undeveloped land. The few remaining open spaces in the region, such as forest preserves and parklands along the Des Plaines River and North Branch of the Chicago River, would likely be protected from development. Any large-scale solar implementation would need to consider not just topography but also existing land use, zoning regulations, and the dense suburban character of 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

Article: Solar PV Analysis of Niles, Illinois, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 28th of April 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.

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