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Flag of United StatesSolar PV Analysis of Chicago Heights, United States

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

Solar Energy Potential in Chicago Heights, Illinois

Chicago Heights, Illinois, located in the Northern Temperate Zone, offers varying potential for solar energy generation throughout the year. The location's latitude and longitude (41.5092, -87.5938) contribute to significant seasonal fluctuations in solar output. Summer presents the most favorable conditions for solar energy production, with an average daily output of 6.25 kWh per kW of installed solar capacity. This high yield is due to longer daylight hours and the sun's higher position in the sky. Spring follows as the second-best season, generating 5.26 kWh per day, as daylight hours increase and temperatures become milder. Autumn sees a noticeable decrease in solar production, with 3.32 kWh per day. This reduction is attributed to shorter days and the sun's lower angle in the sky. Winter poses the greatest challenge for solar energy generation in Chicago Heights, with a daily output of just 1.99 kWh. The combination of short days, low sun angle, and potential snow cover significantly impacts solar panel efficiency during this season.

Optimizing Solar Panel Installation

To maximize year-round solar energy production in Chicago Heights, fixed solar panels should be installed at a tilt angle of 36 degrees facing south. This optimal angle accounts for the location's latitude and seasonal variations in sun position, ensuring the best possible energy capture throughout the year.

Environmental and Weather Considerations

Several factors can affect solar production in Chicago Heights: 1. Snow accumulation: Winter snowfall can cover panels, reducing efficiency. Regular snow removal or installing panels at a steeper angle can help mitigate this issue. 2. Cloud cover: The region experiences significant cloud cover, particularly in winter months. Using high-efficiency panels can help maximize energy production even in low-light conditions. 3. Temperature extremes: Very hot summer days can slightly reduce panel efficiency, while cold winter temperatures can actually improve performance. Proper ventilation and high-quality panels can address temperature-related concerns. 4. Air pollution: Being near Chicago, air quality issues may occasionally impact solar radiation reaching the panels. Regular cleaning can help maintain optimal performance. By addressing these factors through thoughtful installation practices and regular maintenance, solar energy systems in Chicago Heights can achieve better year-round performance despite seasonal variations and environmental challenges.

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 Chicago Heights

Seasonal solar PV output for Latitude: 41.5092, Longitude: -87.5938 (Chicago Heights, 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 6.25kWh/day in Summer.
Autumn
Average 3.32kWh/day in Autumn.
Winter
Average 1.99kWh/day in Winter.
Spring
Average 5.26kWh/day in Spring.

 

Ideally tilt fixed solar panels 36° South in Chicago Heights, United States

To maximize your solar PV system's energy output in Chicago Heights, United States (Lat/Long 41.5092, -87.5938) 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: 41.5092, Longitude: -87.5938, the ideal angle to tilt panels is 36° South

Seasonally adjusted solar panel tilt angles for Chicago Heights, 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 Chicago Heights, 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

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Chicago Heights, United States as follows: In Summer, set the angle of your panels to 26° facing South. In Autumn, tilt panels to 45° 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 34° angle facing South to capture the most solar energy in Chicago Heights, 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 Chicago Heights, 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 Chicago Heights, 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 Chicago Heights, United States

The topography around Chicago Heights, United States, is characterized by relatively flat terrain with gentle slopes and subtle variations in elevation. This area is part of the larger Chicago metropolitan region, situated in the northeastern part of Illinois. The landscape is primarily composed of low-lying plains, typical of the Midwest, with occasional small hills and shallow depressions. Chicago Heights itself sits on slightly elevated ground compared to its immediate surroundings, with an average elevation of around 660 feet (200 meters) above sea level. The terrain gradually slopes downward towards Lake Michigan to the east, about 25 miles away. To the west and south, the land remains fairly level, with minor undulations across the landscape. The area's natural features have been significantly altered by human development over time. Urban and suburban sprawl has replaced much of the original prairie ecosystem, with residential neighborhoods, industrial zones, and commercial areas dominating the landscape. However, pockets of green spaces, including parks and forest preserves, can still be found scattered throughout the region.

Potential for Large-Scale Solar PV

When considering areas nearby that would be most suited to large-scale solar PV installations, several factors come into play. The relatively flat terrain in and around Chicago Heights offers advantages for solar development, as it minimizes the need for extensive land preparation and allows for efficient panel layout. Areas to the south and southwest of Chicago Heights may be particularly well-suited for solar PV projects. These locations tend to have more open, undeveloped land compared to the densely populated areas closer to Chicago. The presence of former agricultural fields or brownfield sites in these directions could provide ideal spaces for solar farms without encroaching on ecologically sensitive areas. Additionally, regions along major transportation corridors, such as Interstate 57 or U.S. Route 30, might offer suitable locations for solar installations. These areas often have existing infrastructure that can support the development and maintenance of large-scale solar projects. It's important to note that while the topography is generally favorable, other factors such as local zoning regulations, proximity to electrical grid infrastructure, and environmental considerations would need to be carefully evaluated when selecting specific sites for large-scale solar PV development in the Chicago Heights area.

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 Chicago Heights, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 17th of April 2025
Last Updated: Monday 11th of August 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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